I just noticed that most people are saying they are getting around 230whp on the new Evo IX, which seems about the same for the VIII. That comes in at about a 20% drivetrain loss. Seems kinda high to me, does the AWD soak up that much? I am sure all the fluids are synthetic so can't save any HP by changing fluids like in some cars. Are most of these runs being done outside of California on 93 octane fuel? or is this 233 with 91 octane that we have in the Cheap gas state of California?

 

Nah, man, most of them are dyno'ing 270+. You are just talking about a few on Mustang Dynos. You have to understand that there are many different types of dynos that all read completely different numbers. The Dynojet numbers are the standard for comparison, although Mustang Dynos are far better tuning machines. IX are not reading the same as 05s on avg...they are more like 15-20whp higher on average than 05s and 35-40whp higher than 03/04s.

Anyway, regardless of how you look at it, this is not how you determine drivetrain loss. The IX is obviously underrated by Mitsubishi. 270whp on a Dynojet is more like 330HP at the crank. The only way to see true drivetrain loss is to dyno the engine itself, then dyno the power to the wheels. AWD can be 20-25%, but it's not really a linear figure as HP increases...

 

u are so reliable when it comes to these things. but ur always mean........in a good way

 

I'm with Warrtalon. The numbers for the IX (on Dynojets and other unnamed dynos) are pretty impressive and well above 230.

Drivetrain losses can, however, be pretty large, specially when you are talking about a car with complicated and oversized gerboxes like the evo. I can't give you a figure off hand as I am not familiar with the figures car manufacturers are comfortable with. But I'd say it's probably more than twice that of an ordinary 2wd job, may be as high as 2.5x. Just think of all those parts it has to spin up to whatever speed you drive at. Losses are, afterall, one of the things that what makes gearbox design so much fun.

Now, Porsche will give you same hp figures for both the Carrera 2 and 4, but I think these are crank hp rather than whp. Interestingly, they quote a lower top speed for the 4 and the 2. Not by a lot though.

 

Thanks for the input, so people are dynoing 270whp on a dynojet? On a stock car? Must be usuing the 93 octane the car is designed for. I wonder what the cars dyno on the **** gas here in California? That is an impressive number, actually shocking. I really didn't know that the IX was putting down those numbers when I bought it. I mean, I like the car, Sold my VIII and regreted it, and I wanted a IX before because I like the old school Rally Look of the car. I just didn't imagine it putting down some serious numbers. Mitsubishi must have done some more reworking in the 4G63 Then I thought. My IX has about 700 miles on it now, and I am gradually reving it up, Had it on boost a little today, just because, and the thing is wicked. Its just like BAM theres 60, BAM theres 80, Bam there is 100.............Bam, don't want to push my luck then slowed down. haha. Jeff.

 

You mean you don't know what Mitsu did to improve the IX? They gave it a MIVEC head and a larger turbo that is superior to the previous turbos on the 03-05s. The IX makes more peak hp/tq and has a much flatter/broader power curve. These benefits hold true not only in stock form, but also when adding mods. Basically, a tuned IX with intake/exhaust/mbc makes as much power as an 05 with all the bolt-ons and cams.

Btw, you should boost from day one, but just not go over 5k rpm. Now that you have 700 miles, you should go all out...rev it to 7500 in every gear.