We have 2 dynographs that i think alot of you guys might appreciate. The first graph is of a pretty much stock H22a all it has is a dc Header and rsr exhaust. Base line showed us that we were make 176 Hp to the wheels and 144 Lbs of torque. With no other changes other then the Cnc ported head it made 188 Hp to the wheels and 151 Lbs of torque. It picked up 12Hp and 7lbs of torque. With some cams it should pick up alot more with the higher flowing head.

The second graph is of a F20B motor from the sir Accord in Japan. It is only 2.0 Liters. The F20B motor Has Jun Cams and valvetrain, Custom Header and Hondata. Our Baseline showed that it made 199HP and 140 lbs of torque. Adding only the Cnc Ported head We made 213Hp and 147 lbs of torque. We picked up 14Hp and 7 lbs of torque. No cam gear changes were made on both engines.We only tuned the Hondata to make sure A/F ratios were correct. We could have yielded about another 2 to 4 Hp from tuning them. I just wanted to compare apples with apples.

Both motors have stock blocks and are running on 91 octane of course.
Id like to thank Minh and Charles (our Fellow Honda-Tech members) for the Dyno Graphs. The h22a graph and install of the Cnc ported Head will be in Super Street Pretty soon.






Modified by prospeed at 10:13 PM 4/14/2003

 

do you have the flow charts for the head work?

 

On the F20b that was Hand Ported...

 

Wow...I would have wanted my car to be fine tuned!!!Those power bands look sloppy!!!I would be very disappointed!!!!