Help question about FAST 102 on an LS2
Thread Starter
Race Director
Joined: Oct 1999
Posts: 13,298
Likes: 14
From: Somers NY
Help question about FAST 102 on an LS2
I have an 05 LS2 just put on KOOKS headers, and want to go to better intake and eventually a cam (not to radical)
First I was told that a FAST 102 will not fit on an LS2 unless I also get new fuel rails..
and some other items..
I know with the old FAST 92 you had to modify the intake manifold etc..
What about the new 102 can I just bolt it up to my 2005 LS2 without changing or buying new fuel rails or any other parts..
I'm trying to keep within my budget..I got the KOOKS , next I would like to put on a FAST 102.. and in a few months when I get the $$ put in a cam.. (the car also has a CAI "Vararam")
I just didn't want to spend much more than the $800 the the FAST 102 will cost me.. .....Will I need any other parts besides the Intake itself???
I thought about porting the stock intake manifold, but was told the LS2 intake manifolds are pi** poor and not worth the time to port...
Thanks guys..
First I was told that a FAST 102 will not fit on an LS2 unless I also get new fuel rails..
and some other items..I know with the old FAST 92 you had to modify the intake manifold etc..
What about the new 102 can I just bolt it up to my 2005 LS2 without changing or buying new fuel rails or any other parts..
I'm trying to keep within my budget..I got the KOOKS , next I would like to put on a FAST 102.. and in a few months when I get the $$ put in a cam.. (the car also has a CAI "Vararam")
I just didn't want to spend much more than the $800 the the FAST 102 will cost me.. .....Will I need any other parts besides the Intake itself???
I thought about porting the stock intake manifold, but was told the LS2 intake manifolds are pi** poor and not worth the time to port...
Thanks guys..
Thread Starter
Race Director
Joined: Oct 1999
Posts: 13,298
Likes: 14
From: Somers NY
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
I know the 102 clears the cowl/firewall unlike the 90/92 which is great news.
Melting Slicks
Joined: Jan 2005
Posts: 2,326
Likes: 5
From: louisville "derby city" kentucky
hey jpee, the 102 will fit an 05 ls2 with no problems other than the fuel rail covers will need some slight surgery........that being said, i picked up a few hp over a stock spinmonster ported one. but i picked up a ton of torque. had 419 ft.lbs. went up to 460 ft.lbs. with the 102. 
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
I'd like to see him do a ported stock throttle body as well.
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Former Vendor
Joined: Nov 2010
Posts: 2,210
Likes: 6
From: Denver CO
Peak Speed Shop is a Supporting Vendor of the Corvette Forum. Our LS2 customers generally gain 9-13 rwhp from our Basic Porting and 15-20 rwhp from our Radical Porting. We charge just $250 for basic and $370 for radical. So, from a cost per horsepower standpoint, this is some of the best bang for the buck. For the difference between Basic and Radical porting, go to our web site at http://www.peakspeedshop.com/
We also port the FAST102 and our customers generally get an additional 12rwhp from the porting on an LS2 application.
Le Mans Master
Joined: Jan 2002
Posts: 5,892
Likes: 1,200
From: Ft. Myers FL
JPee, my buddy Bob Bearn, C6-13thPilotCar has a ported Fast 92 for sale. I was thinking of buying it, but, we're moving to Florida. So, that's off for now. I suggest you contact him. He has a Prod. Red 05 that turns in the 10's and he said that intake gives you an honest ( Dyno confirmed) 20 hp.
Go for it. Then you'll finally be quicker than me!!
Go for it. Then you'll finally be quicker than me!!
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
JPee, my buddy Bob Bearn, C6-13thPilotCar has a ported Fast 92 for sale. I was thinking of buying it, but, we're moving to Florida. So, that's off for now. I suggest you contact him. He has a Prod. Red 05 that turns in the 10's and he said that intake gives you an honest ( Dyno confirmed) 20 hp.
Go for it. Then you'll finally be quicker than me!!
Go for it. Then you'll finally be quicker than me!!
The 92mm might be far better suited to John's combo anyway. The only thing is, how did Bob get it to fit, did he alter the manifold itself or did he cut the cowl/firewall for clearance? I know John would rather not do either one but if the price is right...
Enjoy life in Florida Mike,
we'll miss ya at the E-town Corvette Challenge events. 
Le Mans Master
Joined: Jan 2002
Posts: 5,892
Likes: 1,200
From: Ft. Myers FL
LS1LT1:Enjoy life in Florida Mike, we'll miss ya at the E-town Corvette Challenge events.
Just I doubt I'll ever turn as well there or see any DA's like we did at E-Town. Most of all I'll miss the friends I made at the Challenge. By the way, Bob's intake had been modified so it would fit right on.
Instructor
Joined: Jun 2010
Posts: 160
Likes: 0
From: Spring Lake Michigan
The FAST 102 is a great choice. However, if money becomes tight, you should understand that porting your LS2 stock manifold is a great option that many choose. You are right in that the LS2 stock manifold is poor. However, it is one of the manifolds that has the biggest gains from porting. The reason is that the factory sonic welds 3 pieces together to form the manifold. In that process, some of the pieces do not squarely match together, causing ridges and bumps that disrupt air flow. The porting process smooths all of those transitions.
