TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Old Nov 12, 2001 | 09:19 PM
  #1  
5.7lformula's Avatar
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I know i know......

Im sure you are all tired of hearing the question asked of What should I do. Well im not going to lie, this is another. I have whats in my sig. What should be the First few things i should do? Please include approx. prices and best parts. Thank you in advance.

Jesse

1992 Firebird Formula. 350 TPI Stock except for K&N, Plugs and Wires and some mystery muffler. 14.2 @ 96.x MPH

[This message has been edited by 5.7lformula (edited November 12, 2001).]
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Old Nov 12, 2001 | 09:53 PM
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Thanks to the MODS for doing a good job.

[This message has been edited by 5.7lformula (edited November 13, 2001).]
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Old Nov 12, 2001 | 10:04 PM
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From: Erlanger, KY
Car: 1989 Iroc-z
Engine: 350 TPI
Transmission: Auto 700R4
Axle/Gears: 9 bolt - 2.77
Whats the problem you are having. You didnt give any info for what you are wanting to do.

------------------
1989 iroc-z 350 TPI, auto trans, leather int. t-tops, edelbrock headers and cat back system, SLP cam, crane double roller chain, 4 wheel disc, and aftermarket hood. Iroc-z's forever, Ford Mustangs NEVER
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Old Nov 13, 2001 | 12:37 AM
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From: Cincinnati,Ohio
Car: 1991 BandittII Firebird
Engine: 5.7 HSR
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
(pointless reply removed)


[This message has been edited by Ed Maher (edited November 13, 2001).]
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Old Nov 13, 2001 | 02:16 PM
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92 Formula's Avatar
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From: Avatar: My 34' 1989 Scarab III w/ twin 454's (502's Started!)
Car: 1989 Wellcraft Scarab III
Engine: Twin 454's
Axle/Gears: Twin Mercruiser Bravo I's
5.7lformula,

Are you trying to get recommendations to mod your car for more speed? If so, what are you hoping to gain. I think we could help a little more if you let us know that.

------------------
1992 Pontiac Firebird Formula (original 305 TBI) The project has begun:
just purchased 1986 Corvette 350 TPI, Summit SLP 1 3/4" Headers, Dual Catco Cats, Flowmaster American Thunder 3" Exhaust, Dual fan setup, OEM Posi, GM 3.42 gears and JEGS Ultimate Support Cover for 7.5 rear.

1997 Chevrolet Camaro SS # 379 (1 of 371 Black, T-Top, 6-speed)
1973 Chevrolet Camaro RS/Z28
1969 Chevrolet Camaro SS 350

RIP Dale Earnhardt.
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Old Nov 13, 2001 | 04:41 PM
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From: Bedford, Tx
ok, first off, thanks Ed for removing the crap that stupid people thing is either humorous or makes them look "cool" to post. i appreciate what you moderators do here. (most of yall anyways)


second.

5.7L

I would recomend going with some new headers, and probably a cat back. headers will cost anywhere from $200-700, SLP being some of the best. second (or actualy do this one first) i would do away the with stock intake if u haven't already, make urself ur own cold air intake. then maybe start working on modding ur TPI system, runners, plenum, base, and heads. and a matched cam would help you alot too. Also a Adjustable Fuel Pressure Regulator would be a good mod soon. I probably forgot some stuff.

------------------
- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series Muffler added to Unkown CatBack, Ported Intake

http://www.geocities.com/david_angel_16
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Old Nov 13, 2001 | 09:31 PM
  #7  
5.7lformula's Avatar
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Thanks to the MODS for removing that.

I am wanting to mod for speed. I enjoy 1/4mile as well as auto cross. I basicly know (for the most part) what suspension work im going to do. The budget that i set (which isnt permenint:-) is $400 for headers (which i am led to believe comes with the Y-Pipe) I would like to stay under or at $400 as well for the catback. Does the Air Foil help that much? From what i have read it seems like it would and is not that much. (Moneywise that is) Is there any website that has a how-to for the cold air mod? I would eventualy like to get the ram air hood for the 3rdgen. I really like to looks of it. Is there a shift kit or something like that to firm up the shifts a bit? It seems kinda sluggish when it shifts. A friend of mine said to swap the thermostat out with a *160 and get a tourqe converter. He suggested one out of a vette. which aftermarket intake parts are the best for the money? I have seem some of the prices and wasnt sure if it was worth it or not. should i get aftermarket fuel injectors to go with the FPR?? As well as a aftermarket fuel pump or filter? Do you recomend any certian gauges that would be nice to have to keep track of everything?

