Centre Gravity and TLC on your fine German automobile

Discussion in 'F80 M3 Saloon / F82 M4 Coupe / F83 M4 Convertible (2014-present)' started by dustybones, Feb 9, 2019.

  1. 11 Feb 2019 at 7:51 AM #61
    MaximumBob

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    Putting cost aside.
    The advantage of having your car aligned by someone who you are confident knows what they are doing...is that you have a baseline feeling for exactly how your car should drive.
    Compared to my previous E92 M3 (which was set up perfectly) my brand new M4 never gave me the same confidence, there was alway an underlining feeling that it was trying to chuck me into the scenery. An alignment (even by BMW) transformed the car. The differences are almost always in the toe settings, for instance even a few minutes difference in rear toe side to side is enough to make any rear wheel car drive like a bit of a dog.
     
  2. 11 Feb 2019 at 1:26 PM #62
    Dave1

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    it’s not rocket science as long as they’ve got a hunter machine there designed for idiot tyre fitters to use they tell the operator what to do in a step by step basis with coloured pictures :muttley:
     
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  3. 11 Feb 2019 at 1:33 PM #63
    LDizzle

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    Booked in with Northampton motorsport this week for full Ohlins R&T and hack engineering top mounts installing/geo.

    I’ve heard good things about CG too but I work in Northampton sometimes so it was simpler and they didn’t need the car for a day and a half and worked out a third of the price.

    Both places seem pretty good :D
     
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  4. 11 Feb 2019 at 1:38 PM #64
    Rick448

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    True, but CG don't just set the car up as per BMW figures, they speak with the customer and make the car do what they want (within reason of course) They take you on a test drive and report of the existing set up, and ways of improving things, as well as additional drives to make sure things are improved. Things like set up for U/S or O/S bias as well as traction from the driven wheels.
     
  5. 11 Feb 2019 at 1:49 PM #65
    Dave1

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    sorry I meant the above in reply to maximumbobs post not digging at cg directly
    Although I wouldn’t be paying £525 plus vat for alignment but that’s just me

    Funnily the race car builder I used to use and Simpson’s used to get pretty good results and with string lengths of timber lol
     
    Last edited: Feb 11, 2019 at 2:15 PM
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  6. 11 Feb 2019 at 2:10 PM #66
    TerryLloyd

    TerryLloyd On the path

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    I was watching a touring car team set up a car with two poles some fishing line and a ruler (old skool :))

    I corner weighted my seven with 4 sets of bathroom scales - think the M4 would crush them though
     
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  7. 11 Feb 2019 at 2:41 PM #67
    DeadEye

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    My mate works for a Porsche rally team - old Porsches now and Subaru etc before.

    He does the alignment with two axle stands, a piece of string and a tape-measure. Once he explained how he does it, I agree with him "it cannot be wrong".

    Constantly having to fix alignment issues after having it done on one of those stupidly expensive alignment machines.
     
  8. 11 Feb 2019 at 2:58 PM #68
    Ashway

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    I’ve had several Porsche 911s done by Chris at CG. It was an education talking to him and him telling me how far out my geo settings were just by visual examination, differences in gaps between top of tyre and wheel arch, feathering on the tyres. He knows his stuff. Once on the machine what he’d told me based on visual examination was proved to be correct. Once he’d tweaked things the car was genuinely transformed.
     
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  9. 11 Feb 2019 at 4:20 PM #69
    MaximumBob

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    I set up my old 1989 911 turbo (after a shop fitted sports shocks and ballocked the alignment) with a dunlop alignment gauge, string, a ruler and a camber gauge.
    A bit tedious...make adjustments to the corner weights, go for drive....adjust the tracking, go for a drive...repeat until the car felt right and the numbers were within spec.
    But I was pretty pleased with the result given that I had no scales to measure the corner weights...I took it back to a Porsche Indy who measured the corner weights and they were spot on with me in the car.
    But old Porsches were very sensitive to small alignment changes...you'd have no chance trying to do the same with an M4.
     
  10. 11 Feb 2019 at 5:35 PM #70
    Rick448

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    Maybe some experts need to tell CG they are doing it all wrong, I see an opportunity here. I am going to buy some planks of wood, bathroom scales, string and some red and green crayons. Anyone want alignment doing? How does £100 sound? :D
     
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  11. 11 Feb 2019 at 9:06 PM #71
    2002tii

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    ....Sounds to me like a man who would really appreciate the work CG do.
    I think CG share a great relationship with their customers because they ask what you require, as opposed to "these are the manufacturers setting, this is the tolerance, if the numbers on the Page are green, go to till" - Next.:rolleyes:
    CG take time to explain the options, what they are doing, whereas a Main dealer, pretends to understand, makes stupid suggestions, and does not really care.
    tii
     
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  12. 11 Feb 2019 at 9:35 PM #72
    JimBMW

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    Got my Porsche done at CG, it transformed the car. However, it was a tad expensive, so I haven't been back, not since I got another car re-aligned and that was also transformed, but was included in the normal service cost.
     
  13. 11 Feb 2019 at 9:39 PM #73
    ADL

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    I don’t think anyone is knocking cg work. Just they are wasted on a stock car.
     
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  14. 12 Feb 2019 at 6:36 AM #74
    Ultimike

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    Which coilovers did you go with?
     
  15. 12 Feb 2019 at 6:42 AM #75
    jada07515

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    Exactly my point mate - coilivers yes, springs no
     
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  16. 12 Feb 2019 at 10:05 AM #76
    Tengocity

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    Very happy with them. As most folk who fit coilovers say, they've transformed the car. Having said that, I do think a large part of that was the alignment done afterwards, as the rear toe and cambers weren't right, which is frustrating given I bought the car new only a few months prior.
    Its currently set to ACS recommendations for ride height, bump and rebound, but may look to raise it a tad, and have it corner weighted. I've player around with the bump and rebound a little, but I think the ACS have got them about right for the road on 19s. When i go back to 20s (on winters now) I'll possibly soften the bump one click.
     
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  17. 12 Feb 2019 at 11:09 AM #77
    Banksie

    Banksie On the path

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    I’m running a stock suspension on a 2018 M4CP which I intend to put 12mm spacers on. I’ve just been in touch with both Northampton Motorsports and CG to ask them how much to check/ set the car up. One has come back with £96 and the other with £340.

    Appreciate there have been comments earlier on in this thread but would anyone who has used both of these specilaists care to comment on whether they thought thought the £244 difference was worth it?

    Edited to add that Northants have clarified that corner weighting is an extra £65. So £161 in total.
     
    Last edited: Feb 12, 2019 at 1:24 PM
  18. 12 Feb 2019 at 11:13 AM #78
    MaximumBob

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    I'd print off the OPs alignment from page 2 and hand it to Northampton Motorsports and ask them to set your car to the same spec (or closeish).
     
  19. 12 Feb 2019 at 11:19 AM #79
    Banksie

    Banksie On the path

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    20” wheels and 12mm spacers on mine. OP was on 19”, will that make a difference?
     
  20. 12 Feb 2019 at 12:47 PM #80
    YMBF80

    YMBF80 Rocking a new hat

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    Who are CG are where are they based?
     

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