[Jeff@TopGearSolutions]

If you are getting a lot of wheel hop, you need to get out of the throttle, that is like a heart attack for drivetrain components.

If you are doing 20 or 40 MPH rolls, try brake boosting, it will load of the drivetrain so there isn't as much shock compared to a straight WOT punch. Keep in mind brake boosting has its draw backs on the internals of the drivetrain and brakes. There is a give and take for making power and putting it down.

[ajsalida]

How much more does a vert + AT weigh vs non vert + MT?

[Jeff@TopGearSolutions]

Originally Posted by ajsalida

How much more does a vert + AT weigh vs non vert + MT?

AT Convertible can tip the scales depending on options and year from 3800 to almost 4000.

My E92 Coupe MT weighed 3490.

The verts are boat anchors.

[ajsalida]

Originally Posted by Jeff@topgearsolutions

AT Convertible can tip the scales depending on options and year from 3800 to almost 4000.

My E92 Coupe MT weighed 3490.

The verts are boat anchors.

Whoa. That's part of the problem right there.

[Jeff@TopGearSolutions]

Originally Posted by ajsalida

Whoa. That's part of the problem right there.

If they are using the same axles maybe, but aggressive driving and especially wheel hop will grenade axles and other components. Anytime I got wheel hop in my car, I got out of it. Even at the track, it's just not worth it.

[scottp999]

Originally Posted by sammy_0559

why didn't you buy a set from an ebay salvage car? thats where I've been getting my replacements...LOL

When I was looking (I think 2010 or 2011) there were none available. The MT cars have different size half shafts than the AT's, and are more rare to begin with. I looked for a couple of months at various places, and websites to find a set of salvageable MT axles. No luck at the time.

There was a member here who was going back to stock, and we planned to swap my stock half shafts, for his DSS upgrades. We got his car up on the lift and had a hard time getting the "one time use" nuts off the end of the axles. The person that put the DSS shafts on did not spend the $10 for new ones. Because they are staked, they destroyed the threads on the end of the half shafts, so I passed.

[ajsalida]

Originally Posted by Jeff@topgearsolutions

If they are using the same axles maybe, but aggressive driving and especially wheel hop will grenade axles and other components. Anytime I got wheel hop in my car, I got out of it. Even at the track, it's just not worth it.

Sure. Heavier, less rigid chassis, maybe prone to more wheel hop too. But your point is taken, wheel hop bad.

[cn555ic]

Since you purchased salvaged parts, there is a possibility the part has been already compromised as you have no idea how many miles the axles has gone through...

[sammy_0559]

Originally Posted by cn555ic

Since you purchased salvaged parts, there is a possibility the part has been already compromised as you have no idea how many miles the axles has gone through...

$95 fix aint bad

[Vigorous]

OP - I thought you were getting Vargas turbos?

Sorry to hear about your issues. Now I'm worried about my AT and axles after the turbo upgrades soon.

[Vigorous]

What kind of power are you putting down without Meth?

[sammy_0559]

Originally Posted by Vigorous

What kind of power are you putting down without Meth?

I couldn't wait, if i waited id be without my car till this day. If my stock turbos didn't blow i would have went Vargas. but now I'm wishing i waited for stage 3's lol.. I have no clue what I'm putting down. Cars with my same mods on n54tech broke into lower 500s, haven't had a chance to dyno I've only had my car for a little over a week and now its back at the shop lol

[robc1976]

Originally Posted by sammy_0559

I'm FBO,RB's, 100% Meth cm14, Walbro, ISO g5, BMS flash. and i raped my axle within a week of getting the car back.. 2nd Fastest e93? other than the Singled turbo one Needless to say i need LSD.

I have the same mods as you also, getting ready to order the following hope it helps:

Wavtrac LSD
BC BR coilovers
M3 Upper & Lower control arms
H&R sway bars (still researching).

[orionredwing]

Originally Posted by sammy_0559

Maybe an LSD would solve all my issues and some Diff bushings i get wheel hop and open diff tourqe

Wow, I was really surprised to hear you broke your 3rd. Then I read above. You need to get an LSD installed asap Sounds like you spent a lot of money on mods and repairs. To NOT have an LSD installed with all the power, and your love of hard launches, just doesn't make sense (scratches head). It's a night and day difference.

[Exzackt]

Originally Posted by cupertinosteve

OP - sorry to hear about that. Good luck with the next set.

For what its worth, I've had no issues with my setup. I am mostly doing highway pulls in 3rd and 4th. I've got a wavetrac LSD, stock axles and suspension. I'm also running 255 street tires, so I mainly break traction before anything breaks.

Next year, I'll do my 1/4 runs (hopefully the new NHRA rules kick in for Sacramento) and see what happens.

The divfab stuff looks really nice.

Sleeper With your setup I would be quite surprised running into you on 280



Maybe the extra weight from the e93 is putting more stress on the axles?

[sammy_0559]

Originally Posted by orionredwing

Wow, I was really surprised to hear you broke your 3rd. Then I read above. You need to get an LSD installed asap Sounds like you spent a lot of money on mods and repairs. To NOT have an LSD installed with all the power, and your love of hard launches, just doesn't make sense (scratches head). It's a night and day difference.

I was seriously about to buy one. but the dude bailed on me

http://www.e90post.com/forums/showthread.php?p=12866259

Like i had the cash and everything I'm gonna buy one soon, when i can gather $1200 to spend. Im only 18..haha

[zeenon53]

I'm shocked that you could break a shaft from a 20mph roll. Your car must have been bouncing like it had hydraulics. I would imagine that most of the 500lbs extra the vert gets is over the rear wheels. Why were you trying to do 20mph highway rolls anyways? Where you trying to do a rolling burnout or something? This isn't a little ricer car and from the looks of your sig, your treating it like one.

[sammy_0559]

Originally Posted by zeenon53

I'm shocked that you could break a shaft from a 20mph roll. Your car must have been bouncing like it had hydraulics. I would imagine that most of the 500lbs extra the vert gets is over the rear wheels. Why were you trying to do 20mph highway rolls anyways? Where you trying to do a rolling burnout or something? This isn't a little ricer car and from the looks of your sig, your treating it like one.

I dunno.. lol i just installed the Upgraded LPFP. and id always loose fuel pressure immediately going into limp mode at 20mph, so i tried it it worked great tried it again. and axle broke. it wasn't hopping i usually do get hop. but the rear tires are new, when it griped the road it tore the axle shaft. and no its not a ricer.

[GeorgiaTech335coupe]

Very impressive failure. Pat yourself on the back for that. Have you considered trying to upgrade to M3 parts? M3 rear end with LSD, M3 half shafts (much more robust than 335)? The big hurdle seems to be the driveshaft (length plus diff output from tranny and input into diff). I've been contemplating this for my MT. Going to see if DSS can make a driveshaft for $1000. It would be much much cheaper than going after market LSD and DSS axles. I'm not sure what the differences for AT would be but might be worth looking into. Good luck.

[tinnsoldaten]

Any news on the DSS upgraded halfshafts for AT car ? Anyone out there provide upgraded halfshaft for AT cars ?

[Sick335]

I'm an honorable member of this clan

[Sick335]

Here are mine: