AMR 'charger
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biggles
- Posts: 337
- Joined: Tue Apr 10, 2012 8:10 am
AMR 'charger
Anyone have any thoughts or experience of the AMR supercharger. They are only 300 quid! That might be a pound per mile of expected life, of course, hence my question!
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alleggerita
- Posts: 131
- Joined: Thu Jun 30, 2011 6:06 pm
- Location: Uden, the Netherlands
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Re: AMR 'charger
I have been looking into these things before, see one of my other posts on this.
More specifically on AMR this could be interesting to read:
https://forum.retro-rides.org/thread/21 ... kit-series
If you want to go cheap I would try to source a Mini or Mercedes SLK breaker
More specifically on AMR this could be interesting to read:
https://forum.retro-rides.org/thread/21 ... kit-series
If you want to go cheap I would try to source a Mini or Mercedes SLK breaker
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jonclancy
- Posts: 993
- Joined: Tue Nov 01, 2011 9:30 pm
Re: AMR 'charger
What does Vizard say? I have thought about this, too. Wondering if it would be easier power by more conventional rootes.
See what I did there?
See what I did there?
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biggles
- Posts: 337
- Joined: Tue Apr 10, 2012 8:10 am
Re: AMR 'charger
Groan! You must have eaton something funny to come up with that shorrocker! Any more of that and you’ll find yerself villiersfied for poor punning!
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jonclancy
- Posts: 993
- Joined: Tue Nov 01, 2011 9:30 pm
Re: AMR 'charger
Very good. Very good indeed…
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alleggerita
- Posts: 131
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- Location: Uden, the Netherlands
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Re: AMR 'charger
Please, let us not overblow these things
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Westfield 129
- Posts: 882
- Joined: Sat Jun 04, 2011 4:20 am
Re: AMR 'charger
A supercharger is sure romantic... Everyone wants one, and here, the 300 quid blower is only $150 on Amazon (but not in California at any price, from Amazon, anyway).
Adding a supercharger causes all sorts of new things to happen. Designing a proper mounting, for one, especially in the 11s engine compartment. Then there is the drive, and the carburetion/ignition setup. And, if you had an easy way to handle those things, do you really want a £300 supercharger, turning maybe 8000 RPM in your feeding your engine? Imagine the perhaps not so precise rotors coming into contact with each other, shedding metal past your intake valves, into the cylinder bores... Just say'n...
Moss will sell you a Spridget setup for about $6000 USD. 'Should work. At least the hard parts are done properly.
You can fix your engine to make a nice, reliable 125 HP. All it takes is money and a few parts, the most important being a really good cylinder head. I recommend Longman, but the PBS alloy cylinder head can work just as well, and can handle an angled exhaust valve... The cost is about that of a real supercharger, but then, power costs money. All the good bits are available in the UK. longan head, Kent scatter pattern cam, Longman head, light weight flywheel and some high compression pistons. A big old Weber on Maniflow 6" intake and LCB exhaust to finish it off, along with some roller rockers. Don't forget the 1380 overbore. That's what I have, and Jon can testify to the power, and the surprising flexibility.
Adding a supercharger causes all sorts of new things to happen. Designing a proper mounting, for one, especially in the 11s engine compartment. Then there is the drive, and the carburetion/ignition setup. And, if you had an easy way to handle those things, do you really want a £300 supercharger, turning maybe 8000 RPM in your feeding your engine? Imagine the perhaps not so precise rotors coming into contact with each other, shedding metal past your intake valves, into the cylinder bores... Just say'n...
Moss will sell you a Spridget setup for about $6000 USD. 'Should work. At least the hard parts are done properly.
You can fix your engine to make a nice, reliable 125 HP. All it takes is money and a few parts, the most important being a really good cylinder head. I recommend Longman, but the PBS alloy cylinder head can work just as well, and can handle an angled exhaust valve... The cost is about that of a real supercharger, but then, power costs money. All the good bits are available in the UK. longan head, Kent scatter pattern cam, Longman head, light weight flywheel and some high compression pistons. A big old Weber on Maniflow 6" intake and LCB exhaust to finish it off, along with some roller rockers. Don't forget the 1380 overbore. That's what I have, and Jon can testify to the power, and the surprising flexibility.
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biggles
- Posts: 337
- Joined: Tue Apr 10, 2012 8:10 am
Re: AMR 'charger
Yes, good points Jan, particularly re the knock on effects of a cheap charger breaking down. The Eaton unit on my 2002 BMW Cooper S is still going great guns at 136,000 miles. When I first got the car at about 100,000, I serviced the blower and could find no play in the bearings, with the oil inside still in ok condition, so a used unit could be a better option, and cheaper too at about £150 or 200USD.