pro1s vs h22
Went from some old Crowers to Pro 1's. The power came on sooner with the pro 1's and went from 570hp on 21psi ( Mustang dyno ) to 650hp on 21psi ( Mustang dyno ). TQ went from 413 to 450 something and the TQ and HP was still climbing. I was having an Ignition break up at 8k, so I couldn't rev past 8k when I normally can rev and make power to 9700rpm.
H22A4 with BW S400 72mm
H22A4 with BW S400 72mm
Just did a comparison between stock cams and the pro1's on a stock bottom-end H22 the other night. This is a Stock block H22a4 with the following...
RLZ port work
Supertech valve springs and retainers
Skunk2 Pro series intake manifold
Blox 72mm throttle body
Precision 525cc injectors
Custom 3 inch intake with vibrant velocity stack
RMF header
Tuned on e85 and eCtune
Excuse the rough graph below. This was later cleaned up and smooth as could be. Come to find out the air pressure in the customers slicks were to low causing the rough reading.
Back to back cam comparison. Only the fuel graphs were touched and the cams were installed to Skunk2's "quick cam settings". +3 degrees on the intake and +4 degrees on the exhaust

Sorry didn't think to get a picture with all three graphs overlayed, but this was the final result. Timing graphs were touched as well as the cam gear timing
RLZ port work
Supertech valve springs and retainers
Skunk2 Pro series intake manifold
Blox 72mm throttle body
Precision 525cc injectors
Custom 3 inch intake with vibrant velocity stack
RMF header
Tuned on e85 and eCtune
Excuse the rough graph below. This was later cleaned up and smooth as could be. Come to find out the air pressure in the customers slicks were to low causing the rough reading.
Back to back cam comparison. Only the fuel graphs were touched and the cams were installed to Skunk2's "quick cam settings". +3 degrees on the intake and +4 degrees on the exhaust

Sorry didn't think to get a picture with all three graphs overlayed, but this was the final result. Timing graphs were touched as well as the cam gear timing
Before the cam change this car has went the following..
(right lane)

Testing the new setup out on the 19th. Hopefully the customer will see a 11 second pass
(right lane)

Testing the new setup out on the 19th. Hopefully the customer will see a 11 second pass
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thanks for all the replies.
how aggressive are they on the mild built head?
such as super tech retainer/spring. do they take it well over the years?
reason im asking.. I do drive the car on daily basis.
how aggressive are they on the mild built head?
such as super tech retainer/spring. do they take it well over the years?
reason im asking.. I do drive the car on daily basis.
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