S50 conversion front springs

Post Thu Jun 25, 2015 10:25 pm

I'm having some trouble deciding on a spring for the front of my s38 conversion iv Googled and seen the S50 is about the same so was wondering what people have tried. It has a cheap lowering kit on atm they are utter crap might as well just have a steel bar.

Post Thu Jun 25, 2015 10:33 pm

Personally I would go for e30 M3 front springs, brilliant in my experience.

Post Thu Jun 25, 2015 10:43 pm

That's lucky as I have a new set installed in my other car might swop them over and see how it feels. I thought they might be a little soft.

Post Thu Jun 25, 2015 10:50 pm

I found this on a different forum

Post Thu Jun 25, 2015 10:55 pm

my M52 with the M3 springs has the super heavy weight 6 speed box in and it's very stiff, hardly any body roll at all. Nice height also.

Post Thu Jun 25, 2015 11:01 pm

E30 M3 springs from a car with aircon is what I used on my S50 - I seem to remember reading this is what was used on the S38 engined M3s built by Hartge??

Post Thu Jun 25, 2015 11:09 pm

Sweet that sounds good

Iv got them on my m52 atm with B8's they are a little stiff so should work grate on the other car and a don't have to spend a penny.

Post Thu Jun 25, 2015 11:32 pm

It was the Alpina B6 3.5S which used the M3 with A/C springs.

That was an E30 M3 with an M30 engine.

Post Thu Jun 25, 2015 11:49 pm

bss325i wrote:It was the Alpina B6 3.5S which used the M3 with A/C springs.

That was an E30 M3 with an M30 engine.

Thanks Barry, I knew it was one of them. I read it when I buying bits for my conversion so that must of been 10-12yrs ago now!

Post Fri Jun 26, 2015 10:30 am

etouring wrote:I found this on a different forum

@ all the M5X owners who say their anchors are as light the mighty S14.

Post Fri Jun 26, 2015 11:59 am

its 12 kilos andrew plus an extra 40-50lbs of torque hmmm!

Thats interesting about S50 S38 the later is also way better for torque

Post Fri Jun 26, 2015 1:47 pm

The way I see it.

15kg of 106kg is 14.2%

15kg of 118kg is 12.7%

Thats quite a weight saving, especially when the weight is over the front axle and high up. Its also very possibly to get the S14 to weigh even less, but I think those weights are with ancillaries?

Post Fri Jun 26, 2015 1:51 pm

How many pints and a good curry is 15 kg?

Post Fri Jun 26, 2015 7:54 pm

still doesn't quite compensate for the power differences and deliverys. Especially out on the road i'd say.

Post Fri Jun 26, 2015 8:10 pm

I double checked and found that almost every site said the S50 was 1-2kg heavier it's a shame it didn't have more info on the S54 would be interesting to know.

Post Fri Jun 26, 2015 10:24 pm

You're right Simon it doesn't, however boost an S14 and you'll soon reap the benefits.

Post Sat Jun 27, 2015 8:27 am

and then you can boost an M52!

and just round in circles

Post Sat Jun 27, 2015 5:45 pm

Boosted or not, the M5x will never have the balance of an s14, my little sawing machine can see off an M5x easily (on track a˜).

Post Sat Jun 27, 2015 8:46 pm

When the M3 is back on the road you can borrow it for a week and see what you think!

Having also owned an M52'd E30 which happened to have full E30 M3 5 stud set up and the same Eibach/Bilstein B8 combo as my M3, there is a notciable difference.

One large 3 lane roundabout near my workshop is great for highlighting this and also the night and day difference between the M3 and my sport which also has the Eibach/B8 combo.