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Self Build Supercharger Setup


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#1 JonnyAlpha

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Posted 01 November 2021 - 03:49 PM

This is merely a study at the mo, but I am looking for information on putting together the parts required for and fitting a supercharger using SH self made parts.

Apart from some old threads from 5+ years ago, there doesn't seem to be a lot of information on here that I can find. I have scoured the Internet and although there are lots of videos etc on installing OTS kits nothing for the DIY enthusiast.

 

So far all I have managed to find is the following few snippets to get some ideas from:

 

http://www.dutchysmi...ercharging.html

 

https://www.theminif...-metro-998-hle/

 

https://www.tapatalk...ries-t1410.html

 

I have also watched Stuart from Vmaxscart's video where he discusses a selection of Superchargers that are suitable for the Mini.

 

So from what I have read I think at the very minimum I would need to acquire / fabricate:

 

  • Supercharger (Eaton M45 from an R53 Mini) Not sure what others would do?
  • Multi Vee Belt Pulley - from an MPI Mini 
  • Multi Vee Belt
  • Inlet manifold
  • Carburettor adaptor (to fit the carb to the supercharger)
  • De-Compression Plate (Various info on what CR is OK) 
  • Modified Timing Case (Breather removed and tensioner pulley fitted?
  • Belt Tensioner?

If I were to go down this route I have a 1310 with a Weber DCOE 45 so that's the adaptor plate that I would need? 

 

Questions:

 

1. Which SuperChargers can be used? (There are loads of Superchargers available Second Hand / New / Refurbished lots of service / rebuild kits available for the M45)

 

2. What is the easiest setup? 

 

3. Would a centre main strap be needed? 

 

Thanks in advance for any pointers. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



#2 JonnyAlpha

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Posted 06 November 2021 - 04:33 PM

Not many takers here then :-(


Edited by JonnyAlpha, 06 November 2021 - 04:33 PM.


#3 sonscar

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Posted 06 November 2021 - 06:53 PM

Sometimes you just have to wake up early and run with it,or go out for a look after tea and come back in at breakfast.Good luck with your choice,Steve..

#4 Tones61

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Posted 06 November 2021 - 08:53 PM

Not many takers here then :-(


You need to speak to turbo Phil ,
He's on my fbook friends,
I will pm you ok bill

#5 JonnyAlpha

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Posted 10 November 2021 - 08:56 PM

So superchargers and classic minis appear to be one of those niche things where there is not a lot of info around.

Whilst there is info on CR / Boost etc, there is not a lot of info on putting together a supercharger going down the DIY route.

 

I have been communicating with Turbo Phil and Stuart Garr, both have been helpful but understandably busy and can't answer all of my questions.

 

Stuart is suggesting I need an Eaton M62 as opposed to an M45, sadly there are a lot more M45's available SH than M62's and cheaper :-) Seems I have been confusing things. The SC recommended by Stuart Gurr (Vmaxscart) for a 1300, is the M65 (pic below). Both the M45 and the M65 output around 0.7Litres per revolution, the M62 however is more like 1 Litre which is considered too much I guess?

 

Looking at the M62 (and probably M45) the end opposite to the pulley would need chopping off and modifying to bolt on a Weber DCOE 

 

E.G taking an M62 M65 like this:

 

GkS77jE.jpg

 

To look like this:

 

31Evyg4.jpg

 

Unless info on doing this will be in Stuart's forthcoming DIY kit installation video.  


Edited by JonnyAlpha, 15 November 2021 - 11:09 AM.


#6 timmy850

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Posted 11 November 2021 - 09:53 PM

Honestly that’s why they sell kits. They do the research, come up with solutions and make a little bit of money

Things like the manifold would be easy enough to fabricate by yourself, but when you get to pulleys to get the right boost, belt alignment and getting it tuned properly it gets more tricky.

You’ve also got to work out of the current fuel system is suitable, what you’ll do about ignition retard under boost, will it fit under the bonnet with a decomp plate and “chargecooler” etc. Dished pistons or a modified head would be miles better than a decomp plate (my friend tried the decomp plate and then the head studs were too short and it hit the bonnet) and will you do a different cam to suit? You’ll also need to strengthen the gearbox etc to cope. You might find the actual supercharger kit is the cheapest part of the whole conversion

Theres lots of additional stuff to sort out over the top of any kit and that’s where the guy selling the kits should be able to help.

#7 JonnyAlpha

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Posted 15 November 2021 - 11:22 AM

So, after trawling FB Marketplace and eBay, looks like I now have an M65, in what looks like good condition, winging it's way to me. 

Looks like Iv'e just extended the Engine project and increased the expenditure!!!

 

It was a failed sale (e.g. got no bids) I messaged the seller and we struck a deal and he re-listed it and I got it for £60. 

 

ANelDxe.jpg



#8 REDICE

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Posted 25 December 2021 - 10:34 PM

Your first pic is a 45 off a mercedes. This is what I have used.

Get some good deep dish pistons to lower the compression.

Suck through sucks.

Look at the post " Front mounted supercharger with standard body work"  about 3-4 pages back

there is another similar on you tube.

Attached Files


Edited by REDICE, 25 December 2021 - 11:00 PM.


#9 REDICE

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Posted 25 December 2021 - 10:47 PM

If you want to do it right you have definitely increased expenditure!!!



#10 nicklouse

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Posted 26 December 2021 - 12:49 AM

Your first pic is a 45 off a mercedes. This is what I have used.

Get some good deep dish pistons to lower the compression.

Suck through sucks.

Look at the post " Front mounted supercharger with standard body work"  about 3-4 pages back

there is another similar on you tube.

I hope you fitted the fan correctly before putting the engine into the car.



#11 JonnyAlpha

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Posted 26 December 2021 - 12:25 PM

Your first pic is a 45 off a mercedes. This is what I have used.
Get some good deep dish pistons to lower the compression.
Suck through sucks.
Look at the post " Front mounted supercharger with standard body work" about 3-4 pages back
there is another similar on you tube.


So basically you have taken an unmodified Supercharger and mounted it in the front of the engine. Looks like it’s then blowing forced air through a HIF carb.
I’ll take a look.

#12 REDICE

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Posted 11 January 2022 - 07:17 AM

Yeah I know the fans on backwards. Lucky its not in the car yet - these things take time you know.... the body is off to get murdered soon. Will use an electric fan as well.






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