haha...getting more an more ef power out there! i just ordered an ef2 and now i hope to pick up a nice map header like yours! is the ported stock
only good up to 400-450? since the ef2 has good spooling, should i pick a full header that sacrafies a bit spooling but makes more on the top end, guys?

 

Evan is a stand up guy you will not be disappointed by the tune.

 

Ported stock works at many power levels ive made 527 on the stock block with it, and plan to crack 600 with it this summer, I dought you will gain a ton with the manifold but they sure are pretty, make your evo sound cool, and if your ever going to change it now is the time.

 

Ill have my final sheet shortly. Virtual dyno said 573whp but Aaron suspects Im at just over 600whp right now at 32psi based off the logs

 

Sweet excited to see this

 

Thanks for the tips. If i do want to go for a mani, what do you think of the MAP short runner mani? With a MAP mani, i'll have a complete MAP turbo system: header, turbo, dump and dp

 

IIRC, you already have the PPI extreme ported/coated exhaust manifold. If you do anything, get the MAP short-runner since it's a nice balance between response and flow; the long-runner may be a tad overkill for the EF2 since it's designed as a top-end manifold while the EF2 is not a top-end turbo, rather a more balanced and responsive turbo.

 

Why even waste the money by spending it on another exhaust manifold as the ported stocker should be plenty with the EF2 turbo? PPI does great work and since you already have it, why not just see where you are after your build is complete before you identify any flaws in the exhaust manifold you already have. I do know that MAP did some tests on their short runner and long runner exhaust manifolds in comparison to the unported and ported stocker that had some nice results.

 

any link to the map's result? short runner > ported stock?

 

Ask and you shall receive...

https://www.evolutionm.net/forums/ev...o-results.html

 

This thread has not had any activity lately. Are there no more EF turbos floating around? I have to tip my hat to MAPerformance family for helping me through the process to step up to the EF4. Thanks fellahs.

 

Ok I just whanted to update I'm going back to Cali shi*y 91 octain this upcoming fri 3rd I was running out of fuel at 424 on a mustang dyno @30psi and it starts to cut out on me at about 6k in 4th really annoying so can't afford to get an inline 255 and bigger injectors for now so getin it tuned on 91 and staying there for about a half a year till I could save some money and upgrade my fuel system and maybe get my manifolds and tb ported at the same time also whant to use the car for snow boarding and there is no e85 in Tahoe and don't want to bother worrying about running out of gas so can't wait to see what it will do on 91 @ 25 psi but eventually I will push it all the way on e85

 

Thanks for the update.

 

My new EF4 and shortblock is getting installed in a few weeks.

 

I'll have more details soon, but I was able to squeeze a little more power out of my setup. I'm waiting for Cobb to get the new charts online and for some additional data from MAP. I've been rocking the EF2X for over 5k miles now and zero issues to report.

Another guy down here just got tuned on his EF2X and put down respectable numbers on ****ty Arkansas 91-octane, I'll let him be the one to elaborate on that though. Then another local has his new EF2X sitting on his desk at work just waiting for the chance to install it. Let's see, what else do I know...oh, my buddy will be upgrading his 2.3L IX from the EF3 to the EF4 sometime this spring.