Decided to setup a dyno day for the Mini before the cover gets put on for the winter. I'm running a full Mini-Madness Stage 3 kit on 93 octane. Using the math that the dyno guy recommend by dividing the HP at the wheels by .86 it would tell me that HP is around 227 which is close to what Mini-Madness is suggesting (230-235hp on their website); this is also assuming that the numbers on their website are not wheel HP numbers. Nonetheless, just wanted to share and see if anyone else has had better or worse numbers with a similar setup. He also noticed my A/F was a bit off and that could be causing some HP loses. Something to get tweaked in the spring I guess. Jeremy

 

Try getting the car tuned, you'll see some gains im Sure.

Those numbers are low...especially considering the madness stg 3 kit is almost $4k.

 

Don't know what MM Stage 3 kit consists of but wow! that is 4hp more than when my GP was stock. Tune will gain more HP FOSHO.

 

thanks. seems i've always run into this with the 'boxed tuning' solution with my past cars and have seen some pretty impressive increases once a custom tune was done. was just hoping to avoid going to get the custom tune so more time could be spent over the weekends for AutoX in the spring time :-) . guess i'll be making some calls in the spring time. thanks again!

 

Uh Scary Lean.

 

I was thinkin the same thing

 

I agree that is a bit lean, are you running the madness software?

 

Wouldn't that be rich? It's air/fuel. As the y value declines it means there's less air for each unit of fuel.

isn't it:
rich=too much fuel
lean=too much air

 

id say: way too lean for comfort
the exhaust temperature should be extremely hot

back when i was running ~12-12,5 my exhaust temp. hit about 920°C/1688°F ( at about 7200rpm )
that wasn't a very good idea -> exhaust valve fell of

 

Does the Mini Madness kit include bigger injectors? If so, what size?

 

Looks typical for the Madness Stage 3 [read: less power than they wanted you to believe you were getting]

Get that sucker tuned, your AFR's are too lean. The MINI prefers AFR's [running E10 assuming] of ~11.5:1. This would make the car bulletproof on the track.

FWIW, MINI drivetrain loss is approx 12%, so multiply wHP by 0.88% to get approx crank power.

Cheers,
Ryan

 

that A/F ratio graph is ridiculous. Honestly I believe you could have made more power and had a safer A/F without any sort of tune...

 

Those numbers look a little on the weak side :(

AFR: Dynojet's AFR have a tendency to read a couple of points off so i would get it checked somewhere else just to make sure. If it's reading right, then the car is too lean for 93 octane.

RPM: At over 6800rpm, your car is losing a lot of power... this could be due to the cam or you're running out of injectors (or Both).

 

Running lean cost me an engine. I burnt a hole in # 2 piston and the head. that was a real bummer. Thank god the wife was driving it when it happened.

 

thanks guys. going to contact a local tuner next week to chat with them. figure I may pick up a set of JCW injectors as well but will wait to talk to him. Thanks again!