Fast VS BBK Throttle Body
Thread Starter
Racer
Joined: May 2006
Posts: 254
Likes: 0
From: Bradford Ontario
Fast VS BBK Throttle Body
I'm getting a BBK intake manifold for my 99 Corvette Hardtop, but i'm wondering which throttle body i should get. Fast 90mm T.B. or BBK 80mm T.B. BBK is cheaper but Fast is bigger. What do you guys think I should get?
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I also would say neither at this point, there has been so much success now with the ported LS2 and they are rather inexpensive to start with I would go that route. The FAST had issues early on, not sure if they still do.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Originally Posted by mfrejek
I haven't seen anyone post anything yet that suggests any of the throttle bodies are anything but a waste of money.
Drifting
Joined: Nov 2005
Posts: 1,801
Likes: 0
From: Peterborough"I'd rather be topless than all couped up" Ontario
St. Jude Donor '07-'08-'09-'10
BBk
Did cam and BBK intake and BBk T/B rockers crane 1.8 gold and some other stuff
sorry headers and x and borla Stingers Dyno did not reflect as much as I expected but thats always the way,
to the point BBK T/B I am been told cost me 30 hp insted of getting more I switched back to stock and No SH-- 22 hp increase
Want to buy one have it cheap 3000 Km on it
sorry headers and x and borla Stingers Dyno did not reflect as much as I expected but thats always the way,
to the point BBK T/B I am been told cost me 30 hp insted of getting more I switched back to stock and No SH-- 22 hp increase
Want to buy one have it cheap 3000 Km on it
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Originally Posted by Z06FRC
I'm getting a BBK intake manifold for my 99 Corvette Hardtop, but i'm wondering which throttle body i should get. Fast 90mm T.B. or BBK 80mm T.B. BBK is cheaper but Fast is bigger. What do you guys think I should get?
I don't know what bolt configuration the BBK manifold has, or even if the FAST 90 TB will fit. There's been lots of discussion about the FAST TB sticking, so I'd go with the LS2 or Nick Williams, if they fit that manifold.
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Melting Slicks
Joined: Dec 2000
Posts: 2,118
Likes: 2
Originally Posted by silver_z06
does anyone have the bbk T/B on their car, I hear a lot of "I hear its garbage" but hearing and knowing are 2 different things
I've had the 80mm BBK w/LS6 intake on my car for over 4 years...its gone along with upgrades that increased power from 345rwhp to the current 850rwhp. It has performed flawlessly! Several other local cars use the 80BBK with the same solid reliable performance. I don't know where the idea that its junk came from...mostly people that have never used one... passing on B.S. as accurate information.
Le Mans Master
Joined: Aug 2000
Posts: 5,294
Likes: 2
From: Suffolk, Long Island NY
Originally Posted by HIGHRPM
I've had the 80mm BBK w/LS6 intake on my car for over 4 years...its gone along with upgrades that increased power from 345rwhp to the current 850rwhp. It has performed flawlessly! Several other local cars use the 80BBK with the same solid reliable performance. I don't know where the idea that its junk came from...mostly people that have never used one... passing on B.S. as accurate information.
Safety Car
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
Originally Posted by zeevette
I don't know what bolt configuration the BBK manifold has, or even if the FAST 90 TB will fit. There's been lots of discussion about the FAST TB sticking, so I'd go with the LS2 or Nick Williams, if they fit that manifold.
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
I have a ported LS6 TB on a F.A.S.T LSX that takes up to a 78mm TB and it works perfect for my set up on a DD. Like mentioned port a LS2 TB and enjoy it.
SC5
BTW why does the F.A.S.T whistle? There is no vacuum leak. I was told that is the characteristics of the F.A.S.T
SC5
BTW why does the F.A.S.T whistle? There is no vacuum leak. I was told that is the characteristics of the F.A.S.T
Last edited by SLPRC5; Sep 7, 2006 at 12:33 AM.
Le Mans Master
Joined: Aug 2000
Posts: 5,294
Likes: 2
From: Suffolk, Long Island NY
I can hear induction noise, I'm not sure if I would call it a whistle though. I also have H&C, LT's, and no cats, so it's tough to hear anything but exhaust. 
The manifold's walls are thinner than stock, that's possibly why we can hear noises we haven't before.
The manifold's walls are thinner than stock, that's possibly why we can hear noises we haven't before.
Le Mans Master
Joined: Aug 2003
Posts: 9,298
Likes: 4
From: American Canyon Lethal Injection
Originally Posted by Face
I can hear induction noise, I'm not sure if I would call it a whistle though. I also have H&C, LT's, and no cats, so it's tough to hear anything but exhaust.
The manifold's walls are thinner than stock, that's possibly why we can hear noises we haven't before.
The manifold's walls are thinner than stock, that's possibly why we can hear noises we haven't before.
Thanks,
SC5
Racer
Joined: Dec 2005
Posts: 426
Likes: 0
From: Northern Virginia
there's an 85mm ls1 tb for under $200. should be a good match for the bbk. Its by Professional Products, check out byunspeed.com
But 85mm>78mm= more hp
The $600 85/85 going to take off as a good alternative to the $1100 90/90
But 85mm>78mm= more hp
The $600 85/85 going to take off as a good alternative to the $1100 90/90
Burning Brakes
Joined: Feb 2006
Posts: 917
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From: 10.54 @ 129 346 N/A A4 Record 9.78 @ 139+ on 150 shot
i did the fast 90/90 set up with a nick williams tb picke dup 25 rwhp ... i looked at bbk but was told because its not a compast like the fast it retains heat
