TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Stock TBI on L03 setup

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Old 07-10-2003, 08:55 PM
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Car: 89 Camaro RS
Engine: L03
Transmission: 700r4
Stock TBI on L03 setup

hey i was wondering, i want to get some better throttle body setup, buit im not sure how to go about doing it. iknow for the lt1s you can by the 52mm TBs compared to the 48mm stock, but i dont know about on the L03s, so any suggestions on cheap ways to upgrade in any way??
Old 07-10-2003, 09:05 PM
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Several individuals and companies will port/polish and even bore out your stock TBI for a fair price. Or you could do those yourself.
(See Ultimate TBI mods)

You could also look into
a TBI with 2" bores from a BBC or an aftermaket unit from Holley.

They sell on Ebay all the time
thirdgen's classified section is a good source as well

The TBI unit is not really the biggest bottle neck on the car.

Last edited by James Montigny; 07-10-2003 at 10:07 PM.
Old 07-10-2003, 10:01 PM
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For an L03 I would simply suggest the ultimate tbi mods.
Old 07-10-2003, 10:46 PM
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Car: 89 Camaro RS
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Transmission: 700r4
im not familiar with these "Ultimate TBI mods" stuff, can anyone educate me?
Old 07-10-2003, 10:51 PM
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https://www.thirdgen.org/newdesign/t...imatetbi.shtml

https://www.thirdgen.org/newdesign/t...matetbi2.shtml

It's all in the tech articles. Do a search too. Much can be learned that way.
Old 07-10-2003, 11:54 PM
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Car: 89 Camaro RS
Engine: L03
Transmission: 700r4
how much hp gains will i get? how much better with these mods help my throttle body?? is there any hp or tourque gains?
Old 07-10-2003, 11:57 PM
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Yes you will see a gain. How much, i have no idea. Just do a search. It's been covered A LOT before!
Old 07-11-2003, 12:28 AM
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hey all, you all should check out this site:
http://www.tbispacers.com/Catalog/
go to the TBI Performance page, they have flow matched injectors anda bunch of other cool crap for TBIs. the prices are a little bit on the high side, but at leasy you can get an idea of what there is out there for our TBIs.
Old 07-11-2003, 12:49 AM
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They just sell products from turbocity. Go here.

http://www.turbocity.com/
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