OK... so realistically
OK... so realistically ok, a little background:
right now i have some VERY hogged out LS6 heads. they are ported out quite a bit and i was told they flowed 33X + cfm's. 2.08 1.60 valves, and milled down to 63 CC's roughly.
im currently running them on my 408 with a 250/255 615/619 111 LSA cam and full bolt ons.
REALISTICALLY what would be the best choice?? would it be more cost effective to buy a FAST 90/90 with the money i make off my LS6 intake and TB ? or would it be an even better idea to sell the heads while im at it and buy an entire new L92/L76 head/intake combo??
realistically what kinda power differences will there be?? is it worth all the effort to tear heads off and replace them or should i jsut throw a ported FAST on there and call it a day?
im stuck right now...
right now i have some VERY hogged out LS6 heads. they are ported out quite a bit and i was told they flowed 33X + cfm's. 2.08 1.60 valves, and milled down to 63 CC's roughly.
im currently running them on my 408 with a 250/255 615/619 111 LSA cam and full bolt ons.
REALISTICALLY what would be the best choice?? would it be more cost effective to buy a FAST 90/90 with the money i make off my LS6 intake and TB ? or would it be an even better idea to sell the heads while im at it and buy an entire new L92/L76 head/intake combo??
realistically what kinda power differences will there be?? is it worth all the effort to tear heads off and replace them or should i jsut throw a ported FAST on there and call it a day?
im stuck right now...
On The Tree
Joined: Sep 2004
Posts: 183
Likes: 0
From: edgewater, fl
as far as the other heads go, im not sure about the flow but i would just stick the fast 90 on there but i would get the Nick williams 90 TB, I just whent with this setup, ill be puting it together tonight, i read/heard to many bad storys about the fast 90 TB sticking around 2000-2500 r's due to not enought return spring pressure. Ill tell you one thing that NW 90 TB is very nice and plenty of return spring presure. just my .02
Ever get that thing on a chassis dyno...??
Your trap speeds indicate VERY soft power....even for a 346 H/C car.
With a 408 and all that cam you should be closer to 130 MPH, never mind 120 (assuming your 116 in your sig is the best its run).
I would try to sort out your combo before you did a thing....something is waaaay off. Stock Z06's with a good driver in decent air can trap 116 MPH.
Just my .02
Tony
Your trap speeds indicate VERY soft power....even for a 346 H/C car.
With a 408 and all that cam you should be closer to 130 MPH, never mind 120 (assuming your 116 in your sig is the best its run).
I would try to sort out your combo before you did a thing....something is waaaay off. Stock Z06's with a good driver in decent air can trap 116 MPH.
Just my .02
Tony
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On The Tree
Joined: Sep 2006
Posts: 121
Likes: 0
From: Greenville, Texas
Originally Posted by Tony Mamo @ AFR
Ever get that thing on a chassis dyno...??
Your trap speeds indicate VERY soft power....even for a 346 H/C car.
With a 408 and all that cam you should be closer to 130 MPH, never mind 120 (assuming your 116 in your sig is the best its run).
I would try to sort out your combo before you did a thing....something is waaaay off. Stock Z06's with a good driver in decent air can trap 116 MPH.
Just my .02
Tony
Your trap speeds indicate VERY soft power....even for a 346 H/C car.
With a 408 and all that cam you should be closer to 130 MPH, never mind 120 (assuming your 116 in your sig is the best its run).
I would try to sort out your combo before you did a thing....something is waaaay off. Stock Z06's with a good driver in decent air can trap 116 MPH.
Just my .02
Tony
I second that.... Some cam only cars running that mph around here.
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Originally Posted by Tony Mamo @ AFR
Ever get that thing on a chassis dyno...??
Your trap speeds indicate VERY soft power....even for a 346 H/C car.
With a 408 and all that cam you should be closer to 130 MPH, never mind 120 (assuming your 116 in your sig is the best its run).
I would try to sort out your combo before you did a thing....something is waaaay off. Stock Z06's with a good driver in decent air can trap 116 MPH.
Just my .02
Tony
Your trap speeds indicate VERY soft power....even for a 346 H/C car.
With a 408 and all that cam you should be closer to 130 MPH, never mind 120 (assuming your 116 in your sig is the best its run).
I would try to sort out your combo before you did a thing....something is waaaay off. Stock Z06's with a good driver in decent air can trap 116 MPH.
Just my .02
Tony
tony... im at 4900 ft elevation.
car put down 474 RWHP corrected on a mustang dyno.