Hazz's 1971 mental Mini Clubman - JDM B18CR engine

[Dave_Bibby]

Plus, I'd be mindful of a wallop of boost plus tiny brakes. :lol:

And for that reason I’d strap a turbo to it


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[Hazz]

The engine is having a full rebuild now. I’ve got eagle rods, I’m not sure what pistons to go for. Spoon, CP or weisco. It’ll be a +.25mm oversize.

Might be back on the road in about a month.

 

[Norv]

Nice! Did you decide on CR?

I'm sure it's a fair investment, but not worth much broken to you or anyone else. It'll be worth it when it's all done and dusted.

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[Vitka]

The engine is having a full rebuild now. I’ve got eagle rods, I’m not sure what pistons to go for. Spoon, CP or weisco. It’ll be a +.25mm oversize.

Might be back on the road in about a month.

I just hope you have the suspension, LSD, and brakes to match. Even as NA it had the power to weight ratio of a Ferrari F360, now it's gonna be supercar fast.

 

[Hazz]

Nice! Did you decide on CR?

I'm sure it's a fair investment, but not worth much broken to you or anyone else. It'll be worth it when it's all done and dusted.

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I’m going to try and keep it as close to what it is now as I can, which is 13:1. Runs sweet, other than the smoke. Plus, high compression turbos aren’t as taboo as they once were.

 

[Hazz]

I just hope you have the suspension, LSD, and brakes to match. Even as NA it had the power to weight ratio of a Ferrari F360, now it's gonna be supercar fast.

It’s on coil spring suspension rather than rubber cones at the front with adjustable shocks and coil overs at the back. LSD is an Mfactory helical racepack diff and the brakes are (brand new) from an MGTF, EBC drilled & groved discs and green stuff pads Oh and the rear drums are ally superfins which are both lighter and more efficient.

 

[Hazz]

Engine should be in the machine shop next week. I’ve had to purchase a spare cylinder head just incase it all goes tits up, it was on eBay and I couldn’t pass up the chance. Hard to find the type r heads in good condition these days.

In the mean time, I collected the intake from Stevie and I’ve hand ported it to the throttle body and taken it for a vapour blast. Came up lovely.

I didn’t do a perfect job on the porting but it’s a damn sight better than the 4 or 5mm step there was earlier. (I’ve thinned the ports, so even that part stuck out further originally).

Few more weeks and it’ll be back home hopefully.

 

[Chris.]

Any updates Harry?

 

[Hazz]

Any updates Harry?

Yooo only just seen this post sorry mate.

as it happens...it’s started going together today. I also spent yesterday afternoon at grinspeed giving the enginebay a tarting up whilst the engine is out. No pics from that I’m afraid but here’s some I shamelessly stole from Grinspeed’s FB.


Edit: thought I’d throw in what’s actually changed... it’s been bored 1mm oversize to remove the oval bore that was causing a lot of smoke. It was previously running 0.5mm overbored pistons. So this is the last chance for this block before it has to be resleved.

I went for a non forged piston, nippon racing, floating pin & with a very minor bump in compression from 11.1 to 11.7. This should complement the existing skunk2 tuner 2 cams nicely. These are running on the speedfactory rods, nice and light. Also being upgraded is the valvetrain, the cylinder head I bought came with all the top of the range skunk2 valves, springs retainers etc. Rod bolts and head studs are ARP & head gasket is OEM.... although if clearances are an issue after the head skim, I might have to go for a thicker one. TBD. New OEM oil pump, water pump, cam belt & seals throughout.

 

[TarmacNymph]

I read "So this is the last chance for the block before it has to be binned"...

Glad I reread it, haha.

 

[Hazz]

I read "So this is the last chance for the block before it has to be binned"...

Glad I reread it, haha.

tbh it may as well be, resleving a b series properly is tremendously expensive, 2k I was quoted for a dry deck. Apparently doing a conventional resleve rarely works due to some kind of Honda factory wizardry that’s hard to replicate, same for the cranks. Regrinds are pretty much a no go for most shops due to all the heat treatments etc. Mad how ahead of its time it was for what was effectively an 80’s engine

 

[TarmacNymph]

Definitely a double-edged sword then.

 

[Hazz]

Today’s the day. Getting transported to ADE tuning at 9am for it’s running in map. Gonna restrict the revs to 5.5k for now. Put some miles on it and bring it back for a thrashing. Will update in due course

 

[Hazz]

Good news: it has a map.
Bad news: it has no brake pedal. Dunno what happened there since it last moved. The slightly sus pedal previously is now non-existent. I’ve left it in Darwen to get sorted, mechanic there reckoned the calliper is stuck.

 

[TarmacNymph]

Better they discover it has no brakes in situ than you when you take it out for the first time... Haha.