An Answer a common mechanic can understand is how violent the exhaust gas is exiting the combustion chamber. If you have the wind pickup on a grass fire look how much harder and violent it will burn. When you push more air and fuel into the intake the harder it will exit into the turbine. If it was heat, then explain how you can have lets say 30 pounds of boost and 1100 degrees on the pie gauge. Pull back on the fuel and the boost will drop to 0 while the pie will slowly drop from 1100. Throw on a jake brake and the pie gauge will drop to 0 almost as fast as you look at the gauge. Now smash the pedal and you will see the boost go back to 30 and the pie will start to climb, but not instantaneously. Nothing to do with how much heat, but how "mad" the gasses are leaving the heads. Watch a boost gauge on a day it is 90 degrees verses a day that it is -30. The colder and more dense the air the higher your boost. I have seen head bolts pop the heads off in really cold weather on a juiced up engine if a driver didn't watch his gauges. I have seen many tubos grow cherry red while pulling hard on my dyno. From the time the engine was just warn enough to pull to that point the boost never changed. I have seen guys install a big fancy high dollar turbo on an engine and not get hardly any boost. It takes fuel to make a turbo spin. Example is with a dirty fuel filter. An engine that will build 30 pounds boost any time pulled hard will not make hardly any boost because not enough fuel is being injected. With a dirty air cleaner you will have a very high pie temp. , but hardly any boost. Lots of black smoke and low power. Its not the amount of fuel put in, or the amount of air. Its how much fuel and air together and burning violently that will make a turbo spin. When idling a turbo will have 0 boost. You will here it spinning but it will not make boost. It is just spinning from exhaust being forced threw it. Example, start an engine with the air neck from the tubo taken off. The engine will free rev most times just fine, turbo unable to do anything. Now try to apply a load. You will make lots of smoke, low temps on the pie, but no boost. Takes air/fuel burning to build boost. That why multi turboed pullers take time at the start line to get the engine to come alive. They have to slowly increase the fuel so the turbos can come up to speed to burn the extreme over fuel condition. Fuel and air have to have some balance to make a turbo work. More air, more fuel, more power. Until something finds its weak spot. Not enough air cleaner compassity or maxing out the fuel system delivery. Most times it inability to remove heat from the engine. exhaust ,or liquid coolant.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
