FAST 92MM is it worth it?
Melting Slicks
Joined: May 2003
Posts: 2,851
Likes: 1
From: San Bruno Ca
Thats why you go F/I, power all the time and no bottles to refill. Yep it will happen to be empty when that big race just happens to appear when least expected. If you go Nitrous, get a bottle remote bottle opener.
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
I had a fully ported LS6 intake and TB and was making 423whp on my mild cam/ported 243 heads Z06. I then switched to a fully ported Fast 90 and ported LS2 TB, against LPE's advice (they told me I wouldn't gain much and they were right.) I only gained 5 peak HP and lost a couple HP everywhere below peak and a retune didn't help. A lot of money wasted IMO. It would have made more of a difference if I had a big cam. But porting your LS6 intake and TB is worth it from a cost perspective.
Race Director
Joined: Mar 2001
Posts: 11,405
Likes: 26
From: Whippany NJ
CI 6-7-8-9 Veteran
St. Jude Donor '08-'09
NCM Sinkhole Donor
save cash?? um ok, after a spending 1300 dollars on bottle refills, your still down 20HP when the bottle is empty Vs. having it for life with a simple bolt on. you do not make any sense. 
Race Director
Joined: Mar 2001
Posts: 11,405
Likes: 26
From: Whippany NJ
CI 6-7-8-9 Veteran
St. Jude Donor '08-'09
NCM Sinkhole Donor
Drifting
Joined: Apr 2005
Posts: 1,620
Likes: 3
From: Vancouver WA
I had a fully ported LS6 intake and TB and was making 423whp on my mild cam/ported 243 heads Z06. I then switched to a fully ported Fast 90 and ported LS2 TB, against LPE's advice (they told me I wouldn't gain much and they were right.) I only gained 5 peak HP and lost a couple HP everywhere below peak and a retune didn't help. A lot of money wasted IMO. It would have made more of a difference if I had a big cam. But porting your LS6 intake and TB is worth it from a cost perspective.
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
I have a similar set up. If you go for the ported intake then you really need to upgrade the TB too. I did get the ported 90 mm intake and the LS2 ported TB. Put it on the dyno and lost about 25 hp. We decided that there was something wrong with the dyno and he will have it calibrated. (All the important parameters were right on the money) However, there is a real difference. I track at Portland most of the time and gained about 10mph on both the front and back straights. so there was a SOTP gain
I guess that's why common sense isn't science. Logically that doesn't seem to pan out. I went to the same dyno you were at, it was one of the motivators for me to sell my car to save me from myself
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Verdad Gallardo
Original Founding Member!
Joined: Jul 1999
Posts: 9,037
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From: Granby, MA
Cruise-In 1, 3, 9. 10 & 11 Veteran
I had a fully ported LS6 intake and TB and was making 423whp on my mild cam/ported 243 heads Z06. I then switched to a fully ported Fast 90 and ported LS2 TB, against LPE's advice (they told me I wouldn't gain much and they were right.) I only gained 5 peak HP and lost a couple HP everywhere below peak and a retune didn't help. A lot of money wasted IMO. It would have made more of a difference if I had a big cam. But porting your LS6 intake and TB is worth it from a cost perspective.
1. The FAST and the LS6 were just about tied for the number 1 spot.
In the article they said if cost was a factor and your car was pretty stock with just bolts ons such as an exhaust or even a CAM, that the best way to go was to port your LS6 intake or get one and port it. It will provide you a few extra HP or even more if your upgrading from the LS1 intake. Cost is nothing if you have the LS6 intake already. If your upgrading from the LS1, its around $500 plus the porting. About half what the FAST costs. HP to HP, the LS6 intake was only a couple of HP lower then the FAST. Plus the FAST's extra HP was way up top at the high RPM, a place where you really couldn't feel it, especially on a street driven car.
The conclusion was that unless your spending $$$$$$ and creating a whole engine package (such as a rebuild) that is going to really utilize the FAST and be built to compliment it, your better off just sticking with the LS6 and porting it.
Last edited by XtremeVette; Sep 27, 2008 at 09:53 PM.
Racer
Joined: Jan 2008
Posts: 297
Likes: 0
From: GREENVILLE SC
hay,is that 1300 just for the intake or that includes custom porting,i can get you a 92mm for 899 and a custom billet 90mm TB for 450
i am also direct with TNT(TEXAS NITROUS TECHNOLOGY)
i have a brand new stage I kit for 599
i am also direct with TNT(TEXAS NITROUS TECHNOLOGY)
i have a brand new stage I kit for 599
Pro
Joined: Mar 2007
Posts: 507
Likes: 5
From: Macungie Pa
I have heard others say this EXACT same thing plus I saw a comparison from a magazine that compared the FAST, LS1, LS6, BBK, and a couple of other intakes. Believe it or not the winners:
1. The FAST and the LS6 were just about tied for the number 1 spot.
In the article they said if cost was a factor and your car was pretty stock with just bolts ons such as an exhaust or even a CAM, that the best way to go was to port your LS6 intake or get one and port it. It will provide you a few extra HP or even more if your upgrading from the LS1 intake. Cost is nothing if you have the LS6 intake already. If your upgrading from the LS1, its around $500 plus the porting. About half what the FAST costs. HP to HP, the LS6 intake was only a couple of HP lower then the FAST. Plus the FAST's extra HP was way up top at the high RPM, a place where you really couldn't feel it, especially on a street driven car.
The conclusion was that unless your spending $$$$$$ and creating a whole engine package (such as a rebuild) that is going to really utilize the FAST and be built to compliment it, your better off just sticking with the LS6 and porting it.
1. The FAST and the LS6 were just about tied for the number 1 spot.
In the article they said if cost was a factor and your car was pretty stock with just bolts ons such as an exhaust or even a CAM, that the best way to go was to port your LS6 intake or get one and port it. It will provide you a few extra HP or even more if your upgrading from the LS1 intake. Cost is nothing if you have the LS6 intake already. If your upgrading from the LS1, its around $500 plus the porting. About half what the FAST costs. HP to HP, the LS6 intake was only a couple of HP lower then the FAST. Plus the FAST's extra HP was way up top at the high RPM, a place where you really couldn't feel it, especially on a street driven car.
The conclusion was that unless your spending $$$$$$ and creating a whole engine package (such as a rebuild) that is going to really utilize the FAST and be built to compliment it, your better off just sticking with the LS6 and porting it.
The comparisons of the intakes, wonder if they ported or "out of the box"? and is the FAST already ported when new?......
I might have went with the LS6 combo had I started out with the LS6 as a base....
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
I have a 2000 LS1 and I am upgrading to PRC Stage 1 243's from 853's, Whiplash cam kit, and am considering Fast 92 with matching ported 92 TB from Texas Speed....for the intentions of my car, I think my choices should work well together even with a conservative tune.....
The comparisons of the intakes, wonder if they ported or "out of the box"? and is the FAST already ported when new?......
I might have went with the LS6 combo had I started out with the LS6 as a base....
The comparisons of the intakes, wonder if they ported or "out of the box"? and is the FAST already ported when new?......
I might have went with the LS6 combo had I started out with the LS6 as a base....