As you can tell im NEW to all of this. I formerley owned a Import so bare with me. I obviously wised up and got a 3rdGen. :-)


Thanks so much, Jesse

------------------
1992 Firebird Formula. 350 TPI Stock except for K&N, Plugs and Wires and some mystery muffler. 14.2 @ 96.x MPH
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Old Nov 13, 2001 | 09:56 PM
  #8  
Ed Maher's Avatar
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From: Manassas VA
Car: 04 GTO
Engine: LS1
Transmission: M12 T56
<font face="Verdana, Arial" size="2">Originally posted by 5.7lformula:
I am wanting to mod for speed. I enjoy 1/4mile as well as auto cross. I basicly know (for the most part) what suspension work im going to do. The budget that i set (which isnt permenint:-)

It never is, lol

is $400 for headers (which i am led to believe comes with the Y-Pipe) I would like to stay under or at $400 as well for the catback.

Well, for headers, the SLPs can't be beat. They're the best emmisions legal design you can get. These will run you a little more than 400, but not only are they the best design, they're also stainless so they won't rot out on you. There are plenty of nice cat backs for under 400. I like the flowmaster set-up myself. For the dual cat cars (like yours and mine) it has an improved Y design for after the cats that has to be worth power vs. the stock set-up ( 2.5" out of the cats, into a TRUE 3" Y, vs. the stock 2.25" outlets into a poorly shaped near T.)

Does the Air Foil help that much? From what i have read it seems like it would and is not that much. (Moneywise that is)

Well, it's not really worth any performance in practice, but it's something to have if you're bored. The SL piece is the only one worth buying since it's by far the cheapest ($25), why pay twice that for an unmeasureable gain. Or you can make one yourself with epoxy putty

Is there any website that has a how-to for the cold air mod? I would eventualy like to get the ram air hood for the 3rdgen.

You can do a search for these topics, it's been covered a million times really on solutions to the factory air box w/ firebirds.

Is there a shift kit or something like that to firm up the shifts a bit? It seems kinda sluggish when it shifts. ...and get a tourqe converter. He suggested one out of a vette.

This is more a topic for the tranny board, again, just reading/searching there will give you plenty about this. The vette TC is the best low buck option for a converter really, that or the one from an S10.

A friend of mine said to swap the thermostat out with a *160

160 is really too low to be useful, especially if you don't change the fan on temps in the PROM. 180 works well, they're nothing to be gained by goig lower.

which aftermarket intake parts are the best for the money? I have seem some of the prices and wasnt sure if it was worth it or not. should i get aftermarket fuel injectors to go with the FPR?? As well as a aftermarket fuel pump or filter? Do you recomend any certian gauges that would be nice to have to keep track of everything?

As you can tell im NEW to all of this. I formerley owned a Import so bare with me. I obviously wised up and got a 3rdGen. :-)


Well i'm just going to dodge the specifics of this to give you a piece of sound advice. Just start reading and doing searches on the stuff you're interested in. Really get to know how everything works together, and use other people's experiences to figure out the best way to get the performance you want. I mean, it's one thing for me to recomend SLP headers, it's pretty clear that they are universally necessary and good. When it comes to diving into the intake and tuning there are a lot of things to consider. There are plenty of ways to get any level of performance, the fun of it is doing it your way, and IMHO, with the least amount of $$$ and work.

A last piece of advice. If you plan on ever getting serious and making a lot of power you should get into PROM burning early. Being able to tune it in the chip will give you more performace at every step of the game (even stock), and also gives you a deeper understanding of what is going on. If you start early, the learning curve is very slow because you can start out tweaking little things to see what happenes before you NEED to make big changes.
</font>


------------------
Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.7 @ 93.6
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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Old Nov 13, 2001 | 10:19 PM
  #9  
5.7lformula's Avatar
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Thank you. I have been (and still am :-) reading all the different topics. I personally like SLP products. Which will hurt my wallet :-) But oh well LOL


Thanks again.

Jesse

------------------
1992 Firebird Formula. 350 TPI Stock except for K&N, Plugs and Wires and some mystery muffler. 14.2 @ 96.x MPH
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Old Nov 13, 2001 | 10:21 PM
  #10  
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From: East Tn
I have got to agree with Ed on this one the firts thing I would do read as meny of the posts and tech articals on here as you can. Second the first mod I would do is get in to prom berning know why your car is fairly stock if you make a mistake you will always have the stock chip to put back in> I wsh I would have got in to ot sooner it would have saved me a lot of money and fustraion this will coast you around 500 to get started in read traxton's tech artical on this.After that I would buy the boltons that will work with any combo like the cat back headers , ignition, and suspention work that will give you time look at all your opptions and decide how much power you want and where you want your car to produce that power.this will be where you spend the money so you want to pick head cam and an intake that work well together you dont need a minie ram if you ar not going to go over 5000 rpms you can do this with the long tube runner set up and posibly save some cash.You may even decide that you dont want to go that far in to the engine and buy a super charger. I geuss what im saying is the sky is the limit with these cars and you rilly need to decide what you want and how much you want to spend.
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