315 replies to this topic

[Turbo Nick]

Once again progress has been a bit slow due to work, getting pneumonia and playing around with old Corollas but it's had a kick up the arse of late and things are happening at last.

 

 

Engine build turned out to be more complex than I imagined. Plan was to re use most of it and just build a new bottom end.

 

I bought a set of +20 18cc forged Omega's, then worked out my compression with the 28.5cc head I had and it came in around 7:1, way too low!

Sold the head and have got a new one on order with much smaller chambers to get my compression somewhere much more sensible.

 

Sent my 1275 block off to be soda blasted along with a few other parts (not the gearbox, it works so I'm not stripping it out and distubing things, that'll just get cleaned and painted)

 

 

Then it got sent to the machine shop for the usual stuff, rebore, 11 stud, centre strap, tapped oil galleries, cam bearings etc.

Also ordered a crank and gave them my flywheel and crank damper to get the whole rotating assembly balanced.

 

While that was all being done I got on with making up the few solid brake lines I needed to do. Ordered a straightening tool, by far the most useful thing I've used in a while, I hate wiggly brake pipes!

 

 

Got this little lot back and a nice parcel from John at Specialist Components.

 

 

 

 

Came home from working away all week to a delivery from MED as I needed the shorter gudgeon pins and circlips to suit my new rods, also needed new timing gear as my old doweled one was a pain in the arse.

 

 

That was last night and the pile I was greeted with so I got straight on with building the bottom end to check some tolerences.

 

 

 

 

 

Next chance I get I can check the crank end float and also measure how much the block needs decking.

 

Only other engine parts I'm waiting on are the cam and head now, and I need to decide which oil pump to run and get that ordered.

 

All in all a pretty successful update and another expensive part out of the way, just the paint job left to save for.

[Pauly]

Christ dude I thought you'd been quiet of late. Glad to hear your back on the mend!

It's looking good though

[José Cardoso]

Sadly I think your crankshaft do not go last for long time in a turbo engine...

See the next topic to see what appened in a crank like you have in a turbo engine:

http://www.theminifo...d-engine/page-2

Edited by José Cardoso, 29 October 2015 - 12:29 AM.

[Turbo Nick]

I guess we shall find out!

 

That's the first one I've seen snapped out of how many out there? Sometimes you're just unlucky and stuff breaks

[mini13]

that snapped crank wasnt in a turbo lump so isnt comparable.

 

despite what is written it IS rpm that kills cranks, unless of course they run in a resonant patch of rpm...

 

generally turbo lumps will only see 7k max, and the extra forces from combustion pressure actually oppose the forces from rpm.

[Turbo Nick]

Did I mention I was building this one for 8k+ rpm?

 

Expecting slightly more frequent rebuilds than my last one though..

[Turbo Nick]

Pre Christmas update :)

 

Managed to get hold of another twin bolt subframe to hack up, moved the top arm mounts to give a nicer angle on the top ball joint with how low I want to run the car.

 

 

Need to adjust the shock mounts again now as the top arm move has pushed the bottom of the coilover into the wheel, should be a quick fix once I get the subby back on as it's off being shotblasted.

 

 

 

Engine build is progressing well, just the head that i'm waiting now and a minispares order tomorrow.

 

Bought the dsn timing cover kit off johnny because I'm a tart and it looks pretty. Went for the one of the swifty oil pumps as the MED evolution are out of stock for the foreseable future.

Got it all timed up tonight, The MED timing kit is way better than my old doweled minispares one.

Just need the primary shim to arrive and then I'll re-check the idler and get the box /clutch etc bolted on. Will stick a spare head on for now so I can start looking at making a new downpipe and exhaust once the subby is back in.

 

 

 

 

 

 

 

Also started stripping down my turbo as it was pretty worn, just caught it before the comp wheel started picking up on the housing 

 

 

 

That's it for now, more to come over christmas with any luck :)

[Anthony30]

[coopdog]

Moreeeee

[Jayme 1275]

Looks great mate, crank looks awesome. Would love one for my 16v build, id just be scared the revs would kill it, at the end of the day though if they stand the abuse the miglia's give them they are bound to be more than up to the job. 

 

Also neat idea to move the top arms, be interesting to see how that goes.

 

Look forward to seeing this done.

[Turbo Nick]

Managed to get it back down on its wheels today at last.

 

Pretty much finished the front suspension off yesterday and finished building the engine this morning. 

 

 

 

[Wupding]

.... I'm drooling

[RossKnight]

I've gone off minis, but honestly I'd have this one in a heartbeat. Hopefully you can keep the engine bay nice and bare.

[alex-95]

Looks great , what paint did you use to paint the engine?

[coopdog]

Getting exciting now