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

Under Pulley???

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Old Dec 24, 2001 | 06:40 PM
  #1  
RS91's Avatar
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From: Guam
Under Pulley???

Under drive Pulley are they worth it???

Thanks...
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Old Dec 25, 2001 | 01:11 AM
  #2  
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From: Maple Shade, NJ
i didnt notice a difference that much. Response was a wee quicker and smoother, look nice, and its something you can say yo have.

Downside is that it dimms power at idle
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Old Dec 25, 2001 | 02:08 AM
  #3  
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From: Elsa TX
Engine: 305
Transmission: 700R4
Yup its nice to have, and its not much hp but its the total that counts.
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Old Dec 25, 2001 | 12:55 PM
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From: Dublin Oh US
Dyno wise it makes a big difference i would definitly use them!!!!! reason being less mass to spin, less wobble, thus reducing drag, which frees up a bit of HP not to noticable but number wise its much noticable
Attached Thumbnails Under Pulley???-mvc-005s.jpg  
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Old Dec 26, 2001 | 09:51 AM
  #5  
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From: Hacienda Heights, CA
Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
I have a 3-piece set on my RS. It really makes little difference. Before you decide to buy it, answer the question. What type of driving do you typically do? If the car is your daily driver and sees a lot of stop and go traffic (as in our infamous LA rush-hour freeway commutes) forget about it. Too many have problems with their cars overheating and the alternators failing to keep their batteries fully charged. I wonder why? j/k If your car already suffers from the common overheating problems forget about it. Solving one problem, to create two others isn't worth it. There is only a minor gain in hp. Lon
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Old Dec 26, 2001 | 10:29 AM
  #6  
Fish89's Avatar
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From: Aurora,Il,
Car: 89 Camaro
Engine: 97 LT1
Transmission: T-5
Axle/Gears: 323 Posi
I put just the 2 piece set on my car. felt a little difference. But it dropped 2 to 3 tenths off my 1/4 mile time.
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Old Dec 26, 2001 | 07:28 PM
  #7  
Z28 Boy's Avatar
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From: Charlotte, NC
Car: 1991 Camaro RS
Engine: GMPP 350 HO w/TBI
Transmission: 700R-4
Axle/Gears: 10-bolt w/3.73s
damn...2-3 tenths? thats pretty good...

yeah i have the 2 piece set too. its just the crank and alternator. i didnt want to slow down the water pump because i was scared of cooling problems. i got mine from ebay for like 40 bucks, so i couldnt refuse.

-brian
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Old Dec 27, 2001 | 06:40 AM
  #8  
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Thanks for all the info guys... I'll thing about it....
Thanks
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Old Dec 27, 2001 | 08:41 AM
  #9  
Fish89's Avatar
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From: Aurora,Il,
Car: 89 Camaro
Engine: 97 LT1
Transmission: T-5
Axle/Gears: 323 Posi
Yeah, I was very pleased with them. I didnt think it would make that big of a difference. They are pretty cheap even if you buy them new and it takes no time to put them on. So it was totally worth it.
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