MX-3.com

I've had a few requests about the piping of the supercharger, so here goes:

i've read this whole worklog half a dozen times def my favorite thread.

thanks for posting those pics of the the charger set up i'm really thinking about this as part of my soon to be klde swap.

itb's are seriously sweet too!

Is that the original tube from your airbox ?? The one with the dead-end ??

Lol I think it's actually from my brothers 323f. It was just lying about and fit the purpose!

supercharger with intercooler?

algirdzz_ wrote:supercharger with intercooler?

Do you require an explanation?

algirdzz_ wrote:supercharger with intercooler?

That, sir, was stupid.

Respect^^


i like this project, car sounds nice with the supercharger.

looking forward to news

nice project mx-3

marcdh wrote:

algirdzz_ wrote:supercharger with intercooler?

Do you require an explanation?

You dont have more AG with IC, it look nice, but there is "-", becouse the air road is very long.
supercharger is not a turbo...
But I think that you know the diderences between them

compressing air makes it hotter... you lose almost half your efficiency up to around the 10 PSI mark...

just so you know, my brother has a supercharged cobalt ss and they come stock with a heat exchanger, which is basically a fancy way of saying small intercooler. just because its not a turbo doesnt mean the same basics dont apply. its still compressed air just like stated in the above post

most supercharged cars come with an intercooler. mazda had intercoolers on theyr miller engine, too.

Thanks for all the feedback mitmaks and Kuro88

Today I decided to install my Jspec KL31 cams again after getting a replacement rear cam for the one that broke in half last year.


Whilst I was at it I gave the head bolts another 20-30 degrees on the leaky rear head. I don't know if it will make much difference, but really nothing to lose.

I also noticed the timing belt was completely slack between the two cams and super tight at the crank. Think I must have skipped a tooth at some stage! Will be nice to get some free power by being in time These heads still look so young! Hardly any varnishing at all, I guess changing oil pretty often really keeps things clean. It's a real shame about the head gasket being leaky. Only coolant seeping out occasionally into the V, no mixing, so maybe I'll get away with it for a while.

I'll be finishing this off tomorrow hopefully. I'm hoping to go to a dyno day on the 22nd, so I thought I should get the higher lift cams in. I'll probably just be going NA with the VRIS gutted millenia manifold. I'd like to know where I am before putting the ITBs or SC on the rollers.

I've finally done what's always been on my mind TURBO and so far I am absolutely loving it.

Here's the build in a very condensed form!

First things first... bay respray, unused bolt holes filled in, fuse box tucked, and a massive hole welded in with new metal:




Turbo arrives and instantly gets taken apart:




eBay KLDE is cleaned up and water pump replaced:




manual TBT welded up:


Turbo pipes test fitted:


Up pipe extended to clear frame rails:


Downpipe modded to tuck in and up more:


Wastegate flange chopped off and replaced with 41mm TiAL f41 WG flange:


Cross member tucked as high as possible and rewelded:


RS200 radiator bought, and adjusted for mx3 fitment (opposite corner outlets reTigged on, holes blanked, custom mounts) and pressure tested:



Twinpass intercooler with super short IC piping as the shorter radiator allowed them to pass up the side of it, with new bracked welded on:


Why use silicone couplers when you can tig Last weeks weld a bit lame, weld above getting better :


Welded on plate for IAT sensor and blow of valve port:



All in Distributor gone:


Interior reassembed now with megassquirt standalone setup:


Turbo piping:


Powersteering pump relocated, goodbye fugly. Custom engine mount. Also replaced header tank, with new pressure cap inline:


Overall shot:


Spec/work list:
KLDE
Megasquirt Standalone and coilpacks
TiAL 41mm wastegate 5/6psi spring
Turbosmart BOV
eBay t3t4 turbo, polished, with restrictor and inline filter - so far so good! All AN feed and return
Custom alloy raditator
Twinpass IC
Super short IC piping
Bay Resprayed and smooth off unused holes
Minor wire tuck
Power Steering relocation
Turbo blanket
All hotpipes wrapped and sprayed with silicone high temp coating
Custom timing belt side engine mount
Millenia S injectors
Walbro 255

So that concluded this update! Videos will follow

Looks so badass, glad to see you are doing things the right way with the fabbing and such.. I like the turbo inlet area with the filter, looks cool. I also like your rad and IC setup, looks super clean.

Hows it running? That old waterpump area looked effin nasty