tod85 wrote:Yes, I have the dyno graph. It is interesting.
Yes, CR was the same.... actually a hair higher with the camel backs due to 62 cc chamber..... other two were 65 cc.
No other changes were done to the motors, same dyno, same day.... each set was tuned for optimum power (timing/jetting)
All dyno results were corrected for fairness.
tod85 wrote:A Cylinder head battle has recently occured on a mild street/strip bracket motor..... whats your prediction on the power of each? Here is the set-up and the 3 participants.
4.04" bore x 3.85" stroke
Weiand Team G intake
Hyd roller cam .544/.554 w 1.6's - 230/236 @ .050" - 112 lsa
approx 10-1 cr
1 3/4" headers
1) Camel Back heads with a competition port job done by Mike Stark of CFM performance. 2.02/1.60 - 62 cc chamber
2) Off the shelf Dart Pro-1 Platinum 200cc aluminum cylinder heads - 65 cc - ($ 1460 cost)
3) Off the shelf AFR 195 Eliminator aluminum cylinder heads (street port, not the competition) - 65 cc - ($ 1485 cost)
Who wins ? How much HP of each ?
B20Paul wrote:That's not really a fair comparison. All else being equal, iron heads are going to make more power at the same compression.