Topic: How much Air Flow and Horsepower

[Bill/BentON Racing]

I talked with Kenny @ CycleX today. I forgot to ask,his head and the one Byron did for Gary Pena probably two of the heads done with that thought in mind,damn the dollars, how much can we do? Kenny has yet to run his, next year at Indy, he's hoping for. I'm going to post the time slip from Gary's run tonight. He and Byron got together again @ 85 and decided to built as bad azz a motor for a pro stock type bike,running in gas, N/A. He ran 8.887, will check ,can't remember mph rt now, Bill.....oh yeh, Ive made a deal with Gary to purchase the record setting engine! Already put down deposit, soon,we' ll know more!  Bill

[Jerry Rxman Griffin aka MuthaF'er]

Hey Josh, typo here?

"The two other ported CB cylinder heads we flowed were F2's one was done at Yoshimura East in the 70's has 33.5mm over size K valves 75 cfm. The other has F2 34mm cycle x super flow valves flowed 75cfm at .400 and was done by a local company.      Josh"

All the F2/F3's had 34mm intakes to begin with and didn't come out until 77. Were you perhaps thinking 75/76 F/F1 with their 32mm intakes that went oversize to 33.5mm? Good info!

Would you be open to flowing any other heads for other members?

[HB-1fan]

To explain my question a little more clear, I understand that terms and wording will differ from area to area.

I am curious to know what kind of Air flow and horsepower numbers have been reached with a "maximum effort" SOHC cylinder head and or engine?

"Maximum Effort"   In my area this means "No holds barred", "At any cost", "going to the limit" , etc. 

In my area we like fast bikes and cars, my street bike that I have been riding for 20 years makes 230 HP with a very easy tuneup. (has not been apart since built 20 years ago)

Now while I am primarily a drag racer, the question is geared some what toward all out drag racing.

Sounds to me you should be asking about the specs for the heads from the V8 "Sorcerer" engine, soon to be reborn!!!!!!!

HB

[77F]

Jerry,

    No wasn't a  typo the cylinder head is a  410 casting the intake valves are Manley 33.5mm stainless intake valves in the F2 head. Think they were put in for added clearance haven't checked. Cam looks to have allot of lift and duration motor was set up for injected nitro. I could flow a cylinder head for other forum members (new to posting ) if they wanted hadn't thought about it ?   

Regards,

    Josh