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+--- Thread: Post your Dyno results, pictures, etc! (/showthread.php?tid=5809)
- BLAIR - 04-21-2007
Here is some examples and write ups
Actually...The Mustang Dyno's work slightly different than the Dyno-Jet Dyno's...
Mustang Dyno's apply a load, via eletro-mechanical resistance, then rwhp is calculated based on how your "acceleration/unit of time" of this load occurs...
DynoJet Dyno's simply use a large drum, of know mass, as its rotating resistance...Then rwhp is calculated based on how your "acceleration/unit of time" of the drum occurs...
From what I am told the Mustang dyno gives you a "true" or real world rwhp... i.e. my '00 FRC put down 307 rwhp stock, using 12% drivetrain loss and that is 348 flywheel hp (factory rated 345 hp)...My '02 Z06, on the same Mustang dyno, put down 348 rwhp stock, divide that by 12%, using the same 12% drivetrain loss is 395 fwhp (factory rated at 405 hp)
Dyno Jet Dynos give more of a bragging rights rwhp...
The difference between the two is about 10%...Dyno Jets registering the higher hp readings...
Yours for example...358 rwhp Mustang Dyno vs. 405 rwhp DynoJet...358/405=.884...Pretty close to the 10%...
Last comparison one of the F-body guys posted on LS1.com was the something like the following...338 rwhp Mustang vs. 378 rwhp DynoJet...338/378=.901
Again...285 rwhp using 12% drivetrain loss gives 324 fwhp, factory rated 320 hp...If you use the DynoJet hp, then you get the following...315 rwhp with 12% drivetrain loss gives 358 fwhp, factory rated 320 hp...So you see, it sound great to think these engines are putting out this kind of power, but it's just not as realistic of a number as you get with the Mustang Dyno...
some more write ups on the topic
http://www.z06vette.com/forums/archi...p/t-47063.html
- WRXtranceformed - 04-21-2007
I didn't know you have / had a vette? Or was that a quote you put in there
- CaptainHenreh - 04-21-2007
WRXtranceformed Wrote:I didn't know you have / had a vette? Or was that a quote you put in there
I think it's his dads?
- BLAIR - 04-22-2007
quotes from other forums-freinds.. that why i said here are some examples.. not mine directly
- Kaan - 04-22-2007
as long as your TQ curve and HP curve cross at 5,250 rpm the dyno is on the money... no matter what style. some read higher, some read lower... but as long as they cross their your numbers are "true" for that dyno.