Bean

iTrader: (1)

anyone know about a SupraTT head swap on a 2jz-ge motor?

i need details on the headgasket that i could use to drop the compression to 8.5:1, etc...
would i also need the intake manifold?

thx

Richie

Interesting question.
I would like to know more about this too.

Bean

iTrader: (1)

i've also read into it some more...

I'm wondering if the throttle body/TPS from the TT intake manifold is compatible or the same as the 2jz-ge... just so the ECU knows how much air its pushing ... then later to upgrade to VPC and 550s

i've found remanufactured head places sell the gte head but i'm pretty sure its bare casting without the cams/valves and valvesprings

Richie

Any one one got any more info on this??

Ear Candy

Bean,

The 2jz-gte (supra tt motor) has completely different jackets then the 2tz-ge (na supra & lexus) engine, so she will not work with the GE short block.

The intake is completely different too, oval for the gte vs circular for the ge,

So basically you can’t swap much from these 2 motors.

You best bet if you are going to keep the ge head, is to get a custom intake manifold, so that is will resemble that of the gte. This way you can have an fmic, without having to double back the ic piping to get it back to the intake manifold.

Check out this link,
http://www.mkiv.com/readersrides/rea...es/dave_henry/

The intake manifold is PHR, (discontinued production) the throttle body is now like that of the gte motor.

Bean

iTrader: (1)

well damn that sucks

i found a gte head with cams and valves in really good condition for $450

DaveH

The throttle body is the stock 2jzge, it's just mounted upside down.

Dave H.
93na-t
10.86@126

SC300T

Wow, that sounds like the ticket... Think Larry could make one of these?

BTW when did you get into the 10s? You see that nice 10.17@150 run by SW of turboimports yet?

http://www.cs.utexas.edu/~dat/mpgs/SW-ThirdPass.wmv

DaveH

I'm sure SP could probably make one. Bullish Racing is making a similar one for the TT, so maybe they could make one for the n/a?

I ran a 10.99 earlier this summer, then got the 10.86 a couple weeks ago.

SW run is wild, that car is insane! 150mph traps are just incredible......

Dave H.
93na-t
10.86@126

SC300TURBO

iTrader: (2)

the head will bolt to the block..the jackets are the same..i dont know where that false info came from......i dont know about the ECU working though...i think you would need supra tt electronics...but it will bolt to a na block...i have a supra tt block in my car...so i know it works........i just dont know what other headaches will accompany it<electronics...>

would be very easy to do a toyomoto head gasket and lower compression...toyomoto can also do a custom intake but the stock 2jzge manifold flows alot of air......no need to redo it unless your going for like 700rwhp....its runners and end tank are bigger than the supra tt motor

and i have a front mount intercooler.....was easier to make piping for a front mount IC than to make a new intake manifold...
also in turbo magazine youll see an is300 making 606rwhp on the stock intake manifold...Jeff

Ear Candy

I apologize for the false info. I was informed a while back by someone that the heads of the gte and the ge where different and could not be swapped. The things you think you learned and keep relearning.

Here is some recycled info I did post, and where some of it came from.

http://www.supraforums.com/supravb/s...ht=lexus+sc400


One question, there are differences b/w the blocks, but in essence when it comes to power holding which one is better and why? Everyone says the gte block is stronger, but does anyone really know, by estimated guess the diff in power handling capabilities, if there really are any?

Thanks,

SC300TURBO

iTrader: (2)

the heads are different but they do bolt up to the block the same...
differance in blocks-GTE has oil squirters for the wrist pins and has lower compression pistons...
GE- has higher compression pistons and no oil squirters...

they both can handle very high hp ..i.e. over 600 rear wheel just with a GE block you need to add a toyomoto head gasket to lower compression....i had this set up for a long time till an exploded pressure plate trashed my stock block.......so now i have a tt block because i found a deal on a motor and 6spd...so i kept the GE head and used a tt block......so everyone that says a tt block is stronger is wrong...but it is more suited to coiling because of the oil injectors and lower compression from factoy...so it is better in the long run but not exactly stronger.....Jeff

SC300T

In reading that thread, someone mentioned limited slip... My 92 SC300 seems to have and UNlimited slip The LSD was an option on certain years of the N/A Supra, but not the SC300 to my knowledge.

SC300TURBO

iTrader: (2)

sc300t.....two words......six speed

Bean

iTrader: (1)

yes but what were the gear ratios of those N/A supras that had LSD?