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» Welcome to Pocket Bike Racing

Exhaust wrap, good or bad??? on Blata replica air cooled

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Old 10-06-2005, 12:03 PM
jj jj is offline
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Exhaust wrap, good or bad??? on Blata replica air cooled

Hi all,
was going to fit some exhaust wrap on my b**t* replica "air cooled" to help keep the heat down.
Do you think this will help cool motor, or would it make it hotter?

1. Not sure if I should just wrap it where it passes over the head to keep excess heat away from the head,
or
2. If I should wrap all expansion chamber? or do you think this may trap to much heat in the exhaust and then make it hotter?

thanks,
jj
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Old 10-06-2005, 12:14 PM
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Hi JJ, i'd get the fisrt pipe heta coated from HPC from Brissy, it'll cost under $50 and will be better than rapping it. It worked very well for keeping heat down on my turbo manifold.
Jake
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Old 10-06-2005, 12:20 PM
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Hi Jake,
so you reckon just get the header part coated, or the whole pipe, except stinger on end?
thanks,
jj
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Old 10-06-2005, 12:25 PM
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i noticed some dude just used that silver reflective tape on the bottom of the plastic parts to stop the heat that way.
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Old 10-06-2005, 02:56 PM
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thanks Ado, but I think I will just stick to the wrap...
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Old 10-06-2005, 03:34 PM
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If you are worried about heat soak to the motor from the exhaust I think either method will work ok, but probably heat wrapping the pipe is best. I think this is generally done to improve performance and reduce under bonnet temperatures (in cars) as by wrapping the pipes, so the theory goes, you keep the heat in the exhaust gas better and it therefore flows faster. I don't know if this is actually true or just a ploy to sell heat wrap, that's just what I've read.
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Old 10-06-2005, 08:36 PM
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jj for the price and where the exhaust comes close to fairings, id only do the header pipe. if your budget allows do the whole lot. HPC also do the inside of the pipe.
Jake
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Old 10-06-2005, 09:22 PM
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Hi jake,
do you have the phone number for HPC, I can't find it anywhere?

Thanks mate,
jj
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Old 10-06-2005, 09:57 PM
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HPC High Performance Coatings
Lot 45 Strathwyn St Brendale 4500 (07) 3881 0885
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Old 10-06-2005, 11:43 PM
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Thanks Jake,
appreciate your help.


The carby you machined for me, and the flywheel you also machined, work really well too...

thanks again,
jj
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