Hopefully it will work to my advantage, hahn super 20g. Taking the turbine wheel getting it clipped, adding a billet 25g wheel and a td07 compressor housing. I'm hoping to reach 500whp with e85. It might be a stretch. I just wanted to take a different approach since everyone is either zzp, or waiting for efr. Tell me what u think

 

Come up with a different name lol. That is not s t67....a t67 is a ginormous turbo used commonly on singlt turbo supras. A t67 wouldnt even hardly spool on a cobalt

 

Do u know what u even talking about, look on greddy's website. What I'm building is a t67 td06h hot side and wheel, they use a different turbine wheel which is why I'm getting mine clipped to help spool and efficiency, cold side is a TD07 compressor housing with a 25g wheel. Plus its a billet wheel which wheel also help spool. It is what it is, essentially a t67. Sry I want to be different. And it will spool from 4k give or take to 7k thats a healthy powerband.

 

Your using the TD06H turbine wheel that comes in the Hahn Super 20G correct with a new 25 compressor wheel?

That would be known as a 25g, with the 25g compressor wheel and TD06H Turbine wheel.

But instead of having your TD06H wheel clipped, why not put a TD06H4 turbine wheel that is 11 blade (aka as a 11 blade TD06H) for more flow instead of using the TD06H 12 blade turbine clipped?

I just down sized from my TD06H-20g to a TD05H-20g in a TD06 compressor cover for even a fatter powerband. My RPM redline on my Summit wagon van was 7k, and the Td06H-20G was fully spooled about 3.8k. Now I will be looking at full spool at 3.3k to 7k rpm, now thats a fatass streetable power band.

To be honest I won't miss the TD06H-20g much at the boost level and RPM's I'm going to run it at 20-22 psi, with 7k rpm redline. If anything I would never use that big turbine to its full potential, so I hope you plan on boosting the hell out of that 25g to get the most out of it.

 

Plan on boosting the hell out of that thing to get any kind of effeciency out of it.

A regular TD06H-20g doesn't even start getting effecient till about 22 psi.

 

I was unaware of that turbine wheel, I haven't even seen that wheel as an upgrade or even an option. Now I'm curious to the the flow of the wheel u mentioned compared to the clipped td06h wheel. I just want to reach my goal or get close as possible and not have my turbo completely maxed out. Plus I'm trying to keep cost relatively cheap. Right now I'm looking at 300 machine work

My tune will be a 30psi.

 

That is one Hell of a power band, what size housing are u using. I'm on a 26psi tune and i know I'm maxing the stock turbo out, I'm just completey bored with it. I've done a **** ton of research Japan uses the 25g on lots of 2.0 liter engines, making a **** ton of power with wicked power bands. I'm just hoping I can do the same with the lnf.

 

I used g-pop shop for my balancing.

Although technically all Mitsubishi turbine/compressor wheels are balanced individually for assembly and don't need to be balanced by a machine unless your re-using parts, but better to be safe then sorry I say.

 

TD06 Compressor housing

7CM2 Exhaust housing

But my engine is a Mitsubishi 2.4L 4G64 engine also, that extra stroke helps out with spooling big time.

I believe (James) ChevyCobaltSS3 had mentioned to me once before about trying to do the exact same thing you are wanting to do with his Hahn Super 20g.

 

Awesome thats the shop who is doing all my work. What car is that engine in? Im gald to hear good things about that shop

 

1996 Eagle Summit Wagon AWD 5 speed n/a to turbo conversion using mainly 4G63 turbo parts. The thing weighs about the same as a Cobalt SS maybe even a little lighter.

http://www.cardomain.com/ride/324020...t-awd-wagon-3d

4G64 was also used in Expo/Vista/Eclipse/Galants (some overseas vehicles we never got), Mitsubishi Mighty Max (wide block 4G64 version) and only was ever made in a DOHC head 1 year (Galant), all other version are SOHC. Of course you can do a DOHC conversion with one of the 4G63 turbo motors DOHC heads that the Talon/Eclipse had, like i did.

As a matter of fact alot of DSM'ers do 4G64 swaps for the added stroke to run a bigger turbo with quicker spool up and throw there 4G63 DOHC head on there.

 

I was thinking that block sounded familiar, I was thinking dsm. Good luck on ur build, I follow the dsm forum like the 1g ecilpses, they make some power. Way to he different tho.

 

You could get the same power with a quicker spool out of the S256ET...just saying. But go for it if thats what you wanna do!

 

Before tonight I had never seen or even heard of one of these. I go to lunch break and wuddya know, there's one sitting in the parking lot at Walgreens.

 

Dom runs a T66 turbo in the supra.

 

Clipping doesn't help spool it simply moves the power band farther in the rpm range.

And a 25g will not spool anywhere near 4k, that's 20g territory.

HHRSSouth: i was almost ready to buy one of those summit van's couple years back, it had a 4g64 with a gt35r in it, too bad the guy sold it. It looked like an amazing sleeper.

 

um wat lol, a 20g with hans specs will spool before 3k with proper tuning

 

Sure a 20g will start building boost before 3k, but making full boost over 20psi it wont be anywhere near 3000rpm.

 

haha whatever you say

 

Why make a statement about a part,when I'm going to guess u don't even have a 20g. What im creating will have full boost at 4k. Compare it to something bigger for example the s256 for zzp is bigger in all aspects, has journal bearings I think and still makes peak boost around 4k. I'm just saying once I get it dyno then we will speak about spool efficiency and numbers. Like I said I'm going to be different, if it doesn't work then I will call zzp and hop on their nuts.

 

Actually the 25g is bigger, it has a 60mm inducer compared to a 56mm inducer on the s256. Good luck on getting it to hit full boost by 4000rpm, i'd use this decades technology not last decades.

 

I agree with you I think he's not going to hit full boost on that thing till around 4.5k-5k rpm on a 2.0L

The one nice thing about Mitsubishi based turbos is many parts are swappable to make different turbo's, rebuilds are cheap and they last forever.

No denying new technology is better though if you have the money for it.

 

Like I said I want to be different I'm not scared to try different things if it doesn't work then, I can easily go back stock or back to the 20g. I know zzp is a proven company, if every cobalt were the same than car tuning would be boring. I'm not knocking on anyone, just experimenting

 

GL.. experimenting = spending unnecessary $ . You ask for an opinion and that's mine with past experienced in being different/experimenting.. No hating..

 

What did u experiment with?