Tuning Going to gt a dyno tune do on my 126p

[gt alex]

I am just keen to have it running the best and most reliable it can.
Each time I replace a part I try to use parts with reliability in mind.

It's got a standard engine and gearbox wit these exceptions:
lighter flywheel.
123 ignition set for standard timing
1 1/4 inch minnow fish carburettor
electric fuel pump
alloy cooling fan
Michael exhaust
13inch wheels 155/60 tyres

Anyone want to guess the power reading the dyno will give, realizing different dynos give different results.
Has anyone else had their 126 on the rollers?

 

[bugsymike]

I am just keen to have it running the best and most reliable it can.
Each time I replace a part I try to use parts with reliability in mind.

It's got a standard engine and gearbox wit these exceptions:
lighter flywheel.
123 ignition set for standard timing
1 1/4 inch minnow fish carburettor
electric fuel pump
alloy cooling fan
Michael exhaust
13inch wheels 155/60 tyres

Anyone want to guess the power reading the dyno will give, realizing different dynos give different results.
Has anyone else had their 126 on the rollers?

My guess would be 18 hp at the wheels going by my book saying 24hp at the standard engine and yours has a mild tune.
It depends if your are using a computer estimate of the engine hp or actual hp at the road wheels.
Also I recall a standard 850 BMC mini only put around that figure after transmission losses from a starting point of 34bhp?
I remember putting a 500cc Rotax four valve engined Jawa road bike on a rolling road after spending £1250 on the engine years ago , being disappointed to only see 25hp after being told by the tuner it would be around 50hp, though subsequently I did find the exhaust was restricting it, so maybe I could have got a better reading later, although by then it had ripped the cushdrive out of the rear wheel and has sat in garage ever since due to other commitments.

 

[gt alex]

My guess would be 18 hp at the wheels going by my book saying 24hp at the standard engine and yours has a mild tune.
It depends if your are using a computer estimate of the engine hp or actual hp at the road wheels.
Also I recall a standard 850 BMC mini only put around that figure after transmission losses from a starting point of 34bhp?
I remember putting a 500cc Rotax four valve engined Jawa road bike on a rolling road after spending £1250 on the engine years ago , being disappointed to only see 25hp after being told by the tuner it would be around 50hp, though subsequently I did find the exhaust was restricting it, so maybe I could have got a better reading later, although by then it had ripped the cushdrive out of the rear wheel and has sat in garage ever since due to other commitments.

Thanks for your that. Just driving it feels like the mid range should be better than stock it really pulls up hills etc. wit out rowing through the gears streets I would have gone back to 2nd for I can cruise over in 4th 3rd at worst.

 

[bugsymike]

Thanks for your that. Just driving it feels like the mid range should be better than stock it really pulls up hills etc. wit out rowing through the gears streets I would have gone back to 2nd for I can cruise over in 4th 3rd at worst.

Back in the early 1970s at Motor vehicle college a friend was into his minis working for a BMC garage whilst I preferred Fords though we worked on anything that came in the doors, from 1950s Jaguar XK 140s to farmers puncture on a muck spreader (apprentices job ) with everything else inbetween.
However my friend put a Reece Fish carb on his tuned mini and was well pleased with it, apart from "icing up" when driving fast on a cold morning, but they supplied a heater device for that.
He used to have a well worn Weber carb on an A series manifold before which he offered to me for £5, I put it on a 1955 split screen Morris Minor, it gave it loads of power but used the fuel for one week in that night, so I gave it back!!!