The car:

Dan Buschur's "Beater". You will note it's even labeled a beater by the dyno sheet.

2003 EVO8, we bought wrecked. Car is driven 365 days a year at 28-30 psi of boost. The car has only ever had 93 octane in it, no E85, no race gas, no mixtures of any sort.

The details:

Engine was left in the wrecked car with 3x,xxx miles on it. We had a set of used JE stock compression pistons and a set of used Eagle rods we dropped in the car with fresh rod bearings and rings. The car now has 78,000 miles on it, so 40,000 miles have been put on at 28-30 psi using used parts to begin with. Balance shafts are both in the engine, engine has never been out of the car.

Head, stock with a set of springs, make unknown.

Cams, not sure, either HKS272's or HKS280's, whatever we had used when the car was put together.

Turbo, STOCK EVO9, unported. Exhaust manifold, stock ported.
02 housing, SS fabricated
PTE 780's
BR 3" turbo back with big Magnaflow muffler
BR upper and lower i/c pipes
BR Race FMIC
BR 3" MAF pipe and some cheap filter
AEM EMS, Series 1
Stock ignition
Single Walbro fuel pump
Exedy twin CM HD
BR lightweight battery kit
Espelir lowering springs
Stock intake, stock throttle body, stock EVO9 BOV
Stock weight, stock struts, heavy cast wheels with Blizzak snow tires, stock brakes/rotors.

As you can see other than a set of USED drop in pistons/rods this isn't what would be considered a "built" EVO. It has had one purpose since it was bought wrecked, to drive everyday all year, which it has done well.

It's missing custom built one off parts, an ignition upgrade, higher than stock compression ratio, good cams, ported head, aftermarket intake manifold etc. It's just a basic set up with rods/pistons in it.

I tuned the car for Dan to drive daily, the dyno sheet below shows 403 whp/403 ft lbs. This was done on 93 octane only and as you can see with a peak boost of 29.0 psi. AFR's from 3,000 rpm to redline were set at about 11.4-11.5:1.




Boost response.

2500 rpm=6.3 psi
3000 rpm=11.68 psi
3500 rpm=19.73 psi
4000 rpm=29.0 psi
4500 rpm=28.42 psi
5000 rpm=28.0 psi
5500 rpm=27.05 psi
6000 rpm=26.5 psi
6500 rpm=24.4 psi
7000 rpm=22.9 psi

Now keep in mind for comparison purposes, the boost target is not 35+ psi, it is only 28-29 psi. The peak torque hit at 4,000 rpm. Peak power at 6250 rpm.

Obviously the car could make more power on different fuel or pushing it harder, this is the same tune that's been in the car, same boost levels and fuel for 40,000 miles.

Also, the car has STOCK cam gears on it set to 0. No magic MIVEC on the intake side and no adjustable cam gear on the exhaust side. It's also missing the magic ECU controlled boost button, just an OLD manual boost controller, make-unknown.

 

Can you imagine this thing cranked up to 35 on E85.. The spool would be ridiculous.. What a simple setup..

 

More then likely , and depending on the inertia of the rollers, spool will suffer as read on pure inertia dyno..

I have a 4th gear boost plot from stock ported turbo, spools up even quicker, for comparisons sake on a properly setup mustang..
LMK if you want me to post it up..

 

Sure, post it up with some details of the build. I'd like to see a bunch of different turbo's and plots posted with good information. Thanks!

 

nice and simple. is the aem so much better than the stock ecu? i asked because i came across this https://www.evolutionm.net/forums/ev...-e85-army.html and this car is on e85. what hp does a bolt on car with e85 make on your dyno?

 

So ah...

What are we comparing to again???

 

No real build here, all stock except for the following:
Perrin FMIC
880 injectors
E85
Intake, exhaust, MBC
GSC S1 camshafts
Ported hotside,manifold, and 02
Car went 11.6@121 with the 6 speed @3430lbs at this power level on E85

 

this is more inline with the typical build that i see on here. Dan's car must have a higher compression or the aem is so much better than stock ecu since his car generates more hp & torque on 93 than your example on e85

 

That's pretty impressive.

370 WHP runs 121mph in a 3430 pound car (+ driver???).

David, has that 404 WHP car been ran and if so, what does it weigh?

 

Let's not get off topic, yes this dyno graph is in response to that thread but to keep myself out of trouble I made two posts on the first page of that thread, got insulted and moved on.

Petey, that's a nice curve. Is that an EVO8 turbo? Boost is retarded, at what rpm did it hit 30?

I can't think of a basic build on E85, most of the E85 tunes I see are at least Stage 4 and usually an upgraded turbo.

 

03white, the 403 whp car is full weight minus the front bumper beam, my brother is about 200 pounds. He also carries some other misc stuff in the car that I'd guess weighs more than the bumper beam. He has run it, if my memory serves me right I think it ran 11.1 at a high 124 mph.

 

Dan's car uses our original JE piston which I already stated is stock compression. For me personally, the AEM will make more power than the stock ECU.

 

Dave,

How many other 9 turbos have you done that have made the same results on 93?

GST ran 29psi on E85, and Petey hit 31psi on E85, but you have made more power than both using 93 octane. I guess we should stop looking for magic turbos and start looking for magic ecu's?

Anyone have dyno sheets showing a before and after with simply an AEM swap on a moderately built Evo? That would be very interesting to see.

 

Tccomp, that's excellent spool up on the Red! I'll check some logs and see what Project White did.

 

it was a Black and thanks. stock ported exhaust manifold & ported turbo. looking at my logs the best i seen logged with the omni 4 bar was 35psi by 3980rpm, so about 35 by 4k.. i think thats pretty good considering the flowrates the fp black can put out. I have not gotten a chance to retune spool yet on new motor, so maybe even sooner this time I have one log that showed 33 by 3890 also. all done in 3rd gear.

i know all your tunes ive seen have optimum spool. you're very good with getting quick spool on your tunes.

add:
I ran a evo3 16g for many years and loved it, I agree the mitsu turbos are hard to beat and ive never seen anything bad come
out of MHI. Even the evo3 16g can flow 44lb/min or more when pushed to its limit, and thats just a little 16g compared to the evo 9 turbo.