Room constraints for t25 turbo?

[sorrowfulkiller]

Alright guys, I'll probably do some type of t3 turbo then. From what both of you are saying it would be a better way of doing it. More room, less issues. the only thing is.... I'm not going with that JGS manifold... log style = blah

[sorrowfulkiller]

Freaken high quality manifold of your choice, and a 50 trim .48 ar t3/t4 with a stage 3 wheel. Along with all the other crap you need for a performance car and, your car will be exactly what you want. I would go with 850cc size injectors for your build, little easier to tune for and you wont need 1000s. Heck you wont need 850's lol, but since your going AEM might as well.

Everything else on your list is fine.

I'll be going with the AMS Fuel system, so if I want to upgrade to 1000cc injectors its the same price as 890cc's however I'll probably just go with 890's for sake of tuning.

[sorrowfulkiller]

JGS manifold/turbo/downpipe combo matched with a CXRacing FMIC kit and 72lb injectors. The exhaust system is always RS*R for me...pricey but the best usually is. The turbo needs to be the T3/TO4E with the .48AR hotside so you won't have any lag. A real good friend of mine and the owner of NICO have this exact turbo and his first gear is useless because he's making that much power just after throttle tip at WOT. He's running 275's out back...I ran the same turbo aside except I used the .63AR hotside. The lag was there compared to a car that comes with a really small turbo from the factory. I'd hit full boost (20psi) shortly after 3k depending on gear and load. Which is nothing comapred to my Skyline I used to have. That pig had the TO4 with a .81AR hotside on the that poor little RB20 Then again I did install the T4 on the KA as well...which was even worse. Atleast the RB20 could spin to 8500.

BTW, I'm borderline GENIUS with subinjection...like alcohol/meth/water etc. For those moments when you wanna run 10-15 psi more

lmfao, 3k full boost is perfect, no need for sub 3k full boost wow, that car must be scary to drive!!!

What kind of injection system do you use? snow? AEM? or someone else? What about a failsafe? I would like to eventually use a 50/50 water/meth setup just for the simple fact that the internals look brand new after you take apart the engine because it cleans the internals xD... personally I don't think I'll really need to use water/meth injection with e85 as I don't think it'd make much a difference. However it would be a great idea if I have a pump gas tune if I can't find e85 while I'm driving long distances.
Modified by sorrowfulkiller at 6:16 PM 6/10/2009

[DevilMB3017]

What's wrong with a log manifold? You see a little less topend, but your response is quicker. I thought you wanted more response? You're talking all over the place and contradicting yourself.

With the JGS Kit, T3/O4E .48AR, eBay FMIC, blow-off valve, whatever exhaust, 740 Denso/Sard Injectors, cheap FPR setup (Enjuku Racing has a cheap one with Aeromotive parts), stock rail/intake, Z32 MAF, and the AEM standalone...You're looking at 350rwhp, with an awesome torque curve and a fraction of the amount of work you seem to want to do.

[sorrowfulkiller]

What's wrong with a log manifold? You see a little less topend, but your response is quicker. I thought you wanted more response? You're talking all over the place and contradicting yourself.

With the JGS Kit, T3/O4E .48AR, eBay FMIC, blow-off valve, whatever exhaust, 740 Denso/Sard Injectors, cheap FPR setup (Enjuku Racing has a cheap one with Aeromotive parts), stock rail/intake, Z32 MAF, and the AEM standalone...You're looking at 350rwhp, with an awesome torque curve and a fraction of the amount of work you seem to want to do.

Its not efficient, simple as that. Its great for a beginner setup yeah but if you want to eventually make a lot of power you have to swap manifolds. Like I said full boost at 3k is perfectly fine... I don't find that laggy at all I actually think that that's about perfect, no reason to have full boost any sooner for me anyways.

[DevilMB3017]

Its not efficient, simple as that. Its great for a beginner setup yeah but if you want to eventually make a lot of power you have to swap manifolds. Like I said full boost at 3k is perfectly fine... I don't find that laggy at all I actually think that that's about perfect, no reason to have full boost any sooner for me anyways.

But it does offer quicker response - which you said you wanted.

And you said you only want ~300rwhp, no? Which makes a log manifold plenty for you, with quick response.

