Well for starters, I'm letting the guys at Project GEN have their way with my EVO since I have a week and a half off. I'm getting the Stage 2 power package (cylinder head work, throttle body porting as well as the intake manifold.. Also comes with both cams reground.. The cylinder head is off and in the shop (has been for 3 days now). I should get it in another day or so. I can't wait for the head to get installed to see what gains i get. I've called GT motorsports (the closest one to me) for use of their 4 wheel dyno as soon as i get done with this..

I'll post pix if anyone wants to see the cylinder head being removed from the engine bay..

 

What is the deal with reground cams? Do you know any specs on them? I would spend the extra money and install a set of Hks or Jun cams so you know that they are proven. Also regrinds arent always as reliable as brand new blanks or billet cams

 

i don't know the specs on them yet. i should know by the time i pick up the head etc tomorrow. Project GEN is guaranteeing at least a 60 hp gain if not more on this head package so I wouldn't knock it yet until i see it. They're also paying for an emissions test after a week with the head package installed.. said that this would still pass emissions. we'll see.

 

Not knocking, Interested to see how it does! 60 hp will sure be a heck of a difference from stock. Keep us posted. Are you installing head studs while the head is off?

 

Maybe a 60Hp difference total, but not from headwork alone. Buschur/AMS/Pruven's headwork increases flow approximately 20-25% and you will lose TQ.

Good luck and I'm interested to see your results.

 

You should get that guarantee in writing.

I am certainly very skeptical. The first thing I noted was the website is largely written in future tense (e.g. "We want to..."), with no mention of completed EVOs, dyno/track results, etc. Unless there is something missing, your car appears to be the guinea pig.

Speaking from my own 20+ years of personal experience, I wouldn't let anyone touch my cylinder head and/or regrind my valves unless they were able to demonstrate ample experience and competence with that specific setup, and had the hard data (flowbench and dyno prints) and references to back it. Also, there are potential longevity issues associated with regrinding valves and reworking valve seats.

I haven't seen any EVO that can demonstrate anywhere near a 60hp gain at that power level through head porting and TB porting (which by the way, hasn't shown much of anything at all). Actually, I haven't seen anything from head porting in this application that impresses me enough to even consider it, although I have seen stock heads deliver well over 500whp. YMMV, but I'm not putting my money on it. Good luck!

Just my $0.02.

 

I'm sure it will be. And yes I have ARP studs on standby waiting the return of the cylinder head. To say the least, I'm eager to have everything put together and put on the dyno. Today's the day (supposedly) my head gets back, as well as my clutch (they had a clutch made for me as part of the deal).

 

I did my head, Ported, Polished, +1mm SS valves, Springs, Ti retainers and resurfaced.
They airflow definitely increased but I got no where near 60HP. Maybe 10-15.
I got a total of 20Hp and 25 lb/ft (Dyno Dynamics All wheel Dyno) between the head work, removing balance shafts and getting injectors cleaned and balanced from RC eng..(of course tuning for the increased airflow and higher flowing injectors).
It is much less knock prone now (I assume due to the combustion chamber polishing).
I also did a "clean-up" porting job on the intake and exhaust manifolds.

 

Thanks. And they're saying the gains will be from the headwork, throttlebody, intake manifold porting and the cams. they are match porting my exhaust manifold as well. We'll see how it performs.

 

That's ok. The reason I even posted on EvoM is to hear other members' opinions and experiences. I'm eager to hear it. That's what they're claiming so we'll see. In the end, dyno results will really tell the tale. I'll be posting them on here regardless of the results.

 

make sure they dyno yor car with the same boost level as you did before. I understand they will have to do some tuning to dial in the new setup. Try to have them change the least amount of other things besides the parts they did

 

the only other thing i'm changing is that i'm getting a JDM MR BOV installed other than the clutch..

 

Head didn't get done today.. hopefully I'll have it by tomorrow...

 

Good luck cant wait to hear the results

 

porting the cylinder head is only for the domestic cars,... not for imports!