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-   -   Winter upgrades (http://forums.m3cutters.co.uk/showthread.php?t=188596)

Winx 26th December 2017 04:08 PM

Winter upgrades
 
I have decided to do a bit of preventative maintenance on the m3 over the next few weeks whilst I have some time to fit the bits!

I will be dropping the rear end and fixing any corrosion, doing the RACP reinforcements (already has BMW floor replacement and injection so will epoxy plates on as I don't fancy burning the foam away, there was a lot of smoke when I was welding in the Safety devices cage/rear brace!)

My diff carrier already has red polybushes in there but I want to replace everything else. The car spends 90% of its time on track and I usually trailer it, but I would like it useable on the road so not going full aluminium rosejoints etc!

Recommendations on RTAB bushes etc - black polybushes? Thinking of Turner camber arms unless anyone thinks differently. Diff will be replaced with a wavetrac and 4.1 ratio (any recommendations on who to buy from?)

I will also be buying new coilovers, my HSDs need a refresh and might as well upgrade as the same time. Intax or Nitron - which would you go for and why? I run slicks on track (more for value for money than out and out pace!)

Thanks for your thoughts!

Winx 22nd January 2018 01:40 PM

Just to keep this up to date, have ordered Nitrons from Spires and he recommended oem everywhere apart from diff cradle mounts and rtab which will be powerflex black.
Wavetrac diff ordered from Martin with 4.1 ratio, eibach camber arms and all new nuts and bolts from bmw.
Rear end has been reinforced with reddish plates, after investigating with a keyhole camera the only bit of expanding foam was in the right rear mount so that has been glued on rather than the others which are welded.
Need a few weekends now to get it all back together and up to Matt's for suspension setup!

billyboym3 22nd January 2018 02:02 PM

Quote:

Originally Posted by Winx (Post 2482577)
Just to keep this up to date, have ordered Nitrons from Spires and he recommended oem everywhere apart from diff cradle mounts and rtab which will be powerflex black.
Wavetrac diff ordered from Martin with 4.1 ratio, eibach camber arms and all new nuts and bolts from bmw.
Rear end has been reinforced with reddish plates, after investigating with a keyhole camera the only bit of expanding foam was in the right rear mount so that has been glued on rather than the others which are welded.
Need a few weekends now to get it all back together and up to Matt's for suspension setup!

Wow nice upgrades :)

Ripper46 22nd January 2018 02:39 PM

Nice work, will make for a great trackday car, especially once matt sets it all up :thumbsup:

Winx 22nd January 2018 10:13 PM

Quote:

Originally Posted by billyboym3 (Post 2482588)
Wow nice upgrades :)

Thanks excited to try it!

Winx 22nd January 2018 10:14 PM

Quote:

Originally Posted by Ripper46 (Post 2482605)
Nice work, will make for a great trackday car, especially once matt sets it all up :thumbsup:

That's the plan!

Ripper46 22nd January 2018 10:40 PM

Hopefully see you at silverstone March

Pdelamare 22nd January 2018 10:43 PM

Sounds good, looking forward to seeing it.

Nigt3 22nd January 2018 11:30 PM

This winter purchased and fitted is drexler 3.9 diff, not fitted is carbon roof also done valve clearances and vanos is in bits with all beisan parts lying on bench so still work to do before spa in March!

Ripper46 23rd January 2018 05:52 AM

I have drexler diff in mine awesome piece of kit

Pdelamare 23rd January 2018 12:34 PM

lol, Drexler diffs all round then :)

What ramps/lock up % has everyone gone for?

Ripper46 23rd January 2018 03:03 PM

Quote:

Originally Posted by Pdelamare (Post 2483252)
lol, Drexler diffs all round then :)

What ramps/lock up % has everyone gone for?

Struggling to remember, Schirmer built mine for one of his e46 builds but guy never used the diff and I had it brand new never used :thumbsup:

Winx 23rd January 2018 05:57 PM

booked Silverstone on 18th last night so have to have car done now :muttley:

Look forward to seeing you all

Nigt3 23rd January 2018 06:20 PM

My diff was built with 70% lockup on power and 40% on coast with 16drilled clutch packs in total, what ever this means, I don't know!

Pdelamare 23rd January 2018 06:26 PM

Quote:

Originally Posted by Ripper46 (Post 2483341)
Struggling to remember, Schirmer built mine for one of his e46 builds but guy never used the diff and I had it brand new new used :thumbsup:

Jammy git :eek:

Quote:

Originally Posted by Winx (Post 2483469)
booked Silverstone on 18th last night so have to have car done now :muttley:

Look forward to seeing you all

Good move, bring your snips again, I might need them. :D

Quote:

Originally Posted by Nigt3 (Post 2483502)
My diff was built with 70% lockup on power and 40% on coast with 16drilled clutch packs in total, what ever this means, I don't know!

70% :eek: That sounds high, does it cause tyre chirping during tight slow turns, like roundabouts or junctions?

Nigt3 23rd January 2018 06:45 PM

Quote:

Originally Posted by Pdelamare (Post 2483511)
Jammy git :eek:



Good move, bring your snips again, I might need them. :D



70% :eek: That sounds high, does it cause tyre chirping during tight slow turns, like roundabouts or junctions?

Don't know as it's still on the ramp (vanos stripped) can't really wait to drive it!! Wish I could upload photos of the diff build he sent me but I really am computer r3tarded


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