are there any websites out there on how to convert the turbo 2 to a j-spec engine?



if anyone wants to explain what all is required please do, i found a 88 turbo 2 with an excellent body and new rebuilt tranny, just has a blown engine, the guy onlt wants 900 bukcs for it, the interior is so so, anyways i figure the j-spec engine, ecu, and what else? im not even to familiar with the turbo 2's becasue no one i know owns one or myself either, thankss for the help :bigok:

ive also read the j-spec engines dont last long, hehe is it the member voscko that blows them up? lol that would suck, didnt you put 2 of them in and the apex seals **** on you?

jspec's suck unless you ebuild them prior to using them

the actual engine blocks are identical, so its no different from a regualar swap



mike

There isn't that much difference in the j-spec and us-spec tII engines. Basically they are the same. I think all you need is the engine, ecu, and wiring harness. It should be a direct bolt in job. No cutting or anything. Yes Vosko was the one who kept killing j-sepec motors. It wasn't the apex seals though. It was the coolant seals. Anyway the reason they kept going was because they are all used engines with about 40k miles on them. That's why they are cheap to buy. Basically you don't know how it was treated before you get it. This is the reason why they go within a few months. It's like buying an unproven part. You never know what you're getting.

Is there a place online that sells jspec engines? I'm trying to get one cheap to rebuild and port, so my car isn't out of commission for a while while I'm porting my own engine...

would the rebuilt kits for the turbo 2 be the same for a j-spec engine?

theres a lot of places online that sells them, i know for sure www.corksport.com has them as i just visited the website for the first time about 5 minutes ago, lol thats only only place i can recall at the moment, i must sleep............

also my RX7 is a series 4, would it matter is the j-spec engine is a series 4 or 5? and what about the sensor on the intake becasue those were both different of series 4 and 5?

It does matter with the series unless you want to do alot of work, basiclly if you just want to pretty much drop the new motor in youll want the same series. And for the rebuild kit its all the same thing.

the motors are pretty much the same. You dont neccessarily have to rebuild it, sometimes youll get a good tight motor, but its something to have extra money to do in case it needs it.

Good luck with it man.

You can take a chance. not like vosko, i've been blessed by the jspec god https://www.nopistons.com/forums/pub...1047683894.gif . My jpec has great compression and I've been racing it for the past 8 months, no leaks no problem. I was just lucky.



RIght vosko? :smirk:

CorkSport.com in orgeon got good engines. mazdatrix got sum but they a lil pricey

yeah didnt vosko go through 2 or 3 bad jspecs? and it wasnt him who made em bad or was it?

so what is all needed to drop in a 91 j-spec motor into an 87 turbo II? wouldn't usdm harness and ecu not work? thanks in advance

there are 3 ways to do it

1. use the 89 block, with the 87-88 electrics

2. use all of the 89 electrics, the whole car

3. use the 89 stuff in the 87-88 car, and make adaptor harnesses



mike

Number 1 is your best bet if you want it up and running quickly.Who cares about S5 electronics?Thats why they build standalone systems. :smirk: