Clubman Estate Turbo - Been to the rollers!
Turbo Mini Forums

New forge twin piston dump valve fitted today, replacing the plastic bosch type copy. Took the dash pot off and emptied the 20w50 and put in SU oil in. Done about 20 miles fuelling seems good just rich but I knew that using the BCA needle. There's a lean out going from off throttle to coming back on throttle for a second before fuelling looks more ideal. Don't know if this can be ironed out with profiling the needle or is just inherent using a carb.

Do you still have the part throttle lean off tube connected?

Shane

20w50 back in ?

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Edited by hazpalmer on 10th Nov, 2021.

a fair enough haz , maybe try shimming the piston on the rod a little ?

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Took the car to the rolling road today. Got the car on the rollers. Mike checked the timing and it was 25 degrees out. So this would have to be corrected with the map, but my laptop back light was knackered. We did try and use it but have up and used one of Mike's. The first wouldn't connect then we used another running XP and we could actually see what was going on. He wrote a rough map.

Ran the car up and the clutch was slipping. I thought that was game over! He ran it up again and it was fine so it just need bedding in a little.

My boost gauge over reads he found out as well. Boost peaks at 19psi and settled at 17. Power is 150hp at the flywheel and 130hp at the wheels. We didn't bleed any extra off so I'm guessing my half a hole of pre load is more then I thought!!!

Fuelling is good, I'm just using a BCA needle with SU dash pot oil in the carb. There is room for a little more boost up top as it richens up.

Turbo Phil popped up as well as he's local. I took my kids along as the Mrs was working today, which made things a bit harder but we got there in the end.

I plan to improve a few bits now it's set up but my intention is just to enjoy it and have fun!

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Good result, at that power level the car is pokey and very usable, much more and it becomes a handful.

Shane

Well done! Sounds like a challenging day...

'Where does the engine go?'

I've been using the mini lately when it's been dry, and today was one of those days. I took my daughter to a party and on the way back after a bit of boost *bang bang bang* out the back of the exhaust. I thought its never done that before then the car cut out. Pulled into a lay by and the car would turn over but not fire.

I think the trigger wheel has slipped again! This is after using thread lock. I was already in the process of sourcing another bottom pulley so I can get one of Tom Fentons machined pulleys and sensor brackets. Also I'll fit a different bolt to the Allen headed one fitted now.

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If you have one of the pulleys with a large damper on I can machine the trigger pattern to it.

Shane

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Hopefully just the trigger wheel as you suspect mate.

Phil.

WWW.TURBO-MINI.COM

Did you get to the bottom of the issues?

Bit of an update. I fitted the new trigger wheel and sensor. Fired up the car just using the EDIS to get 10 degrees. I managed to borrow a timing light from a friend to confirm the timing and it was spot on.

Since we've had some good weather lately I've been using the mini to get to work and run about. Just doing small jobs at the moment. Things like putting proper clips on the pot joints rather then cable ties. A few of my hose clips for the intercooler piping are iffy so I've ordered some better ones. I plan on changing my lift pump mounting in a hope to reduce the noise coming from it.

A friend at work noticed the downpipe was touching the pot joint. This must have been from changing the pulley because I had the engine steady off. You csn see where it was rubbing, luckily it hasn't blown a hole in it

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Yeh there was a small radius already, that rubbing just made it worse.

My T5 caravelle has a running issue so the mini is on daily duties until its fixed.

Currently get a lean misfire when pulling away after that it's fine. I did try making the mixture richer, but this has had no effect. So tonight I gave the needle a little tickle between stations 2 and 4 so I'll see tomorrow if that's made a difference. I've also swapped the damper oil for some thick gear oil to see if that makes an improvement

any up date

1293 Turbo mini