i dyno'd my '98 eclipse gsx with shiv there at 17-18psi on the forced performance big-t28 turbo upgrade, it put about 215hp to the wheels and it would pull mustang cobras and slp camaros when i was running 18psi (i was having wastegate problems it would spike to like 21-22psi then drop to 17psi by redline)... stock cams, stock head, stock intake manifold, stock throttle body... s-afc well tuned, 650cc injectors, ported O2 housing, not ported turbo or exhaust manifold, 3"downpipe (cat-free), 3" hks superdragger exhaust, injen intake arm, centerforce clutch so no slippin, so my guess is that i was making about 315-320 hp acounting for the size of the turbo and the fact that people run high 11's-mid 12's at 19-21psi boost all day on it, so to those who say you dont lose about 29-33% percent to the wheels on a dsm on a real dyno like shiv's, more like 23-25% on a dyno jet, i have to say i disagree... to give you an idea, that turbo is like a big 16g but a little meaner...

I SOLD MY GSX 2 MONTHS AGO< TOO MANY TICKETS WANT AN EVO ANYWAY

 

If Shiv's dyno doesnt produce acurate wheel horsepower numbers, then what dyno does, and explain how you know that it does.

 

oops i forgot, greddy front mount intercooler and hard piping and greddy bov, no leaks

 

no you dont get it, shivs dyno gets almost exact wheel horsepower reading, but that doesnt tell you what motor horspower you have, you can only guess... his dyno is ridiculously accurate for wheel horspower though, id say give or take 1hp.... thats what you get when you spend 120k to have one of few realy dynos in the world

 

I see both sides of this argument. What's the point of having spent that much money on a piece of equipment, that doesn't read correct horsepower? So I agree that it is close, but close only counts in well, you know... Why start a thread that says "EVO only makes 180whp!" If it doesn't matter what the dyno reads according to you? Why not just have the output read in some sort of arbitrary measurment, let's say "Brass *****."

Shiv could then say, "On my dyno, the WRX produces 160 brass *****, whearas the EVO pulls 190 on 93 octane, IF I lean it out and unhook the exhaust, the evo produces 30 more brass *****."

You could then replace the unit of measure with anything you want: loogies, smurfberries, powdered doughnuts, etc.

But a horsepower is a unit, it is in the dictionary, it isn't open to interpretation. You don't see hp according to the Dynojet, or according to the D-Dynamics. So even though it is a good tool to pit one car against another and to judge the effects of modifications, you can't (or shouldn't) just come out and say "This car produces this much AWHP, 'cause my dyno says so. Understand?

 

Maybe that is true, maybe it isn't. But the fact is that ALL cars end up dynoing very low on dyno dynamics dynos compared to other dynos, AWD, 2WD, doesn't matter. And people have been comparing these numbers to other chassis dyno numbers and calling the Evo a slug without even looking at actual performance numbers.

A dyno number is NOT a performance number!

 

Perhaps there is a market for 1 foot rulers that are actually 8 inches long. I think this would make a lot of guys very happy

Cheer,
Shiv

 

Your ruler seems to have a knob on it that adjusts the length of your 1 foot ruler.

 

Eh boy... I give up.

Enjoy your cars guys...


shiv

 

I will Shiv...as soon as i sell my current car and buy an Evo

 

lol, I would have done that a while ago if I were you....

my only comment...
dyno numbers mean nothing unless you are consistantly using the same machine with the exact same settings so you can develop trends between different cars, and before & after when you are adding parts or fine-tuning 1 car.

 

I think shiv needs to start using a real dyno called, G-Tech Pro. j/k

Actually I wouldn't mind seeing what that little gizmo had to say since I know how to relate that to my car. I would be interested in seeing what kind of Gs are being pulled through each of the gears. Anyone have an Evo VIII and a G-Tech Pro?

Data and numbers, I need more data and numbers.

 

Logical arguments can never win out over ignorant positions. Thats what makes this forum such a rich source of comedy.

 

Sorry, I've never been one to proclaim someone as absolutely right simply because of their position.

Statements like this:
"Our EVO VIII, for some reason, only has a 1bar MAP sensor. Strange seeing it in a turbo car that runs 19psi of boost. I would expect nothing less than a 3bar unit for the car. With the 1 bar MAP sensor, it maxs out (reads a full 5v) at 0psi of boost. Bizarre and pretty useless, as far as I can see. While I didn't check the other cars we tested, I suspect they are similarly equipped. "

And this:
"The car runs a frequency-based MAF sensor. Not the usual 0-5v types seen on most other cars."

And this:
"The EVO VIII's factory ECU is a bit more sophisticated that the older EVOs which had no type of active knock correction or smart ignition learning capabilities. Even the processor on the board is bigger These new ECU smarts will present more complications on the tuning end. But that's what we do so we consider it a challenge."

And this:
"The EVO, like the WRX, is suseptible to MAF misreadings through intake modifications. We measured some pretty wild MAF errors when trying out different intake configurations."

...simply make me laugh. Hellooooo Captain Obvious!

I guess you can start at square 1 if you really want to when it comes to tuning Mitsubishis. Or you can build upon 13 years of advancement. Buschur, AMS, Pruven, etc are building on 13 years of advancement.