Hi anyone know a good rolling road in Staffordshire area?

[Jp003]

Hi all

I have been meaning to take my C70 2.3 T5 to a rolling road for the last 2 years but have never got round to it.

I know the car has had a remap and is de restricted. This was done by the previous owner.

I have no idea what BHP she is pushing out but would be very interested in finding out.

So the question is does anyone know of a rolling road in the Stafford area which is not too expensive that I can take my car to???

Also does anyone know the rough cost?

cheers JP

[x70jwo]

Have a look here (http://www.pistonheads.com/gassing/t...&t=898707&nmt=)

[sartain87]

What about reyland Motorsport?

[Nuisance]

Originally Posted by Jp003

Hi all

I have no idea what BHP she is pushing out but would be very interested in finding out.


cheers JP

You'll be just as wise after as you are now.

As there is no "standard calibration" for these contraptions, they can vary by as much as 30% from each other.

As none of them replicate the real life airflow over the vehicle, the figures are always compromised.

They are ok for a bit of fun, but they are not a serious measuring tool.
What professional would ever use a non-standard un-calibrated measurement device?

How much power do you want it to have?

Go to a Dynojet and the chances are it will read much more than a DynoDynamics, neither of which are likely to be correct.

[marct1980]

Shark performance are about an hour away from you in mansfield, good bunch of guys there with plenty of volvo knowledge.

[don kalmar union]

You will get a very accurate graph and set of values throughout the rev. range if you keep away from those running the last two named machines.....amongst others....

Try and find a latish MAHA installation for they are at the very head of their game, also take a look, if you can find one nearby, at Rototest or Dynapak installations which are hub dynos.

Over the years a number of us have kept comparative runs on MAHA and these other two and found there is precious little difference in stuff recorded with the same vehicles.

It may be a hike for you but my nearest MAHA installation is at Marlin Motor Engineers in Bletchley, MK.

Regards, Don.

PS. you will generally get the best results from an operator who has nothing to sell you........

[nosh695]

Originally Posted by Jp003

Hi all

I have been meaning to take my C70 2.3 T5 to a rolling road for the last 2 years but have never got round to it.

I know the car has had a remap and is de restricted. This was done by the previous owner.

I have no idea what BHP she is pushing out but would be very interested in finding out.

So the question is does anyone know of a rolling road in the Stafford area which is not too expensive that I can take my car to???

Also does anyone know the rough cost?

cheers JP

hi mate..
we are having a rolling road day, it is a dynopack hub dyno & works out about £40 each there are between 12-15 people attending at the moment so it should be a good day..
here is the link if you are interested..
http://www.volvoforums.org.uk/showth...lling+road+day

[Nuisance]

Originally Posted by don kalmar union

You will get a very accurate graph and set of values throughout the rev. range if you keep away from those running the last two named machines.....amongst others....

Try and find a latish MAHA installation for they are at the very head of their game, also take a look, if you can find one nearby, at Rototest or Dynapak installations which are hub dynos.

Over the years a number of us have kept comparative runs on MAHA and these other two and found there is precious little difference in stuff recorded with the same vehicles.

It may be a hike for you but my nearest MAHA installation is at Marlin Motor Engineers in Bletchley, MK.

Regards, Don.

PS. you will generally get the best results from an operator who has nothing to sell you........

It partially depends on whether any of them can get anything close to a representative airflow to the vehicle.
The later vehicles are notoriously grumpy when inadequate cooling is available. Earlier vehicles less so.
Who ever saw a car doing 140mph with the bonnet up?

The better the airflow, the closer the result will be to a real life situation.

As for the actual figures, none of them are trustworthy.
I had my vehicle on 7 or 8 dynos over the years with as many different results as dynos it had been on.
I couldn't even get 2 curves to look the same.
The car would usually rev to 8,000 on the road, yet always crapped out at 6,500 on the rollers. (ECU says too hot)

Until there is such a thing as a common INDEPENDENT calibration technique (not some meaningless internal process) then you may as well just pick a figure from a hat.
Many units actually allow the operators to vary parameters on the fly which totally invalidates any measurement consistency.

No person who works in any form of professional measurement discipline would ever take the dyno industry seriously.

Even if they WERE calibrated at the rollers, they'd need a wind tunnel round them which ran at roller speed (up to 150mph winds) to be in any way representative of what the car will do.

At work, all our serious measurement equipment is sent away to an independent testing house for periodic calibration and testing. It is then sealed and returned to us, but even then we have to verify it periodically to ensure it is not gong faulty. Nothing of this exists with the types of dyno used by the general public.

A bit of a dodgy business IMO...