Search results for query: *

Thanks Majik, that's the experienced input I was looking for. I had guessed that there would be no gain because I don't make any black smoke. No smoke means plenty of air to fully burn the fuel. More air would not change mileage because there is nothing left to burn with it. Thanks everyone...

I've heard all the theories that startup is an important cause of wear. I replaced a non turbo diesel engine with a new crate long block. After 130,000 miles, I tore it down to inspect for wear. The main and rod bearings, cam bearings and roller rocker bearings looked new. The cylinder...

I switched carbs early on to eliminate it as the cause - no diff. The fuel used is always custom racing fuel that is supposed to be ok to 14 to 1 compression. I like things to make sense and follow the rules becauase it shows I understand the fundamentals. The ex. valve soot was a surprise...

Interesting idea Mike to borrow some big wheels for a cheap gear change test. Thanks Fabrico: I have another GM diesel with nearly the same gearing and weight but without turbo. The non turbo one clearly runs out of air (black smoke) during most speed changes. The mileage on the non turbo...

Engine configuration: 361 cube oval racing small block Chevy geared and tuned to run up to 7600 rpms - Dart Aluminum heads with straight plugs - 55cc combustion chambers - cam with 256 deg intake and 264 degree exhaust at .05 lift. - the flat top pistons and chambers are configured to maximize...

I've done considerable tinkering with a 99 GM 6.5 turbo diesel automatic suburban trying to improve mileage. The starting mileage was 18.5 to 19 mpg at 70 miles per hour with the air cond. on. I keep the tires at 55 lbs. The best I can get with some changes is 22.5 mpg. Would an intercooler...