Dyno Testing The 300,000 mile 1990 OBS Chevy Before The Engine Swap. Will It Make Any Power, or Blow Up?
I hear people make comments all the time about being afraid to put their car on a chassis dyno. Some folks seem to be scared that they will damage their cars, when in fact the chassis dyno is really no harder on your car than going full throttle up a freeway on-ramp or down a country road. So if you would be willing to do either of those things in your ride then don’t worry about the chassis dyno. But what about a 300,000 mile OBS Chevry truck?
Rebeldryver’s work truck OBS Chevy is getting some love and being brought back to a better life, but not before testing out the stock engine that is under the hood with 300,000 miles. It’s rough, it makes no power, and it has some oil pressure issues and more. He’ll fill you in, but it isn’t good.
Will the chassis dyno be too much for it? Or will it surprise us and make more power than we think?
On a whim we decided to dyno test my POS winter beater ’90 Chevy 4×4. I paid $1000 for this thing. It has 300,000 miles on the TBI 350. It’s worn out for sure. But, I wanted a baseline power level because we plan to make some upgrades. We aren’t going crazy with spending on this rusted-out truck. But, we want to improve our power and towing capability. Maybe even some fun offroad use. The results were surprising on different levels.