Boosting my GE

[TLDriver]

Well I been doing all the research on the car and getting my car ready for boost. Little run down on what I have done and plan on doing.

R154 swap with a clutch kit to support around 700lbs of tq (in the process)

On order: Water pump, thermostat, hoses, belts, light weight pulleys, cam pulleys, all the belts including timing, 1.3mm HG full kit, tensioners, aluminum radiator, IC piping of 3", IC 3.5" or 4" core and some other stuff.

I am thinking of sending my head to get redone when I am going to install all of this. I know it's not needed but I would hate to open her up again because I neglected to take a look at it now that I have the chance. I am going to be using a MAP ECU2 piggy back for my ecu controls.

What turbo will get me to my goal of 500-600hp? I would like to be closer to the 600hp, but it's not a have to. Any suggestions? or suggestions on what to look for? T.I.A.

[ForcedTorque]

Wow!

It sounds like you aren't particularly ready for a 600HP build. Not trying to flame you, but guessing at what size head gasket to use, if needed at all, isn't quite displaying the readiness for your plans.

[BorHor]

For higher horsepower that you are looking for I would look in to AEM EMS over MAP ECU.

[TLDriver]

Wow!

It sounds like you aren't particularly ready for a 600HP build. Not trying to flame you, but guessing at what size head gasket to use, if needed at all, isn't quite displaying the readiness for your plans.
Correct with that HG I am going to be going for about 400-450 hp max while I still drive it on the road. Once I upgrade my brakes, suspension, and rear end to handle the rest of the power I will also swap out the HG to a 2mm maybe 2.5mm
For higher horsepower that you are looking for I would look in to AEM EMS over MAP ECU.
I did look into a EMS and I was refrence back to the mapecu2. I know the EMS will be able to control more then the MAPECU2 but with my max hp goals I wont "need" the extra controls. I would like the extra features but I ask myself will I ever use them and I still don't really know if I ever will be up there in that hp range.

[ForcedTorque]

You should do a little more research on head gasket thickness. Thickness has nothing to do with the power you are shooting for. It is about keeping your compression where you need it. You calculate your thickness according to how much material was removed from the head and block added to the thickness of the stock gasket.

The "if" part of my comment, had to do with you saying if it needed to be done at all. For 600hp, it definitely needs a MHG, so it will need to be done, and to specific RA values. At the 400hp level, you could get away with a good stock gasket, but I wouldn't count on reliability. You sound like you already plan on a MHG somewhere along the way.

From what I have read, a piggyback system at the 600hp is not a good idea. That is pushing close to 3 times the HP that the stock ECU was designed for.

600 is a lofty goal, and I wish you luck getting there. Have you settled on a turbo to get you there?

[alloyguitar]

I agree with forcedtorque. Piggyback = not a very good idea.

Granted, the learning curve with EMS is HUGE and the cost is much more significant, but I usually find it to be a good idea to over-engineer everything. Just because it's worked in the past doesn't mean it's a good idea.

...annnnnnnd +1 on MHG as well. The stock headgasket (or any stock material one) isn't going to last very long with your horsepower goals.

I didn't see a mention of fuel system at all in your setup. Specifically, injectors, boost referenced afpr, and fuel pump(s).

Any thoughts in those areas?

[s383mmber1]

The GE piston rings react VERY well to boost!

Good luck! :)

[alloyguitar]

lol.

[AwAis1JZ]

I'd say u should just go with a 1JZ-GTE setup and work ur way from there!

[TLDriver]

I did run the idea of going with a 1jz or 1.5jz but I have always came back on the NA-T route because I have an extra 2jz-ge block and had access to some parts for it. I am going to be redoing the internals on my spare block from a gte. Fuel I will run a mk4 fuel pump, high flow ge fuel rail and 720cc injectors. With a 2mm hg I should be running a cpr of 8.5:1 ish (I will figure it out exact when the time arrives) The closer to do the project the more and more I am reading on turbos and also the MAPECU2 vs EMS. I still have my thoughts out in the air with the turbo and also with electronics.

[SuicideSuprA70]

To comment on the turbo, i like my MP-T70

Being the car that i own now its making over that power and at the turbos peak and holding GREAT!

Obvious note but make sure you have a good tune and the T70 is great!

[shaeff]

I'd say u should just go with a 1JZ-GTE setup and work ur way from there!

I hate comments like this, especially with no explanation as to why. You can see he needs to do more research, and yet you jump in telling him to swap to a motor that you can only get parts from Japan... That makes perfect sense... :nono:

I'd rather have a boosted 2j than 1j. There is no replacement for displacement.

