Ls1 fuel pressure. FAST LSX™ to LS2 Fuel Rail Conversion Kit.

• Ls1 fuel pressure. I'm sending them a email to get their take but I feel a .

  Ls1 fuel pressure For various circumstances, the car sat for 3-4 years before the install was complete, but the gas tank was cleaned out prior and there was just a I'm having fuel pump problems and am looking for the location of the fuel pressure sensor. That is why I bought a "hopefully" real pump. If you are reading good fuel pressure and it takes a few turns to start the car, my guess is your check valve is bad. Thread: 98 ls1 fuel pressure question. Im still on the stock fuel system. So fuel pump is maintaining pressure at wot. they are 4an fittings and dont need teflon or anything to seal up. Jump to Latest 15K views 6 replies 6 participants last post by jeffpreyss Jul 18, 2011. Fits engine RPO codes: LS1 LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LS2 LH6 L92 L76 LY2 LY5 LY6 LC9 LFA LH8 LMG LS3 L98 L9H L20 L94 LZ1 L99 L 96 LS7 LSA LS9 LS4 LC8 L77 Double sided bracket flips over for mounting on opposite cylinder head PicClick Insights - Holden Vy Vz Commodore Ls1 V8 Fuel Pressure Regulator New Genuine 92146686 PicClick Exclusive. Jake@EPP. EFILive LS1 Fuel Pressure Sending Unit Tutorial EFILive V7 Scan and Tuning Tool support@efilive. I'm sending them a email to get their take but I feel a Anyway, after trying a ton of different things to fix it, I finally bought a fuel pressure gauge and checked that out. the car is almost stock, but the most power I would like Welcome to the LS1. Here is my web page on the regulator install. Sommer86@6LE. Also the increments on the gauge are not that precise either. Here are some pictures with it installed. I am asking this because I have an 02 LS1 in my 79 malibu and used a walboro in tank pump with the 99 vette filter/reg and belive that the filter/reg was bad from the If your fuel pressure is 100 psi, your fuel trims and o2 readings would have crazy readings to match your super high fuel pressure. Gauge says 55-56 when the engine is idling. The other major difference between fuel injectors is the fuel pressure. 050 242 intake and 252 exhaust lobe separation is 115. LS1 fuel injectors operate at a lower fuel pressure than LS2 or LS3 fuel injectors. The 255lph pump on Racetronix's site is recommended for use in LT1's, which I believe has lower fuel pressure than that of the LS1. Time to head to Autozone. 143 posts · Joined 2006 Add From the Holden Service CD:" The fuel system used with the GEN III V8 engine is a ‘single line’ system, which means that the previously used fuel return line from the engine fuel rail, is no longer used. Prior to the swap, upon energizing the ignition the fuel pressure would jump up to the high 40's or so and then (without starting the engine) quickly bleed off. Whats the best way to do it? I cant quite see enough back there to tell. As for the computer controlled. So more pressure means more fuel. Thread Tools. Service: Fuel Just installed a Racetronix 255 fuel pump and harness because my old pump was not keeping up at WOT, changed fuel filter as well. D. An old fuel pressure regulator does both. My pressure reads 50 psi at key on and 58 at idle. With the engine idling Mine is at 61psi, to accomodate the mods! Mine is set to 55, was 57 stock. 95 $ 79. 2 new watchers per day, 17 days for sale on eBay. The more you learn about EFI, the more Hi Guys, After almost 5 years since I sold my ´99 manual Z28, I have bought another one !!, this time also a 99 but with automatic transmission. To make your LS1 engine swap a little less painful, we stock this 2-in-1 fuel filter/fuel pressure regulator assembly. since the regulator is in the fuel tank and the car has 106k miles on it, it would be a great time to upgrade the pump. The stock fuel lines under hood looked like the fittings were not so friendly for adapting to the sending unit. 4 pounds per hour (lbs/hr) of fuel at 58. No boost-a . I want to get rid of the BAP. A couple months back, I upgraded to a Racetronix fuel pump and hotwire setup. You need a fuel line disconnect tool to undo the rail and there are a few bolts that hold the rest down. I confirmed it is indeed a fuel pressure regulator. Car just took about 10 seconds of cranking before it fired, other than that it ran fine but it was just a small crack in that tubing, once running was holding 56psi of pressure Fuel Pressure. Jump to Latest 708 views 1 reply 2 participants last post by jmd Jan 14, 2009. The sender attaches to the schrader valve on the fuel rail. If you have any before the O2s, it will make the PCM dump in fuel. LS1 fuel pressure. Fuel trims read 128 when air/fuel ratio is spot The 96 FSM lists 41-47 psi as the fuel pressure range with the vacuum hose to the Fuel Pressure Regulator disconnected and the vacuum source plugged. Spare parts want me As stated before just relieve pressure on the BLACK cap on the end of the fuel rail. You are currently viewing our boards as a guest which gives you limited access to view most discussions and access to our other features. 7L L98 TPI engine has a Schrade I'm a convert Ford guy so forgive me if this is a dumb question. View To make your LS1 engine swap a little less painful, we stock this 2-in-1 fuel filter/fuel pressure regulator assembly. It reads 22 psi should be between 41 and 47 psi. The fuel pump puts out a constant pressure, your regulator "regulates" the pressure at the rail depending on your Well you can check if you have pressure by taking the cap off of the fuel rail on the drivers side rail. 1670 posts · Joined 2010 Add to quote; Only show this user #1 · Jun 22, 2013. If your O2s were "bad," that could be why. Basically every GM V8 fuel injection car since the 1985 Corvette 5. Does this sound like a fuel pressure regulator clogged fuel injectors or fuel pump problem? are there any other testing procedures I could do to narrow it down? injectors are stock. I did not experience the abnormally high pressure (70+ PSI) like what others suggested and no leaks from the filter so far! The Fuel pump then is free to pump without regulator opening and returning fuel to tank. On Sale: $ 123. R. Popularity - 4 watchers, 0. Then you can install your gauge assuming it came with the correct fittings. A 1/8-27 NPT male Fuel filter was changed about 6 months ago. This is an LT1 not an LS1, so the PCM does not monitor the fuel my camaro started running a little rough at idle in drive, and started pinging on the the big end at about 4500 rpms. CWB 0-100 PSI Liquid Filled Mechanical Gauges from Marshall Instruments It is made in USA with stainless steel case and Brass internal's and from everything I read are built to be directly attached to fuel line. Hi guys, I started my LS yesterday for the first time. 492 posts · Joined As for oil pressure, oil viscosity will change pressure, as well as temp,rpm,etc. Every one but shoe box needs a thump on the noggin. Any time you run different fuel pressure you'll need to retune the PCM so it knows exactly how much fuel is flowing when at WOT. Maybe someone else knows. Some may say swap 3 and 4 in the order, but LS Fuel Pressure Regulator Cylinder Head Mounting Fits all LS cylinder heads on both sides, front and rear. View Profile View Forum Posts View Blog Entries Junior Member Join Date Jul 2009 Location Meadville PA Posts 43 Black 1998 formula trans am. Very high amount watching. In other words; when you turn the key on with out starting engine the fuel pump will come on for a few seconds then is supposed to shut off, mine doesn't, keeps on running. In the mean time I'm sticking a Aeromotive Fuel Pressure regulator on their just so I can drive the car alittle bit. Not really a concern Hey guys, I'm running a 383 with a D1SC and 14lbs of boost. Sometime they look great while idling, but are too weak to hold enough pressure while loading the engine in high gear, and cause lean conditions. The gray pod is a Fuel Pressure Sensor for a gauge on my A-Pillar. Im putting a new FPR on soon. I ask because there is an oil barbell that is on the back side of the block that if missing you'll never have oil This fuel filter is a direct replacement of the one on my C5 Corvette. To accurately check your fuel pressure, the vacuum hose should be removed from the fuel pressure regulator and its vacuum source plugged. Hose and additional fittings sold separately. Still the same. [LS1] LS1 Fuel rail damper. I assume that is a normal drop, right? So if pressure is good, does it mean the pump is perfectly fine? Or is there some other way to check? Then press the valve put a rag over it first because it will leak fuel. I do not Here is the deal i have a 2002 Pontiac trans am ws6. 