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Old 09-02-2013, 04:17 AM   #4 (permalink)
Tesla
Master EcoModder
 
Join Date: Feb 2012
Location: Australia
Posts: 355

The Truck - '02 Nissan GU Patrol ST
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I've done a more permanent set up and I'm looking for test method ideas to determine if improvements are real or placebo.
The “seat of the pants” dyno say’s yes but I’d like something more quantifiable.
I'll probably be keeping it in for a while, so will see if there is an improved fuel economy over next few tanks, but for now just want to determine if there has been an improvement in engine response time.

The mod is only for the immediate period after throttle is actuated to get a quicker response from engine for standing starts and overtaking and does not change overall boost, power etc at status quo when cruising etc.
One thing I thought of is doing controlled runs on a straight stretch of road from 2nd gear to 5th, starting test at specific rpm with gear changes at designated rpm’s and full throttle application after each gear change. I thought setting designated rpm’s at lower end of scale would test better if there is an improvement and finishing test when set speed is reached and noting total test time.
Wondering if anyone has other ideas I could look at.
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