Are The Apex Grooves Hardned?
02-03-2005, 01:37 PM
#1
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Join Date: Nov 2004
Location: Europe, Belgium
Posts: 147
Hi,
I'm in a slow process of building my 20B..
Are the stock 2mm grooves hardned? My rotors will be machined 3mm, but do I need to let hard the grooves again, the engine will produce around 600rwhp with a big single...
Greetz
I'm in a slow process of building my 20B..
Are the stock 2mm grooves hardned? My rotors will be machined 3mm, but do I need to let hard the grooves again, the engine will produce around 600rwhp with a big single...
Greetz
02-03-2005, 02:49 PM
#2
Senior Member
Join Date: Nov 2001
Posts: 2,284
People have said that they're hardened, but I've seen slop which tells me they are the same hardness as the rest of the rotor. My 20B's apex seals are kinda sloppy. I'd like to have them machined for 3mm but I'm curious if the slots really are hardened or not.
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