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View Full Version : Knife Edging the Crank and Polishing



Mario
02-17-2006, 03:08 PM
Knife edging the crank and polishing it... With proper oil control, is there still HP to be picked up here?

turboaddict
02-18-2006, 03:52 AM
from what i have read yeah ..... the weight reduction alone is worth it and secondary is increased oil shedding ability. i would do it to mine except i cant find anyone in the area able to do it.

turbovanmanČ
02-18-2006, 04:51 AM
Totally worth it, "it cuts like a knife", muhahaahahaa :lol:

ART
02-18-2006, 09:11 AM
South Florida Crank & Machine 7301 SW 45th St Miami, FL 561-533-9932

HTH, Torg

JuXsA
03-01-2006, 11:20 PM
I thought about doing it... but it was like $150 or $175. I did get it balanced though.

Frank
03-02-2006, 08:03 AM
If you loose 8lbs of rotating mass before the gears, you can typically gain performance of the equivelent of loosing around 200lbs off the car. That is huge.


Frank

CletusJones
03-02-2006, 11:05 AM
Would knife-edging a forged crank offset the weight difference between it and a cast crank?

Shelby5150
03-29-2006, 12:39 AM
Wow!! Check out this crank!! (http://www.ffwdconnection.com/butchercrank.shtml):eek: :evil:

Here's some Ducati Crankshaft Balancing (http://www.foxperformanceengines.com/crank.htm) info. Interesting what they do to the crank! :eyebrows:

Shelby5150
03-29-2006, 12:51 AM
Nice job done on this one (http://forums.vwvortex.com/zerothread?id=2481000)!!

http://pic5.picturetrail.com/VOL91/1369296/9377201/132360024.jpg

afsautoworx
03-30-2006, 03:07 AM
that is sweet :lol:

how did the car act with the knifed crank? reason i ask is cause ive tried some lighter flywheel/clutch combos on my brothers toyota circle track car and the car was SLOWER. just didnt seem to have any yank coming off the corner. I know we lost some stored up energy, and a clutch/flywheel isnt the crank but same difference i guess.

Shelby5150
03-30-2006, 05:37 PM
Actually, it's not my crank. That pic is from some website out there(which i linked to).