kevin, i read what you said, and you have no clue. i went 15.0's @ 89.9mph with free mods, open element, and full exhaust. the car also weighed nearly 3600lbs then because it had a full road racing suspension on it. not you swapped an entire intake system to pick up 1 tenth? i don't see how that is worth it.
how many days did it take you to do the swap too? it takes a few hours to do all of the free/cheap mods on tbi for the same gain.
port injection is the path to ultimate power, i know that. but do not bag on tbi just because you didn't bother to try or learn with it.
james, if you wanna get more info on tbi i woudl suggest you hit off www.thirdgen.org and check out the tech articles and the tbi board.

later
tim


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NJ SPEEDER
91 Camaro RS
305TBI/700R4
12's Coming Soon
2nd Annual East Coast F-Body Nationals
July 20,2002
www.geocities.com/njspeeder
My MAFB.ORG Home Page
http://www.mycar.net/mafb/registry/detail.cfm?id=299

 

Thanks Tim, thirdgen.org is where I got the idea The information is there, I was just fishing for tips. I know a few of you have worked hard to pioneer this project



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James D Montigny
1992 Pontiac Firebird 5.0
Bone Stock Officer, I Swear !

The members of this board are enthusiasts, not experts.
Please consider everything that you read an opinion.

 

Going on what Tim said about the TBI not having the volume stock, check out this picture:

http://homepages.udayton.edu/~kulcha...ifoldsback.jpg

The two manifolds are the same height (sans the tbi adaptor), but look how much more volume the the Edelbrock can handle.

------------------
Chuck Kulchar
1991 Camaro RS LO3 A4
15.823 @ 85.84 MPH
Project sLO3: the lil big project

 

Hey, take another look. He picked up a full second. Went from 14.9 all the way down to 13.9. Thats 1 second, attributeable to the added area under the Torque curve, as we all know, horsepower is simply a coefficient calculated from torque... and doesn't mean as much as everyone makes it out to.

 

If you want to see what just swaping tbi for tpi will do power wise check the link below. I have my dyno runs b4 and after.

http://bitchincamaro.no-ip.com/dyno.html

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http://bitchincamaro.no-ip.com 91 RS Camaro 5-speed black w/t-tops 305 TBI now TPI
MODS: SLP cold air intake w/K&N, air foil,Accel 19 LB injectors, March aluminum under drive pullies, Alburn pro posi, Aluminum drive shaft, Random Technology 3'' cat-back, 8.5mm MSD wires, 160 thermo, jet fan swich, Custom chip with 91 vette computer, SSBC slotted rotors, optima battery in the rear, BMR adjustable lower control arms and panhard rod, Kenny Brown strut tower brace, TB bypass, no egr, no air

 

he didn't pick up a whole second until he swapped in teh 350. i was looking at teh 305 numbers that he claims to have gained that he thinks prove that tbi isn't capable. he swapped an entire induction system to make a slightly larger gain that i made with an air cleaner, a dremel tool, and a timing light. my $15 investment took my car from 15.95 to 15.06 and picked up 5full mph.
i know tpi is a very good system and very well developed thanks to all theuys who have it and the aftermarket, but just because tpi is developed very well does not mean that another induction system is not worth it. tbi is perfectly capable of making power and it is usually cheaper to work on.

later
tim

------------------
NJ SPEEDER
91 Camaro RS
305TBI/700R4
12's Coming Soon
2nd Annual East Coast F-Body Nationals
July 20,2002
www.geocities.com/njspeeder
My MAFB.ORG Home Page
http://www.mycar.net/mafb/registry/detail.cfm?id=299

 

Thanks for the dyno, gives me an idea where I should be right now and what TPI swap may give me. But I am confused....

In the first graph the car is making 228HP
In the second it is making 161 HP

Are these two different cars? The second being the one with before/after TPI conversion?



------------------
James D Montigny
1992 Pontiac Firebird 5.0
Bone Stock Officer, I Swear !

The members of this board are enthusiasts, not experts.
Please consider everything that you read an opinion.

 

Look agian you got the hp and torque number mixed.
152rwhp with tbi 161rwhp with tpi
228rwtq with tbi 267rwtq with tpi

 

Dang, you'd think with size 13 shoes I'd learn to stop putting them in my mouth!

You are absolutely correct, sorry

Someday I will convince the world that those unequal scaled Dynoes should be put to death.


------------------
James D Montigny
1992 Pontiac Firebird 305 TBI
Bone Stock Officer, I Swear !

The members of this board are enthusiasts, not experts.
Please consider everything that you read an opinion.

[This message has been edited by James Montigny (edited August 11, 2002).]