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from 305 tbi to 383 tbi

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Old Nov 29, 2002 | 09:12 PM
  #1  
bad@ss89camaro's Avatar
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Joined: May 2001
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From: Louisiana
Car: 91 Z/28 convertible
Engine: 305
Transmission: 700R4
from 305 tbi to 383 tbi

i know i guy that has a 383(with tbi intake) with about 350 horses he just built and i have a 92 rs 305 tbi and he said for 3,000 dollars he'll give me the engine and put it in for me. and hes positive it will run. is he full of **** .will it run ,or will it run right .wouldnt i have to change computers ,injector ,etc .he said everything will bolt right up(i know that) and it will run perfect .no changing anything. any information on this will help thank you in advance
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Old Nov 29, 2002 | 10:28 PM
  #2  
ede's Avatar
ede
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Joined: Aug 1999
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From: Jackson County
very slim chance it'll run right, and tbi isn't know for any great preformance, at the very least you should expect the ecm and prom to need changed to make it run right.
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Old Nov 29, 2002 | 11:02 PM
  #3  
brodyscamaro's Avatar
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Joined: Mar 2001
Posts: 5,144
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From: CC, TX
Car: 1999 Yamaha Banshee
Engine: 379cc twin cyl 2-stroke stroker
Transmission: 6 spd manual
Axle/Gears: 14/41 tooth
i wouldnt do it...
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Old Nov 30, 2002 | 03:00 AM
  #4  
RedFirebird's Avatar
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Joined: Jul 2001
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From: San Rafael, CA
Car: 1988 Trans Am GTA
Engine: 5.7L TPI (L98)
Transmission: 700RJunk
If you want an engine with the powerband characteristics of a diesel go ahead. TBI and performance=
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Old Nov 30, 2002 | 08:14 AM
  #5  
jpk91rs's Avatar
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Joined: Sep 2002
Posts: 234
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From: Jacksonville, Tx
Car: 91 RS, 00 TA Ram Air, 86 IROC
Engine: 305 tbi, LS1, 355
Transmission: 700R4, 4L60E, 700R4 NonLU
Re: from 305 tbi to 383 tbi

Originally posted by bad@ss89camaro
i know i guy that has a 383(with tbi intake) with about 350 horses he just built and i have a 92 rs 305 tbi and he said for 3,000 dollars he'll give me the engine and put it in for me. and hes positive it will run. is he full of **** .will it run ,or will it run right .wouldnt i have to change computers ,injector ,etc .he said everything will bolt right up(i know that) and it will run perfect .no changing anything. any information on this will help thank you in advance
With the right combination of parts and proper planning a TBI (yes I said a TBI) will give you performance comparible to any camaro regardless of the induction system (normally aspirated, of course). Do your research on the motor and find out the parts the guy used on this motor and make your induction system and exhaust system are up to the challenge. If everything you find out from the guy meets the sniff test, go for it.
You will definately need some prom tuning done to get fuel and spark curves correct. IMO it can be done.:rockon:
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Old Dec 1, 2002 | 06:56 PM
  #6  
bad@ss89camaro's Avatar
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From: Louisiana
Car: 91 Z/28 convertible
Engine: 305
Transmission: 700R4
i just wanted to know if it will work or what i need to make it work because i dont have the money to carb it so if it will work then ill do it and save up and slowly buy the parts to carb it then when i have all the parts im going to change it
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Old Dec 1, 2002 | 08:56 PM
  #7  
kfoley's Avatar
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Joined: Jul 2001
Posts: 1,766
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From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
The computer will definitely have to be changed. For performance, the TBI unit you have will have to go. You would have to get something like the Holley DFI unit. Even if the guy does get it running, it will probably run like $hit.
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