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Old 28-06-2012, 08:21 PM
T.F.S. T.F.S. is offline
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Join Date: May 2005
Posts: 30
Default Re: Injecting prior to turbo comp' impellers

I fitted two more injection sites in the turbo scroll and fitted much smaller D075 injectors in those areas...the idea was to give a more even distribution of cooling mix within the turbo and reduce the chances of dropout on the walls of the turbo whilst also taking advantage of the very slightly better atomisation that a smaller injector/s provides.







The pre turbo injector has now been reduced to a D04.


I took the car for a test run last night and although the WI system was providing something like 25% less coolant/mixture and ambient temps were higher than previous tests at around 21c the inlet never went over 50c even on an extended high speed run....something is working a LOT better here!

The mixture was set at around 50/50 (water/ethanol) and another factor I should mention is that the dump valve was also leaking quite a bit...I am sure this only would have made the turbo work harder and increased inlet temps so now that has been repaired I may get some datalog tonight.

Methanol has not arrived yet..
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