ATTN: 6 cyl TI bretheren - Rear Subframe Question

[collink]

All right guys. I'm getting close to throwing an S50 into my drift car.

What kind of changes to the rear end did you guys make? Obviously, I'm grabbing an M coupe or Z3 M diff, and possibly axles (not sure if they'll fit or work). Did you have to reinforce the mount points for your subframe?

Keep in mind: This car WILL be driven like it was stolen.

Thanks in advance.

[budget76]

I have nothing done but bushings and the like. Well, that, a LSD diff, then sway bars and the like but I haven't re-inforced my subframe. I'll be pulling the trunk apart to check it this summer

[chrisbec]

check out this link, it has good info about how to beef up the rear end...

http://www.318ti.org/forum/showthread.php?t=21516

[Philly]

Mcoupe diff + E30 halfshafts here. Thats it.

I drive my car like I stole it, never an issue.

its the front thats a little squirrley.. 6cyl springs up front are a must IMO, although I havn't had the coinage to do so, it limits throwing it around like you would with the 4banger... but having more WHP than the m44's BHP makes up for it

[campaiar]

Originally Posted by Philly

Mcoupe diff + E30 halfshafts here. Thats it.

I drive my car like I stole it, never an issue.

its the front thats a little squirrley.. 6cyl springs up front are a must IMO, although I havn't had the coinage to do so, it limits throwing it around like you would with the 4banger... but having more WHP than the m44's BHP makes up for it

+1.

Medium case diff with the larger half shafts (E30 or Z3). LSD if you can afford it.

6cyl springs are pretty much required in the front.

[collink]

Heh...I called Turner yesterday to see if they offered any kind of subframe reinforcement for our cars. They said they did a 6cyl swap 11 or 12 years ago and never saw any metal fatigue or problems from the subframe.

Obviously I'll want to do beefier axles and an LSD. Was just making sure that I won't have any problems.

I was looking at Ground Control coilovers (their full suspension, not the ****ty sleeves). I was going to get rears from an M coupe and M3 fronts. Obviously better brakes as well.

[FMD]

ti / e30 rear subframe doesnt have any power handling issues. there's no benefit to going to a different rear other than gaining some adjustability settings

[collink]

Right on. How low can our cars go before our rear suspension starts having problems? Front's a simple McPherson strut, so I assume the standard tricks will work for that?

[tiFreak]

my rear end is only lowered an inch and the toe and camber are both way out

[campaiar]

I haven't seen/heard of any issues with broken rear subframe parts due to excessive torque application. I know the Z3's have issues tearing apart the floor pans around the diff, but nothing known on the TI.

The //MZ3 rear end is slightly beefier, but isn't a must have IMO. Given the cost of upgrading the entire rear suspension to the //MZ3, unless your building a track car its probably not worth it for the street.

[bubela]

Been beating on my ti for a little bit now with a turbo'd M50. Blew up the original getrag trans, but haven't noticed any damage to the rear suspension components. yet..

[KINGAMR]

I installed all AKG bushings in the rear but haven't finished my swap yet to get a chance and beat on it. The same setup still looks like new in my e30 a year later.