I'd like to thank a few people first, Brad Barnhill, without VD my evo would still be corvette bait (that doesn't sound right). Spyros for making me see when someone says "you can't do that with just that" it's bull, and David Buschur, must have seen the badbish run 9,s on pump gas a hundred times that said here goes
mod list:
injen cold side pipe
injen intake pipe
specter filter??
fab o2 housing
aem wideband o2 gauge
turbo xs bov
aem 1313 computer
cams???? small looks like stock springs and retainers
arp head studs
3" turbo back exaust
oh and a shiny stainless header, and a spring on the outside of the waste gate to make it a 18 pounder , that's how I bought it.
everything else is stock (had the oil pan and head off so I know)
First pull ever
336hp and 347tq not bad, afr looks a little crazy. I'd been reading the stock manifold is hard to beat especially when ported, so I got one and ported it myself, (had a 85 mustang years ago that run 10.70's full interior, pump gas, no power adders. When it comes to porting I know what works and what doesn't. Sold it and bought my EVO viii, turncoat)
4th pull, porting done on manifold and hotside housing, still same crappy tune 365 hp 351 tq.
When I had the 9.8 hot side off that's when I noticed the exaust gasses never mix untill AFTER the turbo. In effect I'm syncing 2 two cylinder motors, if 1&4 have more back pressure than 2&3 power goes . installed pressure gages on exaust manifold (knew those big pads on the manifold were there for something). worked on the fuel map some, timing some and noticed my waste gate duty cycle was at 10.2 so I thought I'd ramp it up a little think it was to 45 or 50%, oh yea ported that o2 housing too, the short turn looked like the dover cliffs.
9th pull 410hp 365tq
Decided to throw away the old fuel map and start over also it looks like my stock injectors are maxed at around 6000. set my duty cycle to 55% all across the board.
417hp at 5900 and 407tq
Question to anyone who might know, are evos that detonation sensitive in the 5000 to 5500 range? (my timing is near 0 at 24ish psi). ramped the timing up a little quicker and held it to 6100 afrs got over 12 but...
465hp 410tq
the blue lines are what happened when I set my duty cycle to 99.6 ran out of fuel just over 4500, touche spyros all on 93 oct. It will take some time before I know how much power can be made for sure because it looks like I have to build the bottom end, redo the fuel system, not only that I WILL take it to a "real" dyno to back up the #'s, maybe top speed in Atlanta, and the drag strip of course, cause if your car makes 1000hp but only runs 12's it's still a P.O.S.

 

All I can say is your numbers are way to far fetched on the VIII turbo and IX as well. The VIII can make what your pocket can handel highest hp Evo is like over 1100 on a built 2.0.

 

some people dont even make those numbers on a fp red....

+1

 

I just knew I'd catch flack. I'm 43 not 17, I don't care if I'm believed or not, I attached a couple log files boost and wastgate out % @ 25psi. You have to remember to ask yourself this question who makes more power the man with 27 pounds of boost and 17psi in the exaust or the man with 20 pounds of boost and 5 psi in the exaust? I didn't even really want to post this some friends talked me into it, side note: if you read this and are so sure that I'm doing pulls downhill or some other BS bring your evo and the title and I'll prove it, just make sure youv'e got a bus ticket home

 

465 on 93octane and a evo 8 turbo? no.. sorry. get the car on a real dyno and go from there. you clearly do not know how to use virtual dyno properly.

 

just a quick tip for you before you make yourself look even worse here.. whenever the graph shoots up at the end with both tq/hp like graph 3 its not accurate. the RPM's need trimmed off. this is why i say get it on a real dyno, because you dont know what is right and whats wrong with this virtual program. Maybe its not so accurate with AEM EMS.

why are you asking us what the evo likes if you're tuning your own car? you should be able to find what it likes yourself if you know how to tune a car. but typically they are about 3-4* at peak boost then slowly raise the number.

 

Please, all you have to do is zoom in on your pull export it as text and run vd on the text my brothers 6 year old could do that.

 

the bottom line is every single graph you posted needs RPM trimmed and shoots up at the end. If you knew if your results were right or wrong you would not have posted the graphs or said what you did in this thread. you believe the graphs, but they are flawed.

Im not doubting you dont know how to copy and paste logs into virtual dyno.. but you clearly dont know the difference from good or bad results when it comes to virtual dynos or evos on stock turbo.. stock turbos dont shoot up at 7k, they drop off.

every single log you posted shoots up at the end. take it to topspeed and continue your tuning there.. seems the programs not accurate for AEM logs.

 

the reason I asked about the timing is because as I tried to get rid of the "knock spikes" in the 5000 to 5500 range I created a dip in the hp. it may not be knock at all just the paremeters may need changing on the knock sensor. 0 is where it's at and sometimes the knock feedback will kick it down to -2 if I was running 30psi that might be ok that rise at the end is where the timing comes back 5.5 at6000. You can actually feel it kinda go flat in the 5 to 5500 range then come back on but then no more fuel so gotta lift. thats why I didn't worry about that little rise at the end of the last few pulls cause you can feel it

 

it really depends how you calibrated the aem for timing. the numbers i said were what it likes on stock ecu, aem could be different depending how you calibrated it.

i would just get it on topspeeds dynojet and do it safe. I dont think the virtual dyno is very accurate with AEM logs as it is with evoscan.

Back in 2005 i did make 450whp on a evo3 16g ported and dsmlink, but it took about 36-38psi and was with race fuel and was on a dsm not a evo. airflow was being recorded in the 46lb/min range. turbo was definitely out of efficiency at that point.

I believe a evo 8 turbo is slightly bigger then a evo3 16g, so its not impossible to get high numbers with it, but the dyno data you have right now is not showing true accuracy so if you want bragging numbers you gotta get it done on a dynojet or switch back to stock ecu where the virtual programs are accurate.

calling people out based on those numbers is not smart tho, and a good way to lose your car title if you really were being serious.

 

right!? a true 450whp evo (especially mustang dyno) would break off a stock evo 8 turbo no matter the power level obtained through a virtual dyno. be careful what you wish for...i might just come and take your car!

 

Yeah I'm going to have to agree that things just dont seem right here. With the stock turbo I could understand if you maybe had some crazy engine build along with it but without it I can't see how this is at all possible.

One question I have is that is this an FQ400 possibly?....because from what I've been told they have different head work correct?

 

did you fail to read the dynosheets are all wrong? they point up at the end of every run that indicates everything is inaccurate.

 

 

This should get entertaining.

Just something to think about though, do you believe the stock injectors could actually flow the fuel to support 460 WHP?

That would put you in the sub 0.40 BSFC range. Sounds awesome. Not very realistic, but awesome none the less.