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J-Spec Or Rebuild.

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Old Oct 13, 2005 | 09:12 AM
  #1  
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J-Spec Or Rebuild.

I found out the front rotor is blown in my car. Should I get a jspec engine or just get it rebuilt? How much should a rebuild cost? How much should a jspec longblock cost? I found a jspec for 950. The car had a hesitation problem before, so I think Im gonna go with a jspec. Will I need to get a jspec ecu or not?
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Old Oct 13, 2005 | 09:20 AM
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No J-spec ecu is needed. The rebuild is more reliable as long as it's built by a good shop. The-J-spec is a gamble though. Lots have gotten good engines, others have not.
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Old Oct 13, 2005 | 09:25 AM
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If you get a Jspec, you'll need to rebuild it anyway. Its only been sitting for 12+ years
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Old Oct 13, 2005 | 10:16 AM
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J-spec is a motor from a Japanese Junk yard. They MUST be better than a Motor from an American junk yard. Since some dude you've never met and will never be able to find, claims it only has 30k on it....and he is Japan.....it must be true. You know 'all' the American junk dealers are crooks, why not send your money to Japan.

And if you still not convinced, "Bob the Normal" has an American junkyard motor in his car today, he took a chance and it ran just fine.

I'll leave you with this. You already have a junkyard motor.........it's under your hood. It just needs a few parts installed.

Attached Thumbnails J-Spec Or Rebuild.-lolz.gif  
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Old Oct 13, 2005 | 10:41 AM
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Too many variables to say for sure.
My 7 is my daily driver, so I went with a J-spec to: save time, get spare alternator, spare turbo, some spare connectors, and a spare water pump.
Now I can take my time to rebiuld my origonal RE.

Rebuilding your current motor is more economical unless you have to replace rotors & housings.
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Old Oct 13, 2005 | 10:59 AM
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smart^^^^^
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Old Oct 13, 2005 | 11:39 AM
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buy 1 new housing and rebuild urs
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Old Oct 13, 2005 | 11:56 AM
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Rebuild it. Most of those people don't know **** from **** about Rotaries in the first place !
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Old Oct 13, 2005 | 03:15 PM
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No J-spec ecu is needed. The rebuild is more reliable as long as it's built by a good shop. The-J-spec is a gamble though. Lots have gotten good engines, others have not. you would need to change ecu to run a j spec motor ????
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Old Oct 13, 2005 | 04:34 PM
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Take It From Me...most Jspecs Are Good Cores...if You Do Get The Jspec...some Really Do Have Low Mileage And Therefore The Internals Are In Great Shape And Perfect For A Rebuild...i Had To Learn This The Hard Way...if You Get A Jspec Rebuild It And Then Ur Good To Go...trust Me
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Old Oct 13, 2005 | 07:27 PM
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The guy said the compression is fine and the engine has been out of the car for only 30 days. You guys dont think it will be a good engine? He said it ran perfect. Should I believe him?
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Old Oct 13, 2005 | 07:34 PM
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Originally Posted by tIIsleeper
Should I believe him?
hahaha
funniest question ever
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Old Oct 13, 2005 | 07:44 PM
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Originally Posted by tIIsleeper
Please, dont **** me off more than I already am. Anyone have intelligent replies?
Should be nicer if you're looking for intelligent replies. Noone hear knows that person and you're the only one that has been talking to him. So is your question even intelligent when you factor alot of the other **** in.

I still say rebuild it. You have a chance on getting a good engine, but why not get a good rebuid with a warranty? Make more power and have reliability.
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Old Oct 13, 2005 | 07:46 PM
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REBUILD!!!!! u never know the true cond of a j spec
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Old Oct 13, 2005 | 08:50 PM
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werd homes
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Old Oct 13, 2005 | 08:54 PM
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Im looking at a gtus and the guy says i needs the rotors and houseing replaced. How hard is that to work on and etc. Someone the thread made it seem like a big deal. The car is on ebay and i live about 3 hours from it. Not sure if it worth buying. I no the gtus is rare, but sure about the work or would it be easier to rebuild or get a new rebuild. Do you now any site with good rebulids besides mazdatrix.
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Old Oct 13, 2005 | 09:08 PM
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How about buy the engine from a reputiable shop that knows about our engines plus some come with 30 day guarentees.
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Old Oct 13, 2005 | 09:11 PM
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i'm with slpin and jager, it was a dumb question... what kind of reply did you really expect?


if you really want to feel better here is the answer you really wanted:




"yes, it will be perfectly fine and produce more than enough power for 10 years and 200,000 miles"
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Old Oct 13, 2005 | 09:12 PM
  #19  
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Originally Posted by FuriousComet
Im looking at a gtus and the guy says i needs the rotors and houseing replaced. How hard is that to work on and etc. Someone the thread made it seem like a big deal. The car is on ebay and i live about 3 hours from it. Not sure if it worth buying. I no the gtus is rare, but sure about the work or would it be easier to rebuild or get a new rebuild. Do you now any site with good rebulids besides mazdatrix.
I believe that rx7store.net has them. Not sure though.
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Old Oct 13, 2005 | 09:15 PM
  #20  
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Originally Posted by Karack
i'm with slpin and jager, it was a dumb question... what kind of reply did you really expect?


if you really want to feel better here is the answer you really wanted:




"yes, it will be perfectly fine and produce more than enough power for 10 years and 200,000 miles"
It may have been a stupid question, but why write a reply like that?
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Old Oct 13, 2005 | 09:17 PM
  #21  
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Originally Posted by tIIsleeper
I believe that rx7store.net has them. Not sure though.
What you think, http://cgi.ebay.com/ebaymotors/ws/eB...3ARTQ%3AUS%3A1
He would sell it for 2500. would you say its worth the time and work. I think so but i like some advice from some more experiance people.
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Old Oct 13, 2005 | 09:21 PM
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because some lessons are supposed to hurt to be learned.

the info in this thread so far has all been correct, Jspecs are not exactly reliable but make good cores most of the time. people will lie and tell you what you want to hear to sell you a motor and then if there is a problem deny responsibility. you can have your engine rebuilt for lsightly more than the cost of a jspec and if it was built by a reputable builder it should last for a good long while where the jspec may only last a few months up to several years.

is that better now that ive just regurgitated what everyone else has said and stated my own observations?

i'm only an ******* when he circumstances require it.
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Old Oct 13, 2005 | 09:29 PM
  #23  
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Originally Posted by FuriousComet
What you think, http://cgi.ebay.com/ebaymotors/ws/eB...3ARTQ%3AUS%3A1
He would sell it for 2500. would you say its worth the time and work. I think so but i like some advice from some more experiance people.
Seems like a good deal, buy there are six days left.
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Old Oct 13, 2005 | 09:31 PM
  #24  
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Originally Posted by Karack
because some lessons are supposed to hurt to be learned.

the info in this thread so far has all been correct, Jspecs are not exactly reliable but make good cores most of the time. people will lie and tell you what you want to hear to sell you a motor and then if there is a problem deny responsibility. you can have your engine rebuilt for lsightly more than the cost of a jspec and if it was built by a reputable builder it should last for a good long while where the jspec may only last a few months up to several years.

is that better now that ive just regurgitated what everyone else has said and stated my own observations?

i'm only an ******* when he circumstances require it.
I was refering to Slpin's reply about me dying in a fire. Sorry. Thanks.
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Old Oct 13, 2005 | 09:49 PM
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I say go Jspec....if it is offered a warranty. Couple of shops out here are into importing Japanese engines and I havent heard any bad **** about it.....
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