fuel pressure and timing
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Junior Member
Joined: Jul 2001
Posts: 5
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From: pa
fuel pressure and timing
OK i have a 91 B4C with a 350 tpi in it and auto tranny what kinda of fuel pressure should i be running and what should i set my timing at? here is a list of mods i have done so far. air foil, jet chip, home made ram air, tranny is built, sub frame connectors, adjustable fuel regulator and march underdrive pulleys. the car so far has ran a best time of 14.012@ 97.11 mph I am taking it again to run it before the track closes this year so i want to have it tuned and ready to go. by the way it has 118,000miles on it and runs like it is brand new and even looks like it is. here is a link to my webpage go and take a look at it http://communities.msn.com/TITOSCamaroPage
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1 badass 91 b4c camaro with a 350tpi and auto this thing runs a 14.012 @97.11mph. pulleys, adjustable fuel regulator, air foil, built *** tranny, k&n's, chip, vortex exhuast and more mods to come.
Tito
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1 badass 91 b4c camaro with a 350tpi and auto this thing runs a 14.012 @97.11mph. pulleys, adjustable fuel regulator, air foil, built *** tranny, k&n's, chip, vortex exhuast and more mods to come.
Tito
Senior Member
Joined: Aug 1999
Posts: 618
Likes: 0
From: Central, NJ
Car: 1989 IROC-Z
Engine: 350 Vortech Supercharged ZZ4 TPI
Transmission: T56
Axle/Gears: 3.73
48-50psi for racing...
it varies from car to car, regardless of whether you have identical engines and mods or not.
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1989 Chevrolet Camaro IROC-Z
L98 - 350c.i. TPI, rebuilt 700R4 auto w/shift kit, Dual catalyst Monza PaceSetter Cat-Back, SLP 1 5/8 Coated Headers, 3.23 Posi rear, Hypertech chip with 160stat, MSD 6A, Under-Drive pulleys, AFPR, K&N's, !Air Box w/ Ram Air, moddified MAF, !TB Coolant, Spohn Dual Cat SubFrame Connectors, Alarm, Keyless entry, remote starter, 92 Z28 AeroWing, Brand New Paint (6/21/01)
Future: ZZ4 TPI w/EGR, T56, 3.42 or 3.73, Spohn strut tower brace and LCA's, Accell 24# injectors
1989 Chevrolet Celebrity Eurosport <--DEAD AS OF 9/20/01
2.8 MPFI, no mods
225,000 miles and still ticking!
More info and pics on my webpage:http://go.to/iroc-z
AOL IMer: GPA 0point0
it varies from car to car, regardless of whether you have identical engines and mods or not.
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1989 Chevrolet Camaro IROC-Z
L98 - 350c.i. TPI, rebuilt 700R4 auto w/shift kit, Dual catalyst Monza PaceSetter Cat-Back, SLP 1 5/8 Coated Headers, 3.23 Posi rear, Hypertech chip with 160stat, MSD 6A, Under-Drive pulleys, AFPR, K&N's, !Air Box w/ Ram Air, moddified MAF, !TB Coolant, Spohn Dual Cat SubFrame Connectors, Alarm, Keyless entry, remote starter, 92 Z28 AeroWing, Brand New Paint (6/21/01)
Future: ZZ4 TPI w/EGR, T56, 3.42 or 3.73, Spohn strut tower brace and LCA's, Accell 24# injectors
1989 Chevrolet Celebrity Eurosport <--DEAD AS OF 9/20/01
2.8 MPFI, no mods
225,000 miles and still ticking!
More info and pics on my webpage:http://go.to/iroc-z
AOL IMer: GPA 0point0
Supreme Member
Joined: Sep 1999
Posts: 3,197
Likes: 10
From: Manassas VA
Car: 04 GTO
Engine: LS1
Transmission: M12 T56
Look, do you have time to get in 5-6 runs?
If so, you have time to:
1- run stock FP, timing
2- +2 psi, observe
3- if faster +2 more, if slower, -4 (now -2 from stock), observe
4-if significantly gaining continue w/ the FP until it slows down or levels off. If gain is less then maybe go +2 degrees timing
5- i hope you're getting the picture, and at this point you've probably rung 98% of what you're gonna get. If you don't have time to get a 6th run you're still prolly as good as you practically get
This assumes a good consistent driver and everything is in proper running condition.
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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-
- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die
If so, you have time to:
1- run stock FP, timing
2- +2 psi, observe
3- if faster +2 more, if slower, -4 (now -2 from stock), observe
4-if significantly gaining continue w/ the FP until it slows down or levels off. If gain is less then maybe go +2 degrees timing
5- i hope you're getting the picture, and at this point you've probably rung 98% of what you're gonna get. If you don't have time to get a 6th run you're still prolly as good as you practically get
This assumes a good consistent driver and everything is in proper running condition.
------------------
Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-
- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die
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