I think the editors own thirdgens and are secret members on the board. There is a badass RS on the front and a big tech article on the importance of setting the TPS! I dunno..I thought it was pretty cool..they say the TPI is one of the finest engines ever made too..

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-Red '88 IROC 5 Speed TPI
-Dual Friction Centerforce Clutch
-Accel 300+ Racing Ignition
-Accel 300+ Pro Sleeve Plug Wires
-Accel U-Grove Plugs
-Flowmaster Force II 3 Chamber Cat Back Exhaust
-Hypertech Chip
-Hypertech Airfoil
-Removed MAF Screens
-Gutted Air Box
-Best E/T 14.90, 60 ft. 2.17, 1/8th mile 9.61(bald tires, SES light on)
-Best MPH 92.7(bald tires)

That engine compartment in the TPS article looks vaguely familiar.........

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FORMULA 350 TK
Southern California 3rd Generation F-Body OrganizationŠ

GEE.........Wonder why Tom? By the way how did you make that wiring harness for setting the IAC?

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1989 GTA TRANS AM
305 TPI, 5 SPD
SWAPPING TO TPI 350 NEXT MONTH.

hellyea! You are my hero! Were the Hot Rod people as cool as all the others? Sorry if I am the only person on the board that didnt know your car is famous..heh..what was the deal with one 305 head? I read like all of your web page..

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-Red '88 IROC 5 Speed TPI
-Dual Friction Centerforce Clutch
-Accel 300+ Racing Ignition
-Accel 300+ Pro Sleeve Plug Wires
-Accel U-Grove Plugs
-Flowmaster Force II 3 Chamber Cat Back Exhaust
-Hypertech Chip
-Hypertech Airfoil
-Removed MAF Screens
-Gutted Air Box
-Best E/T 14.90, 60 ft. 2.17, 1/8th mile 9.61(bald tires, SES light on)
-Best MPH 92.7(bald tires)

Tom that's what 5 mags you've been in now? Looks like they can't get enough.

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My car is the perfect women. She's braless, won't talk back and loves a good beating.
My 1989 Camaro RS L03 w/ WC T-5 My 1989 Camaro RS's 2nd Page
http://350.StreetRacing.org
ICQ: 61342629 AOL IM: BlackSunshineZ28

Hey I had a question about that article/procedure...

Why should the idle air be set? AFAIK, that's one adjustment that can't fall out of whack. I also thought that had no effect on the TPS setting.

Also, when I adjusted my TPS way back when, the highest I could get it to read at WOT was 4.28 volts. And that was adjusting the TPS for the max-allowable voltage at idle. My GM book says WOT is realized at 4.5 volts- does this mean my computer never goes into WOT?

Thanks!


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards

TomP: That article applies specifically to V-8 engines with TPI.

Sorry, I don't know anything about tune up procedures for a V-6.

GTARob: I got a set of Weatherpak connectors, and spliced them together using non insulated butt connectors, and spaced them out so that they would not touch each other if the harness is layed down. Once the harness is connected, you hook up your multi-meter to the butt connectors.

Yarnboy: yes, for all the times I have dealt with magazine guys, they all seem very cool. They are gearheads like us, so it's easy to relate to them. They just have BS to put up with like deadlines, manufacturer egos, etc.

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FORMULA 350 TK
Southern California 3rd Generation F-Body OrganizationŠ

[This message has been edited by Tom Keliher (edited October 02, 2000).]

TomK, the same procedure applies for both v8 TPI and v6 MPFI. When I adjusted my TPS, I saw no reason to adjust the idle speed, altho my GM book says to do it, and now your article says the same thing. Just wondering why

[edit] Thought I'd add- same sensor, same jumper wires need to be made, same voltage needs to be seen. Bet ya didn't know you were helping out the v6 crowd, too!

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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards

[This message has been edited by TomP (edited October 02, 2000).]

TomP, that's good to know!

BTW, the TPS sensor is not the same part for V-8 and V-6 applications. They have different part numbers, and I'm pretty sure different resistance values. I once tried a V-6 TPS switch on my old 305 V-8 Trans Am, and it would not work, set up a code.

Edit: OK, not sure now. I just looked in my illustrated parts manual, and it shows different part numbers for '85-'89 and the '90-'91. Same deal with the IAC motor. But it does not specify V-6 or V-8. I have another book that lists part numbers only, I will see if I can decipher it, but that book is a bitch to figure out.
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FORMULA 350 TK
Southern California 3rd Generation F-Body OrganizationŠ

[This message has been edited by Tom Keliher (edited October 02, 2000).]

Tom K you are my Third Gen hero, i saw your Bird in june 00 car craft, and i think it is one of if not the best third gen ive ever seen. were did you get your wheels

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when the green flag drops the bull$hit stops

350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast

Tom Keliher, I have a couple of questions.
My 86 LG4 Trans Am runs a 14.94@91.67.
A lot of people in our local club says that is a great ET for that engine. What are your impressions?
Here is my time slip http://www.leannrimes.cz28.com/slips.htm

By adding new heads, headers, a cut out, and a K&N Air filter, would I be easily in the 13's?

you have a very beautiful Formula, very sleek and sexy.

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Zepher
'86 Pontiac Trans Am WS6, 5 Speed:
Edelbrock 1406 Carb, Edelbrock Performer RPM 7101 Intake Manifold.
Edelbrock Open Element Air Cleaner: Flowmaster Exhaust, 160* Thermostat,
Grant GT Steering Wheel, MSD HEI Coil, Taylor 8mm Wires, Recaro Seats,
Alpine CD+Changer,Rockford & Soundstream Amps, Premier TS-1040C Subs, Polk Audio highs/mids.

WS6 Trans Am

Borderline NON-TECH!

NICE CARS TK

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84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

91 Firebird 5.0L TBI

ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!

CamaroMike: you are right, it's getting borderline non tech.......

Gold85: Thanks for the compliment. The wheels were purchased from Andris Skulte's "SPD" business: www.spd.com

Zepher: from looking at your mods list, good heads and headers will help alot. "Easily" into the 13's? Well, from my experience each 1/10th reduction is hard earned. I think heads will get you very close if not into the 13's but I also think you will need a hotter cam to propel you deep into the 13's.

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FORMULA 350 TK
Southern California 3rd Generation F-Body OrganizationŠ

Andris Skulte's SPD business is at http://www.skulte.com/

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

Okay, here's the back to tech part-

Why should the idle rpm be set before the TPS is set?

Does anyone's TPS really read 5.0volts at WOT? I could only get mine to 4.28.

Thanks!


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards

TomP: Setting minimum air (idle speed) moves the TPS. So, you must check it and reset it if necessary after adjusting minimum air setting (idle speed).

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FORMULA 350 TK
Southern California 3rd Generation F-Body OrganizationŠ

Ah, cool, that makes sense. Thanks Tom!


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards

Mine goes to 4.33v at WOT, and at least on my ECM, anything over 4.00v is considered WOT.