240lbs compression?

[01bansheefox]

Isnt that way to much? I have never seen anything that high

 

 

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=43977

[chris642]

i have seen 250rs with that much, better never a banshee

[badcompany]

We ran 230 for a little over a year, when we tore down to have more work done the crank had a broken weld. Motor ran decent though.

[frocashmoney24]

ive also seem 250r's rn that much, but never a banshee, must run like a raped ape, but why a longrod, matched with a single carb setup

Edited February 14, 2005 by frocashmoney24

[chris642]

We ran 230 for a little over a year,  when we tore down to have more work done the crank had a broken weld.  Motor ran decent though.

322890[/snapback]

it must of had killer bottom end, no? my banshee with 145 on each side has great bottom end for a banshee.

[banshee76179]

The most I've ever seen on a Shee is 210....240 seems a little out there...but, I fugure its not impossible.

[1800bigk]

that much compression takes away from peak horsepower because it takes so much energy just to compress the mixture, but torque goes up. my friends volkswagon has a diesel engine in it, it only makes 95 hp but has 170 ft lbs of torque, the compression is insane on it.

Edited February 14, 2005 by 1800bigk

[badcompany]

Yea it had some good bottom, we didnt know the comp was so high until right before we tore it down, or else we wouldve changed domes long before that. We run 170 now.

[DIRTBIKEZ]

my friends volkswagon has a diesel engine in it, it only makes 95 hp but has 170 ft lbs of torque, the compression is insane on it.

 

Of course, it was a diesel.

[Cotton eyed Joe]

Of course, it was a diesel.

322951[/snapback]

Don't the big diesel engines have something like 50:1 compression ratios???

[1800bigk]

yeah something like that, a detroit diesel two stroke has 23:1 cr

[Cotton eyed Joe]

yeah something like that, a detroit diesel two stroke has 23:1 cr

322965[/snapback]

I used to make the cam followers, oil pump gear mounts, and the parts for the turbos for the bigger marine Detroit Diesel engines a while back. Some of the biggest fucking engines I've ever seen. An oil pan 4x the size of my bath tub, with a 15" hole through the side where a rod siezed on the crank then exited through the oil pan some how. That pan was like 1.250 thick steel. They also used 6 1/2 gallon oil filters.

The dyno testing room ran a 6 inch water line from the engine to a 15,000 gallon pool on the roof to keep it cool while they tested it.

Insane shit.

Edited February 14, 2005 by Cotton eyed Joe

[GYTWYPT]

I've kicked around 220 with my 17cc domes here in the midwest. Guess 240 dont seem to far out there?

That kind of compresion is not a good thing? All i know is gas is not cheap (vp c12)

[.]

I used to make the cam followers, oil pump gear mounts, and the parts for the turbos for the bigger marine Detroit Diesel engines a while back. Some of the biggest fucking engines I've ever seen. An oil pan 4x the size of my bath tub, with a 15" hole through the side where a rod siezed on the crank then exited through the oil pan some how. That pan was like 1.250 thick steel. They also used 6 1/2 gallon oil filters.

The dyno testing room ran a 6 inch water line from the engine to a 15,000 gallon  pool on the roof to keep it cool while they tested it.

Insane shit.

322992[/snapback]

 

 

yeah, its not much fun putting one of those oil pans back on.....by hand.....takes some man power.

[Leadfoot350]

180 is a ok compression. Anything over that will wear shit out faster and loose top end.