So i bought a 2006 Black Evo IX SE last may and i road race with it. I'm not used to cars with any sort of lag, this is the first Turbo'd car i have owned. I was wanting to Find parts/a setup that would make the lag on my car less. My quest is to make this the best Track car i can, but also let her still be usefull on weekend drives.

I was thining about buying all these bolt ons to hopefully help me... but hear in the last month i thought why not swap out for a turbo that will be around the same size as the stock one, but spools faster. (if there's sutch a thing)

Basicaly i was wonding what would be a better route, buying bolt ons or just a different turbo?

also, go light on the acronyms.

Thanks.

 

To get the power of an Evo with the size of a 2.0, you're going to need a big turbo, and that equals lag - just a fact of life. The Evo IX does a good job of hiding it with MIVEC and a quick spooling turbo, but you need to add more low end grunt if you want to hide the effects of turbo lag.

 

So what would i need to add more low end grunt? Turbo back Exaust?

I was looking at a Turbo on JSCspeed.com, The "Green" turbo. I wasnt quite sure thats what i was looking for...

http://www.jscspeed.com/evo/evo_base.html

 

If you want turbo upgrades you can go with Forced Performance's "Green" upgrade which is done to your stock turbo. I don't think the change in lag will be noticeable.

If you want to change the turbo I think the HKS 2835 should spool very close to the stock Evo 9 turbo and it will make more power. The Garrett 3071 is also a good choice for keeping the spool close to stock and making more power.

BUT - without touching your turbo, with bolt-ons and a good tune you can get a lot more power and any increase in lag time can be offset with MIVEC tuning.

 

You're gonna have lag in a tubo car that is a fact of life.

Mitsubishi did a very, very good job on their turbo, and it has been improved over the last 10 or so variations of Evolution. So to find a turbo that spools as fast but makes more power is difficult to do. The only thing I can recommend is you can do a ball bearing conversion that would potentially improve spool a couple hundred RPM I think.

The Evo Green spools slower than stock. By a good margin too.

Any GT30 turbo will spool even slower.

I don't recall seeing anyone running a GT28 turbo on an Evo so I wouldn't bother with that.

 

leave the turbo!!!! add cams, get a tune, this will help all around. secondly the problem is most likely you. if you keep the rpms up you will always have power, i see some guys just cant mentally do this , i'm not sure why.

 

Sorry for all the Nube questions... I realize that i'll have lag no matter what, but i was just hopeing that either i could make it even less noticeable, or even make it spool lower on the RPM range.

I also understand if i add power, it will make up for the lag.

Again, thanks for the advice and take'n time to help a very apparent nube.

 

I don't know the rules of road racing but assuming meth/alky injection is okay to have that'd be your best bet

alky injection
fp green 20g
cams
full 3" catless exhaust
ported and coated o2 housing
ported and coated exhaust manifold
ported and coated turbine housing
lower intercooler pipe
3" intercooler
and a tune

that's about as fast spooling stock like you can get and you should be upwards of 380 whp

 

Here are some ideas in general. Unless you get fairly exotic nothing is going to spool faster than the 16g in the same power/efficiency range. Gt28 maybe, but i'm not sure exactly how it stacks up to a 16g in terms of CFM/efficieny range. gt3071 no way.

1. free up back pressure (as open an exhast as you can stand)
2. Smaller NOT bigger turbo (evo 8, 9.8 turbo housing)
3. aggressive Ignition timing, aggressive low RPM AFRs
4. cams,gears (matched for quick spool)

If your really serious...
4. anti-lag (dump fuel, retard ignition)
5. small, strategic shots of no2
6. BBCHRA modified 16g (evo 400,Essex turbo, {both UK.})
7. NA v8

 

http://www.hksusa.com/products/?id=695

I guess HKS isn't too popular on the island?

 

Seriously though just get a nice 02 housing, and a free flowing downpipe/exhaust combo, an intercooler, and get tuned. Your tuner might be able to manipulate your MIVEC maps so that you make spool faster while yielding higher HP.

 

FP greens are BIGGER than the stock turbo = spools slower. From the OP it sounds like you are happy with the power, you just want it sooner in the RPM band.

Meth/alky would work as it will allow you to use a small turbo and push its efficiency range before detonation.

 

Garrett gt28 (tiny) is not an HKS gt28 (fairly large and slow spool).

HKS spec'd thier own turbo and randomly called it "gt28"

 

HKS turbo kits are crap. The manifolds are known to crack and they are too expensive.

Regarding the GT28.. find me a dyno sheet of someone using it on this board. I'd be legitemately interested to see the results.

 

FYI o2 will not improve spool, it will hurt it slightly. free flowing is good but if u want strong midrange its not cut and dry method. for example a 2.75 inch DP gives better low-mid then a full 3 inch DP. etc etc