I love that you’re not afraid of experimenting, and doing what you want to do rather than what others think you should do. All the British phrases along the way are just icing on the cake!
The exhaust wrap works great but stinks when you run the engine and it drys out! I done a few motorcycles with it. It works great! I am planning on doing the same to my Spitfire!
Same here, wrapped lots of bikes but never a car. It does stink like mad for awhile but eventually burns away. Sure keep’s temperature down though. Sitting on a bike with wrapped pipes proves that!
Leave the heat wrap on, even if the intake is touching it in a few spots! If you grind more intake material off, slide a thin piece of metal shielding over top of the wrap, not touching the intake. That's the best you can do.
It might be interesting to know that on a traditional Mini 998cc the inlet and exhaust manifolds were cast together as a single lump. Obviously they did not consider inlet heat to be a problem. Probably heating of the carb itself could be more of an issue which is why the spacer blocks were usually plastic
don't worry about the manfold getting warm. on single manifolds on spitires and heralds triumph found that the manifolds would get wet inside. fuel droplets from SU and stromberg carbs are larger than in carbs such as webber. the wetting issue wasn't the case with twin carb manifolds only singe ones. so triumph put the coolant tube in as it helped warm the manifold up earlier during cold start. this prevented inlet runner wetting and benefited in a better mixture for the engine. getting so hot you can't touch it, is not good imo.... but warm to touch is just right. in north america we have a much worse pathetic single inlet manifold and they get warm to touch as well. the carb should be cold and some use bakelite spacers to isolate heat. but you mention your carburetor is cold - so good to go. on mine i have a new rebuilt HS6, modified for non angled mounting. but i have never run it on my spitfire. you can after a bit more driving check sparkplugs for colour. i found a good tuning tool is something called colortune. which of course i lost mine.
I love that you’re not afraid of experimenting, and doing what you want to do rather than what others think you should do. All the British phrases along the way are just icing on the cake!
The exhaust wrap works great but stinks when you run the engine and it drys out! I done a few motorcycles with it. It works great! I am planning on doing the same to my Spitfire!
Same here, wrapped lots of bikes but never a car. It does stink like mad for awhile but eventually burns away. Sure keep’s temperature down though. Sitting on a bike with wrapped pipes proves that!
Leave the heat wrap on, even if the intake is touching it in a few spots! If you grind more intake material off, slide a thin piece of metal shielding over top of the wrap, not touching the intake. That's the best you can do.
It might be interesting to know that on a traditional Mini 998cc the inlet and exhaust manifolds were cast together as a single lump. Obviously they did not consider inlet heat to be a problem. Probably heating of the carb itself could be more of an issue which is why the spacer blocks were usually plastic
good to know, thanks
don't worry about the manfold getting warm. on single manifolds on spitires and heralds triumph found that the manifolds would get wet inside. fuel droplets from SU and stromberg carbs are larger than in carbs such as webber. the wetting issue wasn't the case with twin carb manifolds only singe ones. so triumph put the coolant tube in as it helped warm the manifold up earlier during cold start. this prevented inlet runner wetting and benefited in a better mixture for the engine. getting so hot you can't touch it, is not good imo.... but warm to touch is just right. in north america we have a much worse pathetic single inlet manifold and they get warm to touch as well. the carb should be cold and some use bakelite spacers to isolate heat. but you mention your carburetor is cold - so good to go. on mine i have a new rebuilt HS6, modified for non angled mounting. but i have never run it on my spitfire. you can after a bit more driving check sparkplugs for colour. i found a good tuning tool is something called colortune. which of course i lost mine.
Thanks as always for the info Nick! I've got a colourtune, that's the next job.