now i understand that ppl can't decide which one is more accurate. but my thinking is that as long as you can compare your results and curves from the dyno and use it to improve your performance isn't the dyno serving it's purpose either way??
considering that the dynojet shows more power, but if you are using the printouts to tune the car, i think it's up to personal preference as to which one you use.

just my $.02

 

Dyno's should be used as nothing more than tuning devices.

There are those who can drive and then there are those who post dyno numbers

 

a mustang dyno told me on my na prelude i had 388lbs/ft torque. =]

 

I heard nothing but bad news about the Mustang dynos. They are notorious (sp?) for their inaccuracies.

 

my had had 98 fwhp and 289 ft/lbs trouqe on the mustang

 

read my other post. Its based on your gearing. If you take out the gear ratios, you will have your TRUE torque.

 

So you are saying that it is the car owners fault that the H22 reads 388ftlbs of tq. He also read 160whp or something like that on the same run (not sure but it was low). If gearing was improving his tq then it should also show up in his HP reading as well. It is the dyno's and the dyno operators job to give a accurate measure of hp and tq. Not the car owner.

 

my post may not have been clear. Its not the owers fault. You came up with that. Its the way mustangs read. That is the actual torque if you want to get technical. Since it is mutlplied by the gear ratios. (thats the easy way to say it without giving the formulas). The hp is accurate. It is dervied from the torque. They do read lower, but it is more accurate. There was an article in SCC a long time ago about this. I'll try to find it if i can. The one thing to keep in mind is that if you try to tune do it on the same type of dyno. People "in the know" will know what you're talkign about if you say a h22 only made 160 hp on a mustang dyno. Its a known fact to people who know about dynos. It goes un-said. I'd say 160 is anywhere from 30-40 hp off for crates engine. Kyles supercharged civic se (b16) did 190HP on a mustang. That should be around 220-230 on a dynojet. See the comparison?

 

Well, you're suppossed to dyno a car in the gear closest to 1:1 so what you said doesn't happen.

 

chassis dynojets are simply more accurate than a mustang dyno. The difference between mustang and dynojet is the difference between g-tech and a time slip.