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Log inF.A.O Ian re: Superchargers
F.A.O Ian re: Superchargers
by norfolkminis on Mon Oct 15, 2007 8:08 pm
Just read this on minifinity.
So the mpi supercharger is just the same if not worse!!
http://www.minifinity.com/index.php?name=PNphpBB2&file=viewtopic&t=69406
you may get some ideas to try on yours though???
Craig
So the mpi supercharger is just the same if not worse!!
http://www.minifinity.com/index.php?name=PNphpBB2&file=viewtopic&t=69406
you may get some ideas to try on yours though???
Craig
www.drive.to/nmoc
Re: F.A.O Ian re: Superchargers
by Ian Nicholls on Tue Oct 16, 2007 6:39 pm
Thanks for that Craig.
It appears the supercharger kit is in the BMC/BL tradition, the customers do the development work !
I think a return to carbs is now likely.
If you want a fast car, buy one with a big engine.
It appears the supercharger kit is in the BMC/BL tradition, the customers do the development work !
I think a return to carbs is now likely.
If you want a fast car, buy one with a big engine.
Re: F.A.O Ian re: Superchargers
by Ian Nicholls on Thu Oct 18, 2007 6:32 pm
Ok here is my current thoughts for my Mini.
Webcom aluminium head
Swiftune SW5 cam
twin 1-5 SU carbs
3-44 to 1 final drive
Webcom aluminium head
Swiftune SW5 cam
twin 1-5 SU carbs
3-44 to 1 final drive
Re: F.A.O Ian re: Superchargers
by TOO LOW on Mon Oct 22, 2007 3:41 pm
Aluminium head, are you ritch?!?! 
Sw5 cam is great, I cannot rate it highly enough.
So wil this mean the "charger" is for sale soon?
Sw5 cam is great, I cannot rate it highly enough.
So wil this mean the "charger" is for sale soon?
Re: F.A.O Ian re: Superchargers
by Ian Nicholls on Mon Oct 22, 2007 7:24 pm
Probably.
I will flog the set up for £500.
I will flog the set up for £500.
Re: F.A.O Ian re: Superchargers
by TOO LOW on Mon Oct 22, 2007 10:44 pm
Let me know when you do please mate.
Re: F.A.O Ian re: Superchargers
by Ian Nicholls on Thu Oct 25, 2007 5:42 pm
I have uploaded this scan from a 1965 AUTOSPORT of a Downton tuned Mini Cooper 1275S.
Please take time to read it as it is not just a history lesson, its perhaps the ideal Mini and something similar can be built now. I plan to convert my Mini to a similar spec. I will retain the current cylinder head as Trevor of TMW engineering says it is still OK to use. I will bring back the twin 1-5 inch SU's and a new Swiftune SW5 camshaft, Maniflow exhaust etc.
Back in 1965 777MCG used a 3-44 to 1 final drive with 10 inch wheels which gave an overall gearing of 16-56 miles per 1000 rpm which was crucial to its fantastic performance. Up to 50 mph it could match a 4-2 litre series 2 Jaguar E-Type ! Later Mini's such as mine, H829FLE , had 4th gear so high that it was really an overdrive gear and pushing a Mini beyond 90 mph was difficult.
To fit H829FLE with a 3-44 to 1 final drive with its 12 inch wheels would make overall gearing 17-32 mph per 1000 rpm. But a delve into the history books reveals that a 1275GT with the 3-44 FD/10 inch wheel set up could reach 90 mph , but the post 1974 models when fitted with 12 inch wheels could only reach 86 mph. The torque of the 1275 cc engine was not enough to pull the higher overall gearing.
So I calculate that if H829FLE is fitted with a 3-65 to 1 FD, it would have overall gearing of 16-33 mph per 1000 rpm, the nearest to 777MCG in 1965.
What do the rest of you think ?
Please take time to read it as it is not just a history lesson, its perhaps the ideal Mini and something similar can be built now. I plan to convert my Mini to a similar spec. I will retain the current cylinder head as Trevor of TMW engineering says it is still OK to use. I will bring back the twin 1-5 inch SU's and a new Swiftune SW5 camshaft, Maniflow exhaust etc.
Back in 1965 777MCG used a 3-44 to 1 final drive with 10 inch wheels which gave an overall gearing of 16-56 miles per 1000 rpm which was crucial to its fantastic performance. Up to 50 mph it could match a 4-2 litre series 2 Jaguar E-Type ! Later Mini's such as mine, H829FLE , had 4th gear so high that it was really an overdrive gear and pushing a Mini beyond 90 mph was difficult.
To fit H829FLE with a 3-44 to 1 final drive with its 12 inch wheels would make overall gearing 17-32 mph per 1000 rpm. But a delve into the history books reveals that a 1275GT with the 3-44 FD/10 inch wheel set up could reach 90 mph , but the post 1974 models when fitted with 12 inch wheels could only reach 86 mph. The torque of the 1275 cc engine was not enough to pull the higher overall gearing.
So I calculate that if H829FLE is fitted with a 3-65 to 1 FD, it would have overall gearing of 16-33 mph per 1000 rpm, the nearest to 777MCG in 1965.
What do the rest of you think ?