1jz??????

Dejvid1785 · 09-21-2006, 03:19 PM

Does anybody what kind of transmission is used with the 1jz and what kind of turbos that engine has. I was also told that the 1jz gives you less issues with overheating than the 7m-gte. Has anyone done a 1jz swap into a NA body?

Isphius · 09-21-2006, 04:20 PM

Dont quote me on this, but i think the 1jz comes with the same r154 as the 7m, and a slightly tougher automatic. Someone correct me if im wrong. And overall it is a better stock motor than the 7m, But i beieve the 7m has a lot more parts available and is a lot cheaper. It is also 3 liters instead of 2.5 so you have a little more torque and power cause of that once there both modded. But the 1jz is supposed to not have any headgasket problems like the 7m, But i would still upgrade it anyway, as with any high boost motor.

Supra2NR · 09-21-2006, 04:56 PM

theyre almost identical engines
except for the fact that the 1jz came with twins
and i dont think it has the headgasket problem

but with the 1jz the aftermarket/part support isnt as strong as for the 7m
but when it all comes down to it, i think it depends on a person's preference

kwnate · 09-21-2006, 11:06 PM

It uses the same 5 speed (r-154) with a different bellhousing.

dcrusupra · 09-21-2006, 11:13 PM

Manual trans is an R154 like Nate and ISPHIUS said, and the auto tranny is the A340. The turbos are the CT12a.

Isphius · 09-22-2006, 02:07 AM

weezl didnt say anything! lol. And there not really identical...None of the parts are interchangeable and they dont even look the same lol. But there both straight 6 toyotas....thats the good part

Dejvid1785 · 09-22-2006, 02:26 AM

So they pretty much use the same drive shaft as the turbo supra since it is the same tranny. How hard is it to swap it over to an NA supra? Has anyone done it? Some guy at NOPI did it but it was a turbo supra to begin with. He told me it was pretty much plug n play is this true?

dcrusupra · 09-22-2006, 02:55 AM

Quote:

Originally Posted by Isphius

weezl didnt say anything! lol. And there not really identical...None of the parts are interchangeable and they dont even look the same lol. But there both straight 6 toyotas....thats the good part

O, haha. I was in a rush. Sorry. I edited the post. Lol. Gotta give credit where its due.

SCRAMJET · 09-23-2006, 03:20 PM

I've jammed one in an NA 1986.5. It is pretty much plug and play, except for the fact you need to change the front crossmember to suit the ijz.

Dejvid1785 · 09-23-2006, 10:35 PM

Are you kiddin me, there is no other major fabrications? What other problems did you run into? I'm really lookin forward to doin this swap, i need all the info i can get.

09-21-2006, 03:19 PM	#1
Dejvid1785 3" Exhaust Join Date: Aug 2005 Posts: 193	1jz?????? Does anybody what kind of transmission is used with the 1jz and what kind of turbos that engine has. I was also told that the 1jz gives you less issues with overheating than the 7m-gte. Has anyone done a 1jz swap into a NA body? __________________ 88 Targa: Exhaust, Headers, Intake

09-21-2006, 04:20 PM	#2
Isphius 500whp yet? Join Date: Nov 2005 Location: Long branch, NJ Posts: 1,006	Dont quote me on this, but i think the 1jz comes with the same r154 as the 7m, and a slightly tougher automatic. Someone correct me if im wrong. And overall it is a better stock motor than the 7m, But i beieve the 7m has a lot more parts available and is a lot cheaper. It is also 3 liters instead of 2.5 so you have a little more torque and power cause of that once there both modded. But the 1jz is supposed to not have any headgasket problems like the 7m, But i would still upgrade it anyway, as with any high boost motor. __________________ Yay the supra assistant is gone!!! WEEE!!

09-21-2006, 04:56 PM	#3
Supra2NR 1000whp postwhore Join Date: Apr 2006 Location: Chi-Town Posts: 1,643	theyre almost identical engines except for the fact that the 1jz came with twins and i dont think it has the headgasket problem but with the 1jz the aftermarket/part support isnt as strong as for the 7m but when it all comes down to it, i think it depends on a person's preference __________________ http://www.myspace.com/supra_2nr Into Bikes now,, apparently the supra couldnt kill me, so my zx6 might lol

09-21-2006, 11:06 PM	#4
kwnate SP58GT Join Date: Jul 2005 Location: USA Posts: 633	It uses the same 5 speed (r-154) with a different bellhousing. __________________ Nate

09-21-2006, 11:13 PM	#5
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	Manual trans is an R154 like Nate and ISPHIUS said, and the auto tranny is the A340. The turbos are the CT12a. __________________ New Rebuild My CarDomain

09-22-2006, 02:07 AM	#6
Isphius 500whp yet? Join Date: Nov 2005 Location: Long branch, NJ Posts: 1,006	weezl didnt say anything! lol. And there not really identical...None of the parts are interchangeable and they dont even look the same lol. But there both straight 6 toyotas....thats the good part __________________ Yay the supra assistant is gone!!! WEEE!!

09-22-2006, 02:26 AM	#7
Dejvid1785 3" Exhaust Join Date: Aug 2005 Posts: 193	So they pretty much use the same drive shaft as the turbo supra since it is the same tranny. How hard is it to swap it over to an NA supra? Has anyone done it? Some guy at NOPI did it but it was a turbo supra to begin with. He told me it was pretty much plug n play is this true? __________________ 88 Targa: Exhaust, Headers, Intake

09-23-2006, 03:20 PM	#9
SCRAMJET 3" Exhaust Join Date: Jul 2005 Location: perth west aussie Posts: 75	I've jammed one in an NA 1986.5. It is pretty much plug and play, except for the fact you need to change the front crossmember to suit the ijz.

09-23-2006, 10:35 PM	#10
Dejvid1785 3" Exhaust Join Date: Aug 2005 Posts: 193	Are you kiddin me, there is no other major fabrications? What other problems did you run into? I'm really lookin forward to doin this swap, i need all the info i can get. __________________ 88 Targa: Exhaust, Headers, Intake