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My inadvertent 944 turbo project

ORIGINAL: Indi9xx Terrifying isnt the word, it's been a reasonably dry week, but trying to fine tune the mapping for road driving has seen rear end steer one way as you hit the throttle and the otherway as you let off, and not through any exciting wheel spin, just through variable rear end geometry! It certainly "wants to go" though. Some bushes should sort it out, and a transmission mount should tighten it up.. We have no problems with the standard article, it works well even in cars with absolute monster torque.
Looking forward to getting the car back. It should be worlds apart from the car I left behind in March. Are 968 M030 ARB needed in your opinion Jon? (I'm only considering this as the bushes are being replaced.) I don't want to make the car track focused or super firm. It needs to be comfortable enough for weekend use. 'Triangular stiffening brackets' were suggested to me. Much cheaper and may help firm up the car but not make it uncomfortable? IS there somewhere I can read about these?
 
For what it's worth I would strongly suggest against the "stiffening brackets" used along with the 968 M030 (30mm) ARB. They increase understeer to the point it's almost comical. Mate of mine likes them with his standard 26.8mm front ARB though.
 
Honestly, anyone with a bit of inspiration and basic mechanical sense could make some...
 
ORIGINAL: TTM For what it's worth I would strongly suggest against the "stiffening brackets" used along with the 968 M030 (30mm) ARB. They increase understeer to the point it's almost comical. Mate of mine likes them with his standard 26.8mm front ARB though.
Sorry, I should have been more clear, I meant either mo30 arb or the brackets. Definitely not both.
 
ORIGINAL: TTM Honestly, anyone with a bit of inspiration and basic mechanical sense could make some...
Yes indeed. I suspect that 'KLA Industries' is a fellow with a small metal press who knows a fellow with a passivated business.
 
Yes, that has jogged my memory too Jon'. Can you have a look at my gearbox mounts too please mate? Also, I still seem to have that annoying battery drain [:(]. I forgot to mention it to you when I dropped the car off to you last Saturday [8|][:)] Yes Terry, '44 dropped off at Jon's for the Winter and a few more odds and sods [;)][8D][:D]
 
No problem Pete, putting together a bit of a snagging list of bits I have found already. Not keen on the non standard anti roll bar hangers, the Porsche ones flex for a reason :eek:)
 
Still not had the car back yet. :( My wife is expecting any time now so I hope the car arrives before the baby otherwise it may be a very long time before I'll be able to collect it and enjoy it...:(
 
Jon, can you email/pm me an email address where you can be reached? I did try via the forum but not sure if it's working yet.
 
Spoke to Mark a little while ago - hoping to collect the car next week. Issues related to seized/stuck bolts now sorted.
 
Was wondering what I think I'll enjoy most about the car (excluding performance improvements) Have heard engine mounts make a big difference to how the car feels. Transmissions mounts were replaced too so that should contribute towards the 'like new' feeling I was chasing. But I think the biggest change Im hoping for is from the steering and gear changes. Both were vague. The steering was not responsive and was anything but pin point. You could turn the steering wheel a little and this wouldn't transmit to the wheels. The gear changes were sloppy and there was plenty of left to right movement in the gears. I'm hoping for much more precise and direct response from the steering. Never had a short shift kit fitted before so not sure how much the shorter the throw is and what difference it'll make in the real world but if the gear changes are tight and smooth, that should be good enough. Fingers crossed for next week...
 
JMG fitted new engine mounts and a short shift kit to my car and it made a huge difference. Money well spent. Enjoy!
 
Ewan's gearshift is very impressive - it almost feels like a completely different lever/linkage/gearbox to a normal 944. My S2 has a JMG steering shaft - the steering was much improved.
 
My S2 has a JMG steering shaft - the steering was much improved.
Is this a different JMG spec part to the OE part? It is a component which I always considered works at the edge of its design envelope, but with careful optimising at assembly was OK. George 944t
 
We remanufacture a standard OE part but using a new cross joint without bearings from the original OEM supplier but using a higher temperature and closer tolerance bearing (8 per shaft) which are pressed and staked in the original way. The original shaft joints were specified for left hand drive use and the right hand drive specified with the same joint specification as a left hand drive, with just a different length shaft... Unfortunately, the right hand drive shafts experience MUCH higher temperatures, which causes the seals to shrink and the grease to boil out of them, run dry and wear out. The bearings we use are much higher temperature in both the grease they are filled with, but also the seals used, so they should outlast an original Porsche shaft. Also because we remanufacture them, we can provide the same service to cars where the shafts are no longer available, such as for the Carrera GT, 924 turbo, 924 NA in both left and right hand drive, as well as the 944 right hand drive ones which are still available from Porsche.. however, just a couple of years ago, all models are lhd/rhd were available, which is part of an ongoing program with Porsche deleting older products, so soon the OE ones will not be available either, especially as Porsche centre on higher volume cars. Which is why we originally invested in the upgrade, not so much for the 944, where it is needed, but due to other models no longer being supported by Porsche.
 
Jon, thanks, that answers a lot of questions (including the important one of where to find a supply of this part in future). Just speaking of RHD / LHD, I always felt the Gear Lever was LHD biased (like many 70's design German cars), so I have my own RHD conversion with a step in the lever to bring it 30mm to the right. The gaiter covers this step. Its a hand span from the Steering wheel. George 944t
 
Some more pictures [link=http://s945.photobucket.com/user/jabrielraja/library/944%20Turbo?sort=3&page=1]here[/link] courtsey of Jamie and Mark at JMG. Hopefully will have some more in the next day or two.
 
Now that you have had the car back nearly a month, what are your first impressions? Does it go like an absolute rocket or has it just whetted your appetite to take it even further. I imagine it's already quite a handful on our damp greasy roads at the moment - oh and PICS PLEASE [:)]
 

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