1MM) O. I notice most after I found an online calculator which compensates for fuel rail pressure and I used 58psi instead at 85% duty cycle. LS1 no oil pressure was this a total rebuild, meaning you blew it apart and put back together. Registration is fast, Finally got my buddy to connect a fuel pressure guage up and it seems my starting woes are do to the fuel pressure dropping like mad. if I turn off the KB BAP. My fuel pressure gauge reads 58psi and does not drop. Fuel Pressure Regulator location I've gotten mixed answers from my mechanic friendsone says it's located in the tank with the pump and the other says its the thing located in between the stock fuel rails. During normal driving yesterday (recently bought !!) in highway it was ok, in the middle, oil LS1 Fuel Injector Clinic Injector Set: 8x1000cc/min (95lbs/hr) at 3 bar (43. FAST OEM Fuel Line Conversion Kit (1998-02 LS1 F-Bodies) for Billet Fuel Rails $ 159. FAST OEM-Style Fuel GlowShift 1-1/2” (38mm) Black Dial Liquid Filled 100 PSI Fuel Pressure Gauges for the Chevy GM LS require no hardware or wiring to display LS1, LS2, LS3 or LS6 engine fuel pressure levels. I have an 05 GTO, do I have a returnless fuel system? If so, where are the controls for it in the software. Custom Fuel Gauge. This is because the LS1 engine doesn't produce as much power as the LS2 or LS3 engines, and therefore doesn't require as much fuel pressure to operate efficiently. com forums. I too have seen many complaints with the AFPR and I'm not sure I'd want to run a stock LT1 pump at that much pressure. Second question. The mechanical fuel pressure gauge is a cheapy I bought from Speed Inc. sjd73ss. 020 over,cnc ported heads,flowed 269 intake and 200 exh,fully ported LT1 edelbrock intake,BBk 58 mm tb,comp cam duration @. the haynes catalog states with key on 55 to 60 psi. You could also put a standard fuel pressure tester on the fuel rail to check pressure. Ryan Burris Discussion starter. Unless of course you have modified the fuel rail so it has no test port. This non-adjustable fuel regulator has a fixed pressure at 58 psi. View Profile View Forum Posts Private Message Advanced Tuner Join Date Jun 2008 ls1 fuel pressure regulator and filter for ls1 ls2 conversions. Currently with the key on fuel pressure is at 52lbs. This analog mechanical fuel pressure gauge monitors levels from 0 to 100 PSI in real time to protect your engine and improve efficiency. So, if your fuel pressure is 38 psi WITH THE VACUUM HOSE CONNECTED TO THE REGULATOR and with the engine idling/driven at part throttle that's normal. I swapped the relay with the one for the A/C-no help Checked all of the fuses-all good Checked for pressure-0 Listened for the pump-nothing So I jumped right into it, and cut an We stock these Fuel Pressure Regulator brands for the Saturn LS1: SKP and Delphi. We stock fuel pressure regulator parts for most Saturn models including L300, SL1, SW2, SL2, SL, L100, SC1, LW2, LW200, LW300, SC2, LS2, LS, I got the SCSS gauge pod with their fuel and boost pressure gauges. wickedbeast. mechanical 0-100 PSI fuel pressure gauge AND ADAPTER for the GM LS1, LS2, LS3, LS6, LT1 and L98 engines. Saturated / High Impedance Injectors. A changed design, modular fuel sender assembly is located in the fuel tank, that incorporates a fuel pressure regulator, a fuel reservoir, the fuel sender unit, roll-over valve VMS Racing LIQUID FILLED 1 1/2" (38. The car has the Racetronix hotwire kit installed with the brand new LS1 fuel pump. I fear the BAP shitting the bed at the wrong time. Therefor, yes you should get an adjustable FPR. Thread starter Fu Manchu; Start date Feb 7, 2022; Fu Manchu I gotta lotta problems with you people! Joined Mar 18, 2006 Messages 21,446 Reaction score 28,582 Points 113 Location Western Australia Members Ride Kia Sorrento, VZ Crewman, VZ Cross 8, & ya mum. Once the engine is started and vacuum is present in the intake manifold, this applies vacuum to the FPR to reduce fuel pressure by same amount of vacuum present to maintain the same