Vk304

4 hours ago, kiwi808 said:

FC plates work perfectly if you are just building a street car. Besides who needs FD irons in an FC. It’s like those guys how stick Chevy motors into Ford’s because they think it’s more reliable. Who the hell builds a rotary for reliability?

Hahaha yea im just exploring options, give it a good chance to last more then 5000km, though who knows what this motor really went through before i had it

Gotcha

11 hours ago, shizzl said:

There’s a few decent FC plates on the yard at the moment. 

The yard?

Id have to do something with the intake as the ports are different?

Soo i did some backyard hardness testing with various tools and the housing with the BIG wear marks or step wear whatever you call it is easily scratched with relatively soft metal, slightly harder on the unworn surface on the outside but still scratches, another plate will not scratch at all with the same tool (screwdriver), (not very scientific haha), but the plate that scratches easily and is worn, shows signs of having been sanded or something in the past.

This leads me to believe someone may have surfaced one or more plates and ultimately removed some of the surface hardening, i could measure widths as well and other things but it still remains that ill need new plates anyway due to the cracking and exessive wear, potentially i could save one but ill see...

Bad news, i think all the irons are beyond repair, cracks in one of the bridge ports, and center of a iron

I suspect the water was getting in here... maybe? There is some pitting in the face of the iron around here

And lots of substantial wear, i can catch a fingernail on a lot of it, makes me wonder why they are so deeply grooved and the alloy housings are mint...?

Anyways, on the lookout for decent s4 s5 irons now, i may get away with one of them but id rather some mint ones for peace of mind and they are surface coated so any lapping or machining would remove that i believe... correct me if im wrong ...

Well i gotta say, im not really surprised, but i am disappointed in the old 'built' engine with less than 5k kms 

So i pulled the thing apart, good news all the bearings look fine and the rotors as well as all apex seals etc. and alloy housings look to be in good condition... 

Yea we will see, just need to get a 54mm socket now and i can split it

Hope its not too bad but yea should be cool to see what its like, when it got real bad it sounded like 1 rotor was going and lots of backfiring and water pushing out of the radiator, did a compression test but nothing really stood out there, if its cracked there does that mean buy a new one or is there a way to save it?

So im having a bit of a tidy up now, removed the turbo/intake area... happy to report none of that was leaking at the flange again so thats promising, decided to give throttle body an inspection, the tps was real sluggish to return and on further investigation not in spec in terms of resistance readings, some wd40 and compressed air cleaned out what ever gunk was holding it up and it now returns quickly...

The ohm readings at closed throttle were off, and i needed to adjust the screw and bend the bracket slightly as i had run out of adjustment screw.. 1k ohm at idle, 5kohm ohm WOT. Im assuming some wear happened or someone bent bracketry previously to cause it to be misaligned... a lot has been deleted off this unit, including cold start functions, secondary throttle blades and linkages, but it should all work good now... i aint forking out $300+ for a new tps... 

Its now in spec and im going to clean/weld up some unused ports on the intake and throttle body to prevent unnecessary leaks, at the moment everything is blocked off with plates, gaskets and hoses with bolts shoved in them... a little agricultural, tig should sort that out when i get argon tomorrow...

Rear shock, needs a new top hat, im assuming this is just factory stuff, hit me up if you have one!

Heard they are good, cheers will keep them in mind...

Yea i currently have a surge tank and pump occupying the other side haha so thats not an option, but ill get around to doing it properly soon

Yes i have a maxfab 3.5 resonator in the front, cheers, if thats not enough i might have to run 2 resonators 

Needs a better muffler, anyone know a brand that will shut this thing up for sure ? Adrenalin r, boiler, other? 3.5 inch too big to ask of a muffler to be quiet for a wof? I want to be able to run this on the street but not have a massive amount of exhaust backpressure, Link to discussion above...

Yea ay, was one of the majors to fix, no im good thanks lol 

Been chasing what i thought was an exhaust leak from my down pipe/ turbo vband, turns out the manifold had a decent sized leak, pretty easy fix and should be all sealed up tomorrow, with a resonator and the muffler its still bloody loud though, have tried plugging the exhaust tip with increasingly small pipes for wof but no luck...

So im looking at repacking or getting a bigger muffler now 

On 13/01/2024 at 17:14, mjrstar said:

Is there any chance that mx5 light motors would be the same?

Yes my thoughts too and they work fine but not the same mounts