Ported FAST 90 intake vs LS6 intake dyno comparison
Thread Starter
Joined: Nov 2001
Posts: 8,246
Likes: 34
From: Victoria, TX
Ported FAST 90 intake vs LS6 intake dyno comparison I've done this many times on high compression applications, but never on a 9.2:1 compression motor running 87 octane. The following dyno comparison is on my 2000 TA with a forged 347, 9.2:1 static compression, AFR 225 heads, and 224/230 .609/.604 113LSA +2 turbo cam. With help from 98Aggie (Kurt Decker), we baseline dynoed the car with an optimally tuned motor running an LS6 intake, factory 78mm TB and 85mm MAF. While the car was still on the dyno, we swapped to the Tony Mamo ported FAST 90 intake and Nick Williams 90mm throttle body. Same day, same dyno.
As usual, the Mamofied FAST lost nothing down low, but gained nicely in the upper ranges. The baseline dyno was 425 rwhp/405 rwtq. The after dyno was 449 rwhp/414 rwtq. A gain of 24 rwhp and 9 in torque. I've seen higher gains with 11.5:1 motors, but I was curious to see if the gains would work on a 9.2:1 motor. It did. Not surprising, my KPa at WOT improved with the intake/TB swap. Before, my manifold pressure would drop from 101KPa to 94KPa at WOT at peak power. Now, the pressure only drops from 101KPa to 97KPa. An improvement of 3KPa mean the engine is pulling less of a vacuum at WOT. Less intake restriction. Hats off to Tony Mamo for another great manifold.
As usual, the Mamofied FAST lost nothing down low, but gained nicely in the upper ranges. The baseline dyno was 425 rwhp/405 rwtq. The after dyno was 449 rwhp/414 rwtq. A gain of 24 rwhp and 9 in torque. I've seen higher gains with 11.5:1 motors, but I was curious to see if the gains would work on a 9.2:1 motor. It did. Not surprising, my KPa at WOT improved with the intake/TB swap. Before, my manifold pressure would drop from 101KPa to 94KPa at WOT at peak power. Now, the pressure only drops from 101KPa to 97KPa. An improvement of 3KPa mean the engine is pulling less of a vacuum at WOT. Less intake restriction. Hats off to Tony Mamo for another great manifold.
__________________
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.
Last edited by Patrick G; Feb 3, 2008 at 04:04 PM.
That's impressive. I'm wondering for my own situation what the gains would have been with the factory 75mm maf in place of the 85mm version. I guess if the stock throttle body was more of a restriction, that the maf wouldn't have been the source of flow restriction.
I'm hoping that I see the same gains as you. I don't have the AFRs, but my compression is slightly higher, around 11.2:1.
Quite impressive, thanks for posting this.
I'm hoping that I see the same gains as you. I don't have the AFRs, but my compression is slightly higher, around 11.2:1.
Quite impressive, thanks for posting this.
Thread Starter
Joined: Nov 2001
Posts: 8,246
Likes: 34
From: Victoria, TX
The 85mm MAF, stock bellows and UPD lid (with paper Fram filter) was used on both pulls. The swap was literally done on the dyno. The LS6 pulls were with an optimally tuned motor. The FAST was done with a quick tune. I'm sure with more time, we could have sqeaked 1 or 2 more ponies out of it.
__________________
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.
Last edited by Patrick G; Feb 3, 2008 at 10:23 PM.
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