I am ready to start purchasing some bigger parts but can't swing fmic/turbo/haltech/exh. manifold/wastegate all at once. Can I just do the turbo, wastegate, and exhaust manifold? I would use a mbc set for 10psi to supercede flow restriction imposed by hi-flo cat.

Help, I'm ready to shop - can I run this a couple pieces at a time?

 

This might help...

 

Do the haltech and Exhaust first, from that pair, you can expect to gain somewhere around 70HP from standard

If you do the haltech first, then you have the fuel management side taken care of, but you will still have to re tune it for each mod, i suggest you just do the exhuast and haltech, then when you can affrod to do the rest in one go, do it

 

I agree 100%. The EMS will also give you datalogging of your engine operating parameters so you can tune your car without buying extra gauges.

Um, it looks to me like you have the exhaust covered with the Bonez and Greddy equipment.

BTW, what in the heck is a 90 GT-X?

 

japanese name for a T2...

87-88...GT-R

89-91...GT-X

 

Oh good, I was hoping that you didn't put toe steer eliminators on your 323.

So is it an actual RHD J-Spec, or do you just like the J-Spec designation?

Sorry to stray from the subject, but if you are into the J-Spec thing, I was wondering if you have ever seen a TII automatic transmission before?

 

since we have dipped off into JDM-land...........actually that is a common misconception. there were GT-X's in the 86-88 cars (yup there was a turbo 86.....all jap FCs are turbo) , as there were GT-R's in the 89-91 years. they are just differences in trim levels. you could actually get a turbo FC with 15in STEEL wheels as the base model. it has just over time become the norm for people to differentiate between the model change with the GT-R/X designation

 

actually yeah i bought a book in japan over the summer that has reviews of a lot of T2's since they came out in 85 i guess it was. there are quite a few reviews of auto T2's. i can't totally make out what they are saying, but from the numbers they were quite a bit slower. i remember one of them was 0-100km/hr (62mph) in like 8 seconds. which i guess is basically what a stock n/a 5speed would do. if you want i could scan some pages from the book

 

lol...this is ironic...i was JUST looking thru this japanese magazine and noticed that there were some FC's for sale with the 89+ body style, yet were named GT-R's. thanks for the info. i had always thought that GT-X simply meant 89-91...guess i was wrong hehe

 

All the cars we get here are either from japan or built in NZ to the japanese spec, all our T2's where built in japan and i HAVE NEVER come across a Series 4 (late 1985 to early 1988) that had GTX on the side, nor have i ever come acorss a Series 5 (late 1988 to early 1991) that had GTR on the side of it.

All the series 4's here are either GT-R or GT Limited, all the Series 5's are GT-X. then there is my Series 4, which simply has a "koni improved" badge there

 

I talked for a while with this guy that does tech support for the server software I manage, he lives in NZ. He seemed surprised to find out most the cars here are NA and 5spd, while everything over there is mostly turbo and automatics...weird stuff....

 

Sure, if it's not a lot of trouble, I would like to see some info. Judging from the other responses here, I would imagine that a lot of other people on the forum would like to see it, too.
What I'm most interested in are things like:
Was it a special AT, or the same thing as the NA AT?
What kind of starter does it use?
Does it bolt right up to any TII, or is the AT 13BT rear housing modified for the AT/starter like the 20B?
What are the propeller shaft dimensions?
What were the ratios of the tranny and rear?
If the rear ratio was a 3.909, then was it the NA rear, or a special TII rear?
Does it use the same mounts as the American-spec NA AT car?

Sooo... back to the original subject, I believe that the vote stands at 2-0 in favor of the EMS before the turbo.

 

oh yeah, and in response to the original topic.........get the haltech first. Ive been the oposite route. i had a T60-1 etc etc, and no haltech for a lil while....................trust me on this.........get the E6K FIRST. your motor will thank you

 

It's just a regular US '90 TII. I just like the GT-X designation.

Another question...if I get the Haltech first, can I raise my boost -superceding the flow restriction imposed by the cat, or would it be better to put in a racepipe and port the wastegate. (and if so, can I still raise boost with the Haltech?)
I'm wondering because I experimented one day with FCD and racepipe and boost would creep to 13psi in 3rd gear. That's why I still run the cat.

 

assuming you had the fuel to go with the increased boost theres no reason you cant. you are however limited to how much you can do with a stock turbo, and 13psi is really the highest id go with one unless you want to see what it looks like with its insides spun to death.

when you install the haltech though, id put in 720cc inj's all around until you upgrade the turbo etc. with the 720cc's youll have enough fuel for pretty much anything youd wanna do with a stock turbo etc

 

I don't think I want to go above 10-11psi with just the Haltech due to stock turbo inefficiency (from what I've read). Given that, wouldn't I be ok with 550 primaries and 720 secondaries instead of 720's all the way around?

By the way, thanks guys this info is fueling my desire for a good Haltech price.