G5X2 with FFHP heads
04-10-2005, 12:22 AM
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G5X2 with FFHP heads I am pretty pleased with what my setup is putting down right now. My mods are Headers, Lid, G5X2, FFHP LS6 style heads, and dual cutouts.
These are Superflow dyno numbers:
428 RWHP
400 RWTQ (I can't remember exactly what my tq number was, but it was right at 400)
What do you guys think? I REALLY wanted 450 RWHP. But, I am not dissappointed at all. Up next on the mod list is a pulley and ported throttle body. Hopefully that will get me close to that mark.
These are Superflow dyno numbers:
428 RWHP
400 RWTQ (I can't remember exactly what my tq number was, but it was right at 400)
What do you guys think? I REALLY wanted 450 RWHP. But, I am not dissappointed at all. Up next on the mod list is a pulley and ported throttle body. Hopefully that will get me close to that mark.
04-11-2005, 04:50 AM
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your lowend torque seems really low for having aftermarket ls6 style heads.
you dont hit 350 till 3600rpms,
who tuned your car?
is it tuned well?
is your cam installed dot to dot? could be a degree off.
your high end HP falls off early too for a cam that size.
every car is different but i would be really disapointed, my numbers and curve were better with less mods a 224 cam and a whole lot of oil getting passed the rings.
you dont hit 350 till 3600rpms,
who tuned your car?
is it tuned well?
is your cam installed dot to dot? could be a degree off.
your high end HP falls off early too for a cam that size.
every car is different but i would be really disapointed, my numbers and curve were better with less mods a 224 cam and a whole lot of oil getting passed the rings.
04-11-2005, 01:17 PM
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I don't know about the other stuff, and this maybe none of my business but the man tuning the car is A. Procter. He's the best around, I just got back from the dyno and to say I'm pleased with the results is an understatement. AP did a bang up job and knows the LS1/LS6's inside and out. So XtrmLS1spd tune should be dead-on. I think his numbers are really good considering the dyno in question is very modest. 
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04-11-2005, 03:24 PM
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Originally Posted by CANNIBAL
Eric, isn't this also a copied G5X2, i.e. it has the same gross specs of lift and duration and LSA but not the propietary lobes of the LG version, correct?
04-11-2005, 05:07 PM
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this is an LG Motorsports G5X2 cam, we got it directly from LG Motorsports
the dyno used is a superflow SF-840 dual eddy current style dyno and may have had the car under a load as opposed to a dyno-jet inertia style dyno.
the dyno used is a superflow SF-840 dual eddy current style dyno and may have had the car under a load as opposed to a dyno-jet inertia style dyno.
04-11-2005, 07:52 PM
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Just got on to answer the questions, but it looks like everything has been answered. I couldn't be happier with my setup and FFHP did a damned good job on it. With Alex Procter tuning my car, it couldn't get much better!
04-11-2005, 08:28 PM
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Also the car was dynoed with cutouts right off the header collector so tq is lost a bit down low. With the cutouts closed at the headers and going through the stock catback it made 350 rwtq at 2800rpms but peaked at 370rwtq going through the muffler. He will post the other graph tonight.
Dynojet numbers are inflated and everyone should know that.
A dyno is a tuning device to show a gain.
Also he has higher flowing heads than stock so the car is getting more air so the cam does not have to rev as high to make peak power as a car with stock heads would.
What did your car run again xttc2000?
Dynojet numbers are inflated and everyone should know that.
A dyno is a tuning device to show a gain.
Also he has higher flowing heads than stock so the car is getting more air so the cam does not have to rev as high to make peak power as a car with stock heads would.
What did your car run again xttc2000?
