DYNO DAY Results!!
02-28-2009, 09:52 PM
#28
Launching!
Join Date: Sep 2008
Location: Mississississississississississippi
Posts: 202
Likes: 0
Received 0 Likes
on
0 Posts
Well guys I am glad to see that you all had a good day, and it was good having you there. I was really running around after yall left trying to help out with a friends Raptor 750R and get you all the graphs. If there is anything we can do for you just let us know.
You guys are correct we operate a heart breaker
This is in no way a number friendly dyno, but I can assure you it is one of the absolute best dynos to tune on. The math is really simple to convert the numbers to either dyno jet or flywheel
for a dyno jet(more friendly number) it is a 15% correction or 1.15. this simple math will give you a dynojet number
getting the flywheel number can be a little more difficult as it will vary from manual to auto. a typical solution for manual w/ single drivetrain vehicle is 15%. for a AWD or 4wd this can be anywhere from 22%. an auto would be 20%
having said that none will be dead on as lightening any of the drivetrain components will reduce rotational mass thus lessening parasitic loss. i have seen everying thing from a 2006 porsche cayman w/ a drive train loss of 7%(rear engine transaxle) to 27% 2003 Evo VIII(transverse front engine AWD) to about 30% loss thru a TH400(this was determined by using a engine dyno, and then a chassis dyno once installed)
those are easy to determine being factory stock vehicles knowing what they are rated at and then getting the WHP number. the moment anything changes trying to attempt the flywheel number becomes a very rough estimate.
Once again thank you guys for coming by, and if we can help anyone we will be more than happy to.
You guys are correct we operate a heart breaker
This is in no way a number friendly dyno, but I can assure you it is one of the absolute best dynos to tune on. The math is really simple to convert the numbers to either dyno jet or flywheelfor a dyno jet(more friendly number) it is a 15% correction or 1.15. this simple math will give you a dynojet number
getting the flywheel number can be a little more difficult as it will vary from manual to auto. a typical solution for manual w/ single drivetrain vehicle is 15%. for a AWD or 4wd this can be anywhere from 22%. an auto would be 20%
having said that none will be dead on as lightening any of the drivetrain components will reduce rotational mass thus lessening parasitic loss. i have seen everying thing from a 2006 porsche cayman w/ a drive train loss of 7%(rear engine transaxle) to 27% 2003 Evo VIII(transverse front engine AWD) to about 30% loss thru a TH400(this was determined by using a engine dyno, and then a chassis dyno once installed)
those are easy to determine being factory stock vehicles knowing what they are rated at and then getting the WHP number. the moment anything changes trying to attempt the flywheel number becomes a very rough estimate.
Once again thank you guys for coming by, and if we can help anyone we will be more than happy to.
02-28-2009, 10:09 PM
#30
TECH Fanatic
iTrader: (3)
Join Date: Aug 2005
Location: Jxn, Miss
Posts: 1,560
Likes: 0
Received 0 Likes
on
0 Posts
Sharky, i haven't actually put it on the track but I am hoping for some 13's! I had a time slip before the radials, converter , and good tune and went 14.5 spinning @98. I hope to run soon! Thanks for the comments guys and I am very pleased with my times also!