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-   -   jtpaintballwdp's '70 240z build thread (https://www.miataforumz.com/build-threads-46/jtpaintballwdps-70-240z-build-thread-954/)

jtpaintballwdp 09-05-2012 12:29 PM

Another weekend, another day of 240z work.

Hopefully going to get a full day in this time, when I went down to finish the brakes, I had less time than I thought, and didn't get to finish them up. But as of now, just need to install the wheel cylinder on the driver side rear, connect all the lines, and bleed the brakes, and DONE.

Hopefully that shouldn't take more than an hour or 2, but the car is 42 so we know how that goes.

With the time I have left it will be spent dropping the gas tank to prep it to accept a 3/8" feed, and 5/16" return line that I will be running for the turbo swap, as well as start removing the L24E. We decided not to mess around with it any more.

So now the plan is:

Drop tank
Remove Engine/Trans
Run fuel hard lines (will be much easier with engine and trans out)
Drop L28ET and Borg Warner NWC T5 5 speed in.
Rent U-Haul flat trailer, tow home possibly weekend after next
Remove R-180 3.364 diff, replace with R-200 3.545 diff
Get drive shaft made for the BW trans
MS3+Sequential fuel/spark with LSx coils in place of distributor/coil
Lots and Lots of wiring.

Man after typing that out, that's a lot of work until I can even start the car!

jtpaintballwdp 09-05-2012 02:36 PM


Originally Posted by ihasmiata? (Post 17495)
Love this car!
I can't wait to get my hands on one to build on the side. I'm deff looking forward to your updates!

I personally, would love to just buy a shell. And swap a RB in it, but i don't know much about the l28et. Other than what I just read after a quick google search. It would be cool to keep it all "original" with a engine that was offered in this specific car.

Good luck!

Thanks, Ill keep it up to date as much as possible. The RB would be really snazzy, but the buy in on just the motor is terribly high, and requires a ton of fab work. In fact, the 2jz is a much much easier swap, but still the initial purchase of the engine/trans combo is too high.

The L28ET its self is a direct drop in swap, and if using a 5 speed out of an earlier car is even easier. Just requires a bit of wiring, and a fuel line mod.

Since I am going with the Borg Warner T5 that came on the turbo cars, its a little more involved, and the BW T5 is a few inches longer than the standard 5 speed, it requires a custom drive shaft.

I'm also going Mega Squirt, so there is a lot more wiring involved.

(sorry for the late response, just saw this post)

jtpaintballwdp 10-04-2012 10:47 AM

got a quick blog going to keep track of my progress

Datsun 240z Resto-Mod Journal

sixshooter 10-09-2012 06:39 AM

There is a guy running a 240z in NASA FL events with me who is pretty damn quick. He's running 3 Mikunis and it sounds great, but the suspension and brakes are where it really shines on the track.

flying_solo 10-09-2012 04:21 PM

Local around here just had her 280z featured. I really love these cars. They look awesome.

http://jdmchicago.com/wp/2012/10/chr...8-datsun-280z/

jtpaintballwdp 11-06-2012 09:47 AM


Originally Posted by sixshooter
There is a guy running a 240z in NASA FL events with me who is pretty damn quick. He's running 3 Mikunis and it sounds great, but the suspension and brakes are where it really shines on the track.

I would love to build a 3.0 or 3.1L stroker with triples, but talk about $$$... Datsun Spirit a local shop will build you one starting at $15,000 for a 3.1L The owners car is running a 3.1 making near 400HP


Originally Posted by flying_solo (Post 18157)
Local around here just had her 280z featured. I really love these cars. They look awesome.

Christine Siepka’s 1978 Datsun 280z «

Car looks good! I wish I could get more done on mine faster. I have my 3/8" feed and 5/16" return hard lines that I need to bend and install. Everything in the engine bay is going to be AN and braided stainless. Should be ordering my MS3 and MS3x expansion board kit this month or next and start putting that together. Will be running full seq. fuel with ID1000s and individual LS coils in place of the single coil and dizzy. (dizzy will still be there with an optical trigger wheel)

jtpaintballwdp 12-03-2012 09:56 AM

Got some work done this weekend!

Datsun 240z Resto-Mod Journal

jtpaintballwdp 07-17-2013 11:51 AM

8 Attachment(s)
Alright, long time no update, well mainly because there hasn't been much to update =(

got the MS3 built:

https://www.miataforumz.com/attachme...ine=1374079872

Got my new Aeromotive FPR:
https://www.miataforumz.com/attachme...ine=1374079872

Replaced all of the fuel lines and got a new used gas tank that was in really good condition, all of the lines except running the length of the "frame rails" are braided stainless -8 or -6 lines and mounted the FPR:

https://www.miataforumz.com/attachme...ine=1374079872

https://www.miataforumz.com/attachme...ine=1374079872

Painted my intake manifold, and made a block off plate for the old idle control valve (going to replace with a GM Stepper type IAC). Still need to make a block off for the EGR on the end of the manifold.:

https://www.miataforumz.com/attachme...ine=1374079872

And then I decided to remove the head and replace the head gasket, glad I did.. When the car that this motor came out of pulled in to our garage it was running, granted we didn't do a compression test or anything. We pulled the motor and it sat for a long time, we never thought twice about it fast forward 6 years, I guess the owner of the car decided that you could turn up boost with out adding fuel... we all know how that ends:
Cyl#2
https://www.miataforumz.com/attachme...ine=1374079872

Cyl#1
https://www.miataforumz.com/attachme...ine=1374079872

And combustion chamber #1

https://www.miataforumz.com/attachme...ine=1374079872

jtpaintballwdp 07-17-2013 12:01 PM

So anyway, for now, so I can get the car mobile, I will be swapping the old motor back in. With my wedding coming up, I don't really have the spare cash for the machine work.

The plan is to have the block bored and the head cleaned up, new pistons/rings, have the conn. rods checked/replaced if needed, new bearings ect. so basically a rebuild/refresh. All in all not a bad thing, just money I wasn't ready to spend. Although you do know what they say, make a budget, and at least double it...

sixshooter 07-18-2013 10:19 PM

It's always more work than you plan for, isn't it?


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