M030 928 S4 CALIPERS ON A 944 S2?

M030 928 S4 CALIPERS ON A 944 S2?

Author
Discussion

TWINTURBODAVE

Original Poster:

141 posts

141 months

Thursday 26th February 2015
quotequote all
Hi all...I have a 1990 944 s2, and I am wondering if the M030 calipers from a 928 S4 are a) a direct replacement for the existing calipers and b) worth the cost and effort?....Also, will a front anti roll bar from a 944 turbo (26mm) be a vast improvement over the standard 20mm ?....all help appreciated..

Sandy59

2,706 posts

211 months

Thursday 26th February 2015
quotequote all
From memory the M30 calipers are not a direct replacement as the spindles are different, but can be fitted using adaptor brackets. I'm pretty sure the disks would also need to be changed, not really sure about the anti roll bar.
You'll probably find a lot of useful detailed info on the Tipec forum to be honest.

Nurburgsingh

5,119 posts

238 months

Thursday 26th February 2015
quotequote all
As said. You'll need an adapter. And yes a larger ARB will improve the handling.
I see you're in west mids. Give EMC motorsports a call in Bham they are currently breaking an S2 that had m030 ARB's plus a few other bits... Plus they live and breath front engined Porsche.

Nurburgsingh

5,119 posts

238 months

Thursday 26th February 2015
quotequote all
As said. You'll need an adapter. And yes a larger ARB will improve the handling.
I see you're in west mids. Give EMC motorsports a call in Bham they are currently breaking an S2 that had m030 ARB's plus a few other bits... Plus they live and breath front engined Porsche.

TWINTURBODAVE

Original Poster:

141 posts

141 months

Thursday 26th February 2015
quotequote all
Great....thanks for that guys....and am I correct in thinking that in order to convert any 944/968 to Club Sport spec requires (just) the bigger brakes/anti roll bars/up rated shocks and springs?...

Nurburgsingh

5,119 posts

238 months

Thursday 26th February 2015
quotequote all
Well.... Now that's a can of worms.

Full CS spec would also include an LSD, rear wiper removal. On the 944 there are actually CS wing mirrors, manual adjust type from a 924.
Then you've got thinner glass etc...

M030 suspension - shocks and springs are only really sought after for perfectionists. If you want to improve the car then some modern alternatives exist including KW, GAZ, Koni etc...
Bucket seats - again the OE ones are ££££ and newer seats are lighter.
If your goal is to make a trackday/fast 944 then EMC really are the people you need to talk to.

blade7

11,311 posts

216 months

Friday 27th February 2015
quotequote all
TWINTURBODAVE said:
Hi all...I have a 1990 944 s2, and I am wondering if the M030 calipers from a 928 S4 are a) a direct replacement for the existing calipers and b) worth the cost and effort?....Also, will a front anti roll bar from a 944 turbo (26mm) be a vast improvement over the standard 20mm ?....all help appreciated..
Is it really only a 20mm front AR bar on the S2 ? In any case just fitting a thicker front bar will likely make the car understeer more. AFAIK on the Clubsport MO30 was an option not standard.

Edited by blade7 on Friday 27th February 00:35

Sandy59

2,706 posts

211 months

Friday 27th February 2015
quotequote all
'AFAIK on the Clubsport MO30 was an option not standard.'

As was the LSD.


FraMac

785 posts

217 months

Friday 27th February 2015
quotequote all
TWINTURBODAVE said:
Hi all...I have a 1990 944 s2, and I am wondering if the M030 calipers from a 928 S4 are a) a direct replacement for the existing calipers and b) worth the cost and effort?....Also, will a front anti roll bar from a 944 turbo (26mm) be a vast improvement over the standard 20mm ?....all help appreciated..
Front Caliper Part Numbers you need (I think, so check if you order) are P928.351.423.03 and P928.351.424.03. Drilled discs that will fit these are P965.351.045.00 and P.965.351.046.00 and has already been pointed out you'll need adapters too.

Richair

1,021 posts

197 months

Friday 27th February 2015
quotequote all
Don't change the front ARB without adding a thicker rear at the same time, as a thicker front bar in isolation will just induce [more] understeer.

Personally I run a stock 951 front ARB and a Weltemister 22mm adjustable rear bar, great bit of kit which really helps you to adjust the balance of the car. 968 m030 20mm rear bars come up from time to time and I think may even still be available new.

Also the biggest drawback to the handling of any 944 is the spring rates which are very soft as standard. Not an issue if the car is only driven on the road well within its limits, but a 944 on track with non-m030 stock suspension displays some 'challenging' handling characteristics in my experience...

TWINTURBODAVE

Original Poster:

141 posts

141 months

Friday 27th February 2015
quotequote all
blade7 said:
Is it really only a 20mm front AR bar on the S2 ? In any case just fitting a thicker front bar will likely make the car understeer more. AFAIK on the Clubsport MO30 was an option not standard.

Edited by blade7 on Friday 27th February 00:35
No...my mistake!...its the same for the turbo/S2...so nothing to be gained there...

Nurburgsingh

5,119 posts

238 months

Friday 27th February 2015
quotequote all
TWINTURBODAVE said:
No...my mistake!...its the same for the turbo/S2...so nothing to be gained there...
Again as stated.. Standard ARB's may be the same but the M030 ARB's are thicker and the rear is adjustable. It is normally the number 1 modification made by 944/68 owners. Followed by the CS steering wheel.

blade7

11,311 posts

216 months

Saturday 28th February 2015
quotequote all
KW's were my number 1 modification.

GC8

19,910 posts

190 months

Thursday 5th March 2015
quotequote all
I replaced the overly chunky steering wheel with a Momo Monte Carlo. Seats too - hopelessly impractical for a working car.

zcacogp

11,239 posts

244 months

Friday 6th March 2015
quotequote all
Front ARB thicknesses varied from model year to model year and between the S2 and the Turbo. The only way to be sure is to measure the one you have with a vernier. A better use of your money would be to buy some new shocks for the car, particularly if they are 25+ years old, and a half-decent geo session.

I'd suggest that bigger brakes are not necessary on an S2, particularly if only used on the road and light track. If you think the brakes aren't good enough as they are then have them overhauled (plate lift cured, new fluid, new hoses, new disks and pads) as, when working correctly, they are exceptionally good.

New calipers and bigger disks will be expensive and very heavy. And that's a big chunk of unsprung weight you don't need to gain.


Oli.

TWINTURBODAVE

Original Poster:

141 posts

141 months

Friday 6th March 2015
quotequote all
Nurburgsingh said:
Well.... Now that's a can of worms.

Full CS spec would also include an LSD, rear wiper removal. On the 944 there are actually CS wing mirrors, manual adjust type from a 924.
Then you've got thinner glass etc...

M030 suspension - shocks and springs are only really sought after for perfectionists. If you want to improve the car then some modern alternatives exist including KW, GAZ, Koni etc...
Bucket seats - again the OE ones are ££££ and newer seats are lighter.
If your goal is to make a trackday/fast 944 then EMC really are the people you need to talk to.
Hi..cheers..I will give EMC a look up..