Dyno results are in. I am pretty happy.
02-05-2007 | 03:53 PM
#1
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SuperSport
Joined: Aug 2004
Posts: 731
From: MICHIGAN
Dyno results are in. I am pretty happy.
Well, with the Moriwaki cams, milled and ported head, the VTR put down 114.4 hp @9,300 rpms and 68.9 ft/lb @7,500 rpms. The dyno tech told me that was the strongest VTR he ever dynoed. Thanx goes out to RCVTR for the Moriwaki bits. Thanx again. I have the Dyno sheets but they are too big and in Bitmap format. I couldn't upload them to the site as they were too large. I tried photoshop and I cannot open any Bitmap with it. I can email them to anyone who could post them on here.
02-05-2007 | 04:13 PM
#7
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SuperSport
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From: MICHIGAN
Thanx guys. I liked the results too. He said he can squeeze more power out of it. The tech is a vtwin guru and he loves VTRs. My goal is to have the most powerful naturally aspirated VTR out there. LOL, I am having so much fun.
02-05-2007 | 04:18 PM
#10
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SuperSport
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02-05-2007 | 05:27 PM
#11
Hmm?
SuperBike
Joined: Oct 2004
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From: San Gabriel Valley
was how much $$$?
02-05-2007 | 06:35 PM
#13
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SuperBike
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From: South Lake Tahoe, CA, USA
Very COOL!! Thanks Ozzie.
I always wante to dyno mine and didn't get it done.
that torque curve is just what I was hoping to see. good heads, if I do say so myself.
Put a full Moriwaki exhaust system, Moriwaki pistons and HRC ignition and you'll be there. Man I miss that bike!!!
I always wante to dyno mine and didn't get it done.
that torque curve is just what I was hoping to see. good heads, if I do say so myself.
Put a full Moriwaki exhaust system, Moriwaki pistons and HRC ignition and you'll be there. Man I miss that bike!!!
02-05-2007 | 08:51 PM
#18
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MotoGP
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From: Montreal
congratulations, now you need hi-comp pistons, then....... 
I must say I feel pretty good about my VTR now as it dynoed 68.8 ft-lbs with slips-ons and a DJ kit (only 105.5 hp though as it didn't keep the torque up as long)
I must say I feel pretty good about my VTR now as it dynoed 68.8 ft-lbs with slips-ons and a DJ kit (only 105.5 hp though as it didn't keep the torque up as long)
02-05-2007 | 09:03 PM
#19
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MotoGP
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From: South Texas
that was on a dyno-jet dyno which read higher than the super-flow designs that was used by Azzkiker's shop. Very important to compare apples to apples.
02-06-2007 | 05:26 AM
#23
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SuperSport
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You won't believe it. First of all, I put the heads on myself including the flywheel. I just brought it to the garage to have it timed and dyno tuned. The tech retorqued the heads, put the radiators together and all the bits and pieces, 4-5 dyno runs, I don't remember. 300$ total. He hooked me up. He had a lot of fun too.
02-06-2007 | 05:28 AM
#24
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SuperSport
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I didn't pay attention to the inside temp or atmospheric pressure. My eyes were on the Dyno graphs.
02-06-2007 | 05:29 AM
#25
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SuperSport
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i don't have that sheet but torque pretty much was higher accross the board especially from 5500 rpms and up where it gained 4 ft.lb acroos the range til 10k rpms.
02-06-2007 | 09:44 PM
#30
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SuperBike
Joined: Dec 2005
Posts: 1,689
From: South Lake Tahoe, CA, USA
I was not so interested in the torque numbers as the characteristic of the torque curve. Increasing with increasing RPM until the cams sign off. I know, it's a combination thing and you can't really separate wht happens with just cams without testing on a stock head. I tried to keep the characteristic Honda port shape, because they have all the money and smart people to get the design right. I just put a smaller radius on the sides of the port floor to make the floor wider, worked around the valve guides and blended the bowls to the seats.
Looks like you've got the mixture pretty dialled too. Smooth curve. The dip is characteristic. Maybe needle height. My guess is needle profile.
