Saturday's Dyno Session

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  jorj7
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Location: El Cerrito, Ca

Saturday's Dyno Session

Postby jorj7 » Mon Jun 16, 2008 5:30 pm

I installed a new fuel management system last week and took the
car to a dyno Saturday. Well it was a little disappointing, and I'll
have to take it out and put back the old one. It has potential to
be better, but I don't have time to sort it all out before leaving Thursday
morning for the Bonneville 100.

The new system involves mods to the MAF, using the stock fuel pressure
regulator, and changing the LH (and EZ) chips. The chips were supplied
by Tim Murphy and are for his Stage 3 kit. I bought his Stage 2 kit,
but had upgraded it to a bigger blower and different oil breather system.
It turns out my upgrades and the Stage 3 chips aren't a perfect match.
I tested two different LH chips, but each had issues with my setup.
If I had time, Tim could make new chips using the LM-1 logs I took
during the dyno run, but I don't have enough time now.

Here is a short video of the dyno session:

http://928.jorj7.com/dyno/080614-dyno-both-chips.wmv

Here's a scan of the best runs of both chips:
Image

Here's a scan comparing the best of my prior runs with Saturday's runs:

Image
George
1990 Porsche 928S4 s/c
http://928.jorj7.com

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