[MINI-Morgan]

But if it feels fast through sound then thats a bonus Its driving pleasure that counts more than anything else id say.

[Loui]

Quote: Originally Posted by MINI-Morgan (original)

But if it feels fast through sound then thats a bonus Its driving pleasure that counts more than anything else id say.

Now that sounds a cop out lol

[MINI-Morgan]

Quote: Originally Posted by Loui (original)

Now that sounds a cop out lol

LOL! Cheeky!

Maybe.... mine sounds really fast but just lacking that little bit extra at the moment that puts it over the edge. Usually I find it when its -10 degrees outside and it is like a monster!

[Aberdeen Al]

Guys - been away the past few days and only just picked up the car this afternoon. Here are my "pre cyl. head" figures and my "post cyl. head" figures:

Corrected Power: 196.5 bhp
Engine Power: 198.6 bhp
Wheel Power: 140.7 bhp
Drag Power: 57.8 bhp
Max Power: @ 6475 rpm / 122.9 mph
Max Torque: 174 lb/ft @ 4555 rpm / 86.4 mph

Corrected Power: 221.4 bhp
Engine Power: 223.7 bhp
Wheel Power: 165 bhp
Drag Power: 58.8 bhp
Max Power: @ 6440 rpm / 117.9 mph
Max Torque: 181.0 lb/ft @ 6315 rpm / 115.7 mph

Once I've rigged up my scanner later I will post the pre & post "power curves"

Cheers,

Al

[Loui]

Humm dont know what to make of that, its seems to have shifted peak torque higher but on the other hand its improved peak power. But theres still got to be an issue there i would have expected more power than that???

[Paul Webster]

I cant work out how 35rpm =5mph

[Aberdeen Al]

Quote: Originally Posted by Loui (original)

Humm dont know what to make of that, its seems to have shifted peak torque higher but on the other hand its improved peak power. But theres still got to be an issue there i would have expected more power than that???

I would have expected more power before the changes considering theoretically I should have been getting at least 220 bhp with my GTT conversion (minus re-map)!

[sef]

I agree with Loui... You should be getting more power than that...

[Aberdeen Al]

Seemingly far too much fuel!

Can't think of anything else that would be causing the -30ish bhp!

[Paul Webster]

Have you got the airfuel on the dyno graph, don't forget you were in theory 30bhp down with the 380s.

[alski]

al, not sure if this helps, but running a GTT 220 for over a year now, + intercooler for last 6 months, i am sure i have had a progressive reduction in mpg over last few months, i have also noticed a fuel smell as well when pulling out of garage in morning, nothing too drastic,
on the plus side more burbles and pops as well which i had put down to the Milly, but i think on reflection more fuel is going thru [tesco 99 mostly] due a manifold upgrade shortly so might look into state of tune after that

[Aberdeen Al]

Quote: Originally Posted by 1320autos (original)

Have you got the airfuel on the dyno graph, don't forget you were in theory 30bhp down with the 380s.

Nope no A/F ratios on the graph although there were markings on my pistons - I'll attach a sketch of these when I scan my dyno results.

Quote: Originally Posted by alski (original)

al, not sure if this helps, but running a GTT 220 for over a year now, + intercooler for last 6 months, i am sure i have had a progressive reduction in mpg over last few months, i have also noticed a fuel smell as well when pulling out of garage in morning, nothing too drastic,
on the plus side more burbles and pops as well which i had put down to the Milly, but i think on reflection more fuel is going thru [tesco 99 mostly] due a manifold upgrade shortly so might look into state of tune after that

My power loss has been progessive too - my conversion is 9 x months old. My mpg has also been progressively reducing - currently only getting 21mpg. The smell of fuel is also very evident in the morning.

[Aberdeen Al]

Rolling road results as promised - sorry for the poor quality - will try the scanner at work tomorow!

[Paul Webster]

Seems like you've lost some power below 4900 espically below 3000, nice gain above 6k.

[Revolution Mini Works]

Paul... what do you think of this one?

[Paul Webster]

If only that torque would stay flat from 6500, cant wait to see the rotrex overlay this one thats where the power will just keep climbing.

Though it says flywheel power I presume this is actually horsepower at the wheels.

[Aberdeen Al]

Quote: Originally Posted by 1320autos (original)

Seems like you've lost some power below 4900 espically below 3000, nice gain above 6k.

It's been suggested if I put the 380's back on the car I may see a drastic improvement - although I was also told that I would need the 450's because of the cam.

This is all very confusing and frustrating - I just wish there was a definitive answer to my power loss.........................I doubt I'll ever get to the bottom of it though !

[Paul Webster]

Its frustrating you being up there and us being down here

Looks like you need to make a road trip

[Rigsey]

Quote: Originally Posted by 1320autos (original)

Its frustrating you being up there and us being down here

Looks like you need to make a road trip

I agree, you probably have a noddy problem that a MINI specialist could find pretty quickly - not what you want here I know

[Revolution Mini Works]

Quote: Originally Posted by 1320autos (original)

If only that torque would stay flat from 6500, cant wait to see the rotrex overlay this one thats where the power will just keep climbing.

Though it says flywheel power I presume this is actually horsepower at the wheels.

yes, those are @ the wheel numbers

the belt was slipping up top