We took the Shelby to the dyno and see how much juice was coming out of that engine. We were disappointed, but found a simple answer to part of the problem while we were at the Texas 1000.
Have you had a dyno hurt your feelings recently?
http://classicmotorsports.net/project-cars/1967-Shelby-gt-350/initial-dyno-runs/
dougie
Reader
2/29/12 8:41 p.m.
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My first visit to the dyno with my Big Healey vintage racer was very disappointing. The claims by the previous tuner didn't come close to the results I anticipated. It did provide me with a lot of valuable information on where to concentrate my time and money. I've been back to the dyno over half dozen times since, making positive gains every time.
Dougie
Never done it. Can't afford it.
Tom1200
New Reader
3/2/12 10:38 p.m.
My Dyno run with the Datsun yielded 73 WHP, now this sounds reeeelly bad but I was thrilled. Keep in mind that 1200's made 40 WHP stock so that was nearly double. Full race SCCA national engines are at 100 WHP........so given my home build and mild cam it is very good. I was also afraid that it would make less power than my dirt bike!!!
Andre, I do not now about Dyno places in your area but I spent about $120 for what I needed. The car felt fine but I was able to gain 8HP and boost the mid-range. The key is showing up with set goals and everything laid out in sequence..............I spent about 4-5 hours prior to my dyno session doing things like making sure the carbs opened all the way (this is more common than people think), I also pre-marked the distributer so we could simply try various amounts of advance without having to put a light on it. I had a list of all the tooling needed in order and used two small cigar boxes for parts. One box was for removed parts the other for installed parts. I had extra clips pre-installed on the needles (I run Keihin FCR flatslide carbs). The dyno pulls themselves take very little time, it's the changes that run up the meter. In the little over an hour spent on the Dyno the car ran maybe 20 minutes. A couple of adjustments that netted gains would have been impossible without a dyno............now way tell a car picks up 2 HP 800RPM sooner without a dyno.......amazing what a couple of degrees of timing and a minor jet change will do. I'd encourage anyone who can to put a car on the dyno at least once even if your just tuning stock components.
Tom
dougie
Reader
3/3/12 12:08 a.m.
I agree whole heartily...... I know prices range from city to city but my tuner charges $250.00 for 4 hours on the rack.......best money I've ever spent to make real performance improvements.
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Oh in the future it will happen, but so many other items must fall into place first.
I know there is s dyno which comes to the track.
Might be the easiest way to test it out.
One day...
Budget is so critical this year.
Andre - KVR Performance on Algoma off Innes Road, and Tapp Garage on Cleopatra off Merivale Road in Nepean offer dyno services. Friends from Kingston used Tapp a few years ago, and felt it was well worth the $$ (and time to drive up and back). Add it to your bucket list for a rainy day...
GWGarrard
Yep. Trailer is iced in...
And I need a truck ;)
So its on my one day list.
You know when I drop in that killer 1.8L FIAT fire breathing engine.