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with a full exhaust , jcw filter and a forge IC installed.
I did a ecu tune and the only thing we cant figure out is in first and second gear as the car accelarates and goes to the rpm that it reaches its top power , suddely you feel the power to be cut off a bit , but as you change gear it starts to accelerate hard due to the high torque again. Only in first and second gear i got this problem mostly. So is the a limiter for torque or something and can it be removed?
the car with stock ECU does this as well, but I wonder if the tune may have accentuated this. Are you disabling both DSC and ATC? I don't think the ATC would give such a feeling as it really only backs throttle enough to reduce wheel spin but that also could be overreacting with the tune. I think monitoring air/fuel ratios while on a dyno could be helpful. I wish I could be of more help. Best of luck with this!
Yes there is a limiter. I have no idea about the specifics on it though, but it's very evident in my car. On my US spec car, its only in 1st though.
You can see it in the boost as well, it only boosts ~11psi max in 1st, shift into 2nd and the car takes off and boost is ~18psi. So, there is something that limits the boost it would seem. My car is tuned, so its more evident than it was when stock. When I race my friends stock R56, we are always dead even through first, then I shift into 2nd and I become car lengths ahead.
The limiter is there to prevent excessive wheel spin when people are starting from a stop. So, when you have some moron who has never driven a high torque FWD car, they don't go flying into traffic from torque steer when they start off from a start. Little bit of cover your ass on MINI's part. I'm sure it's easily defeatable as long as the map is found for it. But to be honest...with 240 ft-lbs to the wheels, I kinda like having a limiter in 1st...even if it is a little boring. Cuz with it all on tap in 1st, I'd be doing nothing but roasting tires.
__________________ 2006 MINI Cooper S JCW GP--GP#1599 -Stock...I think?? 2008 MINI Cooper S R56--Astro Black/White--Gone -JCW Turbo | Aquamist HFS-3 Meth injection | RMW AP Tune | Helix FMIC | DDM CAI | Riss Racing Catless DP+Invidia Exhaust
it doesnt spin if the surface is clean, like at the drag strip. i have 17/225/45's on my car and they are mx's they have plenty of traction with full power in first. The main difference i have had with the unichip is 1st doesnt seem limited like it was before
iThe main difference i have had with the unichip is 1st doesnt seem limited like it was before
you just contradicted yourself. It WAS limited before you overrode the stock parameters with the unichip. It's possible that it is still limited - the limits could be higher now.
I could spin my 16" runflats in third gear with the unichip. So of course you should spin in first with ANY tire you can fit. (I had daily CELs for a long time also but that's a different story)
__________________ Laser Blue/White MCS delivered 3/8/07. Off lease 5/17/09.
Tigger - 2009 JCW delivered 4/27/09, FMIC, boost gauge, Striped and tinted
Alta AccessPORT tune - 267wtq & 219whp
MINI #3 - 2011 White Silver/Black MCS. Delivered 5/11/11. All glass tinted;bobcat pads;OZ Ultra Leggeras;205/50/16 Starspecs
EXT/INT: M7 vortex scoop gloss black, bimmian HID interior lights,Stubby antenna,6000k h13's, currently Blizzak LM-25's, abut to plasti dip
Laser Blue/White MCS delivered 3/8/07. Off lease 5/17/09.
