Been running with H&R cup shocks and -30 mm springs on ma M30 touring and have covered aprox 8k miles over 9 months.
Would say that the ride quality has decreased and now the front tyres will rub slightly in the arch on a fast compression.
Have stripped down the front struts and all looks well ie. no oil leaking from insert and springs look good, but something must have changed as was not like this before?
Any ideas guys?
Do you think changing to to Bilstein inverts will help things ?
Front suspension question- Sal?
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orangecurry
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Engine too heavy for the set-up? I don't know how much an M30 weighs compared to the M20 - I assume yours was originally an M20 rather than M40?
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orangecurry
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I don't have a touring, but won't the 1.6 set-up be too weedy for an M30? Otherwise why did BMW put the thicker suspension struts on the M20s?
It'll take time/miles for the extra weight to trash the existing set-up/springs (so it would be OK to start with)
It'll take time/miles for the extra weight to trash the existing set-up/springs (so it would be OK to start with)
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orangecurry
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my mistake - I thought they were different.
Have you sent Sal a PM?
Have you sent Sal a PM?
Yep sent a PM and Sal thinks that the springs may have sagged under the additional weight of the M30.
Come to think of it I did suspect that the front arch clearance had reduced slightly but wasn't sure.
So time for a new thread I think- M30 spring choice ?
Come to think of it I did suspect that the front arch clearance had reduced slightly but wasn't sure.
So time for a new thread I think- M30 spring choice ?
Is the suspension kit for a 316?
If so I can see that it would struggle!
If it's for a 325 then the M30 engine only weighs about 25 kg more than an M20. A 325 with air con weighs about the same over the front as an M30 engined car so 325 suspension should cope. Mine has been ok so far but I've only done about 3000 miles since new engine and suspension, so time will tell!
If so I can see that it would struggle!
If it's for a 325 then the M30 engine only weighs about 25 kg more than an M20. A 325 with air con weighs about the same over the front as an M30 engined car so 325 suspension should cope. Mine has been ok so far but I've only done about 3000 miles since new engine and suspension, so time will tell!
Jeremy Clarkson wrote:...but it drives the front wheels. Theee wrooong wheels!
da4x4turbo wrote:I raced a vivaro on the motorway once in a 318is.... and lost!!!
Thanks Jhono, do you know how much the m3 spring dropps over the mtech height ?
Driftboy- Not that daft mate, the set up is H&R cup shocks and touring -30 mm springs, all for 325 model.Whats ur set up ?
Driftboy- Not that daft mate, the set up is H&R cup shocks and touring -30 mm springs, all for 325 model.Whats ur set up ?
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Simon13
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Mate your shocks are not designed for those springs this will be having some effect. Your shocks are designed to be used with -60mm springs so whats going on there?!
Theo with some good shocks it will be fine, with some inverted some inverted billys and the engine mounted as far back as poss, im sure it will handle fine.
Theo with some good shocks it will be fine, with some inverted some inverted billys and the engine mounted as far back as poss, im sure it will handle fine.
Sorry, didn't mean to insult you inteligence!evodan wrote: Driftboy- Not that daft mate, the set up is H&R cup shocks and touring -30 mm springs, all for 325 model.Whats ur set up ?
But, I bet some people would do it...
I'm using G-Max -60mm all round on a 2-door car.
I've heard people say G-Max are not much good but I got them cheap from a zoner, they were quite new and so far I've not noticed any terrible effects, it's a little harsh on bumpy roads but I don't mind, I've not driven one with a different set up so I can't really compare.
I bet H&R would be a better set up to be honest, from what I've heard from other people.
Jeremy Clarkson wrote:...but it drives the front wheels. Theee wrooong wheels!
da4x4turbo wrote:I raced a vivaro on the motorway once in a 318is.... and lost!!!
Simon- Know what your saying but I'm sure the shocks are from a 325 35mm cup kit or are the uprated shortened shocks not the same for all the cup kits anyway reguardless of drop. I checked with Sal at the time and was sure I had the right set up.
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Simon13
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Well the only thing i can think of is the shocks are too soft on rebound hence the rubbing issues your having. M3 aircon springs will be higher than the H&R ones you currently have
What engine position are u running with the M30?
What engine position are u running with the M30?
The same shocks are used in the 60/40 and the 35mm Cup Kits.
The shocks have no effect on ride height unless they are very very short - not the case with the Boge shocks in the Cup kit.
The springs primarily control the ride height, in your case they are simply not designed to take the weight of the M30.
As Johnno says, E30 M3 with AC springs is what your going to need.
Sal
The shocks have no effect on ride height unless they are very very short - not the case with the Boge shocks in the Cup kit.
The springs primarily control the ride height, in your case they are simply not designed to take the weight of the M30.
As Johnno says, E30 M3 with AC springs is what your going to need.
Sal
