E36 M3 Turbo - Rebuild

[Mohammed@Auto X-cessorize]

EINA.. good luck with the rebuild bro..

so what pistons would one use in a rebuild like this and even in a normal 3.0 motor rebuild. I ask out of curiosity..

normal rebuild i would opt for standard original pistons or digh comp forged, for this build got my eye on a set of custom e36 m3 Arias Forged pistons, lets hope they come through

 

[Rodney///Marsh]

EINA.. good luck with the rebuild bro..

so what pistons would one use in a rebuild like this and even in a normal 3.0 motor rebuild. I ask out of curiosity..

normal rebuild i would opt for standard original pistons or digh comp forged, for this build got my eye on a set of custom e36 m3 Arias Forged pistons, lets hope they come through

niiiice.. but say, I need to go 20 or 40thou over. would I take a Mahle piston or Arias or so.. I am only asking

 

[Mohammed@Auto X-cessorize]

EINA.. good luck with the rebuild bro..

so what pistons would one use in a rebuild like this and even in a normal 3.0 motor rebuild. I ask out of curiosity..

normal rebuild i would opt for standard original pistons or digh comp forged, for this build got my eye on a set of custom e36 m3 Arias Forged pistons, lets hope they come through

niiiice.. but say, I need to go 20 or 40thou over. would I take a Mahle piston or Arias or so.. I am only asking

depends whats available, Mahle is good for a stock build, we normally oversize the bore when we use forged pistons to compensate for expansion when hot

 

[Peter@AEW]

My understanding is that the reputable piston manufacturers will give a spec sheet for machining depending on piston application.

So whether one fits MAHLE/ARIAS etc each manufacturer will give His specific clearance between piston and bore.

Now the art lies in the "mechanics" experience to instruct the machinist by how much more the bore must be machined than the number given by the piston manufacturer.

In most instances these tolerances form part what is known as IP.

 

[Mohammed@Auto X-cessorize]

My understanding is that the reputable piston manufacturers will give a spec sheet for machining depending on piston application.

So whether one fits MAHLE/ARIAS etc each manufacturer will give His specific clearance between piston and bore.

Now the art lies in the "mechanics" experience to instruct the machinist by how much more the bore must be machined than the number given by the piston manufacturer.

In most instances these tolerances form part what is known as IP.

+1 i agree

 

[Mohammed@Auto X-cessorize]

Guess what has arrived..........:rollsmile:

 

[UpNcOmiNg!]

New mouse? :fencelook:

Aaaah so much pretty in that.
What comp you looking to make with those pistons?

 

[Rodney///Marsh]

My understanding is that the reputable piston manufacturers will give a spec sheet for machining depending on piston application.

So whether one fits MAHLE/ARIAS etc each manufacturer will give His specific clearance between piston and bore.

Now the art lies in the "mechanics" experience to instruct the machinist by how much more the bore must be machined than the number given by the piston manufacturer.

In most instances these tolerances form part what is known as IP.

aaaaaaaah.. ok.. now all of this is starting to make sense.

thanks you Sir

---

that's some pretty stuff Mo. its a shame it must be hidden away.

 

[Peter@AEW]

What make are they Mo?

 

[Mohammed@Auto X-cessorize]

What make are they Mo?

Arias

 

[Peter@AEW]

Nice they have a good name for turbo applications.

 

[Mohammed@Auto X-cessorize]

Nice they have a good name for turbo applications.

yes, they have only been good to me in the past, especially when used for the right application. Used wrong as this car had before they can cause a bit of damage, if you compare the height between the pockets and the ring land between the new piston and previous you can see what I mean

 

[Mohammed@Auto X-cessorize]

Parts arriving....... :rollsmile:

 

[Inactive]

Mo please help me learn. You said regarding the old pistons "BUT these pistons had valve pockets cut... thereby weakening the edges and much less meat going into the first ring landing."

What does this mean and wont the new pistons have the same problem?

(sorry Im learning all this stuff)

Thx

 

[GPGrobler]

No need to mention the builder, its evident by the modified plenum chamber and blue hoses.

*subscribed*

Bahaha, not to mention the welds.

Neat! :clapper:

 

[Mohammed@Auto X-cessorize]

Mo please help me learn. You said regarding the old pistons "BUT these pistons had valve pockets cut... thereby weakening the edges and much less meat going into the first ring landing."

What does this mean and wont the new pistons have the same problem?

(sorry Im learning all this stuff)

Thx

lol.... no stress, we all learning, the old pistons didn't have the correct height as they were not for this exact application, so instead of having the correct size pockets when the piston was forged, they cut in the pockets, the new pistons are for this application and the correct size pockets were made when the piston was made(forged)..
Hope this helps

 

[Inactive]

Ok cool Thank you.