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Hot!92 mr2 gen 4

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TonyMR2
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Re: 92 mr2 gen 4 2019/02/28 21:07:23 (permalink)
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So what is the custom clutch, sprung or unsprung, compound, pressure plate from 3s or 1m... any details to your customising a clutch choice...
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nut.161
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Re: 92 mr2 gen 4 2019/02/28 22:44:45 (permalink)
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Modified caldina pressure plate, organic hd sprung mr2 disc. Direct clutch made the clutch based on s54 box, up to 250rwhp and the odd track day. Have used them for every custom clutch I have needed for years and never gone wrong.
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nut.161
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Re: 92 mr2 gen 4 2019/03/15 18:41:32 (permalink)
+1 (1)
Nearly done, accelerator bracket and finish exhaust to go. Had a little drama finding a belt to fit due to the caldina one being stretched.

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Matts_SW20
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Re: 92 mr2 gen 4 2019/03/15 22:47:29 (permalink)
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Nice work with the swap, very handy having the hoist to speed things along. Will be keen to see this driving. I don't suppose that s54 has an LSD or anything fancy in it?

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nut.161
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Re: 92 mr2 gen 4 2019/03/16 18:17:32 (permalink)
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Cheers. That's my mates shed, makes life alot easier thats for sure. Just a stock s54 from the looks. I'm pretty mechanically sympathetic so hopefully it holds up for a bit as mr2 boxes dont seem to be too readily available
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nut.161
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Re: 92 mr2 gen 4 2019/03/17 15:33:14 (permalink)
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Exhaust finished today and drove it the 1km back home to get it out of my mates shed. Few little bits to finish off acc bracket, dash gauges and it turns out I'm missing more undertrays than I thought. But felt nice and strong.
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nut.161
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Re: 92 mr2 gen 4 2019/05/18 17:50:05 (permalink)
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Small update.
We finally wired in an obd port and checked for errors and general running temps. Zero codes and everything seems to be functioning correctly. Only conversion bits left are to get the tacho going (hopefully a resistor from research) get the ac going which we think is related to no tacho and sort the fans as they run full speed as soon as ign is on.
After those things might look at regoing it later in the year or early next year.
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5SGTE
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Re: 92 mr2 gen 4 2019/05/19 20:35:42 (permalink)
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Your fan issue could be related to ac. Check the pressure switch thingo in the frunk is plugged in.
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Matts_SW20
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Re: 92 mr2 gen 4 2019/05/27 21:22:43 (permalink)
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Odd with the fans, in addition to the pressure switch in the frunk I'd check the wiring from the swtiches. There'd be a fail safe its tripping like it can't read engine temp so assume it's as hot as it gets etc. 

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nut.161
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Re: 92 mr2 gen 4 2019/06/01 16:57:47 (permalink)
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Had a win today, swapped the resistor in the tacho to a 10k and now I have a working tacho, aircon and fans seem to be working properly atm. Super happy with the small amount of work though I now discovered the dash lights arent turning on so the fun continues
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nut.161
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Re: 92 mr2 gen 4 2019/06/16 14:25:44 (permalink)
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Been researching intercooling options for a while now to replace the top mount eventually. Referring to tonymr2s pic on page one I found an old ba turbo intercooler in my shed and turns out it's pretty much perfect and will be a simple fit! Just need to make up a mounting bracket, make some new pipes and get some thermos underneath it.
Not really any room left to duct it from the scoop but a block off plate from the hot side of the bay should suffice.

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#26
TonyMR2
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Re: 92 mr2 gen 4 2019/06/16 16:12:32 (permalink)
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What does the core measure at?
Core size impacts capacity to cool.

For reference a2a intercooler cores;
Stock mr2 intercooler 201 cubic inch
Aftermarket mr2 side mount 270 cubic inch
Above have long heating intercooler pipes, volume est 180 cubic inch, across manifold / next to dump pipe.
A shape mr2 passenger upgrade (aka ATS Racing) 388 cubic inch.
Boot/Trunk mr2 style up to 874 cubic inch (personally 622 cubic inch)
Stock BA approx 221 cubic inch (resulting in a comparative cooling to a stock/aftermarket intercooler performance)

Top mount (side position) best to match with curved blade slim fans underneath, removing engine lid shroud (or part there of as looks like a n/a engine lid), ceramic paint end tank closest to throttle body plus intercooler pipe to throttle body, reflective wrap intercooler out pipe to throttle body.

Having a larger out (pipe size at end tank) of the intercooler can also help flow. The out of the intercooler out looks smaller than your throttle body size. If the core is a decent size / you plan to run long term, IMO be worth getting the intercooler to a fab shop to cut the put pipe bigger and weld on a bigger out / matched size to your throttle body size.

Good work and enjoy the drive.
post edited by TonyMR2 - 2019/06/16 18:50:00
#27
nut.161
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Re: 92 mr2 gen 4 2019/06/16 19:12:15 (permalink)
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They are 370x175x55 bar and plate core. Good for about 250rwkw on a Barra. I overtook mine hence why its spare. Was planning on 2x7" thermos underneath which are already tested to fit with the x brace intact.
I wannt really planning on upping the outlet size(can do), being 50mm, such a short pipe and factory motor. I am planning on cutting the rain guard but also trying to make up a block off plate from one side of the bay to the other. I'm not chasing numbers with this car (have other for that) just want a nice stable foolproof setup.
My current caldina does quite well on iats in general, traffic kills them but does on all cars.
post edited by nut.161 - 2019/09/15 18:05:33

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#28
nut.161
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Re: 92 mr2 gen 4 2019/09/15 18:07:22 (permalink)
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Mate welded up the bov and iac inlet fittings today. Tried to organize the mess of houses, wiring etc in that area today but alot.going on.
Need to order some more tape for the inlet but for the moment its progress.

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#29
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