Volvo C70 2.5T Coupè 1998 Suspension Comfort Problem

[ASt85]

Originally Posted by reise

I need to make the C70 I a comfortable car.

The biggest change in comfort I found was changing the tyres from Contisport to 225/45R17 UNIROYAL SP5s

[reise]

Realy? A review about this tyre? Is tyre specific for comfort? But i can't find SP5S model. Sure is right name?

[ITSv40]

My C70 has the suspension it left the factory with - comfort spec. No issues with ride. In fact it is very soft and comfy, just like a cruiser should be.

[ASt85]

Originally Posted by ASt85

The biggest change in comfort I found was changing the tyres from Contisport to 225/45R17 UNIROYAL SP5s

Yes, fitted by my local mobile guy - great chap - super value
Trac N Steer Ltd aka Steve Relph on 07930 348391

(|https://m.facebook.com/tracnsteer/ )
DUE 29/01/2021
Invoice
27/01/2021
Sales £251.68
225/45R17 Y UNIROYAL SP5
4 X £62.92 20.0% S
Subtotal £251.68
VAT total £50.34
Total £302.02
Payment £302.02
which included balancing, new valves, fitting and disposing of the old tyres.

[280E]

Are you sure they aren't Rainsport 5...

[reise]

Originally Posted by ITSv40

My C70 has the suspension it left the factory with - comfort spec. No issues with ride. In fact it is very soft and comfy, just like a cruiser should be.

Can show chassis code of your car? With this code is possible order original suspension element for comfort chassis.

This is the code circled in red (11):

[ITSv40]

Originally Posted by reise

Can show chassis code of your car? With this code is possible order original suspension element for comfort chassis.

This is the code circled in red (11):

I am now confused!!

When I first bought the car I checked with my local dealer and they confirmed the original spec including comfort suspension. This was the default for GT spec cars unless the customer specified standard dynamic or lowered dynamic.

Having read the chassis plate this morning the code states M7 for the front spring which is listed as Dynamic. I haven't checked the other codes to see what they confirm - the full code is M71N4MS5

The car is 2003 2.4 GT manual. Wheels and tyres are 225/45 17. It had Pirelli P6000 all round when bought, but I have fitted new tyres to the rear - Michelin Primacy 4. Ride has not changed with the change of tyres.

All I know at the moment is that the car is as left the factory and rides very smooth and soft and also stands dead level back to front. I will need to investigate the chassis code to see what exactly is fitted.

[ASt85]

Originally Posted by 280E

Are you sure they aren't Rainsport 5...

You could well be right as the invoice states 225/45R17 Y 91 UNIROYAL SP5...IMHO "SP5" probably signifies RainSport 5

[reise]

Hello. What to choose for the best comfort (road bumpy absorption)?

225/45 17 91 W
225/45 17 94 W
225/45 17 91 Y
225/45 17 94 Y

Clearly referring to the same tire model.

[tony209]

Originally Posted by ITSv40

I am now confused!!

When I first bought the car I checked with my local dealer and they confirmed the original spec including comfort suspension. This was the default for GT spec cars unless the customer specified standard dynamic or lowered dynamic.

Having read the chassis plate this morning the code states M7 for the front spring which is listed as Dynamic. I haven't checked the other codes to see what they confirm - the full code is M71N4MS5.

M7 = front suspension
1 = front anti-sway bar
N4 = rear suspension
MS = rear suspension/sway bar
5 = Steering rack.

Your front spring is Dynamic (should have a blob of brown paint on them)

Everything else is standard, as is with all cars except factory lowered.

My 2005 T5 as the same factory setup as yours, albeit with different spring codes.