I've read it before but I wanted to get a consensus here. I can get a Jspec from Nippon for $950 and have enough to do a Haltech with it or buy a factory rebuild for $1800 and be safe. I know what the smarter move would be but the power hungry RX7 lover (evil guy) is sitting on my shoulder and tell me to buy the Jspec. What I would like if you can is tell me your story about buying and installing your Jspec engine good or bad. I guess I will base my decision off of what you all have to share with me.

Thanks,
Dave

 

Installing the engine your first time can be a real pain.
The second time is much easier!
Make sure you mark your injector wires and you should be OK. That is the most common mistake, getting your injector wires mixed up.
I have bought 3 J-Specs, 2 from Nippon. They are real strong engines.
Yank out your old engine before you order your new one. That way you will have it all ready for the install. Nippon offers a 30 day warranty, so you will have plenty of time to test it to see if it works.
With a Haltech, you will lessen the chances of blowing it.
I would go the J-Spec way unless you plan on porting it or something.

 

The J-spec engines I have been seeing lately are rather worn or have other problems. I don't think that there are too many of the older engines that worth anything anymore coming from Japan.

The last one I popped open had at least 60k miles on it (probably more) not the 30k miles or so that everyone advertises as well as a burnt/jammed seal and a turbo that was shot. Yah it ran... and the company says they did test it, but it was not much better than the motor it was gonna replace. Now these were for a series 4 car.

I think the J-spec engines are still a great choice if you are not planning on keeping the car for very long or you want to do your own rebuild without a core.

 

bump

 

bump

 

www.rotaryengine.com

$1269 for a rebuilt 86-92 Turbo, well worth the extra $300 in my opinion, but then again I just paid $500 to have a blown JSPEC installed so what do I know

 

I just called those guys.
It has gone up to $1350 US + $175 shipping.
Port jobs are $300.
Shipping back the core $175
3mm apex seals-$210
$2210 Total
I guess that's not bad considering they do a good job.
Also they don't take plastic. Money orders or cashiers checks only.

 

What I would really like to know is if anyone that has installed a JSpec has had a good experience or a bad one. Almost like a pole. I am going to run a compression test on it before I install it. I might even open it up.

 

Get a rebuild. Jspec or JDM, or whatever they call it nowadays, 13BT are pretty much the same over here. Avoid used engines from over there. Some people have been lucky, but luck it is. The engines that get sent from over there are rode hard, very hard. They usually come from junkyards. The engines usually make it to the junkyards when drifters or drag racers crash. These engines are not from cars that were babied. Remember, you get what buy. Buy stuff cheap and you get cheap stuff.

jerk_racer@hotmail.com

 

I have been tossing around the same idea since I blew up my 3rd. J-Spec!
I am getting real tired of yanking engines!
I bought Bruce Terrentines video, watched it, and have decided to build my own engine.
I have 3 cores now and I figure out of the 3, I can get one good (bad) engine.
I have researched rebuild kits, and have decided to go with Atkins Rotary. It will cost around $1100 for all new seals, springs, and bearings.
When I'm done, hopefully I will have a ported 13B that will be running around the 400 HP neighborhood.
I figure with rotarys, knowledge is power. The more I learn the better off I will be.