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Old 11-07-2006, 02:52 PM
Ron H's Avatar
Ron H Ron H is offline
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Join Date: Jan 2005
Location: Great White North
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Well, I have learned a few things.
1. is I am making at least 75 more RWHP with my 310 cc KRE 74 cc d ports over my 6x-4 heads. Mainly because,the flow went up and they have a better chamber design. The CR helped a bit as well. I was thinking that I may have lost some throttle response earlier. But with a bit more tuning yesterday on the way home, the low cruise throttle response is there, there is just so much more power in heavy part throttle and a huge amount more power in WOT.
2. I think my cam actually may be better for these heads and may have been a bit big for my old combo as my CR was only 9.4 to 1 and they only flowed 240ish. If the CR is higher 10 to 1 or so and the heads flow 240 @ .550 lift that cam is spot on.
3. Higher lift cams without a huge amount of duration and overlap can produce great torque and HP numbers providing you have the heads to use it.

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  #2  
Old 11-07-2006, 03:04 PM
Skip Fix's Avatar
Skip Fix Skip Fix is offline
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Join Date: Dec 1999
Location: Katy,TX USA
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Good job tuning Ron! I'm sure there is more there.

Jim you have refined your combination from the air cleaner all the way out the exhaust so well you can run much faster than most other guys with "similar" parts. I'd bet you could dominate the stock FAST classes if you decided to go there! You can do more with less than most of us.

I'm a little less patient and dense so I need the extra buffer of more airflow to help me get there. My combination would be easily duplicated by others as I've gotten there with less tuning time. The only refined piece I have is my "high port" welded Torker II. For me 6000 isn't a big deal.

It's all about your goals for your car using the same general theory to get there.

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