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Coco_Lev

Joined: 04 May 2020 Posts: 46 Location: France
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Posted: Wed Jun 03, 2020 2:23 am Post subject: Forged conrods manufacturing |
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Hi everyone,
A member of the club had asked me if it would be possible to make forged conrods.
Of course, I can provide you a set of real 4340 steel, shot peened conrods for 390€ incl. shipping to UK (but without the bolts ~80€ of ARP). To launch a production we need to order 10 sets, as the forging matrix is quiet expansive to build.
This can seem really cheap parts, but there is no marketing on the product, neither intermediate reseller. Here is the only difference of price with a 1000$ set.
Is there anyone interested?
Infos there : https://www.mespiecesauto.com/en/bielle-origine-ou-bielle-forgee-avantage-comment-les-choisir-a-quoi-faire-attention/
Last edited by Coco_Lev on Tue Jun 09, 2020 1:48 am; edited 2 times in total |
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gegge

Joined: 27 Jul 2007 Posts: 1088 Location: Sweden
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Posted: Wed Jun 03, 2020 4:53 am Post subject: |
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I´m interested. _________________ Carl Fredrik Torkildsen
924 turbo -81 Carrera GT RESTOMOD
924 turbo -80 Dolomite De Luxe
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black turbo with Fuchs |
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safe

Joined: 18 Mar 2017 Posts: 210 Location: Sweden
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Posted: Wed Jun 03, 2020 5:50 pm Post subject: |
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I'm in! |
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Juho

Joined: 03 Oct 2018 Posts: 160 Location: Finland
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Posted: Thu Jun 04, 2020 1:26 am Post subject: |
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intrested..... |
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vonmoogen
Joined: 12 Feb 2013 Posts: 7 Location: UK
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Posted: Fri Jun 05, 2020 1:06 am Post subject: |
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Id be interested too _________________ Rob |
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Coco_Lev

Joined: 04 May 2020 Posts: 46 Location: France
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Posted: Sat Jun 06, 2020 3:30 am Post subject: |
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I've got a fifth person interested. We need 5 more now.  |
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Coco_Lev

Joined: 04 May 2020 Posts: 46 Location: France
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Posted: Wed Jun 10, 2020 5:57 pm Post subject: |
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The conrods has been designed, and ordered to the factory this morning
The weight should be near 570g without the bolts. It corresponds to 600-610 g with the ARP bolts. This is an estimation. We hope the parts to be available within 2 months. |
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safe

Joined: 18 Mar 2017 Posts: 210 Location: Sweden
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Posted: Wed Jun 10, 2020 6:05 pm Post subject: |
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Coco_Lev wrote: | The conrods has been designed, and ordered to the factory this morning
The weight should be near 570g without the bolts. It corresponds to 600-610 g with the ARP bolts. This is an estimation. We hope the parts to be available within 2 months. |
Cool, that is light!
Original is 877g and the Aliexpress H-rods I have are 707g (all with bolt I think, 99% certain it were).
What kind of power levels have you designed them for? |
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Coco_Lev

Joined: 04 May 2020 Posts: 46 Location: France
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Posted: Wed Jun 10, 2020 9:12 pm Post subject: |
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safe wrote: |
Cool, that is light!
Original is 877g and the Aliexpress H-rods I have are 707g (all with bolt I think, 99% certain it were).
What kind of power levels have you designed them for? |
Previous conrods manufactured has often been set up on >400hp 2L 4cylinders engines without any concern.
Some of these engines have reached 600hp without bending the conrods.
I could give more precise informations if you desire to reach such levels of power!  |
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safe

Joined: 18 Mar 2017 Posts: 210 Location: Sweden
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Posted: Wed Jun 10, 2020 9:43 pm Post subject: |
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Coco_Lev wrote: | safe wrote: |
Cool, that is light!
Original is 877g and the Aliexpress H-rods I have are 707g (all with bolt I think, 99% certain it were).
What kind of power levels have you designed them for? |
Previous conrods manufactured has often been set up on >400hp 2L 4cylinders engines without any concern.
Some of these engines have reached 600hp without bending the conrods.
I could give more precise informations if you desire to reach such levels of power!  |
400 is my target! |
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Kenodog

Joined: 25 Jun 2003 Posts: 2584 Location: Vancouver,B.C.
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Posted: Thu Jul 02, 2020 5:30 am Post subject: |
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Well NOW I see this, right when my motor is nearing completion, lol. _________________ 1979 Euro 931, Olive
1981 931, Sabine
2014 Mazda CX-5 (Kinderwagon)
2008 GS500
2016 DR650
2019 KTM 790 Adventure |
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safe

Joined: 18 Mar 2017 Posts: 210 Location: Sweden
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Posted: Thu Jul 02, 2020 5:36 am Post subject: |
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Coco, valves looks hard to find, for the NA 924 (I need exhaust valves right now).
You don't have connections that can make some nice stainless inlet and exhaust valves, maybe even 1 or 2 mm oversize?
I would by at least 2 sets. |
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Cédric

Joined: 27 Aug 2004 Posts: 2077 Location: Sweden
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Posted: Thu Jul 02, 2020 6:03 am Post subject: |
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How have you done with the piston cooling oil squirter hole? Are there any sets extra available? _________________ 1980 924 Turbo |
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MikeJinCO
Joined: 08 Jun 2010 Posts: 967 Location: Maysville, Colorado
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Posted: Sun Jul 05, 2020 11:32 pm Post subject: |
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Safe-- SI valves have both 924 and 931 valves in their catalog. _________________ Mike
Poco a Poco, #033 '78 Vintage racer, SCCA Dp-81
'77 924
cricketdesigns.com |
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safe

Joined: 18 Mar 2017 Posts: 210 Location: Sweden
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Posted: Sun Jul 05, 2020 11:56 pm Post subject: |
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MikeJinCO wrote: | Safe-- SI valves have both 924 and 931 valves in their catalog. |
Not anymore... They cant do 9mm stems.
Edit: They have no 9mm blanks was their specific answer. |
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