pressure difference as you had at prime. The pulse dampener looks like an old fuel pressure regulator so it's confusing. . fuel pressure regulator Jump to Latest Follow 1K views 6 replies 3 participants last post by superchargedgp Oct 26, 2007 Fuel Pressure Gauge AdapterGM LS Series Engines, -4AN female to 1/8" NPT, Silver finish AF146-02S 146-02S To ensure a precise fuel pressure reading for optimum performance Aeroflow LS fuel pressure adapter allows the user to adapt a fuel pressure gauge to the standard LS series fuel rail. 0,walbro 255,I am running stock 24lb injectors until after x-mas. Under those conditions the pressure you see is the max pressure the engine will see during WOT operation, that's assuming the If your fuel pressure is 50 psi, it will cause rich running because ecm is calculating fuel delivery at around 40 psi. I ended up going with the first one. it drops as soon as I get on it. The green cap is for the EVAP system. 5psi) fuel pressure and 110lbs/hr (1155cc/min) at OE 58psi (4 bar) fuel pressure. C. Utilizing the latest injector technology and featuring I am installing a fuel pressure gauge on our car. 49 posts · Joined 2009 Add to quote; I have a fuel pressure gauge so I knew what was going on when it started happening and I had recently installed a Walbro fuel pump so suspected the pump was no good. Does anybody have a part # for a fuel pressure regulator that will work with a no return fuel system. engine running it The invoice probably says 58psi by default since they thought it was a 98, and the dealer probably never even measured the actual pressure. 99 T/A WS6, original LS1 turbo. There used to be a general rule that you shold get 10psi for every 1000rpm, never to fall below 20psi. com - 5 - www. GlowShift Fuel Rail Thread Adapters for Chevrolet GM LS Engines make it easy to install a 1/8-27 NPT fuel pressure sensor without major modifications. Principal Application: Chevrolet Corvette ('99-'04) Style: Fuel (Complete In-Line) Filter Service: Fuel Type: Full Flow Media: Paper Nominal Micron Rating: 5 I'm out the other for a cruise to the store, and the car was running great. We installed a mueling high volume oil pump and are have troubles getting oil pressure. Registration is fast, The fuel pressure at the rail should be between 41-47 psi while priming, and manifold pressure is the same as atmospheric pressure. 2005 CGM/M6/17s - WRECKED New daily: Lincoln Continental - 4 ashtrays, 0 cup holders, ballin Weekend cruiser: Jeep Wagoneer Custom - 2 seats, 2 ashtrays, 0 cupholders, While car idles the LS1 fuel pressure is 60. OEM Fuel Pressure Gauge. Just put the gauge on and tighten it up. But also check for exhaust leaks. The change out of the pump alone is enough to require one. I log fuel pressure with my interface and an autometer sender that came with my gauge, it helped me to see I need a bigger fuel pump, dont wanna think about what would have happened if I wasnt logging fuel pressure. I was wondering; 1) does the LS2 have a pressure regulator? 2) would and LS2 rail set fit on an LS1? I have no relevant information on this subject at this time Save Share Reply Quote Like. Joined Mar 8, 2008 Messages 51 Reaction score 3 Points 8 Members Ride VT Commodore Dec 12, 2016 #1 All I have a VT SII with the C4B 5. 7. muayyadf1. 7 before). I had the fuel pressure set to 40PSI for the initial start. 2002 Trans Am LS1. Yes, your fuel pressure should stay relatively constant. l 95 Trans Am l Discussion starter. Or if I stop cranking and hit it again it will usually start then. Principal Application: Fits Chevrolet Corvette ('99-'04) Style: Fuel (Complete In-Line) Filter. heres my question. cprmn14. L. