gordon Posted May 18, 2002 Report Share Posted May 18, 2002 hwo about we put our dyno results for the cars in here so we can see the spread we get between cars/rr/etc.today i got130.0 bhp dead on at flywheel99.5 bhp at wheels108 `lbf-ft` torque max @ 5280 rpmmax rpm 6950this was with inlet temp reading 18C - probably a bit lower than actual - at 30C i had 138bhp style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" /> air pressure at run was 1005 bar Quote Link to comment Share on other sites More sharing options...
Guest spook(`tdi-errr`-`arosa-OK`) Posted May 18, 2002 Report Share Posted May 18, 2002 when BHP is quoted is it at the flywheel?I think I know what it mans but what difference does at the wheels and flywheel make and mean etc Quote Link to comment Share on other sites More sharing options...
gordon Posted May 18, 2002 Author Report Share Posted May 18, 2002 @wheels is real on road power, after losses thru trans etc.@flywheel is power engine develops before going thru trans etc.eg also running today was audi quattro - 124bhp @ flywheel and 65bhp @ wheels, a loss of 60bhp thru 4x4 box hope it explains a bit Quote Link to comment Share on other sites More sharing options...
MattyB Posted May 19, 2002 Report Share Posted May 19, 2002 !!! loss of 60bhp through the wheels!!!!And is that for a standard LupoGTi??? 130bhp (or even 138bph!) sounds high....and 108lb/ft of torque @ 5280??Supposed to be 112lb/ft at 3000rpm.... Quote Link to comment Share on other sites More sharing options...
bAAx Posted May 19, 2002 Report Share Posted May 19, 2002 ...i am baffled too.. i was gonna bet my loop company figures for BHP/torque are ALWAYS through the wheels, sometimes a bit optimistic, but never 50% off! Quote Link to comment Share on other sites More sharing options...
gordon Posted May 19, 2002 Author Report Share Posted May 19, 2002 QUOTE(MattyB)And is that for a standard LupoGTi??? 130bhp (or even 138bph!) sounds high....and 108lb/ft of torque @ 5280??Supposed to be 112lb/ft at 3000rpm....thats what it was giving, jim reckons he sees this sort of thing with vag motors regularly, giving a little more than booked in bhp. my 8v ibiza was 125bhp on rollers when it supposed to be 115bhp. this was similar to other 8v's.the torque could still be the tighness of engine, but we couldnt figure out how to get front towing eye - didn't want to mark bumper trying to prise things off - so it was strapped down by susp turrets so it may have been a bit loose on rollers on power up which would cost a bit of torque. Quote Link to comment Share on other sites More sharing options...
Alvaro Posted May 19, 2002 Report Share Posted May 19, 2002 QUOTE(bAAx)but never 50% off!Does that mean that my l00p is running with 30hp now? :0 Quote Link to comment Share on other sites More sharing options...
gordon Posted May 19, 2002 Author Report Share Posted May 19, 2002 remember quattro is 4wd, so loss is around 2x that of 2wd but i've found that 2wd loss is around 30bhp from watching loads of runs on rollers Quote Link to comment Share on other sites More sharing options...
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