335xi Auto Trans

Remy · 08-29-2011, 06:50 AM

Hi I've been told from a few shops that the auto transmission can't take much more power then a flash and bolt ons safely. Does anyone know how much power it can handle for a daily driver? I have cobb, IC, DCI, exhaust and going to install DP's when stage 2 is available. I was thinking meth kit but am concerned about reliability.

zerep1 · 08-29-2011, 10:30 AM

the transfer case is really what suspect all the bolts and meth on stock turbos is not going to blow the tranny(input joke here) unless you add nitrous

Turkeybaster115 · 08-29-2011, 01:07 PM

6hp19 is rated at 255-295ft/lbs max input torque. Its used in the 330I/335I. Our cars are dyno at 265wheel horse power, and 275ft/lbs to the wheels stock. So we are already at the limit. Now, with upgraded trans cooling via a tranny cooler, or an extra radiator, like the factory performance kit has, and you can handle 325wtq, cuz I think the kit ups the power by 50whp/50wtq, with the factory warranty. So don't go higher than 315whp/325wtq.

Remy · 08-29-2011, 08:41 PM

thanks for the info

08-29-2011, 06:50 AM	#1
Remy Private 3 Rep 66 Posts Drives: BMW, Mitsubishi Join Date: Aug 2010 Location: Toronto iTrader: (3)	335xi Auto Trans Hi I've been told from a few shops that the auto transmission can't take much more power then a flash and bolt ons safely. Does anyone know how much power it can handle for a daily driver? I have cobb, IC, DCI, exhaust and going to install DP's when stage 2 is available. I was thinking meth kit but am concerned about reliability.
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08-29-2011, 10:30 AM	#2
zerep1 Lieutenant 40 Rep 464 Posts Drives: 335i E90, 328i F30, 230i G42, Join Date: Nov 2010 Location: Tampa, Florida iTrader: (1)	the transfer case is really what suspect all the bolts and meth on stock turbos is not going to blow the tranny(input joke here) unless you add nitrous
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08-29-2011, 01:07 PM	#3
Turkeybaster115 Banned 75 Rep 1,543 Posts Drives: 335I Join Date: Jun 2009 Location: Illinois iTrader: (2)	6hp19 is rated at 255-295ft/lbs max input torque. Its used in the 330I/335I. Our cars are dyno at 265wheel horse power, and 275ft/lbs to the wheels stock. So we are already at the limit. Now, with upgraded trans cooling via a tranny cooler, or an extra radiator, like the factory performance kit has, and you can handle 325wtq, cuz I think the kit ups the power by 50whp/50wtq, with the factory warranty. So don't go higher than 315whp/325wtq.
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08-29-2011, 08:41 PM	#4
Remy Private 3 Rep 66 Posts Drives: BMW, Mitsubishi Join Date: Aug 2010 Location: Toronto iTrader: (3)	thanks for the info
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