First of all, I must give credit to Andrew at Dyno4mance, who made my experience absolutely 100% positive, despite being on the verge of a nightmare courtesy of some vendors. If only everyone was as transparent and professional as he. Rest assured that any effort on your part to do business with Dyno4mance is worth the trip.

Here's what I've got:

255lph
650cc
10.5t
HKS 272
AMS Lower IC Piping
Vishnu Gears
Vishnu Std Exhaust
Helix O2 Housing
Xede
Xedeflash
MR BOV

It gives just about 300whp on Dyno4mance's DD dyno on 93 oct. Now, I realize I am facing the efficiency limits of the turbo, but I am wondering what else I can do to maximize what I've got.

I've discussed this with Andrew, and among things considered are:

Cat Delete - 10-15whp at the expense of being 'naughty'
AMS IC - What can be gained here? 5-10whp possibly?
ARP Stud Kit - Insurance?

Anything I've missed?

 

ARPs are really need if you going to run over 25psi of boost.

I think your done with the stock turbo. 300whp on a DD dyno is nothing to snuff about and with a cat to boot. The Cat delete is the last thing you can do to max your set up.

And as far as IC well I could not see it giving you a 10 hp gain. Now for a 1K I could find somthing better to spend that money on.

 

That's pretty much seems to be the consensus. Don't get me wrong, the car runs like nobody's business.

The cat delete seems to be the obvious piece to the puzzle at this point. I'm wondering if I might see anything useful with the larger IC with less pressure drop. Anyone with such experience at this level?

Also, I am considering the addition of a tubular exhaust manifold - would really like to use one with equal length runners if possible. The SAS unit is the no-brainer value, but I don't know if this one or which (if any) of the others are equal length. Of course, fabricating a support bracket would be a necessity simply because with the absence of the factory O2 sensor housing, the original bracket won't fit, and I don't want a hanging turbo to crack the tubular manifold.

 

I'm stage 1+++ (stage 1.5 ) also. I think I'm going to do suspension things next like a Ohlins setup. I like the Stage 1+++ setup becasue it is so stock like. Has all the power out front, and feels like it came this way from the factory.

 

Manifolds are a hit or miss. 354whp on a dyno jet. Now about about water injections. My buddy Joe made 380whp and that's about a grand for the whole system. Hook up a toggle switch and your cooking. Also maybe getting that race tank from Vishnu and runing race gas. When you need the extra power it's there all the time.

I would hate to lose the stock turbos spool for a bigger turbo but that might be next on your short list.

 

you could also go with a smaller turbo like the GT2871R for a quicker spool and a bit more power up top. This turbo does a little more on pump gas than the stock turbo but really comes alive on race gas from what I understand.

 

Why not one of these ?
http://linux.forcedperformance.net/m...ode=Lancer_EVO

Better then stock spool up, more top end, more TQ, nice price.

well I'm fairly fixated on it anyway.. hehe

 

ok lets see,

Water injection kit will make your 93 run like 97 or even higher
bigger ic like AMS or injen or vishnu
I am sure you have cams right?

exhaust manifold will help alot too.

 

There is a guy in england that does a garret bb center on the stock turbo with 10.5housing and TI shaft and wheels. 400whp on a dyno jet is reachable with this upgrade and supporting mods with the stock IC.

EVO400 I think is the guys screen name

 

Since tubular headers and H20 were already mentioned there is one maybe two remaining things.

Headwork.
Hondata Intake Gasket - don't laugh it works or at least it did on my B18: http://www.hondata.com/heatshield.html

 

On a seperate note - did you get the car fixed?

 

True, great driveability and results, just a little $$

 

Your real bottleneck in the system is that cute little turbocharger. Headwork may get you a little more torque, but if you're looking at the high end of the powerband for gains, you need a bigger hairdryer.

The TME turbo won't get you any more horsepower as the compressor wheel's the same size as stock, although the 10.5 housing does get more midrange out of it.

More CFM, people. You've got plenty of spark and fuel, just need to work on the air.

 

exactly

 

Um, I already have it. This is what "10.5t" means in my mod list. Yes, it is nice.