iainbja Posted September 28, 2023 Report Share Posted September 28, 2023 I am considering fitting one the brake servo kits you can get for the Triumph Spitfire. Mine is a mark 4 single circuit master cylinder. The kits that are around £80. I realise it does not improve braking performance but because I tow a caravan I thought it might make the pedal a bit easier when towing. My question is how does the thing plumb in not really the the brake pipes more the vacuum side do you have to drill the inlet manifold or is there somewhere to take the feed from. Has anyone fitted one of these kits your advice would be helpful regards James Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 28, 2023 Report Share Posted September 28, 2023 all the kits sold are a one size fits all so its just a universal kit and certainly not model specific you can fit it ant way you fancy , you probably will need to drill the manifold , use a greased drill and tap to catch the swarf as for servo position , well theres a whole multitude of ideas over the clutch master cyl next to the battery some even fitted in the boot . you will need a hose /threaded adaptor as thats not normally in the kit pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted September 28, 2023 Report Share Posted September 28, 2023 (edited) My GT6 originally had a Girling servo until it couldn't be revived, now a Lockheed kit type, which I think better. Also you might like to look into Mintex 11/44 brake pads, expensive but VERY good and do improve your stopping distance. Doug Edited September 28, 2023 by dougbgt6 Link to comment Share on other sites More sharing options...
johny Posted September 28, 2023 Report Share Posted September 28, 2023 Those kits do seem to come in different flavours and I think Ive seen ratios of 1.65, 1.9, 2.3 and 3 however I dont know if that means the diaphragm chambers are different sizes or its all done in the hydraulic cylinder or both. Certainly for the small chassis cars the first two ratios would be sufficient in most cases as otherwise I think youd risk skidding too easily... Link to comment Share on other sites More sharing options...
AlanT Posted November 10, 2023 Report Share Posted November 10, 2023 Agree re. Mintex pads. My Spit has been transformed by them. No servo but the brakes are now excellent. Wouldn't consider driving one with ordinary pads, the difference is so great. Link to comment Share on other sites More sharing options...
Pete Lewis Posted November 10, 2023 Report Share Posted November 10, 2023 most will find the ratio is changed by the diameter of the servo's hydraulic cylinder 1.9 is the general std for our cars and agree using mintex 1144 pads saves a lot of hassle you must bed them in firmly and some do set up some pad clatter but yo will gain superior braking over std pads and dont ask about green stuff Grrrrr !!! easy to clean the wheels but you wont stop the mintex are made to an historic material mix and the box will advise for track use only but if you dont read that you wont know nor will anyone else . they are a real must have to put on your wish list Pete Link to comment Share on other sites More sharing options...
Stratton Jimmer Posted November 10, 2023 Report Share Posted November 10, 2023 Definitely go for Mintex pads. Superior in every respect. Link to comment Share on other sites More sharing options...
johny Posted November 10, 2023 Report Share Posted November 10, 2023 Must say 1144 material on the packet or theyll be standard compound Mintex pads which are no where near as much of an improvement.... Link to comment Share on other sites More sharing options...
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