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Old 07-30-2013, 06:09 PM   #1
Twin_Turbo_S54
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Girdle and Billet main caps for a stronger S54 bottom end

Been working on S54 and cut it to see details




Built my own girdle by 2006.



add to that a set of billet main caps and S54 bottom end get stronger.

I may build a package of S54 girdle and S54 billet main caps if there is interest. Both parts are not difficult to produce but they make the S54 bottom end stronger
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Old 07-31-2013, 06:40 AM   #2
Littleturbo
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Here we go again on another forum.
DA-Motorsport is open for buisiness again!!!let the problems begin.

You have to pay to be a vendor here,blabla talking that you will never sell "parts" again .
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Old 07-31-2013, 07:16 AM   #3
Twin_Turbo_S54
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Originally Posted by Littleturbo View Post
Here we go again on another forum.
DA-Motorsport is open for buisiness again!!!let the problems begin.

You have to pay to be a vendor here,blabla talking that you will never sell "parts" again .

I am not a vendor.

I have not got a product ready to sell on my shelf.

If there will be interest I can build these kits and these parts will help to make the S54 be stonger and make more power.

Can you imagine how much I will earn by selling a single girdle? 100 bucks? Do I need it? nope.

I have covered a long way with S54, still improving S54 and wanted to share my experience.

If I wanted I could come here and offer intake/exhaust manifolds.

I wanted to help the ones WHO want to improve their S54s.
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Old 07-31-2013, 09:24 AM   #4
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Is the thin piece of steel in the second pic the girdle? What is the thickness? 2mm? 3mm?
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Old 07-31-2013, 02:43 PM   #5
Twin_Turbo_S54
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Originally Posted by M3 2 NV View Post
Is the thin piece of steel in the second pic the girdle? What is the thickness? 2mm? 3mm?

5 mm thick
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Old 07-31-2013, 04:07 PM   #6
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Originally Posted by M3 2 NV View Post
Is the thin piece of steel in the second pic the girdle? What is the thickness? 2mm? 3mm?
I feel like this guy is foreign and does not detect your sarcasm. This is the 2nd thread I have seen him make about the S54 motor, with the second post bashing his existence. I think its time to give up.
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Old 08-01-2013, 02:15 PM   #7
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I think its a Mert...

Go search Bimmerforums for Mert... In Forced Induction...
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Old 08-01-2013, 04:37 PM   #8
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Originally Posted by GGray View Post
I think its a Mert...

Go search Bimmerforums for Mert... In Forced Induction...
Yes this is Mert.
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Old 08-03-2013, 12:07 AM   #9
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no way that thing is 5 mm.

also why not cut the cylinder/bore in the middle so you can see the true thickness of the bore? by offsetting the cut the walls look thicker than they truly are.

still looks like plenty of meat in the bores on inlet and exhaust side but probably not been the bores. maybe someone should do oval piston to maximise the cubic inch...
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Old 08-03-2013, 05:46 AM   #10
Twin_Turbo_S54
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Originally Posted by reggid View Post
no way that thing is 5 mm.

also why not cut the cylinder/bore in the middle so you can see the true thickness of the bore? by offsetting the cut the walls look thicker than they truly are.

still looks like plenty of meat in the bores on inlet and exhaust side but probably not been the bores. maybe someone should do oval piston to maximise the cubic inch...


this may be the prototype, but the ones installed on my M3s have a 5 mm thickness. I ve been working on S54 and the 5 mm girdle helped me.


I ve cut the block at several places, not enough meat.
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Old 08-03-2013, 06:07 AM   #11
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Quote:
Originally Posted by Twin_Turbo_S54 View Post
this may be the prototype, but the ones installed on my M3s have a 5 mm thickness. I ve been working on S54 and the 5 mm girdle helped me.


I ve cut the block at several places, not enough meat.
will the transverse members of the girdle flare out where they connect to the longitudinal pieces?
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Old 08-03-2013, 07:45 AM   #12
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Originally Posted by reggid View Post
will the transverse members of the girdle flare out where they connect to the longitudinal pieces?
what do you mean by flare out, I could not get it?
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Old 08-03-2013, 06:30 PM   #13
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http://blog.intengineering.com/wp-co...4/IMG_0192.jpg

look at how the transverse members transition/taper to the longitudinal ones to try a maximize the stiffness
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Old 08-04-2013, 05:45 AM   #14
Twin_Turbo_S54
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Quote:
Originally Posted by reggid View Post
http://blog.intengineering.com/wp-co...4/IMG_0192.jpg

look at how the transverse members transition/taper to the longitudinal ones to try a maximize the stiffness

I see what you mean, thank you for this information.

I will test if the we can make the transitions beefier but as far as I remember the crankahaft is turning with close clearances, so a beefier transition may not be possible.
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