427 procharger F-1a L92 heads 858 RWHP
08-03-2007, 11:15 AM
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427 procharger F-1a L92 heads 858 RWHP I noticed a lot of discussion about L92 heads these days and made a post a week or so ago but it got locked because it referenced a for sale ad.
Anyway, the car is sold, but I wanted to share the dyno graph for those that might be interested in using l-92's for a high power build.
This was with 14psi boost 23deg timing and water/meth spray
12.0 Afr
The cam is a Dave's Total Performance 219/240 cam.
The heads were hand ported by DTP before assembly.
Anyway, the car is sold, but I wanted to share the dyno graph for those that might be interested in using l-92's for a high power build.
This was with 14psi boost 23deg timing and water/meth spray
12.0 Afr
The cam is a Dave's Total Performance 219/240 cam.
The heads were hand ported by DTP before assembly.
08-03-2007, 12:27 PM
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Originally Posted by NOS USER
Its A4 or M6 ?
Thanks.
Thanks.
M6
I'm amazed with the 23 degree's of timing. We stopped at 16 degree's with a similar setup.
Your car could of made a ton more with a better Cam looking at how the power drops hard up top.
Your car could of made a ton more with a better Cam looking at how the power drops hard up top.
Yeah, it's only 8.7:1 CR im guessing that helped.
I didn't want a huge cam. I was driving this car every day for about 3 months, and I loved that other than at idle you couldn't tell it had a cam at all.
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08-03-2007, 03:09 PM
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Originally Posted by NemeSS
how much porting was done to the heads?
what did flow?
i/e ratio?
what did flow?
i/e ratio?
About as much as you can do... I never flowed them so i guess they flowed enough.
08-04-2007, 09:32 AM
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Originally Posted by Slowhawk
I'm amazed with the 23 degree's of timing. We stopped at 16 degree's with a similar setup.
Your car could of made a ton more with a better Cam looking at how the power drops hard up top.
Your car could of made a ton more with a better Cam looking at how the power drops hard up top.
08-05-2007, 07:39 AM
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Originally Posted by ls1amit
Big power but that cam was off. Look at how the power drops off big up top. BUt it does make a **** load of down low power, but its choking up top.
I wouldn't say that the cam was way off. It still made 750 when we let out of it.
It made 850+ and you could barely tell it had a cam. The power comes on early and pulls like a mother then you can shift at 6k or so and not have to ring it out.