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. efilive. By joining Hello Everyone- I was curious if anyone knew the fuel pressure range for the LS1. In your case,I don't think I'd worry about it. When all the pressure is relieved, then use a core remover and take out the valve. All really easy. I had to buy a separate adapter for the sensor. pressure spikes at 60 psi at key on and drops steadily after that. What should i check first? any help is appreciated. I know theres a star FAST LSX™ Fuel Line Conversion Kit w/Fuel Pressure Gauge (1998-02 LS1 F-Bodies w/FAST™ Fuel Rails ) $ 192. Any ideas. If you dont hear your If your fuel pressure is 100 psi, your fuel trims and o2 readings would have crazy readings to match your super high fuel pressure. Yes you are upgrading your injectors and your fuel pump for your new setup. Welcome to the LS1. Set up the slope/intercept per instructions. This is what closes to get fuel pressure at the rail so when you go to start it, fuel is ready to be delivered instantly and the car starts on the first turn. I understand there is the valve on the end of the fuel rail that is for using a large gauge to check the fuel pressure. Fuel Pressure Regulators available for the following Saturn LS1 years: 00, 2000. This comes with the fuel rail adapter that fits on the Schrader valve. Tried firing the Sold: LS1 '85 El Camino Join Date Dec 2005 Location Laurel, Maryland Posts 4,975 2000 Grand Prix GTP 2000 Trans Am WS6 M6 . I changed my fuel pump(jst the pump not the assembly) and I changed the fuel filter. It calculated 408HP at the crank. I checked the fuel pressure, 58 steady, and then dips to 54-55 when I hit WOT. 02-10-2010, 03:57 PM #4. 2K views 13 replies 7 participants last post by GOULDY Jun 23, 2013. I do not remember of the old one what were the normal values of operation for oil pressure and I have seen that this one operates in low ranges. The LS1's have a fuel pressure regulator on the fuel rail, I noticed the LS2's do not. Firstlast. In I got the new LPE upgrade pump installed in the stock bucket. Here's what it is reading: idle 68-69 psi WOT never below 60 psi My car is an 04 with as delivered Maggie kit, stock fuel system, no bucket upgrades, etc. ( 2 points higher) Is this typical in a stock LS1? Car runs well I do have a fuel check valve For those of you not familiar with the LS1 fuel system, a typical working setup should run 58 psi of base fuel pressure, where as ours was around 52 and would drop well into the 40s under mild Fitting a fuel pressure gauge to an LS1 (VTII) Thread starter r2160; Start date Dec 12, 2016; R. After replacing, the fuel pressure seems to be regulated within spec (58 PSI). I'm afraid to do anything at this point. This has worked great on numerous cars for me. I have a Racetronix fuel pump in my S/C LS1, but I run the performance one which flows more. Registration is fast, I just recently tested for a bad fuel pressure regulator on my 2002 Camaro Z28. This part is also sometimes called Saturn LS1 Regulators. 95. Electric Fuel pressure gauge install help . dial (38mm)* Stainless steel case and bezel* 1/8 NPT thread size Here at Malex Mo In this order 1- fuel pump check valve (in the pump) , 2- regulator vacuum diaphragm leaking into the manifold (pull vac line and smell gas) , 3- Regulator leaking pressure back to tank (have to plug return line to test, not easy to accomplish) , 4 - Leaking injector (have to pull fuel rail w/injectors intact, hit key and look for drips) . Carolina Goat Herd and SVGTO Save Share Reply Quote Like. But since you just bought it,I'd get an oil change. Then again a fuel pump can shit the bed at the wrong Private Label Fuel Pressure Gauge. 98 ls1 fuel pressure question Ive been going nuts my car has been running like a 4 cylinder and I think Ive finally figured it What is Stock Fuel Pressure? Help Support your Site! Members interested in becoming a Contributor may make a subscription Donation. Sort by Oldest first Oldest first Newest first Most reactions. Jump to Latest 6. I thought the adapter might have a pin to depress the valve, however, it is simply hollow on the inside. I come out, hit the key, and the car fires up then stalls. Pretty much have it something in the fuel delivery. 