S38B38 harmonic damper help

Fri Apr 15, 2016 5:01 pm

Hi all, my crank harmonic damper is heaver than my flywheel (S38B38) should I get it lightened? I looks like it's made from solid steel with no rubber.

Fri Apr 15, 2016 8:40 pm

more to the point have you got it running properly yet?!

Fri Apr 15, 2016 9:50 pm

Lol by running properly do you mean stripped it down and started over, is so then yes

Sat Apr 16, 2016 8:52 am

Definitely not

Sat Apr 16, 2016 8:39 pm

DanThe wrote:Definitely not

I removed the AC pully and had it balanced that's all. It just seemed strange that it was so heavy but I'v heard most m power engines have the heavy damper so who am I to argue with the M devsion

Sun Apr 17, 2016 10:03 am

Its heavy to smooth out crank vibrations at high rpm

Sun Apr 17, 2016 7:34 pm

get the bottom end re balanced with that new flywheel.

I've got the exact same flywheel to fit next week to my M5, should be a nice improvement over my noisey dual mass.

Mon Apr 18, 2016 8:45 pm

That flywheel will be great, where did you get it from?

I have one on an S50B32, feels like an extra 50 horses on the arse dyno

Mon Apr 18, 2016 9:00 pm

tomson wrote:That flywheel will be great, where did you get it from?

I have one on an S50B32, feels like an extra 50 horses on the arse dyno

Hay there Tom, it looks like a TTV one, check out the ones from UUC, USA. I have experienced major customer service problems with TTV.

Tue Apr 19, 2016 8:03 pm

I got mine from David Olias, its going on this weekend along with a 3.6 clutch i'm hoping it should be a nice improvement

Tue Apr 19, 2016 8:03 pm

as to who made it i'm not sure but i like them!

Thu Apr 21, 2016 7:41 am

The flywheel is a TTV for a S38B36 rather than that dull mass beast! Have you fitted yours Simon? Did you use the standard 3.6 clutch? I was thinking of getting the sport one but haven't decided yet. I had the harmonic damper balanced alone.... I will be removing the engine in the winter for some upgrades so I'll balance the bottom end later

Thu Apr 21, 2016 5:27 pm

yes i've just got a standard sach 3.6 clutch along with the bolts and flywheel bolts as its all different lengths to 3.8 stuff.

My Dual mass has got noisey, i'm hopefully getting it done on Saturday with a bit of help from Barry, can't wait!

Thu Apr 21, 2016 10:40 pm

Yea I got the shorted bolts from BMW for a silly price lol I'm looking forward to hearing about how it it feels to have a very responsive S38 its going to be bonkers

Thu May 05, 2016 9:50 pm

Simon13 wrote:get the bottom end re balanced with that new flywheel.

I've got the exact same flywheel to fit next week to my M5, should be a nice improvement over my noisey dual mass.

Whaat,,,, the DM flywheel is well known for being silence .. vs the SM +rattle clutch