'Dynapack' 1/2 day at Abbey Motorsport (Oxted, Surrey)

[pomona]

As UKHSV states,he is trying to dispence with the BHP b------t.Major tuning companies in Oz use Dynodynamics,ie rolling road,so to equate comparisons is very difficult.We all have to use the same dyno to compare our results and basically ignore what other dyno's produce.Do you agree? By the way I have used a rolling road dyno to date,so maybe I ought to sing from the same hyme book as Will stated.

[caspy]

Surely the relevent figure is the figure at the wheels, not the flywheel. If all take that figure then all is equal.

[pomona]

I said nothing about flywheel.Dynodynamics,used extensively in Oz, is from the wheels, the same as Maha rolling roads and the old system Sun,to name a few.What I emphasised was to use Dynapack by everyone, would eliminate discrepancies and produce equal comparitors.
Texaco std is I believe a lower octane than Optimax and most Aussie tuning companies recommend using.

[jagsy]

In my humble opinion:

Lets not get hung up on what anyone else says.

Abbey are a respectable dyno Co. They should have the knowledge and experiene to advise on expected losses and thats a good "baseline figures".

So we have some baseline figures, many more to come I hope.

I think they can be used for RELATIVE comparison for those who can't make it to do some measurements.

There is no doubt different dyno Co's will have different machines and different losses, the figures will alsways be different - just read some forums!! So if you have the test done somewhere else, the figures will be useful, but not relative unless other folk go there too.

For those that can't make it to tests, I think its a good benchmark to use for for similar cars.

Anyway what I'm trying to say is - all data is good and useful. BUT we are in the UK not Oz and we have OUR cars to test.
If we set bench mark results they probably will be from "A" dyno company (others most certainly allowed).

So lets do more testing as I find it fantastic and fascinating

Have I made sense or have I had too much to drink


Drive on "HSV" (sorry Rob - had to do it)


>> Edited by jagsy on Friday 1st October 20:51

[GSE - Monaro V8]

jagsy said:

So lets do more testing as I find it fantastic and fascinating Have I made sense or have I had too much to drink

Makes sense to me! Yes I agree on the 'relative' power (or power gain) point.

I must admit, I was surprised at my 350 rw bhp figure from my car - not dissapointed though!

Bear in mind, that I also have the extra hole in the airbox mod (and an extra 2000 miles) over Dan the Mans car (330 bhp) It's still very nice to be 'almost' up to the VXR output figure and I've yet to fit the wide bore maf pipe, and edit the ecu parameters in any way.

I agree that the 'accuracy' of Abbey Motorsports dyno system may be skewing the figures a little. But I would not expect normal rolling road figures, to be 10-20 bhp out, 'per wheel' (?) (I would think less?)

If only all rolling road figures were obtained as Abbey do theirs

Paul UKHSV - what was the output of your car?