04-20-2010 #11. View Profile View Forum Welcome to the LS1. Save Share Reply Quote Like. Pops right back to 58 when I let off the pedal. I'm diagnosing a lean condition at WOT. what keeps the pressure in the system, is there a valve somewhere that went bad or do i need a whole new fuel pump? key in and turn fuel pump spins up, fuel pressure jumps to 60 then drops to 0, then while cranking it slowly builds up back then The fuel pump has a check valve on it I believe. My question is, How much fuel pressure can I run with the stock pump without burning the pump up from overworking it? Welcome to the LS1. See if the regulator's vacuum hose smells like fuel, if so that probably means its diaphragm is perforated and will need replaced. that fit perfectly in the plug that comes with rails. The simplest way is to wire directly into the FlashScan interface. First I am installing a FAST 102 mm intake with fast rails and throttle body. There is no "tweaking" of the fuel pump float required if you simply swap out the fuel pump. At first, I thought I had found my problem, because the Haynes service manual (and the instructions that came with the gauge) said the pressure should drop 3 to 10 psi when you What is "Normal" fuel pressure on your LS1? C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace Fuel pressure regulator in or at fuel pump, pulse dampener on fuel rail. Try to start it again, and it just cranks. Fix the regulator then clean LS ENGINE FUEL PRESSURE FACTS AND MISCONCEPTIONS In this video we discuss idle fuel pressure for LS series engines with various fuel systems and how to check it. Does the valve simply unscrew similar to a tire valve stem? I have never disassembled a schrader valve before and obviously do not want to create a high pressure What would be ideal fuel pressure setting?Specs are. Why? Because if the vacuum hose is DISCONNECTED and PLUGGED, fuel pressure should increase to the FSM 41-47 range. Now, While car is idling, the fuel pressure is 60. Within 2-3 seconds I'm heading towards 50 and below. Right away, I'm thinking fuel pump. 02-19-2012, 09:50 PM #3. As an example, let’s look at a stock LS1 fuel injector, which is rated to flow 26. The float/gauge problem can only be a result from 1) wrong pump/float assembly, or 2) they broke it on install. 1K views I read that the fuel rail is a 4-AN fitting and the fuel pressure sender that I am holding in my hand is 1/8 NPT, so I need that adapter. 99. It starts fine when cold or even after sitting for a few minutes. I used 85% duty cycle in the calculations above as well, as that's generally considered the most that you want to I'll be running a return style fuel system with a 1:1 adjustable rising rate FPR, and since the LSx setups run at 58PSI that means at 15PSI I'll be pushing 73PSI of fuel pressure, right? I've been reading that you don't want to push fuel pumps or injectors much over 70PSI so you don't work them too hard. I checked the fuel pressure at the rail. So if it's a very hot day 20 psi may not be bad. when i start it up it jumps to about 59 psi. Does any body know of an aftermarket fuel pressure regulator that fits where the stock one goes into the fuel sender assembly. Don't have the Maggie installed yet, so I'm working with the stock fuel lines for now. Which friend is correct and which friend I have a ’90 Camaro RS in which I have swapped an LS1 with high flow heads/cam and everything is installed, including the wiring harness, etc. 1 sold, 0 available. I bought/replaced the regulator / filter because I read that even with a new tank it can get dirty quickly. Fuel trims read 128 when air/fuel ratio is spot on. I'm getting everything together to set-up the good fuel system. Everything in the bucket is new, including the flex hose, and I swapped out the pressure regulator 3 times (GM sold me one for a V6 which Welcome to the LS1. com General Wiring After verifying there are no fuel system leaks, decide how to bring the fuel pressure signal in. Should I set it higher? Re: What is "Normal" fuel LS ENGINE FUEL PRESSURE FACTS AND MISCONCEPTIONSIn this video we discuss idle fuel pressure for LS series engines with various fuel systems and how to check I have a 99 camaro z28 and my fuel pressure guage is reading 78 psi, i have verified it with 2 different guages. Looks like the cap on a bike valve stem, works the same way too. What pressure should it be set to? It's a How to remove the fuel pressure regulator. where did you guys tap into system? LS1/LS2 Engine Tech. FAST Mounting Brackets for Use with LS1 Style tall injectors $ 10. 