Engine swap?? - Toyota Nation Forum : Toyota Car and Truck Forums

1ofAkinfRacing · 02-23-2005, 10:45 PM

Would a 2jz engine fit in a 91 supra? Would the 1jz be a cheaper/better swap? Or should I just keep the 7m and build that up? I am trying to build a drag car for the track like a weekend warrior.

Dr Tweak · 02-24-2005, 02:28 AM

They will both fit but it's difficult to plumb two turbos, so it's best to just go with one which most people do anyway. I think it's the 2ZJ that's twin turbo...

Wolfie · 02-24-2005, 06:27 AM

I looked into this and everyone whom has done this specific engine swap said to put a 2JZ in you have to do a single turbo conversion...I'm currently getting an import place to look for a 1JZ mkIII supra, these are not common and i'm pretty sure JDM only (in other words import models).

Jeeves · 02-24-2005, 07:03 PM

To do a 1JZ swap, you'd need a Front clip w/a 1JZ. That's about $3000-$5200.

So, if you want to pay $3k for 60hp, go for it.

Otherwise, learn about the 7M and make massive power outta it. Yes, the JZ Engines make some nice power, but that doesn't mean they're God's gift to the earth. I personally think they're overhyped.

slacker · 03-05-2005, 02:13 PM

so ... 2JZ wont fit ? I'm currently lookin' to do this into a /87 ,and just started searching for info .. any help app.

***bgrieger*** · 03-05-2005, 07:11 PM

2J will fit, with the help of a sledge hammer. The engine sits too close to the firewall, and needs to be clearanced by a couple of inches. The getrag box needs similar work to the tranny tunnel, and then the shifter is located about 6 inches back from stock.

To fit it then, you need: a large sledge hammer, a 1J bell housing (so you can use the R154) and a hell of a lot of custom wiring. Only been done a couple of times. Stick to the 7M. More torque, can be built to do anything the 2J can...and probably will cost you as much to build as a used 2J stocker anyhow.

Wolfie · 03-05-2005, 09:27 PM

It's costing me $6k to do a 2JZ swap...it will fit, with some alterations. I'll have my swap done by December hopefully

Jeeves · 03-06-2005, 12:37 AM

If someone can explain to me why you'd do either of these swaps....

The only reason I can see the 2jz as being worthwhile is just due to the large volume of available upgrades for it... the 1JZ seems pointless to me. Expensive to get it, too little gain, and replacement parts are a paint to come by in the US since it was never available here.

slacker · 03-06-2005, 10:11 AM

Quote:

Originally Posted by Wolfie

It's costing me $6k to do a 2JZ swap...it will fit, with some alterations. I'll have my swap done by December hopefully

I'd be interested in seeing some pics , and info if you got any .....

Quote:

Originally Posted by Jeeves

If someone can explain to me why you'd do either of these swaps....

kuz , we can

..... Thats what "custom" is all about . I've got about 40G to dump into the car , but thats for everything .

***bgrieger*** · 03-06-2005, 10:29 AM

Gotta be the unique factor. Seems a waste to downgrade blocks and upgrade internals in either the 1j or the 2j case, but if going in a straight line is what floats your boat, the 2j is the slightly better choice for drag racing over the 7M. More bling to get the teenie boppers stiff at the shows if that's the goal too.

***Ne0z31*** · 03-06-2005, 05:20 PM

dont get me wrong, the 7m is an amazing engine... but i have yet to see one with above 800hp... in fact 600 as i recall is pushin it... supras are supposed to be dyno queens

repinS · 03-06-2005, 05:27 PM

Quote:

Originally Posted by bgrieger

More bling to get the teenie boppers stiff at the shows if that's the goal too.

Does it have NOS?!

A 1JZ/2JZ-GTE swap would only be justified, IMO, if the original engine is a old and decrepid (sp?) GE of sorts. Or if it's a Cressida. Otherwise, a built and maintained 7M-GTE is just fine.

***bgrieger*** · 03-06-2005, 06:11 PM

You know repinS I just got that out of my head...thanks for reminding me...

There were a couple of 7M's over 1000 back in the day. HKS owned them. Just like the MKIV crowd, there's a price to pay to get into that neighborhood. Sure you've heard of 2J's getting 1000+, but it's the same group of 4-5 sponsored cars from shops or IHRA teams in the states, or a couple of rich dudes who picked up an MKIV to see what they could do. If you invest in the 7M, it'll do the same thing. Displacement is the ultimate determinant of power, and they have the same displacement. 7M some gets some more torque, 2j a little more HP.

Bob

Wolfie · 03-07-2005, 04:24 AM

Quote:

Originally Posted by slacker

I'd be interested in seeing some pics , and info if you got any .....

I havnt got any info other then me and my mechanic are getting in a front cut 2JZ, single turbo conversion with a T04 turbo, custom made FMIC and a few other goodies to begin with. Sure the 7M is a good engine but I dont want the worry with the HG and mods on a 2JZ are alot easier for the intended application.

When more is set and planned I'll let you guys know...maybe pictures of during the conversion of what actually needs doing?