I'm not 100% you know what you want to do with your car yet... Is this a street car? Auto-x? Drifting? Drag? The 240 is a versatile platform, so you have many options...And each style of driving will merit a different setup.

[D-UNIT]

this might help u.

http://www.atpturbo.com/Mercha...e=GTH

might.

[sorrowfulkiller]

But it does offer quicker response - which you said you wanted.

And you said you only want ~300rwhp, no? Which makes a log manifold plenty for you, with quick response.

I'm not 100% you know what you want to do with your car yet... Is this a street car? Auto-x? Drifting? Drag? The 240 is a versatile platform, so you have many options...And each style of driving will merit a different setup.

I should have said I want quick transient response now that i think about it, and I want the ability to have 325-375 rwhp. I will be using the car as a weekend "fun" car, so I'm trying to make it more for street/road race but with the ability to drift it if I want.

A log manifold like you said would hinder top end... which is something I don't want to hinder much. I want the car to pick up quickly, but I don't want to burn the tires at every light either.

[sorrowfulkiller]

this might help u.

http://www.atpturbo.com/Mercha...e=GTH

might.

that's exactly what I was talking about earlier in this thread

[eazye2000]

I figured it's about time for me to put my worthless $.02 into this thread.

Nothing wrong with running a T2 turbine on the KA. It is not the best idea for a track car, but definitely do-able for a daily that may see a few spirited runs.And as said before, it's not recommended for anything over 'X' amount of power, but it's fine for a low boost setup that's reliable and fun to drive on the street.With 'recommended' being the key word, you could be like me and Sunny and go against the grain...

I personally got the 'custom' made T2 turbine option for the GT3076R. I got the .86ar turbine and it's been machined out as large as it can be to fit the much larger than 'stock' T25 exhaust wheel.

Compare that picture with this one below. This is my old GT2860RS with the same .86ar turbine housing.

Now, that's not really an argument since most will say 'its the T2 flange that chokes out the motor.Very true in the fact that ANY and ALL gas has to go through that flange. Whether it's being given to the turbine to spool the turbo, or to be wasted out the internal wastegate. Large amounts of pressure build up in the manifold/header and you get lots of gas reversion in the cylinders.

This, for me, was remedied by welding on an external wastegate to my manifold. It's at the back of the collector so that the first two cyliders fire directly at the port which I had hoped in making it more efficient.

The wastegate source tube was TIG welded, but I was in a rush to get it done, so the exhaust/outlet side of the wastegate was MIG/Flux cored. Ugly, indeed.And the intake setup was temporary in that pic since I wanted to drive it before the sun went down.

With that all said, one can now put into perspective that the only gas that goes through the T2 flange is going to spool the turbo. No more backpressure to be had in the manifold. It's now wasted with the intended external wastegate.

I haven't run into any issues with the setup other than my engine bay is now cluttered, and looks like poo'. I still have power steering and the A/C works beautifully. I'm still not sure on the spool of the thing. I wanna say I get 10psi around 2800rpm or so.

I just totally lost track of where I was going with all this. I hope this helps clear a little bit up for you guys.I run 740cc injectors, Z32 MAF, self chipped and tuned ECU. I'm guessing by my trap speeds and weight of car I'm just over 400whp at 19ish PSI. Never been to a dyno. But my ET's and weight suggest about 350-360whp.

Here are some track video's for fun. Best ET was a 12.2 at 119mph but it's not on video. But you get the idea.Post up some thoughts or concerns. I'm the T2 guru for the most part. I love them. Particularly because my motor is only built for 500hp and I don't want to put a 35R on it and be tempted by the boost bug and pop her. lol

Enjoy girls and boys.

http://www.youtube.com/user/eazye4you

[sorrowfulkiller]

ha ha, that true it is an ugly setup, but it works so w/e right?

That exhaust housing machine work is freaking ridiculous O_O

[eazye2000]

Why is it that my post usually ends a thread? lol

[D-UNIT]

^^time to update someones sig pic. j/k. How is that turbo on the street. what a/r did you choose. how is the clearance i.e. (block to turbo / down pipe to steering shaft). I'm think about buying this turbo w/ the ext w.g. housing option that I suggested to sorrowfulkiller earlier.