[alloyguitar]

I hate comments like this, especially with no explanation as to why. You can see he needs to do more research, and yet you jump in telling him to swap to a motor that you can only get parts from Japan... That makes perfect sense... :nono:

I'd rather have a boosted 2j than 1j. There is no replacement for displacement.

I agree. That post was a bit out of left field. I never understood why someone would swap in a smaller motor, anyway.

[SuicideSuprA70]

I agree. That post was a bit out of left field. I never understood why someone would swap in a smaller motor, anyway.

Although the displacement is lost, you do gain higher rev capability. My personal preference would be why not add BOTH?

1.5jz! High revs WITH 3L. :icon_evil Pretty nice combination.

I do love my 2j though.:naughty:

[alloyguitar]

Okay, i have nothing to say to that. It's a winner in my book.

;-)

[SuicideSuprA70]

Okay, i have nothing to say to that. It's a winner in my book.

;-)

I still love the 1jz though, better head design agreed?

[alloyguitar]

I still love the 1jz though, better head design agreed?

Yep. The whole sourcing-jdm-parts thing always sucks, though. A damn bolt takes you 3 weeks or more to get ahold of, not to mention that you have to take out a second mortgage on your house to pay for it.

...but yes, a better design in my book.

[IJ.]

I still love the 1jz though, better head design agreed?

no....

Someone posted actual flow bench figures on SF awhile back and it doesn't support your argument other than velocity is up on the 1J ports so it "may" be a slightly better responding engine at lower rpm.

[SuicideSuprA70]

no....

Someone posted actual flow bench figures on SF awhile back and it doesn't support your argument other than velocity is up on the 1J ports so it "may" be a slightly better responding engine at lower rpm.

I stand corrected. Failure :cry: Well, my apology's, my sources were incorrect.

[IJ.]

No probs it's just one of those Supra Myths that pops up now and again and probably goes back to someone did the 1.5Jz thing and gained some throttle/engine response and thought it was "better" ;)

[alloyguitar]

Well, slightly better is still better, right?

[IJ.]

Define better?

If you're going for outright power then no, if you want the low end and midrange response yes.... all depends on your goals.

[SuicideSuprA70]

No probs it's just one of those Supra Myths that pops up now and again and probably goes back to someone did the 1.5Jz thing and gained some throttle/engine response and thought it was "better" ;)

Yea, ive been anxious to see how Jeff (boost lee's) is. He's a close friend so im excited to see how it responds.

Thanks for the correction though i was unaware!

[IJ.]

No probs at all there's always something to learn :)

[SuicideSuprA70]

No probs at all there's always something to learn :)

Very very true, thats part of the fun!

[TLDriver]

Thanks for the suggestions. I am still reading and researching what else I need to do it correctly. Any other suggestions on the build I would appreciate it thanks.

[juhanis]

the ge can do 400hp on a daily basis, mine is 350-400 at 10psi i'm sure. but then again, i'm running water injection to keep detonation down. i'm noticing anything much higher than this boost with my stock head gasket and t04e 57trim i am probably going to need a thicker head gasket. any more boost than 1bar i would say requires some good tuning if you're on pump gas.

[TLDriver]

After doing a lot of reading I am still going to go with the GE block but I am not too sure about the GE head or 1jz-gte or 2jz-gte head. From what I read the GE flows better then the GE but the GTE heads have more options on cams. Once again I also have 2 complete GE's hahaha.

[turbodriz]

I am doing straight 2jzge. I heard the same about the ge head. I sticking with it is because it allows me to use my 7m electroincs. It cuts out on all the big wiring issues. As far as the block , they are the same minus pistons and oil squirters. If u want oil squirters I heard that the mark is in the casting so it just requires drilling. This is what I was told. As far as cams zazzn. He has a group buy on cams. I really don't know what ur looking for as cams but he has mild to aggressive. If ur serious he can have a cam custom made for u.

[landspeedrich]

I am doing straight 2jzge. I heard the same about the ge head. I sticking with it is because it allows me to use my 7m electroincs. It cuts out on all the big wiring issues. As far as the block , they are the same minus pistons and oil squirters. If u want oil squirters I heard that the mark is in the casting so it just requires drilling. This is what I was told. As far as cams zazzn. He has a group buy on cams. I really don't know what ur looking for as cams but he has mild to aggressive. If ur serious he can have a cam custom made for u.

Could you fill me in on whats zazzn???Thanks RS

[turbodriz]

Zazzn is a member of the site. He does group buy on brian crower cams. There is one going on right know.

[landspeedrich]

Zazzn is a member of the site. He does group buy on brian crower cams. There is one going on right know.

Ahh ...Gotcha,thanks ! RS