fuel problem on a 383
Thread Starter
Intermediate
Joined: Sep 2003
Posts: 27
Likes: 0
From: Glendale Hts IL
fuel problem on a 383
Anyone have a 383 what kind of injectors are you running i had 24# accel and it ran good. I just received a D1 supercharger so i went to 36# injectors and the car has flat spot now. I ordered a high flow fuel pump i need to install over the weekend. I wonder if the ati inline fuel pump will fix the problem with the new injectors. I currently am running only the stock fuel pump. I was told the stock pump does 80lph which is in the tank. The new intank high volume pump only does 140lph. Should i still install the inline pump that comes with the D1. should the flat spot be gone before i install the D1
Safety Car
Joined: May 2003
Posts: 4,283
Likes: 0
From: Houston Texas
Re: fuel problem on a 383 (87provette)
I bought the Racetronix in-tank system which is 255lph. Hell of a setup. Also am going with 42lb injectors on advice from those who have far more knowledge than I. I am putting together 383 with 10psi Vortech. You probably, if you haven't allready, reprogram your computer. Just reread your post. 36lb's are too big for a NA 383 and are probably part of your problem.
Thread Starter
Intermediate
Joined: Sep 2003
Posts: 27
Likes: 0
From: Glendale Hts IL
Re: fuel problem on a 383 (BAM92)
i have a hypertech chip stage II thermo master do i need a different chip maybe i put a gage on the fuel pressure it stays at 40psi
i tryed to get your fuel pump but they said it would not go in my tank so i bought a weired brand punp that will double stock. i plan to use it with the inline ati one.
i hope it is a fuel problem not a chip problem
i tryed to get your fuel pump but they said it would not go in my tank so i bought a weired brand punp that will double stock. i plan to use it with the inline ati one.
i hope it is a fuel problem not a chip problem
Thread Starter
Intermediate
Joined: Sep 2003
Posts: 27
Likes: 0
From: Glendale Hts IL
Re: fuel problem on a 383 (krivera)
my new pump is a walbro intank i will install over the weekend i hope it will fixes the problem. i got it from http://www.dougrippie.com
Safety Car
Joined: May 2003
Posts: 4,283
Likes: 0
From: Houston Texas
Re: fuel problem on a 383 (87provette)
I am still guessing you will have to reprogram as you are going beyond parameters of stock and probably hypertechs programming. Ski Down It uses 24lbs in his 383 and it works great but he also burns chips and can burn one for you.
Melting Slicks
Joined: Mar 1999
Posts: 2,535
Likes: 2
From: Rochester NY
Re: fuel problem on a 383 (krivera)
1) get rid of the hyper crap chip, get a custom tunning for your blown motor. It is very important that you it tune with the proper fuel curves.
2) you need at least 42s or 50s injector. Dump that FMU.
Bruce
383LT1 Supercharged
[Modified by Bruce, 11:15 PM 10/3/2003]
2) you need at least 42s or 50s injector. Dump that FMU.
Bruce
383LT1 Supercharged
[Modified by Bruce, 11:15 PM 10/3/2003]
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