Converting SD1 callipers for use on vented discs.
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Converting SD1 callipers for use on vented discs.
I might get some SD1 callipers but they are for solid discs. To convert them for use on vented discs requires a spacer which I don't imagine is available so will have to have one made.
They only have a single feed don't they, so presumably this spacer will need seals and so on so fluid can pass over the bridge. Has anyone done this?
They only have a single feed don't they, so presumably this spacer will need seals and so on so fluid can pass over the bridge. Has anyone done this?
- Ian Anderson
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Re: Converting SD1 callipers for use on vented discs.
The SD1 Vitesse and EFI had vented discs so had the spacer between halves.ppyvabw wrote:I might get some SD1 callipers but they are for solid discs. To convert them for use on vented discs requires a spacer which I don't imagine is available so will have to have one made.
They only have a single feed don't they, so presumably this spacer will need seals and so on so fluid can pass over the bridge. Has anyone done this?
They do come up on Ebay - and I'd guess they'd cost a lot less than having the spacers made.
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
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Re: Converting SD1 callipers for use on vented discs.
I used the SD1 AP 4 pot calipers on my BV8 conversion in combination with MGBV8 discs, I got the cross drilled V8 discs from Moss.ppyvabw wrote:I might get some SD1 callipers but they are for solid discs. To convert them for use on vented discs requires a spacer which I don't imagine is available so will have to have one made.
They only have a single feed don't they, so presumably this spacer will need seals and so on so fluid can pass over the bridge. Has anyone done this?
The calipers will bolt striaght on but need thinwall sleeves to fit in the bolt holes to make up for the smaller MGB bolt size or if you can get them the TR8 bolts will do the job.
The sleeves were available from V8 Conversions 01689 858716 he also does the braided hoses for these calipers.
The above combination will be more than adequate except for all out circuit racing and is a very cost effective upgrade.
The 4 pot caliper really needs 15" wheels but a friend got them to work with 14" wheels by using external balance weights, the stick on ones that fit on the inside of the wheel will foul the calipers.
Kevin.
Re: Converting SD1 callipers for use on vented discs.
The four pot calipers (non vented discs) were used on the SD1 with 14" wheels - only the vented were used on the Vitesse/EFI which had 15".CastleMGBV8 wrote:I used the SD1 AP 4 pot calipers on my BV8 conversion in combination with MGBV8 discs, I got the cross drilled V8 discs from Moss.ppyvabw wrote:I might get some SD1 callipers but they are for solid discs. To convert them for use on vented discs requires a spacer which I don't imagine is available so will have to have one made.
They only have a single feed don't they, so presumably this spacer will need seals and so on so fluid can pass over the bridge. Has anyone done this?
The calipers will bolt striaght on but need thinwall sleeves to fit in the bolt holes to make up for the smaller MGB bolt size or if you can get them the TR8 bolts will do the job.
The sleeves were available from V8 Conversions 01689 858716 he also does the braided hoses for these calipers.
The above combination will be more than adequate except for all out circuit racing and is a very cost effective upgrade.
The 4 pot caliper really needs 15" wheels but a friend got them to work with 14" wheels by using external balance weights, the stick on ones that fit on the inside of the wheel will foul the calipers.
Kevin.
The bit that gives trouble is the pistons - they are chrome plated and rust.
New ones can be expensive - especially stainless replacements. But they are the same on both vented and non vented callipers
Even the vented setup is poor by modern standards on an SD1. I have converted mine to XJS front brakes which are a very worthwhile mod. But these do need 15" or larger wheels.
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
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- Top Dog
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Dave,
But your car is 50% heavier and the same size brake caliper was used on the even heavier early range rover albeit with a slightly different fitment arrangement.
With the B the SD1 caliper is more than capable of locking the brakes even with todays much more sticky tyres, the only issue with racing usage would be the onset of brake fade.
Kevin.
But your car is 50% heavier and the same size brake caliper was used on the even heavier early range rover albeit with a slightly different fitment arrangement.
With the B the SD1 caliper is more than capable of locking the brakes even with todays much more sticky tyres, the only issue with racing usage would be the onset of brake fade.
Kevin.
Oh indeed. But my EFI would suffer fade all too easily with enthusiastic road use. So gawd knows what the models with poorer brakes were like.CastleMGBV8 wrote:Dave,
But your car is 50% heavier and the same size brake caliper was used on the even heavier early range rover albeit with a slightly different fitment arrangement.
With the B the SD1 caliper is more than capable of locking the brakes even with todays much more sticky tyres, the only issue with racing usage would be the onset of brake fade.
Kevin.
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
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- Ian Anderson
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Or Wilwood calipers
Loads of possibilities and most "combinations" can be done including 6 pots into 15 inch wheels
Ian
Loads of possibilities and most "combinations" can be done including 6 pots into 15 inch wheels
Ian
Owner of an "On the Road" GT40 Replica by DAX powered by 3.9Hotwre Efi, worked over by DJ Motors. EFi Working but still does some kangaroo at low revs (Damn the speed limits) In to paint shop 18/03/08.
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