TheNosR

this post is for anyone who doesnt believe that you can hone frms if any one is interest post and i will type out the process that i took in doing this and im very happy with the out come pics will be posted soon

harlen

its not impossible to hone frms, you just have to follow the right steps (helms). i'm wondering how you did yours?

aeolus

Whoever does it for u should have some experience in honing this type of block.

ExplicitSpeed360

Keep us updated! I may send you my block Kevin? haha jp

P h i l

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aeolus &raquo;</TD></TR><TR><TD CLASS="quote">Whoever does it for u should have some experience in honing this type of block.</TD></TR></TABLE>

He did it him self and it measure perfect and looks good

And it is possible

v4lu3s

its cool that you have access to a machine that can hone at 45-50 rpm. thats the only thing that really makes it hard since most hones usually dont go down below 150 rpm or so...

bdpetska

im interested in building my h22 with the mahle pistons. im trying to do some research before i start my rebuild. any info would be great. thanks

O RLY

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by harlen &raquo;</TD></TR><TR><TD CLASS="quote">its not impossible to hone frms, you just have to follow the right steps (helms). i'm wondering how you did yours?</TD></TR></TABLE>

I second that. They can actually be bored out to 87.5. Any further gets into the reinforcing fibers. This little fact brought to you from the Tech Team at Mahle Motorsports.

ej8

I'm pretty sure you are only suppost to use the cloth on it to hone it

hotimportcrx

In order to properly hone any H series motor you have to use an aluminum honer. If you use a regular honer, it doesnt work. Ive taken a short block to a machine shop that had no idea you were suppose to use an aluminum honer and the cylinders have the shape of egg shells.

2point2

Any know of any new success stories regaurding mahle pistons?

Eman919

i'm getting ready to buy some mahle pistons from 98h22, but they are .20 oversized.

Based, on what you guys were saying, you can't bore out the sleeves the same way you would normally bore a b-series, right? A machine shop would have to know what they are doing? Hmmmmm, <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by O RLY &raquo;</TD></TR><TR><TD CLASS="quote">

I second that. They can actually be bored out to 87.5. Any further gets into the reinforcing fibers. This little fact brought to you from the Tech Team at Mahle Motorsports. </TD></TR></TABLE>

so, i should be fine having only to bore to 87.20mm right?...ACCORDING TO mahle.

I down to try this **** out.... but boring out is worrying me

dude_123

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eman919 &raquo;</TD></TR><TR><TD CLASS="quote">i'm getting ready to buy some mahle pistons from 98h22, but they are .20 oversized.

Based, on what you guys were saying, you can't bore out the sleeves the same way you would normally bore a b-series, right? A machine shop would have to know what they are doing? Hmmmmm,

so, i should be fine having only to bore to 87.20mm right?...ACCORDING TO mahle.

I down to try this **** out.... but boring out is worrying me </TD></TR></TABLE>

Wrong conversion will throw off the boring and ruin your day. 20 thousand = .5mm so u should bore ur cylinders to 87.5mm (target/final size), but don't forget you have to leave a few thousands for honing. So final bore before honing should be around 3.442 - 3.443" (87.427mm -87.45mm), honing will take off about .002-.003" (depends on how many passes) then u should be close to your final size of 87.5. Usually when the sizes are .10,.20,.30. etc they are in thousands not mm. MM are expressed in .25,.50,.75, and so on

Eman919

know of any machine shops around so cal, that know what they are doing with FRM sleeves?

h23vtecDA

Contact Precision Head out of San Diego, CA they will have a legit source for a good FRM able machine shop

Eman919

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by h23vtecDA &raquo;</TD></TR><TR><TD CLASS="quote">Contact Precision Head out of San Diego, CA they will have a legit source for a good FRM able machine shop</TD></TR></TABLE>

Nice nice

Im in the LA so not too far...

MikeySpec

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 &raquo;</TD></TR><TR><TD CLASS="quote">Any know of any new success stories regaurding mahle pistons?</TD></TR></TABLE>

Yes, ive already done a couple with 230+whp on pump through the exhaust on a dynojet all motor. The cars are daily driven with plenty of abuse. No problems at all, everything went very smooth. I debur the edges on the pistons though, the high comp mahles have very sharp edges.

Eman919

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MikeySpec &raquo;</TD></TR><TR><TD CLASS="quote">

Yes, ive already done a couple with 230+whp on pump through the exhaust on a dynojet all motor. The cars are daily driven with plenty of abuse. No problems at all, everything went very smooth. I debur the edges on the pistons though, the high comp mahles have very sharp edges.</TD></TR></TABLE>

any on those set-ups standard bore?

MikeySpec

Both oversized .25