Vehicle & Technical > Defender
Rolling road
dew1911:
Tuning doesn't remove the loss of power though. I admit it's funny for a tuned one to produce less BHP than standard (unless you work for Alpina) but it may not be as bad as first thought.
dreadnought110:
:shock: It just makes me wonder how can the bhp be lower than standard but the torque's up by nearly 30lb/ft ? i think i agree that with other people i have spoken to that the fan was to low resulting in the intercooler not working at full efficency yes we cooled it just before w e ran it up again but that doesn't make that much difference because the air coming in was so dam hot it warmed it up very quick and you can different result's from one rolling road to another!! :roll:
dew1911:
It could be a case of the engine was set up to produce a higher torque figure at the expense of BHP. I have no idea how you would do that but it's a possibility.
dreadnought110:
:D All i know is after fettling it on the rolling road it shift's a lot better and i know that A. max torque's 2000 rpm B. max bhp is 3000rpm so no point in revving over 3000rpm and do all gear changes about 1800 to 2500 rpm and she accelarate's fast and sweet!! 8)
Porny:
I would never believe a rolling road....
Ideal as a comparison (i.e two cars, one after the other) but alot of rolling roads work the figures out in different ways.... and not all of them are that accurate!!! :roll: A useful tuning tool though.
When we put Allisports old TMC racer on the rolling road, the figure was lower than expected... but when you actually went in it... blinkin'eck was it quick!!! :shock:
Ian
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