Aluminium manifold spacers group buy
03 November 2003, 12:50 AM
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Ok folks I`m testing the water here.
I recently had a set of manifold spacers made up for my own
Scoob which have now been on the car for the last 1000 miles.
They are made of 10mm thick aluminium and were waterjetted to
shape so no buckling or warping etc. I can get more of these made up but in order to make it viable, and to bring the cost down to a reasonable level (£45 per pair) I need to have 10 sets made up.
Currently I`ve got 2 sets spoken for, so is anyone interested in a set?
Pete
I recently had a set of manifold spacers made up for my own
Scoob which have now been on the car for the last 1000 miles.
They are made of 10mm thick aluminium and were waterjetted to
shape so no buckling or warping etc. I can get more of these made up but in order to make it viable, and to bring the cost down to a reasonable level (£45 per pair) I need to have 10 sets made up.
Currently I`ve got 2 sets spoken for, so is anyone interested in a set?
Pete
03 November 2003, 11:34 AM
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Hi Pete,
I assume you are using these to space the manifold up to fit a bigger intake pipe under it. If you need to space the manifold up by that much, you could take advantage fo the opportunity and fit an insulative spacer, rather than an aluminium one... this would help prevent heatsoak from the block into the mainfold, and thus reduce the amount of heat the intake charge absorbs on the way in. Unfortunately, an aluminium spacer will not offer any useful isolation.
Moray
I assume you are using these to space the manifold up to fit a bigger intake pipe under it. If you need to space the manifold up by that much, you could take advantage fo the opportunity and fit an insulative spacer, rather than an aluminium one... this would help prevent heatsoak from the block into the mainfold, and thus reduce the amount of heat the intake charge absorbs on the way in. Unfortunately, an aluminium spacer will not offer any useful isolation.
Moray
04 November 2003, 06:26 PM
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Moray,
I`m sure I can have them made out of pretty much what ever material is spec`d, the only restriction i can think of is the thickness, whereby if it`s to thick milling would be the only real option if any decent surface finish is required.
The thing is though unless there`s a decent quantity required the setup time murders the cost
even on a CNC machine, as the programming has to be paid for irrespective of batch size.
Just for info I`ve been running with a set of these on my scoob for the last few months as a test and haven`t experienced any problems even when power mapping
The biggest benefit in these IMHO is in allowing for a larger inlet pipe and increasing the capacity of the air chamber above the valves True the alloy doesn`t insulate the manifold from the block (it does however allow 10mm more air to flow under it). IMHO the positives are a good gain over the standard setup.
Like I say though if there`s enough interest (Ideally 10 pairs)I`ll get prices for other materials / thicknesses
Pete
I`m sure I can have them made out of pretty much what ever material is spec`d, the only restriction i can think of is the thickness, whereby if it`s to thick milling would be the only real option if any decent surface finish is required.
The thing is though unless there`s a decent quantity required the setup time murders the cost
even on a CNC machine, as the programming has to be paid for irrespective of batch size.Just for info I`ve been running with a set of these on my scoob for the last few months as a test and haven`t experienced any problems even when power mapping
The biggest benefit in these IMHO is in allowing for a larger inlet pipe and increasing the capacity of the air chamber above the valves
True the alloy doesn`t insulate the manifold from the block (it does however allow 10mm more air to flow under it). IMHO the positives are a good gain over the standard setup.Like I say though if there`s enough interest (Ideally 10 pairs)I`ll get prices for other materials / thicknesses
Pete
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