Test and Tune Dissappointment

[Marv D]

Originally Posted by Super73

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EA normally comes back with 2% of actual power and typically is on the money about peaks (+/- 200rpm). I have used DD on the same combos and it has never had the same consistancy nor acuracy. DD is utter garbage IMO, even thoughs others will argue that it is dead on.
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I could not agree more. EA is like anything, garbage in and it will spit garbage out. But no matter how careful and exacting your are with Desktop Dyno,, it was always VERY generous.

I've used Drag Analyzer to model a complete package and (it imports the engine simulations) It's like the rest of Performance Trends stuff,, pretty darn accurate.

And did you know.. Performance Trends just got into the data logging industry. Racepack it aint, but it's not a $4000 data logging package either.
looks pretty interesting at a reasonable budget price.

http://performancetrends.com/dtm-hdwe.htm

OK,,, hijack off, Sorry

[kpeztruck]

I had springs in the stock location on the rear of my truck for a few races. I admit they were 5" lower springs, so the spring rate was way too high. What I ran into, was that when the rear suspension tried to seperate (anti-squat) the factory mounts prohibited this motion. I swapped to rear double adjustable coil-overs, and an anti-roll bar, and 1.34 60' times on radials. This was with Moroso trick springs and QA1 stocker star R series in the front set fairly loose. I have an 540 BBC leaving on 200hp nitrous, and turning on another 250 .8 out. Paul