An aqaintance is considering getting rid of his 87 T2 - basically clean but shot apex seals et cetera. Can I use the motor out of my N/A 87? If not, what about used japanese market motors? They were almost all turbo, wren't they?

 

NA motors are 6 port
Turbo motors are 4 port

USED JSPECS are a Crap shhot, they are good for cores to rebuild.

Japan FC's were ALL Turbo

 

Also the rotors have an 8.5cr for the 4 port
Your best bet is to get a rebuilt motor for the turbo.

 

Use the TII side housings so that the intake manifold will fit.

 

What the hell is that supposed to mean! I should not get one now? Sheat

 

The turbo and NA engines are completely different. Among other things, they have different irons, housings, rotors, lower and upper intake, front cover, wiring harnesses and ECUs. There are many more differences, but suffice it to say it is not a direct swap.

As for J-specs, just remember that you're buying a wrecking yard engine. You might get a bridgeported monster with a T66, you might get a stock engine ready to blow. It's a gamble.

 

Although most of the places say that they are fully leak tested compression tested washed all that stuff.

Do you reccomend buying a TII engine? Or a j-spec

 

ttt

 

A J-spec is a T2 engine...

I am sure a couple of other people will back me up on this, but IMO, J-spec engines are nothing more than decent cores for rebuilding. Any motor that has been sitting in some Japanese junkyard for the last 10 years is going to be in poor condition. To top that off, most of the ones that were in good condition were found 3 or 4 years ago.

Notice how most USED Japanese engine sellers are saying no warranty or only a 90 day warranty on rotaries anymore... its because they too know that the motors are all crap from sitting or worse and won't last more than a couple of weeks.

Now, don't get me wrong... I think they are great for conversions (NA to T2), but only when rebuilt first. But the odds of getting a Jspec that will not need a rebuild in the next 5000 miles is almost 1,000,000 to 1.

 

Thats a shitty probability!

 

I might be exaggerating a little there, but it seems that all the Jspecs I have seen now for the last year or two, just have been in poor condition from just sitting too long.

 

not to mention the TII redlines @ 7K and the S5 NA @ 8K

 

I know j-specs are TII i just meant american car engines to Japan race engines you might get a bridgeported beast as aaron stated. Or a normal engine ready to explode!

Thanks Ice