[Z06] fast 92 or 102?
Thread Starter
Melting Slicks
Joined: Feb 2014
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From: chicago area IL.
Tech Contributor
Joined: Jan 2004
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From: Wylie TX --> Less is More, except under the hood !
I'm not sure how to do that anyway...
There is really no "bad" choice on this upgrade.
It just depends on how far you want to go ....
I did not want to pay anyone to do the work with a FAST102, but I felt comfortable enough with doing the Fast 92/LS2 TB myself in my garage.
I saved a bunch of $$ on doing the work myself.
If I was going to go ALL out.... then yea I would have considered paying someone to do all that work. But It would have cost me big time on labor, and extra parts needed for the 102...
Some people may want to go that extra step.
I did not want to spend the extra $$ and hassle with it.
Either way... its all good !
Toque
Tech Contributor
Joined: Jan 2004
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From: Wylie TX --> Less is More, except under the hood !
Who knows exactly why it works on some car's and not on others.
The 102 may have fit on my car cause my AFR heads are milled to 59cc.
Who knows... I did not want to risk trying it.
Toque
Thread Starter
Melting Slicks
Joined: Feb 2014
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From: chicago area IL.
i'm set on a 92 like I said its just a daily hoping to make 450/475rwhp the extra cost of the 102 for what i'm looking dont seam worth it and the part about it being tuff to tune worries me
Burning Brakes
Joined: May 2011
Posts: 769
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From: Kapolei Hi
I have a 102/102 setup on my motor and I don't mind it at all. It is just a touch slow to respond below 2000 rpm, but after that it pickup peer quickly.I will say it is a little much for a daily driver setup, but I would do it again if I had to. I also had no cowl clearance issues, though the shop did have to clearance the water pump a little bit.
Melting Slicks
Joined: Jun 2005
Posts: 2,396
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From: Sicamous BC
I've a Fast 102 with clearance issue's, the lower motor mtg's solved it. With the stock mtg's it would fit, when you pulled it off there was obvious contact.
From the performance side the out of box 102 manifold will flow as well as a properly ported 92 manifold. If the 102 is properly ported there is that additional 5-10 over the ported 92. The gains porting the 92 manifold are major were as the 102 not so much.
The lower motor mtg's if required also help to tighten the driveline up. So depending on the application there may also be a benefit to that. I added the Pfadt rear diff brace @ the same time, that totally eliminated driveline shake.
As Toque stated there is no bad choice, this is a very good modification.
From the performance side the out of box 102 manifold will flow as well as a properly ported 92 manifold. If the 102 is properly ported there is that additional 5-10 over the ported 92. The gains porting the 92 manifold are major were as the 102 not so much.
The lower motor mtg's if required also help to tighten the driveline up. So depending on the application there may also be a benefit to that. I added the Pfadt rear diff brace @ the same time, that totally eliminated driveline shake.
As Toque stated there is no bad choice, this is a very good modification.
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Melting Slicks
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Christian
Thread Starter
Melting Slicks
Joined: Feb 2014
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From: chicago area IL.
the LS2 TB & harness is all i need or is there more stuff i would need to install the intake? does any Ls2 Tb work or just certain one's?
if i was to use the adapter to keep my current TB till I did the heads cam upgrade would that be ok?
if i was to use the adapter to keep my current TB till I did the heads cam upgrade would that be ok?
Last edited by Stroker87; Aug 23, 2014 at 07:59 PM.
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Burning Brakes
Joined: Feb 2005
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From: Honolulu, HI
I can also join the club now. Tuner called today with dyno results...although they were ran on different days, I gained a whole whopping 16/11 rwhp/tq on a fast 102 from a stock ls6. That's with new 102mm TB and halltech intake. Was not worth it in my case. 452/410 to 468/421. I'll see the under the curve increase tomorrow when I pick it up.
Last edited by dagon138; Aug 28, 2014 at 12:49 AM.
Race Director
Joined: Mar 2006
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From: Everywhere and Nowhere at all
You are limited w stock cubes..... Add the FAST 102, 102mm TB, Halltech Super Bee II to a stroked engine.... Well worth the scratch. Ask me how I know.
I can also join the club now. Tuner called today with dyno results...although they were ran on different days, I gained a whole whopping 16/11 rwhp/tq on a fast 102 from a stock ls6. That's with new 102mm TB and halltech intake. Was not worth it in my case. 452/410 to 468/421. I'll see the under the curve increase tomorrow when I pick it up.
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From: Guinness Its whats for B'fast JAWGA
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Burning Brakes
Joined: Feb 2005
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From: Honolulu, HI
Here is the "increase" in-case anyone was curious.
Dyno's were overlaid but performed at different times.
This is an un-ported Fast 102. Maybe someday I'll get to porting it.
Looks cool though!
Dyno's were overlaid but performed at different times.
This is an un-ported Fast 102. Maybe someday I'll get to porting it.
Looks cool though!