Rolling road day??

[rmc123]

Looking forward to it.

[woody]

Whats the address for the rolling road, may get along.

[BERT]

http://www.blackchurchmotors.ie/all-contact

[mustard]

Bump for tomorrow!

[woody]

Should be there tomorrow. Hope someone is bringing a standard MPi so I can compare againest my MPi engine fitted with a carb, should be interesting

[Dylan8660]

Bringing the mpi but certainly not standard!

[purplehaze]

Car currently has no calipers on her so, Nxt time I hope

[macker]

Any results in?

[BERT]

There been emailed out next week,good day we'll worth the spin out

[woody]

Sorry I didn't make it Paul, terrable missfire in the rain.
How did people find the guys running the rolling road and advice they gave. Would yous recomend them for a tune up of the mini?
Any idea what they charge?

[Dylan8660]

I'll kick this off. I was trialling some new injectors in the hope that they would give me a genuine 90Bhp MPi but as you can see it didn't quite attain that level, beat that torque though!



And here's the reason why it started to tail off at 4000rpm.



So I've fitted a less restricted cat and I've calculated that based on those readings it should hit 90 at around 5700 rpm so I'll head back down one of the days to try again.

[Billy]

Is that a photo of inside the cat, Dylan?

[Dylan8660]

It is Billy, only 3 months old, my refurbished cooper head was seeping oil between the new guides and the casting, all sealed up now though.

[woody]

Can you explain to me what the two curves are?
Did you change anything between the runs?

[Dylan8660]

Woody, the top curve is torque the other power. Power and torque are related as Power = Torque X Angular Velocity (revs).
Personally I prefer to see a good wide torque curve as that represents my style of driving and suits the long gearing of the mpi. Bhp is pub and Top Gear talk as far as road cars go (but it sells). It is only achieved at the high end of the rev range which suits race cars that operate in that area with close ratio gearboxes.

The top three results were with standard injectors, the other four were with my special upgrade ones fitted. I'm pleased that they gave promising results considering the state of the cat.