FAST 90/90 gains 27 rwhp on small cammed 346!
08-05-2005, 11:03 AM
#1
FAST 90/90 gains 27 rwhp on small cammed 346! Well it was time to take the CheaTR package to an even higher level. After seeing a pretty strong vacuum signal at WOT, I knew the motor was intake restricted. After seeing his success with his C5, I contacted Tony Mamo from Airflow Research to help me with my increased appetite for air. Tony velocity ported a FAST 90mm intake manifold for me and I recently had it installed at Thunder Racing. Also added were a Nick Williams 90mm throttle body, Racetronix Plug and Plug fuel system and Racetronix 37lb. injectors (because my previous fuel system was maxed out).
Wednesday evening, we re-baselined my car. I was a little disappointed that it was down about 10 rwhp from when I last dynoed in April. Maybe the warm muggy August air had something to do with it being a little low. Regardless, the results of the Mamofied FAST 90/90 combination were ASTOUNDING. Check out this dyno:
That's a gain of around 27 rwhp! With stock exhaust manifolds and cats? The gains were incredible. Even at 2500 rpm, we were up around 10 rwtq. Peak torque increased 20. Everybody told me I was wasting my time adding a FAST 90/90 to a car running a 215 @ .050 cam. For me, it was money well spent. Don't know how much the Tony Mamo porting was worth, but I have to believe it was worth a significant part of the gain. Hats off to Shane and Stu from Thunder Racing for the beautiful install work and kudos to Geoff and Angie for the tuning help and support.
Kooks headers and catted y-pipe are next. Any predictions on gains?
Wednesday evening, we re-baselined my car. I was a little disappointed that it was down about 10 rwhp from when I last dynoed in April. Maybe the warm muggy August air had something to do with it being a little low. Regardless, the results of the Mamofied FAST 90/90 combination were ASTOUNDING. Check out this dyno:
That's a gain of around 27 rwhp! With stock exhaust manifolds and cats? The gains were incredible. Even at 2500 rpm, we were up around 10 rwtq. Peak torque increased 20. Everybody told me I was wasting my time adding a FAST 90/90 to a car running a 215 @ .050 cam. For me, it was money well spent. Don't know how much the Tony Mamo porting was worth, but I have to believe it was worth a significant part of the gain. Hats off to Shane and Stu from Thunder Racing for the beautiful install work and kudos to Geoff and Angie for the tuning help and support.
Kooks headers and catted y-pipe are next. Any predictions on gains?
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
08-05-2005, 04:18 PM
#7
Originally Posted by 30th t/a
thats incredible! i bet that car is a blast to drive.
why are you getting headers now?
why are you getting headers now?
1) I hate leaving power on the table.
2) I have to know how much headers are worth with this setup.
If the gains aren't there, I can always go back.
Trending Topics
08-08-2005, 04:11 AM
#10
TECH Senior Member
iTrader: (18)
Join Date: Jun 2002
Location: NW Houston, TX
Posts: 10,036
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Full-Force
Im betting withinn a year this car will have a mega cam in it. You have too much money and you are getting too good of results to stop. The power trip is gonna get the best of you.
You have more restraint than I do, know that.
You have more restraint than I do, know that.
10-01-2005, 12:31 AM
#12
Originally Posted by SDC
Stock heads?
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
10-01-2005, 10:23 AM
#14
Originally Posted by HotRod68Camaro
Great results! I thought you were going to try and keep it sounding stock? y go with the Kooks headers and catted y-pipe?
10-01-2005, 01:17 PM
#16
Originally Posted by NOSjohn
Wow, great gains for a stock 346! No heads on this motor? I am leaning towards the FAST intake every day. 
AFR 205's, baby cam (TOTALLY stealth), and a ported FAST intake yeilded the results above. Pat has since stepped up the cam and his new numbers are reflected in his sig, but a birdie tells me he is currently playing with his tune to yield even better results with the same combination....
Stay tuned for more on this car....I'm thinking it's barely scratching the surface of the numbers you will see in a year or two
10-01-2005, 04:12 PM
#18
Originally Posted by gollum
Tony maybe you or Pat can post instructions with pictures showing how to port FAST intake. with the wrong stroke of the grinder.
10-01-2005, 10:22 PM
#20
On The Tree
Join Date: Jan 2004
Posts: 141
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by gollum
Tony maybe you or Pat can post instructions with pictures showing how to port FAST intake. 
cute
I've got my LSx apart right now, looks pretty obvious as to what will need to be done. But I will certainly be 'taking it easy' on what I'll be doing. Easier to make it perform worse then it will be to make it any better.