Engine/model identification

sailaholic · Postby **sailaholic** » Mon Feb 10, 2014 1:22 pm

1300 for full dressed engine sound about right . Box seems over priced though. 323 engine is cheaper if you already have the rwd parts, often not other wise. If you can find a cheap mx5 engine with a blown gasket or spun bearing it is probably worth it. Boxes are normally about 200 or less on here. A 1.6 box will do exactly the same job just might have more km on it.

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project.r.racing · Postby **project.r.racing** » Mon Feb 10, 2014 1:45 pm

BPTravis wrote:Yeah mx5 only,had to be rwd format.

So I'm guaranteed to get what I want if I get a NA8 from '94-'98 and some of '93

Well actually I'm after whatever BP from a mx5 would be easiest to put gtx familia turbo gear onto,
Pretty sure the earliest mx5 BP would be easiest.

you want a na8 motor then

same except a few exturnal changes as a KF/KH TX3 and BG Astina SP engine and BA/KJ 1.8-94-96.

but to be honest the fwd exhasut manifold and turbo inlet/outs all point the wrong way for a rwd varient. so be careful with what you attempting to do, or what you possible final outcome might be.

project.r.racing · Postby **project.r.racing** » Mon Feb 10, 2014 1:52 pm

BPTravis wrote:Holy crap!
I just got a quote for $1300 for the NA8 motor (just motor) and $500 for the 5sp also NA8!
Are they really worth that or is old mate pulling my chain?

If that is the going rate, it seems it would be way cheaper to rwd convert a 323 motor :-/ as I should be able to get 323 motors for pennies lol

mx5 owners tend to have more money. its a premium model and you pay accordingly.

BPTravis · Postby **BPTravis** » Tue Feb 11, 2014 8:07 am

Seems expensive to me as I got a quote for the 2001 VVT Bp For $1350 or $1650 can't remember :-/

It's starting to seem easier/cheaper to rwd convert a 323 BP, as I will be using the BG ecu and loom anyway,
Off the top of my head it would just need mx5 intake manifold and either more room for the dizzy against the firewall, mx5 ignition or something figured out there.
I can get a whole running 323 with BP for $500.

Wouldn't need to worry about exhaust manifold as I have a aftermarket turbo mani in the shed.

project.r.racing · Postby **project.r.racing** » Tue Feb 11, 2014 8:32 am

just remember, and the bloke with the converted TX3 had this same issue. that parts you require to convert a laser/323 motor to rwd are pretty hard to find seperately. or will add onto the $500 you already spent for the FWD verient.

not saying dont do it. but see if you can line up the parts before you commit to going down the conversion option.

BPTravis · Postby **BPTravis** » Tue Feb 11, 2014 8:45 am

project.r.racing wrote:just remember, and the bloke with the converted TX3 had this same issue. that parts you require to convert a laser/323 motor to rwd are pretty hard to find seperately. or will add onto the $500 you already spent for the FWD verient.

not saying dont do it. but see if you can line up the parts before you commit to going down the conversion option.

Good idea project! :-)

Is it just those 2 things
Intake and dizzy?
And maybe coolant flow?
With the intake some wont bolt on right? Different stud alignment or something. Would it be just the NA8 intake I can use?

Gotta remember I'm using BG BPT loom

I'll review that thread where old mate put a 323 motor in there mx5 again too.

BPTravis · Postby **BPTravis** » Tue Feb 11, 2014 9:46 am

Also, sump and oil pick up will need to be changed.

Any chance u have a link to the rwd laser?

project.r.racing · Postby **project.r.racing** » Tue Feb 11, 2014 12:53 pm

BPTravis wrote:Also, sump and oil pick up will need to be changed.

Any chance u have a link to the rwd laser?

http://fordlaser.com/forum/viewtopic.php?f=73&t=88077

BPTravis · Postby **BPTravis** » Wed Feb 12, 2014 10:34 am

What's the input shaft spline?

Any chance it the same as FWD BP g series early 5pd vs early 5 sp

project.r.racing · Postby **project.r.racing** » Wed Feb 12, 2014 11:21 am

BPTravis wrote:What's the input shaft spline?

Any chance it the same as FWD BP g series early 5pd vs early 5 sp

are you referring to gearbox or axles?

If referring to gearbox, NA6 is like F series and NA/NB8 is like G series.

BPTravis · Postby **BPTravis** » Wed Feb 12, 2014 11:45 am

Sorry, talking about clutch/gearbox

I've got a ready to use fwd BP g series flywheel

Will is work with the mx5 5sp?

project.r.racing · Postby **project.r.racing** » Wed Feb 12, 2014 11:54 am

yeah mx5 boxes are just like f/g boxes. the smaller 200mm clutch stuff will go where the 225mm fits.

fly and clutch are all same dimensions. just clamping for clutch is different. mazda supplied flys are exact matches/same product.

BPTravis · Postby **BPTravis** » Wed Feb 12, 2014 12:09 pm

Awesome, so if I can get a BP g series clutch supplied it'll work with the mx5 box?

Or, if I ordered a mx5 clutch it'll fit the fwd pressure plate?

project.r.racing · Postby **project.r.racing** » Wed Feb 12, 2014 1:48 pm

BPTravis wrote:Awesome, so if I can get a BP g series clutch supplied it'll work with the mx5 box?

Or, if I ordered a mx5 clutch it'll fit the fwd pressure plate?

yes if it is a na/nb8 gearbox

BPTravis · Postby **BPTravis** » Thu Feb 13, 2014 12:23 pm

Okay. Did a bit of research on the mx5 5sp
According to this forum they can handle anywhere between 140rwkw to 200rwkw depending on drivin style and what the car is used for.

That being said, are they like the fwd BG boxes where they don't like abuse/hard shifts/clutch dumps/weak 3rd/weak bearings or anything like that?

Also, recommended clutch for a 125-150rwkw setup?
Would they prefer a big pressure organic or would they go okay with a button?