Any recommendations on what type/make of exhaust wrap is best? How much is needed for a 4-2-1 manifold?
Also any advise on how to fit is very welcome.
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Posted 01 January 2014 - 8:57 PM
Posted 01 January 2014 - 9:07 PM
I would love to have it coated in like Zircotec, but if i remember correctly you are looking at least £500 for a manifold? This is what i have read in other threads.
A lot more than i want to pay.
You mention DT? who are DT?
Posted 01 January 2014 - 11:44 PM
Audi power --- mmmmmmm.
Posted 02 January 2014 - 7:15 AM
Posted 02 January 2014 - 9:54 AM
Sorry if this is a stupid question but can wrapping a manifold not cause issues further down the exhaust system as it will push the heat further down ?
If everything seems under control yr just not going fast enough !
Posted 02 January 2014 - 11:38 AM
I used the Eliseparts fabric wrap with stainless ties wraps and it lasted 6months.
It gets wet then dries out, then wet / dry / etc / etc...
What is the driver for wanting it ? If it's to protect (eg) the alternator, I'd get an alternator heatshield rather than wrap the exhaust.
Currently i do not have any form of heat shield
I am going to be fitting a 4-2-1 manifold and obviously i need something.
So my choices are buy some expensive Nimbus and spend hours trying to form a heat shield that will hide the manifold or get some good quality(probably same price as Nimbus) and wrap the manifold.
If it is wrapped well it should also look well?
Posted 02 January 2014 - 12:01 PM
Audi power --- mmmmmmm.
Posted 02 January 2014 - 1:24 PM
There are lots of competing information on whether wrapping/coating a manifold is a good idea or not. From what I understand there is no universally correct response.
On my car (Honda K20a) the manifold is between the engine and the boot. Rover K-series is between the engine and the firewall.
When giving it the beans on track the manifold can glow red. There are a number of components which are close to the pipes which don't fair well if exposed to too much heat. There's also the issue with the boot area getting very hot when touring which can heat up things you're carrying in the boot, as there is no real divider in the Exige.
So to keep the engine bay down to a reasonable temp I wrapped the pipes, fitted Nimbus protecting engine components, driveshafts, track rods etc and the boot floor.
Engine cover is the motorsport which sucks hot air out of the engine bay.
Opened the clam behind the reversing and fog lights to vent more hot air.
Drilled holes behind the numberplate to help with more air flow.
For me it was about removing excessive heat from the engine bay but that could mean more heat is going down the pipes and through the exhaust. This could mean the packing material gets destroyed quicker however the previous exhaust only lasted 5k miles before all the packing was gone. My current is re-packable so would only cost the packing material to sort out. It's lasted 8k miles and not empty yet.
Not noticed any ill effects.
I suspect any increase in exhaust gas temp on my car will be negligible and if my system copes fine then a k-series putting out much less heat will put less stress.
If you're worried about alternator getting fried then sorting a proper heat shield and then ducting cold air from the side pod onto it would have more of an effect than just wrapping the nearest (or all) pipes. BTW the other issue with the alternator on the Rover cars is they spin at the top of their design rating and therefore wear quicker, which is something you can't sort.
Posted 02 January 2014 - 2:52 PM
Posted 02 January 2014 - 5:44 PM
Posted 02 January 2014 - 8:11 PM
Edited by scatty, 02 January 2014 - 8:14 PM.