gain from ls6 intake to fast 78??
0-1 rwhp gain. Poor hp gain per dollar spent. The FAST 90 is a much better performance piece.
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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.
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2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
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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.
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Originally Posted by Patrick G
0-1 rwhp gain. Poor hp gain per dollar spent. The FAST 90 is a much better performance piece.
If you are all about dyno numbers sure go for the 90...but the 78 will perform well too.
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This is probably the 8th time I've shared this info regarding the FAST 78....
8-11 HP over stock....Ive done the test more than once and the results have always been similar.
I originally had a ported 78 FAST on my original 346 combo with the AFR 205's and our 224/228 cam.....when I made the move to the 90 mm version I only picked up about 5-6 HP....keep in mind my stock 78 TB was also heavily reworked. Considering what I routinely see guys picking up with my ported 90 set-ups I would have to guess my ported 78 FAST with a ported 78 stock TB was worth pretty close to 20 RWHP over a stock LS6/stock 78 TB.
The FAST 78 is a solid performer but obviously the 90 unit will be a little stronger all things being equal. If you can find one for a good price don't hesitate IMO....
Tony M.
8-11 HP over stock....Ive done the test more than once and the results have always been similar.
I originally had a ported 78 FAST on my original 346 combo with the AFR 205's and our 224/228 cam.....when I made the move to the 90 mm version I only picked up about 5-6 HP....keep in mind my stock 78 TB was also heavily reworked. Considering what I routinely see guys picking up with my ported 90 set-ups I would have to guess my ported 78 FAST with a ported 78 stock TB was worth pretty close to 20 RWHP over a stock LS6/stock 78 TB.
The FAST 78 is a solid performer but obviously the 90 unit will be a little stronger all things being equal. If you can find one for a good price don't hesitate IMO....
Tony M.
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I am very content with my 78 mm FAST. Big improvement over the LS1 intake. My car is a lot faster then my friends h/c ls6 coupe, especially on the top end. From the dig its about traction, but from 55 on up in the right gear I'll take the FAST over the LS6 any day, my video shows the faster we go, the more I pulll on him. JMO
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Comprable setups too. He has the Livernois stg II h/c pkg, I am a LG Motorsports customer all the way. Cars are very equal, but I make more power, and run better up top.
got mine on yesterday, upgraded to 80mm throttle bbk and sv0 32 injectors and fast 78. I dont know if it was the combo of the three or what, but i put down 410 373tq before this and I cant wait to go back and see what it is doing now. I will let you know good or bad.
I started a similar thread in the External section. Does anyone have dyno sheets? Vette magazine did a dyno comparison test on a bunch of intakes and the 78mm seemed to do very well.
still hadnt got a chance to get to the dyno. I notice my biggest difference is that the car has alot more torque down low. It dosnt take a lot of gas to get the car moving, also high n the rpm when going through gears the car just throws you back in the seat.