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What *is* this guy smoking?

How can you even get 28:1 out of a piston? Wouldn't you need a very small combustion chamber (from head) for that?
 
I've never heard of a gasoline engine that runs at 28:1.

I really liked his comment "any FI works by boosting the CR".

That's some original stuff he's coming up with. He should start his own magazine and call it The Rice and the Ridiculous.
 
Boy... talk about a case of the blind leading the blind...
rolleye.gif
 
Originally posted by: Compton
I've never heard of a gasoline engine that runs at 28:1.

I really liked his comment "any FI works by boosting the CR".

That's some original stuff he's coming up with. He should start his own magazine and call it The Rice and the Ridiculous.
Supposedly he runs a turbodiesel, not a petrol...
 
Well in that case, he's probably right about his CR.

I did not read the whole thread, just glanced over it quickly. I stand corrected.
 
What do you expect?? Its Ricer-Technology. No one but Ricers can understand fully what hes talking about.

~wnied~
 
Honestly I think this man needs to walk into rehab.
Thats hella funny. To bad none of you know what your talking about. Why dont you lay it down for me genouse. Make it all make sence for my ignorant little head! BTW faggots, I also have a 69 Mustang GT a 71 BMW, Chevy S10, GMC diesel, and the turbo diesel mercedes Im building, so you can shove your ricer sh*t right up your already loose faggoty asses! Bitch. Oh my current project (besides my honda) Is droping a 350 into a 47 mercedes my brother owns.... You need to take your one car owning hater asses and get a inline four before you start talkin sh*t to peeps who probably been workin on cars for alot longer than you. To me an engine is an engine, "There is no replacement for displacement" Bullshit, its called rpm's.
He ends off talking about something that's completely irrelevant. Hmm...
 
Originally posted by: Howard
Originally posted by: Compton
I've never heard of a gasoline engine that runs at 28:1.

I really liked his comment "any FI works by boosting the CR".

That's some original stuff he's coming up with. He should start his own magazine and call it The Rice and the Ridiculous.
Supposedly he runs a turbodiesel, not a petrol...

turbo diesel? isn't that like an oxy moron.

would think diesel would burn too slow for it to be considered for a turbo charged engine
 
Originally posted by: Nitemare
Originally posted by: Howard
Originally posted by: Compton
I've never heard of a gasoline engine that runs at 28:1.

I really liked his comment "any FI works by boosting the CR".

That's some original stuff he's coming up with. He should start his own magazine and call it The Rice and the Ridiculous.
Supposedly he runs a turbodiesel, not a petrol...

turbo diesel? isn't that like an oxy moron.

would think diesel would burn too slow for it to be considered for a turbo charged engine


ummm...most diesels are turbocharged! The TDI in VWs are all turboed, all the trucks that use diesels are trubocharged, etc..


 
Originally posted by: Nitemare
Originally posted by: Howard
Originally posted by: Compton
I've never heard of a gasoline engine that runs at 28:1.

I really liked his comment "any FI works by boosting the CR".

That's some original stuff he's coming up with. He should start his own magazine and call it The Rice and the Ridiculous.
Supposedly he runs a turbodiesel, not a petrol...

turbo diesel? isn't that like an oxy moron.

would think diesel would burn too slow for it to be considered for a turbo charged engine
Burn too slow? Everything has to finish burning during the expansion cycle or else it gets pushed out. Any piston ICE can be turbocharged.
 
A piston CAN produce a higher compression ratio by having a popup or being domed. It basically takes up more space inside the head. A prime example of this is the Chrystler 426 Hemi. In the case of supercharged or turbocharged engines, often the compression ratio is lowered because the boost effectively creates a higher compression ratio, and with a lower compression ratio, they can bump the boost up, and cram more air into the cylinders. More air==more fuel==generally more HP.

And turbos compliment diesels because they provide power higher up in the power band (1800+RPM) while the diesel's characteristics easily handle the lower RPM. Also note that diesels w/ a dynamic compression ratio (the compression ratio w/ the boost taken into account) is often the equivilent of 25:1 or higher. They need that compression to fire. In a gas engine the firing because of compression is detonation, in a diesel it's what makes it work. For reference, 10:1 is common for a higher performance gas engine, and 13:1 is generally considered too high for a streetable engine. The L88 Corvette engines had 12.5:1 compression ratios, and thier owners often run aviation fuel.

Higher levels of octane increase the threshold that detonation occurs, which is why higher compression ratio engines require premium fuel. And why cars that don't need it don't gain squat.
 
Originally posted by: Demon-Xanth
A piston CAN produce a higher compression ratio by having a popup or being domed. It basically takes up more space inside the head. A prime example of this is the Chrystler 426 Hemi. In the case of supercharged or turbocharged engines, often the compression ratio is lowered because the boost effectively creates a higher compression ratio, and with a lower compression ratio, they can bump the boost up, and cram more air into the cylinders. More air==more fuel==generally more HP.
Yeah, I know, but I'm not sure you can simply switch out your pistons to get a 28.x:1 ratio.
 
Depends on what you have and what's available. Going from dished to domed can cut quite a few CC away from the combustion chamber. Although you KNOW that it won't be streetable, and w/o some major work elsewhere, it'll survive about as well as a Top Fueler's engine in a 500 mile race.
 
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