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[Z06] LS7 FAST 102, does it work?

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Old 12-12-2011, 09:15 PM
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KLLRVET
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Default LS7 FAST 102, does it work?

From what I remember, when the FAST 102 first came out, there was a lot of debate if it made any power. I saw some dyno charts showing it making power, and I saw others where it didn't seem to do much.

I had a chance to bolt on a FAST 102 "loaner". Since I was recently testing headers (THANK YOU J&J Performance), it seemed only natural to keep the testing going.

My combo was as follows:

Stock milled heads .030
Bronze exhaust guides
Solid stainless Ferrea exhaust valves
Ragin Racin punisher cam and complimenting springs
Smith brothers 3/8 pushrods
Morel link bar lifters
Mahle 11.5:1 forged pistons (lighter that the stock ones BTW)
Arp head bolts
Arp 2000 rod bolts
Stock rods reconditioned by Crower
Aviad trap door oil pan insert
Lingenfelter zr1 twin disk clutch
Tick master cylinder
Ported throttle body by Jeremy Formato
Vararam intake
LG 1 7/8 headers
Modded stock mufflers
Yella Terra roller rockers

The only thing we changed was the intake, a box stock unported FAST 102. We werent expecting much really. I though maybe some midrange gains and nothing on top.
Here is what we got:

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To make sure the weather was covered, here is the conditions for both runs, not too far off:

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GREAT gains to say the least. The FAST 102 made POWER everywhere. Needless to say, the "loaner" intake will be staying, and I'll have to replace it...

Soon, I'll reinstall the LG 1 3/4 headers I have, to make one final comparison!! I predict the same peak power, and huge midrange gains!

Last edited by KLLRVET; 12-13-2011 at 07:41 AM.
Old 12-12-2011, 09:44 PM
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lane_change
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Wow....those are some huge gains.
Old 12-12-2011, 10:26 PM
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KLLRVET
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I wonder if the 102mm throttle body makes any power.
Old 12-13-2011, 03:17 AM
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SlowZo6
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Originally Posted by KLLRVET
I wonder if the 102mm throttle body makes any power.
Not sure but im going to try it with my setup.

The fast gave me nice swell in mid range as well. So far my #'s are 550rwhp and 508, im running the Lethal cam.
Old 12-13-2011, 11:52 AM
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0Anthony @ LGMotorsports
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Originally Posted by KLLRVET
I wonder if the 102mm throttle body makes any power.
I haven't done only the 102 TB, but from what I have seen it seems to pick up 6-8 hp...of course that is going to depend on the over all setup as well.

One thing I did notice is that the cars seem to be much easier to drive after the 102TB.
Old 12-13-2011, 11:55 AM
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0HinsonSuperCars
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Nice gains
Old 12-13-2011, 01:02 PM
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Wow I wouldn't have expected as much torque as you picked up. Nice gains.
Old 12-13-2011, 02:04 PM
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Originally Posted by Anthony @ LGMotorsports
I haven't done only the 102 TB, but from what I have seen it seems to pick up 6-8 hp...of course that is going to depend on the over all setup as well.

One thing I did notice is that the cars seem to be much easier to drive after the 102TB.
I got 7rwhp from the NW102 TB.
Old 12-13-2011, 02:36 PM
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A couple weeks ago I bolted a NW102TB onto my FAST intake, didn't bother with dyno runs, but I can tell you it sure is WAY more responsive (which was my main motivation for doing it). When I stab the throttle now (with the hood open in the garage) you'd swear I had a mechanical throttle linkage that need some oil, thing seems to really be grabbing some big air

Cheers, Paul.
Old 12-13-2011, 08:55 PM
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Here is what my 2008 Z06 gained with the FAST102 and NW102 combo. My mods before the FAST were E85, Halltech Superbee 102, SW 2" headers, ZR1 injectors. Peak numbers with the FAST are not that great, but I got as much as 20 rwtq under the curve, and 18 rwhp in some areas.

Old 12-13-2011, 10:44 PM
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Stop it, this thread is about to make me spend money.
Old 12-14-2011, 03:58 AM
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Originally Posted by KLLRVET

Soon, I'll reinstall the LG 1 3/4 headers I have, to make one final comparison!! I predict the same peak power, and huge midrange gains!
Old 12-14-2011, 10:31 AM
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Originally Posted by Chameleon T/A
Here is what my 2008 Z06 gained with the FAST102 and NW102 combo. My mods before the FAST were E85, Halltech Superbee 102, SW 2" headers, ZR1 injectors. Peak numbers with the FAST are not that great, but I got as much as 20 rwtq under the curve, and 18 rwhp in some areas.

This is normally what we see. 20-30 tq in the mids with a couple in the higher rpm range. Plus a much better driving car with a cam and better throttle response.
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Old 12-14-2011, 12:33 PM
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I'll find my dyno chart later. Looks almost identical. 7hp peak gain, 10ft/lbs torque with a nice mid range gain. Now if that is worth $550 is another question but it does help.
Old 12-14-2011, 01:05 PM
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Its better to look at the $$ per HP in the entire package, than per item...
Old 12-15-2011, 01:44 PM
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Originally Posted by KLLRVET
Its better to look at the $$ per HP in the entire package, than per item...
Exactly..
Old 12-15-2011, 02:33 PM
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Originally Posted by KLLRVET
Its better to look at the $$ per HP in the entire package, than per item...
My advice is don't spent too much time looking at the dollars or the hp might never arrive

Seriously though, when it comes to a hobby/passion there's no quicker way of wrecking it than to fixate too much on the expense...and consider this comment is coming from a professional cost accountant

Cheers, Paul.

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Old 12-26-2011, 07:37 PM
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Originally Posted by Chameleon T/A
Here is what my 2008 Z06 gained with the FAST102 and NW102 combo. My mods before the FAST were E85, Halltech Superbee 102, SW 2" headers, ZR1 injectors. Peak numbers with the FAST are not that great, but I got as much as 20 rwtq under the curve, and 18 rwhp in some areas.

Why the use of E85, 2" headers and ZR1 injectors when neither of them made a difference in power given these numbers?
Old 12-26-2011, 07:54 PM
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Chameleon T/A
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Originally Posted by Sherminator
Why the use of E85, 2" headers and ZR1 injectors when neither of them made a difference in power given these numbers?
Don't quite follow you... Here are my actual results:
  • E85 picked up 14 peak rwhp and 16 ft-lbs
  • Stainless Works 2" headers picked up 20 rwtq throughout most of the rpm band, and 17 peak rwhp
  • ZR1 injectors because my stock LS7 injectors were over 100% duty cycle.
Old 12-26-2011, 10:49 PM
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At least with headers you get a nice sound....fast/nw rn for $2k and a whopping 20ft/lbs TQ 5hp I'll pass

Just put it towards a blower or nitrous then will feel the difference instead wo.seeing if you do....all my .02c

If you ate s road race guy obviously the above doesn't apply and it'll be a helpful addition.


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