C43/55 track car manual transmission conversion

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Nov 8, 2018 | 12:50 PM
  #1  
Hi all

After much sheching I知 going to take the manual conversion on. I will do loads of pics and videos detailing how and why.
All parts will be R170 SLK320 sourced I値l trick the ECU with resister at least that痴 what I知 thinking.

Ive found a SLK320 in a scrap yard so will get the parts soon

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Nov 8, 2018 | 01:05 PM
  #2  
Quote:
Hi all

After much sheching I知 going to take the manual conversion on. I will do loads of pics and videos detailing how and why.
All parts will be R170 SLK320 sourced I値l trick the ECU with resister at least that痴 what I知 thinking.

Ive found a SLK320 in a scrap yard so will get the parts soon
Looking forward to seeing it. A guy in Los Angeles did it on a CLK430. I'll be curious what the weak point in that transmission will be with 5.4 liter power pushing through it. Going to use the factory SLK flywheel and clutch or use something like the Rennsport Factory setup?
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Nov 8, 2018 | 01:13 PM
  #3  
Quote: Looking forward to seeing it. A guy in Los Angeles did it on a CLK430. I'll be curious what the weak point in that transmission will be with 5.4 liter power pushing through it. Going to use the factory SLK flywheel and clutch or use something like the Rennsport Factory setup?

Yeah that CLK430 video is cool I値l go all SLK parts to begine with but will later go Rennsport
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Nov 8, 2018 | 05:57 PM
  #4  
Subscribed and looking forward to your reviews and pics
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Nov 9, 2018 | 10:02 AM
  #5  
I know a guy on the facebook group who used resistor(s) to trick the ECU into thinking it's always in neutral so it's possible. He claims to have already done this exact swap but that it slips. IIRC he wasn't sure if the motor was just too much for the transmission or if he just had a bad transmission
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Nov 9, 2018 | 11:00 AM
  #6  
Quote: I know a guy on the facebook group who used resistor(s) to trick the ECU into thinking it's always in neutral so it's possible. He claims to have already done this exact swap but that it slips. IIRC he wasn't sure if the motor was just too much for the transmission or if he just had a bad transmission

🤔 Could be the clutch slipping that痴 the weak point.
maybe an upretted clutch would help
Reply 0
Nov 10, 2018 | 11:07 AM
  #7  
Not got the manual parts yet should be next week so while I wait I致e stripped the old parts







Reply 0
Nov 10, 2018 | 12:22 PM
  #8  
I admire you doing a transmission swap out on the bricks, especially going into the winter in the UK.
Reply 1

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Nov 10, 2018 | 01:42 PM
  #9  
Quote: I admire you doing a transmission swap out on the bricks, especially going into the winter in the UK.

Thank you it痴 on the drive and I like that I can take my time with it
Reply 0
Nov 10, 2018 | 01:44 PM
  #10  
Quote: Is that the 722.631 transmission that weights 76.8 KG?
It's a heavy lump.

yep I値l weigh the manual when I get it
Reply 0
Nov 11, 2018 | 06:34 AM
  #11  

Might have to cut bigger hole for the manual selecter


When I did the 5.5 swoop i put a water outlet in the right hand cylinder head for the trans cooler I値l now blank it





Reply 0
Nov 11, 2018 | 08:04 AM
  #12  
Great stuff, awesome what you did with car.
Reply 1
Nov 17, 2018 | 09:15 AM
  #13  



Clearance is good

Made some new holes for R170 mounting

Feels good changing gear



Cutting hole for gear stick



SLK320 6speed

The linkage on left is from W203 the one on left is from R170 came with gearbox I知 using R170 on it sits further back
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Nov 17, 2018 | 09:19 AM
  #14  
Auto gear box weights 85kg with oil and tq convertor

manual weight 60Kg with oil and flywheel
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Dec 1, 2018 | 02:14 AM
  #15  
Video Part 1
enjoy guys


Reply 2
Jan 21, 2019 | 12:31 PM
  #16  
Pp

Used alloy bar as spacer mount 15mm thick

Bridged inhibitor switch green and gray wire


Welded in slk320 mount for selector feet

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Jan 21, 2019 | 02:54 PM
  #17  
Wired in starter switch button to bypass ECU so engine can start and rev out

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Jan 22, 2019 | 01:59 AM
  #18  
Good job dude

Regards
Jens
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Jan 22, 2019 | 03:34 AM
  #19  
Oh dear, thinking of some extra ventilation in the floor?


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Jan 22, 2019 | 04:17 AM
  #20  
Quote: Oh dear, thinking of some extra ventilation in the floor?


Lol yeah some holes to fill on clean up
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Jan 23, 2019 | 11:37 PM
  #21  
Is the starter switch basically to bypass the Park/Neutral signal from the AT?
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Jan 24, 2019 | 04:15 AM
  #22  
Quote: Is the starter switch basically to bypass the Park/Neutral signal from the AT?

yeah the the starter relay is switched by the ECU I used that wire for the new starter switch (see pic)



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Jan 26, 2019 | 06:13 AM
  #23  






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Feb 1, 2019 | 09:36 AM
  #24  
Just got the single mass flywheel









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Feb 1, 2019 | 09:39 AM
  #25  
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