Peak Speed Shop is a Supporting Vendor of the Corvette Forum. Our LS2 customers generally gain 9-13 rwhp from our Basic Porting and 15-20 rwhp from our Radical Porting. We charge just $250 for basic and $370 for radical. So, from a cost per horsepower standpoint, this is some of the best bang for the buck. For the difference between Basic and Radical porting, go to our web site at http://www.peakspeedshop.com/
We also port the FAST102 and our customers generally get an additional 12rwhp from the porting on an LS2 application.
Peak Speed Shop is a Supporting Vendor of the Corvette Forum. Our LS2 customers generally gain 9-13 rwhp from our Basic Porting and 15-20 rwhp from our Radical Porting. We charge just $250 for basic and $370 for radical. So, from a cost per horsepower standpoint, this is some of the best bang for the buck. For the difference between Basic and Radical porting, go to our web site at http://www.peakspeedshop.com/
We also port the FAST102 and our customers generally get an additional 12rwhp from the porting on an LS2 application.
Tolero Apto Victum
Joined: Jul 2007
Posts: 9,669
Likes: 37
From: Woodlands TX
The FAST 102 is a great choice. However, if money becomes tight, you should understand that porting your LS2 stock manifold is a great option that many choose. You are right in that the LS2 stock manifold is poor. However, it is one of the manifolds that has the biggest gains from porting. The reason is that the factory sonic welds 3 pieces together to form the manifold. In that process, some of the pieces do not squarely match together, causing ridges and bumps that disrupt air flow. The porting process smooths all of those transitions.
Peak Speed Shop is a Supporting Vendor of the Corvette Forum. Our LS2 customers generally gain 9-13 rwhp from our Basic Porting and 15-20 rwhp from our Radical Porting. We charge just $250 for basic and $370 for radical. So, from a cost per horsepower standpoint, this is some of the best bang for the buck. For the difference between Basic and Radical porting, go to our web site at http://www.peakspeedshop.com/
We also port the FAST102 and our customers generally get an additional 12rwhp from the porting on an LS2 application.
Peak Speed Shop is a Supporting Vendor of the Corvette Forum. Our LS2 customers generally gain 9-13 rwhp from our Basic Porting and 15-20 rwhp from our Radical Porting. We charge just $250 for basic and $370 for radical. So, from a cost per horsepower standpoint, this is some of the best bang for the buck. For the difference between Basic and Radical porting, go to our web site at http://www.peakspeedshop.com/
We also port the FAST102 and our customers generally get an additional 12rwhp from the porting on an LS2 application.
Former Vendor
Joined: Nov 2010
Posts: 2,210
Likes: 6
From: Denver CO
Our Radical porting of the LS2 intake manifold with stock LS2 throttle body generally gains 15-20 rwhp / 17-22 rwtq. An increase in rwhp is seen throughout the curve, however, the greatest increase is between 4,500 and 5,500 rpm's.
As I mentioned earlier, the FAST is a great way to go. However, for the budget minded.... if you compare cost per horsepower gain the radical porting looks pretty good:
FAST @ $830 = $29.64 per hp
Radical @ $370 = $19.50 per hp
By the way, when we port an intake manifold, we charge just $75 to also port the throttle body. Customers find it not only adds a few more hp, but are especially please with a crisper throttle response.
Racer
Joined: Dec 2010
Posts: 418
Likes: 0
From: South Central Kansas
Thanks
Bob
Former Vendor
Joined: Nov 2010
Posts: 2,210
Likes: 6
From: Denver CO
Question?? Is it necessary to get a tune when installing the fast 102 on an LS2? My only current performance mod is a Z06 exhaust system (Manifolds to mufflers). I would like to avoid a tune if at all possible. I do realize that I will be leaving some HP on the table. What do you suppose the gains are without a tune and is it safe to install a FAST 102 without a tune?
Thanks
Bob
Thanks
Bob
Racer
Joined: Dec 2010
Posts: 418
Likes: 0
From: South Central Kansas
Thanks
Bob
SUBVETTE
Joined: Jul 2006
Posts: 3,841
Likes: 93
From: San Diego CA
I realize that manifolds cause changes in air to fuel ratios. I also know that and engine's electronics can compensate for some mods, just didn't know if doing a manifold requires a tune. For me there are warranty concerns to consider if contemplating a tune.
Thanks
Bob
Thanks
Bob
Former Vendor
Joined: Nov 2010
Posts: 2,210
Likes: 6
From: Denver CO
Intake Manifold Porting Special
Peak Speed Shop is running a special on porting intake manifolds and throttle bodies to Corvette Forum members through January 15th, 2012. Here is a link to the thread:
http://forums.corvetteforum.com/c6-t...y-porting.html
http://forums.corvetteforum.com/c6-t...y-porting.html
