question on dynos

vegasspeed · 07-24-2009, 11:10 AM

I did my dyno last fall with a Mustang Dyno and got 340whp/360wtq. How different would it be if I had it on a Dynojet? Any guesses on that?

Zeph · 07-24-2009, 11:14 AM

Quote:

Originally Posted by vegasspeed

I did my dyno last fall with a Mustang Dyno and got 340whp/360wtq. How different would it be if I had it on a Dynojet? Any guesses on that?

My shop tells me their mustang dyno is about 7-8% lower than a typical dynojet. They used to use another shop's dynojet for all of their cars. Now they installed a Mustang Dyno in their own shop and have compared all of the dyno sheets.

They prefer the Mustang for tuning since it puts a realistic load on the car while it dyno's (better street simulation).

sbdavis1 · 07-24-2009, 11:17 AM

I've always preferred Mustang, simply because it's more accurate with the car being under load, and i trust it more for comparison purposes when modding. However, they do produce lower numbers, so for all the dyno queens...dynojet is preferred. not to say i'm not one of those "queens"

jpsimon · 07-24-2009, 11:19 AM

well it all depends on how you use it. if you have baseline numbers on the dynojet, the modded numbers are fine for comparison... same for mustang dynos.

it's all about the delta.

Zeph · 07-24-2009, 11:24 AM

It is just more "fun" to see the bigger numbers and the bigger increases. You will notice for every car on every forum and at every car meet the numbers people will claim are ALWAYS gonna be Dynojet with STD correction. This gives the highest results, plus it works out since everyone ends up using the same standard for car to car "comparisons".

A local shop was showing my numbers on an SSTT to some local M3 guys, comparing the dyno's and they were amazed at the torque curve

It really makes an M3 look very weak except up near redline where they finally make the HP.

vegasspeed · 07-24-2009, 11:41 AM

I have a stage 3 tune from Dinan, catted DP's from Ultimate Racing, and that is about it. So if I did a dyno jet run I would probably end up with roughly 355 or so? I should do another run this fall when it gets cooler and not 110 out everyday. I am contemplating doing a turbo swap soon too.

07-24-2009, 11:10 AM	#1
vegasspeed Captain 80 Rep 761 Posts Drives: 335i 6MT coupe Montego Blue Join Date: Apr 2008 Location: Las Vegas iTrader: (1)	question on dynos I did my dyno last fall with a Mustang Dyno and got 340whp/360wtq. How different would it be if I had it on a Dynojet? Any guesses on that? __________________ 335i coupe Montego Blue Dinan stage 3 tune, Advan RS wheels 350whp/365wtq 1994 Brooklands Green Acura NSX Comptech Supercharged 390whp/300wtq
	Appreciate 0 Tweet Quote

07-24-2009, 11:17 AM	#3
sbdavis1 First Lieutenant 20 Rep 325 Posts Drives: 335i Join Date: Jul 2008 Location: tempe iTrader: (2)	I've always preferred Mustang, simply because it's more accurate with the car being under load, and i trust it more for comparison purposes when modding. However, they do produce lower numbers, so for all the dyno queens...dynojet is preferred. not to say i'm not one of those "queens"
	Appreciate 0 Quote

07-24-2009, 11:19 AM	#4
jpsimon Team Zissou 3065 Rep 10,197 Posts Drives: 2022 AWD M3 Comp - SMB Join Date: Dec 2006 Location: CT iTrader: (7)	well it all depends on how you use it. if you have baseline numbers on the dynojet, the modded numbers are fine for comparison... same for mustang dynos. it's all about the delta.
	Appreciate 0 Quote

07-24-2009, 11:24 AM	#5
Zeph Major 27 Rep 1,410 Posts Drives: 2008 E92 335i 6MT SGM CR/BD Join Date: Jul 2008 Location: Southeast USA iTrader: (0)	It is just more "fun" to see the bigger numbers and the bigger increases. You will notice for every car on every forum and at every car meet the numbers people will claim are ALWAYS gonna be Dynojet with STD correction. This gives the highest results, plus it works out since everyone ends up using the same standard for car to car "comparisons". A local shop was showing my numbers on an SSTT to some local M3 guys, comparing the dyno's and they were amazed at the torque curve It really makes an M3 look very weak except up near redline where they finally make the HP.
	Appreciate 0 Quote

07-24-2009, 11:41 AM	#6
vegasspeed Captain 80 Rep 761 Posts Drives: 335i 6MT coupe Montego Blue Join Date: Apr 2008 Location: Las Vegas iTrader: (1)	I have a stage 3 tune from Dinan, catted DP's from Ultimate Racing, and that is about it. So if I did a dyno jet run I would probably end up with roughly 355 or so? I should do another run this fall when it gets cooler and not 110 out everyday. I am contemplating doing a turbo swap soon too. __________________ 335i coupe Montego Blue Dinan stage 3 tune, Advan RS wheels 350whp/365wtq 1994 Brooklands Green Acura NSX Comptech Supercharged 390whp/300wtq
	Appreciate 0 Quote