1jz!!

Poptart · 01-25-2007, 04:48 AM

Hey, I have a 1990 Toyota Supra (Automatic)

I was wondering a quick question, with a 1 JZ engine...

Is it a direct drop in? Or what do you have to change out...from where I hear...it would just go right in...and you hook everything up...

So so...new ECU and all that...

I found a deal...sounds good, engine is clean, 800 dollars .. 1JZ Twin Turbo, 30-40k miles...Comes with ECU...Tranny (Auto) and all that good stuff...

CUT HARNESS...can I use my OLD HARNESS? Or do I need to upgrade? I don't know for sure..please let me know...

That is all the questions I have for now, if somebody could please take the time to answer them...

Thanks,
Ken

suprra_girl · 01-25-2007, 05:55 AM

you need the 1jz wiring harness as it is a

1jz

and you have a

7m

and they are two different engines

source a wiring harness and it will be plug n go

don't forget to get the alloy engine mount brackets for the engine also as they differ between the two engines

Poptart · 01-25-2007, 08:54 PM

Ebay has no wiring harness .. meh...

Where else can I get them with the mounting brackets?

suprra_girl · 01-25-2007, 09:10 PM

k... in theory

the 90+ 7mgte ecu will have the same type of plugs as a 1jz ecu does

cut them from a 90+ 7m harness and rewire onto your 1jz harness as it will need extending if you are lhd anyway. check out www.1jz-gte.us for ecu pin info.

when you go to buy the engine just ask them if it has the engine mount brackets. if not i guess you'll have to post in wanted forums and search ebay etc

01-25-2007, 04:48 AM	#1
Poptart Intake Join Date: Jun 2006 Location: Iowa Posts: 47	1jz!! Hey, I have a 1990 Toyota Supra (Automatic) I was wondering a quick question, with a 1 JZ engine... Is it a direct drop in? Or what do you have to change out...from where I hear...it would just go right in...and you hook everything up... So so...new ECU and all that... I found a deal...sounds good, engine is clean, 800 dollars .. 1JZ Twin Turbo, 30-40k miles...Comes with ECU...Tranny (Auto) and all that good stuff... CUT HARNESS...can I use my OLD HARNESS? Or do I need to upgrade? I don't know for sure..please let me know... That is all the questions I have for now, if somebody could please take the time to answer them... Thanks, Ken __________________ 1990 Toyota Supra (Automatic) Non-Turbo Stock.. Dropping 1JZ-GE Twin Turbo --- 300 HP..goal is 500hp.. Got any parts? I buy them!

01-25-2007, 05:55 AM	#2
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	you need the 1jz wiring harness as it is a 1jz and you have a 7m and they are two different engines source a wiring harness and it will be plug n go don't forget to get the alloy engine mount brackets for the engine also as they differ between the two engines __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

01-25-2007, 08:54 PM	#3
Poptart Intake Join Date: Jun 2006 Location: Iowa Posts: 47	Ebay has no wiring harness .. meh... Where else can I get them with the mounting brackets? __________________ 1990 Toyota Supra (Automatic) Non-Turbo Stock.. Dropping 1JZ-GE Twin Turbo --- 300 HP..goal is 500hp.. Got any parts? I buy them!

01-25-2007, 09:10 PM	#4
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	k... in theory the 90+ 7mgte ecu will have the same type of plugs as a 1jz ecu does cut them from a 90+ 7m harness and rewire onto your 1jz harness as it will need extending if you are lhd anyway. check out www.1jz-gte.us for ecu pin info. when you go to buy the engine just ask them if it has the engine mount brackets. if not i guess you'll have to post in wanted forums and search ebay etc __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!