KJ 2.3

papa roached · Post by **papa roached** » June 24th, 2004, 7:01 am

Originally posted by IanL:

Originally posted by Mariusz:
Should I use stock flywheel from K8(MX-3) or KJ(Millena) ?
I would say stick with the Millenia flywheel, as long as its suitable to take the clutch - I'm willing to bet there's no-one who's tried a lightened flywheel on a KJ, and you are doing enough risk-taking already

thing is you gotta use teh K8 flywheel because the millenia dont have one, it has a flexplate because its an auto

IanL · Post by **IanL** » June 24th, 2004, 9:11 am

Originally posted by papa roached:

thing is you gotta use teh K8 flywheel because the millenia dont have one, it has a flexplate because its an auto

My error - didn't know about drive plates for ATX. Maybe a KL flywheel would be more suitable?

TsiMiata · Post by **TsiMiata** » June 24th, 2004, 10:25 am

If it was me I'd be putting an aluminum flywheel on there. Lighter is better in my book. Using the K8 flywheel gets you a few pounds lighter and for him it would be free.

IanL · Post by **IanL** » June 24th, 2004, 11:40 am

Originally posted by TsiMiata:
If it was me I'd be putting an aluminum flywheel on there. Lighter is better in my book. Using the K8 flywheel gets you a few pounds lighter and for him it would be free.

I know that's true with an Otto Cycle engine, but this is a Miller Cycle - huge valve overlap - I'm skeptical that a lightened flywheel will be good.

mmx01 · Post by **mmx01** » June 24th, 2004, 12:35 pm

I've called to them today, they've promised to reply my about this topic till sunday. I have hope that the price won't kill me.

TsiMiata · Post by **TsiMiata** » June 25th, 2004, 12:41 am

Originally posted by IanL:

Originally posted by TsiMiata:
If it was me I'd be putting an aluminum flywheel on there. Lighter is better in my book. Using the K8 flywheel gets you a few pounds lighter and for him it would be free.
I know that's true with an Otto Cycle engine, but this is a Miller Cycle - huge valve overlap - I'm skeptical that a lightened flywheel will be good.

There isn't more overlap on a miller. The intake valve is open longer- while the exhaust valve is closed. It doesnt run like a 68 camaro with a crazy cam. It's a luxury car engine, which is all about being smooth.

mmx01 · Post by **mmx01** » June 30th, 2004, 7:21 am

I have some doubts about this KJ swap, I heard that there is a lot of problems with spare parts.
So the swap it self is doneable but what with car exploatation ? Spare parts for SC and others ? Does anyone knows sample prices of the weak engine parts ?

TsiMiata · Post by **TsiMiata** » June 30th, 2004, 12:24 pm

From everything I've heard the KJ is very reliable. I have a friend thats a parts manager at a mazda dealer. He told me the KL 2.5 liter millenias had much more warranty work than the KJ powered cars.

mmx01 · Post by **mmx01** » June 30th, 2004, 4:17 pm

So it's basically better than a ZE ?
Also what is the diffrence between KL-ZE straigth and curved neck ? besides the shape ?
Does someone knows this company ? : http://www.a1jdmengines.com/home.htm

PS. most of peoples are switching the distributors between ZE and K8 during swap why ? If you can buy a engine with distributor why don't use a stock one ?

IanL · Post by **IanL** » June 30th, 2004, 5:44 pm

Originally posted by Mariusz:
Also what is the diffrence between KL-ZE straigth and curved neck ? besides the shape ?

The straight neck usually interferes with the brake reservoir on LHD cars, the curved does not.

most of peoples are switching the distributors between ZE and K8 during swap why ? If you can buy a engine with distributor why don't use a stock one ?

You have already had that information in this thread

: http://www.mx-3.com/ubb/ultimatebb.php?ubb=get_topic;f=15;t=004988;p=2#000042

mmx01 · Post by **mmx01** » July 1st, 2004, 4:27 am

Yes, but I received a picture of an engine where the distributor is complete with the high voltage wires. If the distributor is complete should I or should I not switch it ? Probably not

IanL · Post by **IanL** » July 1st, 2004, 7:10 am

Originally posted by Mariusz:
Yes, but I received a picture of an engine where the distributor is complete with the high voltage wires. If the distributor is complete should I or should I not switch it ? Probably not

If it is "complete", fine, but count the H V wires - if there are seven, it has a separate coil and igniter.

mmx01 · Post by **mmx01** » July 1st, 2004, 1:37 pm

I will check number of HV cables, and what means reservoir interfaces ? There is only cable for brake fluid level.

IanL · Post by **IanL** » July 1st, 2004, 2:29 pm

Originally posted by Mariusz:
I will check number of HV cables, and what means reservoir interfaces ? There is only cable for brake fluid level.

Sorry, technical term. Interferes, not interfaces - it means it comes into contact with it

mmx01 · Post by **mmx01** » July 1st, 2004, 2:46 pm

OK, so which one should I choose for replacing my K8, curved or straigth ? I have LHD like most europeans

K8 has a curved one

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