Hi guys,
Just ordered the HKS downpipe for my FD, now since the object of the exercise is to remove the pre-cat and reduce under bonnet temps I am thinking I should do something to insulate the downpipe.
Heat wrap is the obvious answer - what types have people used that they would recommend?
Alternatively I believe you can get paint or ceramic coating that can do a similar job - has anyone gone that route, and what do they think?
Thanks all - I gather this is going to be a total PITA to fit, going to keep looking to see if anyone has done a guide with photo\'s - got the written walkthrough at FD3s already...
Cheers!
It\'s an arse to fit! You have to move part of the steering stuff (don\'t know what it\'s called... lol)
no you dont have to touch the steering. as well as removing everything above the down pipe, you undo the rear engine mounts and using a jack against the flat bit beside the fan relays and move the engine up and over about 40mm giving you enough room to get to the one last alkward bolt,two are just accessable from underneath and the last one from above,thats a vague discription there are guides on here or rx7 club that are more through though.hth
Wrapping on these engines is a tricky one as they get so hot you can see the glass popping!
Our solution is to get them coated...keeps the engine bay temps down to an absolute minimum!
i bought a second hand turbo kit form davehg on here, i asked him if it would be a good idea to heat wrap the downpipe, he said he had done it twice before and each time it caused the downpipe to crack and he had to have it welded up, then for ages he ran it with no heat wrap and its been fine
I guess it does depend on the quality of downpipe you run!
The type of welds, the material used etc etc. I can guarantee that our downpipes wont suffer the same fate....in the next month we will have 4 of our new manifolds and downpipes on cars...3 of which will be track/race cars, so I guess the proof will be in the pudding!
Quote from: AtomicRex;594404Wrapping on these engines is a tricky one as they get so hot you can see the glass popping!
Our solution is to get them coated...keeps the engine bay temps down to an absolute minimum!
So do you coat them in-house or send them out? I gather Satin Black is a good solution, but I can only find one place that seems to do it. What\'s it costing you?
I\'ve got triple coat inside and outside on the single turbo manifold, hot side and downpipe and it does help. Takes about 4 weeks for the coating to be done too.
You will need to remove a part of the steering to get it in. The stock on will come out without removing anything but the HKS won\'t go in otherwise because of its size.
Shaun
Quote from: Aubec;594437So do you coat them in-house or send them out? I gather Satin Black is a good solution, but I can only find one place that seems to do it. What\'s it costing you?
We dont do it in house...we get them sent out....but if you want to contact me, I am about to send some items over so can quote you.
Email me with your phone number.
actually atomic i might be interested in getting some bits coated- when are you sending the bits? will give you a call in a day or so about it.
Mail sent :)