Corvette filter regulator for boost - LS1TECH - Camaro and Firebird Forum Discussion

Forced Induction Superchargers | Turbochargers | Intercoolers

Corvette filter regulator for boost

Thread Tools Search this Thread
Old 10-19-2016, 07:00 AM   #1
Staging Lane
Thread Starter
iTrader: (4)
Join Date: Dec 2007
Location: Columbus, Ohio
Posts: 75
Default Corvette filter regulator for boost

Hey there-

Is there any reason why I can't use the corvette fuel filter regulator setup on my boosted LQ4?

Do I have to have a boost referenced setup or is 60ish psi sufficient?

hpfiend is offline   Reply With Quote
Old 10-19-2016, 07:32 AM   #2
TECH Fanatic
iTrader: (11)
1bdbrd's Avatar
Join Date: Jan 2004
Posts: 1,679

I would say that would depend on your horsepower goals, your pump size(s) and your injector size. I'm going to go with it probably won't be enough but that all depends.
1bdbrd is offline   Reply With Quote
Old 10-19-2016, 07:51 AM   #3
TECH Enthusiast
iTrader: (2)
Join Date: Sep 2010
Location: Abilene TX
Posts: 599

Ive run one for about five years now. With a Bosch 044 inline, C5 z06 and 60lb injectors regulator it made 740/810 with 1000cc of water/methanol spraying.

The main downfall of the setup is since it is not boost referenced, the more boost your run the smaller the injectors act. My injectors are 60lb at 43psi fuel pressure, so at the 58psi the regulator shows at no boost the injectors act like 72lb'ers. By the time you are at 15psi boost, the fuel pressure is back down to 43psi at the injector, so the injector is back to about 60lbs.

I once ran a rising rate regulator and return with the bosch 044 thinking it would stretch a little further and it didn't. If I had a bigger pump it would have for sure though.

Moral of the story, if your injectors are big enough, and you tune for it, it works great. For given injector size and big fuel pump, a rising rate regulator will make a lot more power.
Hank Peabody is offline   Reply With Quote
Old 10-19-2016, 08:18 AM   #4
iTrader: (1)
Join Date: May 2011
Posts: 273

I'd ask your tuner, one guy I asked said "it would work", another wouldn't even touch my car until I had a boost referenced fpr. For a few bucks more I put one on...
80/TA/LT1 is offline   Reply With Quote
Old 10-19-2016, 09:27 AM   #5
TECH Addict
iTrader: (20)
truckdoug's Avatar
Join Date: Nov 2013
Location: Portlandia
Posts: 2,643

i had the problem where it wouldnt regulate my FP to 58 psi....more like 80psi with a walbro 450

it made tuning very difficult.

it was the kit speedway sells so I'm chalking it up to a shitty regulator. anyone want it cheap?

I went back to the stock truck feed/return rail regulated set up and its nice. still have to compensate for boost dropping the pressure across the injector though

would like upgrade to a boost ref'd regulator soon
truckdoug is offline   Reply With Quote
Old 10-19-2016, 09:30 AM   #6
TECH Apprentice
iTrader: (2)
Join Date: Jan 2007
Posts: 345

big injectors don't like to idle. adjusting the fuel pressure on them to make them act smaller at idle and larger at WOT make tuning them much easier/practical.

If you're only going to boost a few lbs- I wouldn't worry about it. Anything over ~10psi or so I would. At this pressure and power level it's going to be much easier to tune the car. It will run on smaller injectors and idle more consistent.

This is just my rule of thumb though- and I'm sure there is guys out there that run more with constant pressure.
cajundragger is offline   Reply With Quote
Old 10-19-2016, 01:33 PM   #7
Staging Lane
Thread Starter
iTrader: (4)
Join Date: Dec 2007
Location: Columbus, Ohio
Posts: 75

Thanks all- I was planning on using my Bosch 044 and some 80lb Siemens injectors - maybe I should look for some 60s for idle issues as apparently I won't run out of injector until beyond 750 who... I only plan 6-650.
hpfiend is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
truck fuel rails w/ corvette regulator C for Chevelle Conversions & Hybrids 18 10-23-2017 11:45 AM
Boost referenced FPR 70c10 Forced Induction 14 06-20-2017 06:07 PM
Please help me understand injector sizing and regulators hpfiend Fueling & Injection 6 10-25-2016 09:45 AM
estimated hp limit of my fuel system setup.. any ideas brad442 Fueling & Injection 1 03-10-2016 10:40 AM
Fuel Regulator question - Fuel system build for LS1 dunce79 Fueling & Injection 0 01-19-2016 04:28 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 04:32 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: