FAST 90 and GMPP ASA Cam = power?
02-03-2009, 11:15 PM
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FAST 90 and GMPP ASA Cam = power? Would a FAST 90mm intake and TB combo give me good gains on a 2001 SS with the GMPP ASA camshaft? I'm just wondering if that grand would be well spent upgrading to this intake or should I just keep my LS6 and spend that money on a new clutch or something. I know this cam likes a free flowing exhaust which I have but is my LS6 holding back some power and torque?
My goal is 400 to the wheels on stock heads. Thanks
My goal is 400 to the wheels on stock heads. Thanks
02-03-2009, 11:22 PM
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you can get 400 with the fast and if you have upgraded injectors, i dynoed my car and i have cncd heads with a fast 90, i only got 389 whp, i ran out of stock injector and i was running real real rich, alot of the guys there said i can easly go over 400 if i fix those issues
02-03-2009, 11:35 PM
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Oh wow, so I need to look at an injector upgrade as well? Another option I just noticed is TSP sells some nice PRC 220cc 5.3L heads for about the same price. It would be a little more work but I bet those heads would be a wiser choice than the FAST intake right now wouldn't it? I'm just trying to figure out what to spend that tax return on. lol. How do you like that ASA Cam? I haven't installed mine yet so I'm anxious to see how it does. Thanks man
02-04-2009, 11:16 AM
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Oh wow, so I need to look at an injector upgrade as well? Another option I just noticed is TSP sells some nice PRC 220cc 5.3L heads for about the same price. It would be a little more work but I bet those heads would be a wiser choice than the FAST intake right now wouldn't it? I'm just trying to figure out what to spend that tax return on. lol. How do you like that ASA Cam? I haven't installed mine yet so I'm anxious to see how it does. Thanks man
02-04-2009, 01:17 PM
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02-04-2009, 10:09 PM
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I dont think you have to have injectors just yet, when you have it tuned check the duty cycle on them to make sure.
on the intakeI personaly dont think it will make as big of a difference as you want
I would get the heads, pretty strait forward to install them, I had a blast doing it the last time I did a head swap with the motor still in the car, hardest part was the trans dip stick tube
on the intakeI personaly dont think it will make as big of a difference as you want
I would get the heads, pretty strait forward to install them, I had a blast doing it the last time I did a head swap with the motor still in the car, hardest part was the trans dip stick tube
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02-05-2009, 09:09 AM
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I dont think you have to have injectors just yet, when you have it tuned check the duty cycle on them to make sure.
on the intakeI personaly dont think it will make as big of a difference as you want
I would get the heads, pretty strait forward to install them, I had a blast doing it the last time I did a head swap with the motor still in the car, hardest part was the trans dip stick tube
on the intakeI personaly dont think it will make as big of a difference as you want
I would get the heads, pretty strait forward to install them, I had a blast doing it the last time I did a head swap with the motor still in the car, hardest part was the trans dip stick tube
02-05-2009, 09:57 AM
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my god....i've never heard of a <400rwhp car running out of injector. there are guys running small heads and cam combos in the 420s with factory injectors.
something seems really strange.
the FAST would be a good upgrade, you'd probably pick up some power. but by no means as much as a set of ported 5.3L heads. the boost in compression, and the added flow will easily make more power.
but you have to weigh the cost. you can get the fast for ~$1200, then sell you ls6 and TB for about $400.....so $800 out of pocket.
for heads you'll need the heads, pushrods, bolts, gaskets and then a dyno tune after.
so that $1200 set of heads is gonna cost nearly $2000 in the end.
but you WILL make more power.
your call.
by the way....i'm gonna be doing a before/after dyno run of my ported FAST 90/90 here in about a week.
so i'll be able to give accurate assesment of what an intake will do on stock heads.
something seems really strange.
the FAST would be a good upgrade, you'd probably pick up some power. but by no means as much as a set of ported 5.3L heads. the boost in compression, and the added flow will easily make more power.
but you have to weigh the cost. you can get the fast for ~$1200, then sell you ls6 and TB for about $400.....so $800 out of pocket.
for heads you'll need the heads, pushrods, bolts, gaskets and then a dyno tune after.
so that $1200 set of heads is gonna cost nearly $2000 in the end.
but you WILL make more power.
your call.
by the way....i'm gonna be doing a before/after dyno run of my ported FAST 90/90 here in about a week.
so i'll be able to give accurate assesment of what an intake will do on stock heads.
