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Old 30-10-2004, 08:17 PM
Gelf Gelf is offline
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Join Date: Feb 2004
Location: Astra Coupe Turbo in Wiltshire UK
Posts: 85
Default Pre Turbo Injection Recorded Temps

I borrowed a dataharvest from work this weekend, ive recorded over a hours worth of data.

I used four thermocouples, one before the WI point, one before the IC, one after the IC and one at the manifold.

I started with a 0.4 jet and worked up to a 0.9 jet. I noted the time on a stop watch after each jet change and drove up to the top of a long steep hill, which allowed me to hold boost for a considerable amount of time.

Finally i did the last run with WI off.

Should be able to post the results on monday :smile:

I want to find out the optimum jet size for cooling the inlet charge.

Ive noted that the turbo was a lot cooler (quieter, not hissing) when i pulled over to ghange jets from 0.6 upwards, also the post IC temps were higher than the post turbo temps at these times. ( So i kept the engine running while changing jets from that point onwards).
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