Material of H22 sleeves - Honda Prelude Forum

BB6 Man · 09-16-2008, 11:13 PM

What material are the sleeves made of in the H22 block?
Can one use forged pistons in these sleeves? As far as i've heard you can not but i want to know why.

AllMotorBB6 · 09-17-2008, 05:19 PM

Fiber Reinforced Metal

JUN and Mahle are the only ones advertised to work. Supposedly JE has a set.

BB6 Man · 09-17-2008, 10:36 PM

Quote:

Originally Posted by AllMotorBB6

Fiber Reinforced Metal

JUN and Mahle are the only ones advertised to work. Supposedly JE has a set.

This doesnt really help. I probably should've said that i know its FRM liners and what the abreveation means. Is it Carbon fibre reinforced Aluminium? Or steel? Has it got a Nikasil coating on the inside of the sleeve? Why cant you use normal forged pistons in them?

dvsracergirl · 09-18-2008, 02:56 PM

yes it has nikasil. and forged scores the frm sleeves.

Artifex · 09-18-2008, 10:06 PM

Quote:

Originally Posted by dvsracergirl

yes it has nikasil. and forged scores the frm sleeves.

Natalie, you amaze me. You should know this.

FRM is not Nikasil. Nikasil is a proprietary coating made by some company in europe.

Quote:

What material are the sleeves made of in the H22 block?

It's in the NA Library dude:
FRM, Forged Pistons, and Resleeving

BB6 Man · 09-18-2008, 10:55 PM

Quote:

Originally Posted by Artifex

Natalie, you amaze me. You should know this.

FRM is not Nikasil. Nikasil is a proprietary coating made by some company in europe.

It's in the NA Library dude:
FRM, Forged Pistons, and Resleeving

Thanks dude!