02-05-2009, 05:41 PM
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I agree its strange, im just stating what my tuner saw during the scan and dyno run, he says it could have also been cause he had the CAT protection on or something like that. Car runs good, and i dont have any issues going to 6500, i have more of a problem with it being rich at wot
my god....i've never heard of a <400rwhp car running out of injector. there are guys running small heads and cam combos in the 420s with factory injectors.
something seems really strange.
the FAST would be a good upgrade, you'd probably pick up some power. but by no means as much as a set of ported 5.3L heads. the boost in compression, and the added flow will easily make more power.
but you have to weigh the cost. you can get the fast for ~$1200, then sell you ls6 and TB for about $400.....so $800 out of pocket.
for heads you'll need the heads, pushrods, bolts, gaskets and then a dyno tune after.
so that $1200 set of heads is gonna cost nearly $2000 in the end.
but you WILL make more power.
your call.
by the way....i'm gonna be doing a before/after dyno run of my ported FAST 90/90 here in about a week.
so i'll be able to give accurate assesment of what an intake will do on stock heads.
something seems really strange.
the FAST would be a good upgrade, you'd probably pick up some power. but by no means as much as a set of ported 5.3L heads. the boost in compression, and the added flow will easily make more power.
but you have to weigh the cost. you can get the fast for ~$1200, then sell you ls6 and TB for about $400.....so $800 out of pocket.
for heads you'll need the heads, pushrods, bolts, gaskets and then a dyno tune after.
so that $1200 set of heads is gonna cost nearly $2000 in the end.
but you WILL make more power.
your call.
by the way....i'm gonna be doing a before/after dyno run of my ported FAST 90/90 here in about a week.
so i'll be able to give accurate assesment of what an intake will do on stock heads.
02-06-2009, 09:11 AM
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. Anyways, I forgot to mention that the dyno was reading low, some guy on a C5 z06 with a turbo only put down 420 to the wheels , which that car should easily be at 440+. Another guys car pulled 416 on another dyno, and on this dyno he pulled 366, another guy with a cam only ls1 put down 344(thats gm hotcam #s, he had an f13 if i remember correctly). So my reviews on my #s are 
lol, 2 People have driven my car they all make in the 410 rwhp area and they tell me the same thing ur car feels faster then mine, and thats with 3.23s in my rear end.
02-18-2009, 07:38 AM
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not sure of the exact specs on the ASA cam...but here are the before/after results on my home ported FAST 90/90 setup compared to the LS6/ported TB.
done same day, same dyno
~18hp peak, 12ft lbs peak, as well as 5-12 across the rpm band.
done same day, same dyno
~18hp peak, 12ft lbs peak, as well as 5-12 across the rpm band.
04-04-2009, 11:39 AM
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i have no doubt that any of the moderate sized cams and bigger (224+) would gain similar power over the LS6.
it REALLY made a difference in how the car felt all through the powerband. the gain in torque is noticable.
it surprised me that the cam only peaked at 6300rpm
it REALLY made a difference in how the car felt all through the powerband. the gain in torque is noticable.
it surprised me that the cam only peaked at 6300rpm
04-04-2009, 12:43 PM
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Would a FAST 90mm intake and TB combo give me good gains on a 2001 SS with the GMPP ASA camshaft? I'm just wondering if that grand would be well spent upgrading to this intake or should I just keep my LS6 and spend that money on a new clutch or something. I know this cam likes a free flowing exhaust which I have but is my LS6 holding back some power and torque?
My goal is 400 to the wheels on stock heads. Thanks
My goal is 400 to the wheels on stock heads. Thanks
Nice gains!
EDIT: and fwiw, when I was cam only, my injector duty cycle was at 97% so I added some 36# injectors along with the heads and its down to around 80% now
04-05-2009, 11:06 AM
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Jbird: True that on the exhaust being the key. In my ASA build i have cutouts on each header collector and the difference is seriously 2+ car lengths in the quarter. Open headers vs. the rest of my decent exhaust as it goes through high flow cats, flowmaster Y-merge, then Borla wide open is definitley 20+rwhp. By high flowing, I mean it needs to be HIGH flowing.
Now I'm just trying to find out if the FAST 92/92 is going to be what I need for the additional power. TTP made a stock weight, stock displacemnt Fbody run 11.17 @122 with an ASA cam. I'm determined to find out exactly what was done to those CNC LS6 heads to make that time possible and where I can find 'em. ASA **** has to be put together, but you can have a seriously fast car with the right components.
Now I'm just trying to find out if the FAST 92/92 is going to be what I need for the additional power. TTP made a stock weight, stock displacemnt Fbody run 11.17 @122 with an ASA cam. I'm determined to find out exactly what was done to those CNC LS6 heads to make that time possible and where I can find 'em. ASA **** has to be put together, but you can have a seriously fast car with the right components.