[rondocap]

So my rear wheel 335i just has the bmw ppk, rated at 320hp and 337tq - although it's actually a bit higher as bmw seems to under rate the n54.

With oem summer rft's, I can pretty much hook up with no wheel spin in the dry, even from a stop.

I do like that. At what power level does 1st and 2nd gear become more problematic and harder to hook up? Over 400tq and 360hp?

[jokergerm]

i would say anything over 400 rwhp. When i had the JB3 i never had an issue, after i added the jb4 and meth, traction is an issue in 1st and 2nd even with a weak clutch i spin like a mother in 1st and some in 2nd

i assume i have about 450rwhp with the jb4, meth, dci and ar 3" dps

[taylors335]

your actually closer to 430 , if you look at terrys dyno results on fbo car with meth was 430

[Olde Irish]

I have runflats 265/30-19, Steptronic, JB4 over PPK, no other mods. Using map 5, traction in 1st and 2nd gear is an issue. I doubt I'm very close to 400whp.

[Sniz]

Originally Posted by Olde Irish

I have runflats 265/30-19, Steptronic, JB4 over PPK, no other mods. Using map 5, traction in 1st and 2nd gear is an issue. I doubt I'm very close to 400whp.

^ thats your issue

[Longboarder]

Originally Posted by rondocap

So my rear wheel 335i just has the bmw ppk, rated at 320hp and 337tq - although it's actually a bit higher as bmw seems to under rate the n54.

With oem summer rft's, I can pretty much hook up with no wheel spin in the dry, even from a stop.

I do like that. At what power level does 1st and 2nd gear become more problematic and harder to hook up? Over 400tq and 360hp?

I'm assuming you are talking about straightline WOT traction...and have a 6MT and not a 6AT. The 6MT has taller gearing...a final drive ratio of 3.08 vs the auto with a 3.46. My previous 335 was a 6MT and even with a chip and downpipes (~ 350 RWHP/TQ), traction from a dead stop was never an issue, except in the rain.

With the 6AT in my current 335, I had traction issues in first gear even when it was competely stock. Modulating the throttle in the 6AT was not as easy for me as modulating the clutch in the 6MT for some reason. Anyway with enging mods on my 6AT, traction at WOT was non-existent in the first two gears and even sometimes in 3rd and 4th and it became very annoying so I addressed it: With the traction control feature present in the Procede, changing to an increasing linear boost profile (http://www.e90post.com/forums/showthread.php?t=658117), LSD and Michelin Pilot Super Sports...I have 425 RWHP/TQ and I can floor it from a dead stop in 1st gear and get zero wheel spin .

[BMWsky]

Depending on how you drive, it could be an issue at stock levels. I have a 6MT and am FBO running Cobb Stage 2+, I can make traction an issue pretty much up to and into 3rd gear. Just personally speaking, I always try to be as smooth as possible, shifting, braking, heal-toe, etc, you'd be surprised at how well you can keep traction and still be fast if you're smooth enough. Granted, the more power you put down, the less margin of error you have.

[Olde Irish]

Originally Posted by Olde Irish

I have runflats 265/30-19, Steptronic, JB4 over PPK, no other mods. Using map 5, traction in 1st and 2nd gear is an issue. I doubt I'm very close to 400whp.

Originally Posted by Sniz

^ thats your issue

Yep, I know about those rf's. OP posted he has rf's with PPK and no traction issues. He didn't post size, could be 225/45-17. Actually, I found that just with the PPK traction was scarce in 1st and dicey in 2nd. I don't know what my rwhp or tq #'s are, just trying to let him know just the addition of JB4, whatever power level that may be, makes traction in the lower gears an option selected with the throttle. When these BS rf's wear out, Michelins will be mounted up.

[rondocap]

I have the Bridgestone 18 inch staggered sizes as I have the sport package. In the rain, can't go wot straight line at low speeds, but In the dry I can, basically hooks like the awd 335s I drove.

After my ppk, I may look to something like Cobb stage 1, a nice bump but hopefully I can retain some traction.

[Jeff@TopGearSolutions]

If you have traction you arent making enough power

[PR3CI5N]

Like others have been saying, the AT's have a lot more traction problems than the MT's due to the gearing. I have only a JB4 + DCI and I never launch from first because its useless. I can't even floor it in second gear or I'll spin at about 20mph once boost really kicks in.

[mithiral67]

with 400wtq with cobb 2+, i have traction issues in 1 and 2 every time I go wot. Its anoying and awesome at the same time. MT btw

[TotalBlackout]

6mt, Jb4, 3"***less dps, and dci. Traction in first and second is tough with my 19" v12s.

I'm sure I'm under 400hp.

[Bullet]

Cobb stage 1+, intake, and helix fmic and traction is a problem in first and a little in second. But even at stock levels i could make traction be a problem, all depends on how you drive.

[The Ghost]

When I was FBO + meth (procede), I would get sideways with a 3rd gear roll-on with the stock RFTs and open diff (6MT). Adding LSD would kept the car straight and stickier tires helped as well.

[dlbrooks18]

Originally Posted by rondocap

So my rear wheel 335i just has the bmw ppk, rated at 320hp and 337tq - although it's actually a bit higher as bmw seems to under rate the n54.

With oem summer rft's, I can pretty much hook up with no wheel spin in the dry, even from a stop.

I do like that. At what power level does 1st and 2nd gear become more problematic and harder to hook up? Over 400tq and 360hp?

Are you turning traction control completely off? Hold DTC for 3+ secs.. and are you MT or AT?

[Fedie]

Originally Posted by Olde Irish

Yep, I know about those rf's. OP posted he has rf's with PPK and no traction issues. He didn't post size, could be 225/45-17. Actually, I found that just with the PPK traction was scarce in 1st and dicey in 2nd. I don't know what my rwhp or tq #'s are, just trying to let him know just the addition of JB4, whatever power level that may be, makes traction in the lower gears an option selected with the throttle. When these BS rf's wear out, Michelins will be mounted up.

+
I mounted eagles f1 yesterday I hope to get more traction with those. RF aren't just good enough, I have V5 and DCI and just spin spin, even in 3rd.

[OpenFlash]

At 650whp, traction is only a real issue in 1st and 2nd. In 3rd, I get a little tire scramble when revs reach 5500rpm but it's controllable. The key is keeping a flat tq curve as it is torque spikes/humps that usually initiate wheelspin.

A good set of 265mm wide rear tires (RE11s) help of course.

[Sniz]

Originally Posted by shiv@vishnu

At 650whp, traction is only a real issue in 1st and 2nd. In 3rd, I get a little tire scramble when revs reach 5500rpm but it's controllable. The key is keeping a flat tq curve as it is torque spikes/humps that usually initiate wheelspin.

A good set of 265mm wide rear tires (RE11s) help of course.

Shiv have you tested any other high traction tires? any R comp or even stickier and lower tread wear than the RE11's?

[OpenFlash]

Originally Posted by Sniz

Shiv have you tested any other high traction tires? any R comp or even stickier and lower tread wear than the RE11's?

I've tested the 17" MT drag radials and they have tons of grip. If the road surface is good, they hook up in 2nd gear. One helluva ride

[themyst]

FBO + meth, 6AT, only gear with traction issues is 1st gear.

[thread killer]

Originally Posted by shiv@vishnu

I've tested the 17" MT drag radials and they have tons of grip. If the road surface is good, they hook up in 2nd gear. One helluva ride

me thinks your gonna start a yard sale out of the back end of that car on slicks and a heavy foot.


i know i am with my turbo m3..lol