under the valve covers
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Joined: Sep 2007
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From: AZ
Re: under the valve covers
Originally Posted by MD SRT6
Absolutely, hey I'm not trying to be negative , just saying once you get down into the 11's every tenth is a HUGE deal ! And 10's without some serious engine work and or a different/extra power adder ain't happening. But 11's are pretty serious times, this puts you out there with the big boys ! And is something to be very proud of. A 10.75 second pass @ 125mph in a 3400lb. car requires about 500hp at the wheels versus a 11.95 pass @ 117mph in a 3400lb. car requires 360hp at the wheels. You see my point? Not trying to be a ****, just trying to help some that may not understand that. Where are the 140hp gonna come from? I predict one new person will hit the 10 second mark this year and he'll be spraying nitrous.( BDJ's Racing ) Besides, not everybody want to go that fast, it's hard on the car for one, different DA's to deal with,gotta do a roll cage/bar and run slicks, then you gotta get a trailer etc.... Sorry for the rambling. Later !
She can ride with me ;)
Joined: Sep 2007
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From: Sharon, PA
Re: under the valve covers
Originally Posted by cruzinquick
So are you saying my 11.89 pass was more than 360 at the wheels? I tell everyone I have 350 at the flywheel. They believe me too.
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Joined: Sep 2007
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From: AZ
Re: under the valve covers
Originally Posted by cruzinquick
So are you saying my 11.89 pass was more than 360 at the wheels? I tell everyone I have 350 at the flywheel. They believe me too.
)
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Joined: Jan 2008
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From: North Plains, OR
Re: under the valve covers
Originally Posted by MD SRT6
......I can't wait to get back to the track, it is open now over here, but rained every weekend for the last three. Soon, Soon,I Pray ! ....)
MikeR
Joined: Feb 2009
Posts: 292
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From: Alabama
Re: under the valve covers
Very interesting flow results. First, it looks like flow doesn't even start to stall out until almost .500" lift. That says that for best results, any cam that goes in there should have .500" max lift or better. Secondly, intake to exhaust (I/E) flow ratio is (roughly) 66% before and 66% after. That's ok and can be corrected for with a cam that has roughly 8-12 more degrees exhaust duration than intake. Lastly, from the intake flow numbers, the max hp that can be supported by a particular head flow is roughly 1.5 times (for 6 cyl) the flow at .500" lift and 28" water, or 1.5 x 300 (after) = 450 hp, given that the cam is big enough. The before number is 1.5 x 280 or 420 hp, so the hp potential has increased by ~30 hp from porting. Those numbers are from N/A engines so a S/C will have different results.
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From: Michigan
Joined: Feb 2009
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From: Mission Viejo, CA
Re: under the valve covers
Originally Posted by james malek
Thanks for the great photos. Is the valve train and piston confiqureation the same on the standard engine without the turbo.
I'll go ahead and nominate this post for "LULZ of the Week."
James my friend, that is what we call a "gross conceptual error."
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