Scheid 08 mod

Scheid diesel ex. 08 mod class

Category:

Sports

Tags:

• truck
• pulling
• scheid
• modified
• diesel
• super
• stock

[dodgedude101]

@BigTruck27 ....ya i know, my brothers 454 is 13.5:1 compression an my 96 12 valve is 15:1 from 21:1 stock lol

[BigTruck27]

@dodgedude101 Generally for gas engines, 10:1 compression is about the max with standard pump gas, due to pre-ignition or detonation. (ignition of the fuel/air mix prior to full compression & sparking) 14:1 is about the max possible using high-octane leaded racing fuels. Diesels are compression ignition engines. (no spark plugs) They rely on very high compression to heat the air and ignite the fuel which is injected into the cylinder at the top of the compression stroke. 20:1or higher is common.

[BigTruck27]

@drockgibson There is a wastegate installed on the turbo to prevent it from creating so much boost that it damages itself. It works by blowing off the excess exhaust gasses and, in this case, there seem to be so many and they're so sooty, they were vented out through a small secondary hood stack to keep the engine area from being bathed in black smoke.

[drockgibson]

Why does "Overtime" have a small pipe next to the stack?

[dodgedude101]

oh you never said anything about a gas runnin a turbo now...lol...but ya i suppose you are right on some parts...you can take a stock gas an run a turbo without lowerin the compression

[tvoidt]

I'm sure his motor is naturally aspirated. If you lower the compression and turbocharge the motor you can run higher boost pressure. Same thing on a diesel.

[dodgedude101]

WTF you mean wrong....if your want big horse power with a gas you go with higher compression...like say my broothers 454BBC it went from 9:1 i think thats wat they run stock not sure...but anyways....he bored it .60 over so it s a 468 now an it has 13:1 compression an runs 650hp....but tell me why i'm wrong

[tvoidt]

Wrong.

[dodgedude101]

no for gas engines you want as much compression as you can get out of your block.....gas an diesel are different.....diesel you want lower compression an gassers you want higher compression

[tvoidt]

Yeah, i know. Same goes for gassers.