Latest best practice on cold air feeds / induction kits
#1
Latest best practice on cold air feeds / induction kits
I did a search but most of the relevant threads were years old.
What's the latest thinking on how to get cold air to induction kits on Classics?
Mine already had an HKS Super Flow kit fitted on it when I got it, but as far as I can tell, the other mods are minimal (2 section sports cat zorst and er... that's it), so on it's own, possibly not doing a lot. And I worry that now getting air from the engine bay, rather than the wing snorkus, it's warm air (haven't wrapped the headers, but intend to), rather than cold air.
So anyway, regardless of whether it's making any difference to airflow (i.e. size of turbo etc), getting dense cold air to it rather than warm air has to be preferable. Certainly it's loads quicker in winter.
Looking around, options appear to be:
Extra bonnet scoop + remove bonnet grill panel - looks a bit odd, but easy.
Remove rubber bonnet seal above headlight - very easy, but surely the seal is there for a reason?
Get creative with ducting from colder parts like the wing or fog lamps or grill - would you need to seal off the induction kit completely to get any benefit here?
As an aside, all the snorkus bits are still there in mine and the HKS filter mushroom butts right up against the tube coming from the snorkus - presumably some vain attempt to get a little more cold air to it - probably doing sod all, because the mushroom is much bigger than that tube... heheh.
Pros and cons of above solutions?
Any that I haven't mentioned?
Anyone got any pics of their imaginative attempts?
What's the latest thinking on how to get cold air to induction kits on Classics?
Mine already had an HKS Super Flow kit fitted on it when I got it, but as far as I can tell, the other mods are minimal (2 section sports cat zorst and er... that's it), so on it's own, possibly not doing a lot. And I worry that now getting air from the engine bay, rather than the wing snorkus, it's warm air (haven't wrapped the headers, but intend to), rather than cold air.
So anyway, regardless of whether it's making any difference to airflow (i.e. size of turbo etc), getting dense cold air to it rather than warm air has to be preferable. Certainly it's loads quicker in winter.
Looking around, options appear to be:
Extra bonnet scoop + remove bonnet grill panel - looks a bit odd, but easy.
Remove rubber bonnet seal above headlight - very easy, but surely the seal is there for a reason?
Get creative with ducting from colder parts like the wing or fog lamps or grill - would you need to seal off the induction kit completely to get any benefit here?
As an aside, all the snorkus bits are still there in mine and the HKS filter mushroom butts right up against the tube coming from the snorkus - presumably some vain attempt to get a little more cold air to it - probably doing sod all, because the mushroom is much bigger than that tube... heheh.
Pros and cons of above solutions?
Any that I haven't mentioned?
Anyone got any pics of their imaginative attempts?
#3
Looks good - can you get similar results with kits inside the bay via other means? (like side bonnet scoop?) Or is the pressure inside the bay just too high? Has anyone proved that having it in the wing gives the best results?
#4
with the mini air scoop, you have to be carefull about the filter getting wet.
if using the set up like i have got, you would need a map tweek.
the next best thing is to fit a heat shield
if using the set up like i have got, you would need a map tweek.
the next best thing is to fit a heat shield
#5
#7
Good point about the filter getting wet. Is that also a worry if you remove the seal on the bonnet above the headlight?
How do people with bonnet scoops get around this? Just positioning the filter carefully? (Or put a little umbrella over it? )
And when placing in the wing like the pic you had above, are there any dangers of puddle splash in there?
How do people with bonnet scoops get around this? Just positioning the filter carefully? (Or put a little umbrella over it? )
And when placing in the wing like the pic you had above, are there any dangers of puddle splash in there?
Last edited by charlesr; 15 March 2008 at 01:14 PM.
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#8
i wouldnt worry to much about the filter getting a few drops of water on it, by the time its been round the intercooler and ppes it will be vapourised by the time it hits your throttle body
#9
#10
I am in the process of making this.....
Have clad the inside of box with exhaust wrap and aluminium tape and also the intercooler pipe.
Will be using a cold air feed from either the headlamp(morrette style)or the lower foglamp cover....
Have clad the inside of box with exhaust wrap and aluminium tape and also the intercooler pipe.
Will be using a cold air feed from either the headlamp(morrette style)or the lower foglamp cover....
#12
#15
yes sorry for late reply, as banny said, i fitted it to my00.
the eayest thing to do, is cut out the rough shape out of cardbard, and trim it until you think you have got it right ar a guess.
they get cocktail sticks and soke into the top of the cardbord, and when you close your bonnet you will get the out like of the shap that you need to cut, so you will have a good fitting heat shield.
remove cardbard with cocktail sticks, and copy shape onto what evey your heat shield is going to be made from.
then it is just a case of priming out the hole for the induction kit, and anything else.
hope this helps
the eayest thing to do, is cut out the rough shape out of cardbard, and trim it until you think you have got it right ar a guess.
they get cocktail sticks and soke into the top of the cardbord, and when you close your bonnet you will get the out like of the shap that you need to cut, so you will have a good fitting heat shield.
remove cardbard with cocktail sticks, and copy shape onto what evey your heat shield is going to be made from.
then it is just a case of priming out the hole for the induction kit, and anything else.
hope this helps
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