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Suspension Upgrade

scratcn

scratcn

New member
Hi Guys

Hope you can help

I have a 1984 944 2.5 Lux it is totally striped out (or will be very shortly) for use on trackdays I want to upgraded the suspension with a budget around £500 The problem is the lack of kits for this age. The only kit I have found is the following at the Porsche Shop Bilstein B12 & Koni Spring & Damper Kit
http://www.porscheshop.co.uk/acatalog/porsche_944_suspension_upgrades.html

It falls into my Budget but has anyone got any experience with this setup has it made a big improvement or is there a recommended alternative that is tried and tested as the best. I realise it would be easier if it was yonger as the MO30 stuff would fit, if it can be found but I am looking for somthing that even an edgit like me can fit.

Regards Neil
 
Bit of correction to the above I have also found the following from Motorsport world




Manufacturer :

SPAX Suspension

Category :

Spax Suspension Kits - Adjustable

Sub-category :

Spax PSX - Porsche

Application :

944 (all models excl. S2 & Turbo); 81>8/84 -30mm

Product Code:

TAP314

Details :

Lowering = 30mm.

Price:

£359.99 inc VAT Which would everyone recommend
 
this is a very useful guide for suspension setup -
http://www.924.org/techsection/SuspensionPreparation.htm

I wouldn't have thought you could go far wrong with any of those kits. Anything stiffer is going to feel better on the track as you car is going to roll quite a bit on standard suspension.

Having said that, I'd spend the money on sorting tyres and brakes first - make sure you can stop [;)]

Lower profile tyres are also a good idea to lower the car & improve acceleration (slightly) - I ran 195/50/15 front, 205/50/15 rear on my 924S






 
Don't forget the ARB's - you should be able to fit the M030 ARB's - again finding them might be a problem although i've got a rear M030 ARB if you are interested.
 
I would also thoroughly recomend fitting a rear MO30 anti roll bar, made a dramatic difference to my car! I currently run Koni adjustable dampers but with the original springs, the car is still a little soft for my tastes I must admit but its a vast improvement on how it was. I hope you are also budgeting for full four wheel alignment as on an old 944 the chances that all wheels are still pointing in the corrrect direction are remote!
 
Is it easy to fit an M030 rear anti roll bar to an 84 model and would it give a big benift without changing the shocks.

The wheel alignment was all done in 2002 by the previous owner when the shocks and bushes were all replaced (all standard parts were used) the car has done less than 8,000 miles since then. Obviously it would benefit to have the wheel alignment done again if I modify the suspension setup.

I spoke to Bert and he had a kit to modify the front suspension to M030 but not the rear it also looked like quite a difficult job eg. angle grinding parts of the car (not a good idea for me I will end up with a 2 wheeler).



 
The benefit you will get from uprated ARB's is only in body roll in corners. The car will lean less and corner flatter. It will do nothing for your ride. Starting off with your ARB's is a good idea in my opinion because on the road you don't necessarily want the hardest springs and stiffest shockers you can get your hands on, as if you go too hard and stiff not only will the ride be uncomfortable but it will be detrimental to the handling. It's a different story if you're building a track car but for a road car you need to compromise. Like alot of these things it's all about finding a balance.
 
The rear anti roll bar is a fairly straight forward swap, mine does appear to sit pretty close to the body but it doesn't touch.
 
I've just put the Koni insert kit on mine in the last few days - yet to put many miles on, but it's made a good difference to my car from what I can see so far. £450 for the 4 dampers, don't forget there may well be other bushes / steering joints you'll want to replace at the same time to get the best out of it.

Mike
 
Yes. Not too difficult though to be honest. You need to take the strut off the car, drain the fluid out of it, cut the top off and remove the damper rod and internals, then drill a hole in the bottom - slide in the new damper, bolt in from the bottom to lock it in there and you're away (basically)

Doesn't even take that long when you get going really. If you have any questions, feel free to PM me bud.

Mike
 
what about the Bilstein Shocks - Sports - Front

i know bilstein are brilliant but what are they like on the porsche and do they need modifying?

http://www.motorsportworld.co.uk/framefix.asp?ProductCode=K-8641-1414SPORT&PID=859238
 
Any replacement insert using the original struts will require a modification, as they are sealed units. I know Paragon sell the OE Sach/boge struts for about $230 per corner - I am not sure of the OPC or Berlyn prices). The 'hacksaw' Koni's are probably the cheapest option, as I know little about GAZ shocks (unless they are a spin-off from SPAX GAS from my days reading Car & Car Conversions mag - those were the days...)

As you probably know the alternative is the KW / Bilstein coilovers for the premier league and track days nutters.[:-]
 
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