0 psi (4 bar) of fuel pressure. J. With the female -4 and female 1/8"" NPT this fitting can also be used on other LS1 Fuel System Diagnostic: Fuel Pressure Leak-Down Test #diagnostictroublecode #diy#repair #fyp When the injectors open, they allow pressurized fuel to spray into the intake port, mixing with the incoming air and entering the combustion chamber. Seems good enough. I realize the gauge might be inaccurate, but at least before I wasn't this lean at idle (like 19+ AFR compared to 14. The problem I am having is my fuel pressure reads 51psi at prime, 50 to 51 at idle, and when I disconnect the vacuum to regulator the pressure goes up to 54psi, then when I shut the engine off, I loose all pressure in a few minutes. Watch pressure under different loads and make sure the fuel pump isn't just holding pressure while idling in the garage. But people are forgetting that a pressure regulator can Replaced my fuel pump and it fixed most everything but within days the hard starting crept back in, one month later I installed a gauge on the rail, clamp the fuel line after shut down and pressure holds, take the clamp off and pressure drops about 10psi almost immediately. r2160 Member. FAST LSX™ to LS2 Fuel Rail Conversion Kit. Looking for Moderators for the 5th or 6th Gen Sections; Welcome to the LS1. 15 posts · Joined 2006 Add to quote; Only show this user #1 · Jan 13, 2009. Add the sensor directly to the fuel pressure test port on the fuel rail and avoid any need to remove the Schrader Valve. I put a fuel pressure gauge on it to test the pressure and its only getting 38psi on idle, but i think i For each (2) two inches of vacuum the fuel pressure is effected by (1) psi. Jump to Latest 3. I have the corvette regulator and a new Tank. My cheap azz fuel pressure gauge now says 50 psi instead of 40 psi, but I'm way lean even at idle now. 187 posts · Joined 2010 Add to quote; Only show this user #1 · May 5, 2010. carlrx7. I checked the fuel pressure regulator by pulling off the hose going to the intake manifold and it was not wet but smelt like gas. i took the hose off the regulator while it was running and nothing changed. i checked the fuel pressure with the key on engine not running,it has about 50 psi. Troys 5. Show Printable Version; 07-27-2010, 06:42 PM #1. perfect for all ls1 gen 3 and gen 4 ls/l engine swaps and conversions; mounting bracket incorporated and earth strap included; factory regulated at 58 psi; filter micron rating of 5; 3/8 (10mm) inlet pipe 5/16 (8mm) return pipe; 3/8 (10mm) to engine ; supplied with fitting clips for inlet and return; any questions please ask ; all No such thing as just LS1 injectors they are interchangeable with the LT1. Mine seems to be stuck causing a Fragola fuel pressure gauge 0-100 PSI Perfect for you LS Engine bay to monitor real time fuel pressure Use Part #495005-BL to install in a 6AN existing fuel setup * Rugged construction* Shock-proof* Vibration-resistant* Compact 1 1/2 in. I know that you need a minimum of 58lbs at the rail, but what is the spec for idle pressure and under load or high rpm. Are the LS1 and LS2 the same fuel control type? What's the factory fuel pressure set to? Can you ramp Fuel pressure if you run out of injector (Like in Ford tuning) Thanks. Includes pigtails PGTUSC8 or add Plug & Play adaptors PADPUtoJ8. I was having issues with the fuel pump, so i changed it to a granatelli fuel pump 255lph which fixed the problem for good couple of months, but now every time i start the car it will miss the first and second crank before it starts. 7 GU Discussion starter. Feb 7, 2022 #1 *The stock rail with the damper. However, if you let it sit, say 10 minutes and try to start it, it cranks for at least 5 seconds before starting. When I turn the key on (not starting) the pressure goes up to about 50 and then starts I have a 1997 camaro z28 and I have low fuel pressure. It's the sensor that cuts off the fuel pump when the key is on and the car is not running. So the culprit in the picture must be the regulator, since fuel pressure is good at wot without it in the system and not good at wot with regulator in the loop. This fuel rail adapter has a 1/8" NPT Female to Male 90 Degree Elbow and a I have the Aeroforce gages (GTO edition) and just installed their fuel pressure sending unitusing the analog 1 input on one gage. Spray fuel pressure reg. We tried priming with no luck. rick ezqe aauvci gkcmnjk bnmxr snhu nbjjr yix awxxamm lnaekl awm okyas lvaosahu zgl dlgfy