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ITB 172 Race car on dyno, 198+168!



  172 Race Car
As you may be aware me and Tony Hunter are racing this season in the Classic Sports Car Club's Tintops series.

Many, Many months of work have gone into building the car from a bare shell. Loads of unforseen problems have been overcome and yesterday the car hit the rollers at Tour-De-Force again for its final calibration session.

Paul at RSTuning had supplied us a set of AT Power direct to head throttle bodies and a carbon airbox.



After 2 previous attempts to finish the ecu mapping, lots of bad luck, things breaking, loom problems, throttle linkage problems (caused by using the rubbish stock cable) , It turned out to be 3rd time lucky, although the car did try its best to defeat us yet again.

We arrived just after lunch and got the car into the Tour-De-Force dyno cell.


2995.jpg


2999.jpg




Final figures of 198.5bhp and 168lbf of tourqe was a great result. 200bhp and 170lbf would of been nice but with a dead alternator and running on 95RON fuel we were not far off.




Burpspeed.jpg





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Not bad for a totaly stock engine.



A HUGE thanks to Matt at Tour-De-Force Power Engineering for his hard work, late nights and massive patience.

Thanks also to Paul at RSTuning and John at AT Power.
 
Good results Jay, about time - was getting worried that you were running out of time! Would say totally stock is not quite accurate - no PAS for instance!

Looking forward to seeing it perform in your hands @ competition level :)
 
  172 Race Car
Good results Jay, about time - was getting worried that you were running out of time! Would say totally stock is not quite accurate - no PAS for instance!

Looking forward to seeing it perform in your hands @ competition level :)
Meh, not really part of the engine tho. I ment cams etc
 
  172 Race Car
ECU mapping as in stock 172 ecu can now be mapped for ITB's ? or are you meaning standalone ecu ?
Spec is in the video



172 Cup Engine
AT Power Direct To Head Throttle Bodies
Carbon Airbox
Tour-De-Force EC1 ECU
95RON Fuel
 
sorry,in the video which gear use???

In the vid there is a mix of third and fourth at varying loads and throttle openings to check transients, part throttle etc.

Our chassis dyno supports 190mph+ so we can run Clios and similar short geared stuff in 5th/6th if we really want. For the most part 3rd and 4th are fine.

Generaly speaking we'll do a power run in third or fourth depending on the car and have specific test profiles for turbo cars etc. to provide sufficent load to spool the turbo.

Cheers
Matt - TDF
 
P.S. With a bit more time and a working alternator I should be able to optimise the 3 - 4K RPM area a bit more and bring the torque up a touch to make a really smooth curve. Although Tony doesn't care about that as the car will never be down that low ;)
 
  182cup & 172 racecar
P.S. With a bit more time and a working alternator I should be able to optimise the 3 - 4K RPM area a bit more and bring the torque up a touch to make a really smooth curve. Although Tony doesn't care about that as the car will never be down that low ;)
Oh Hai
 


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