Any benefit to wrap heater-core hardline? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to   Members

Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

LinkBack Thread Tools Search this Thread
Old 12-15-2012, 02:48 PM   #1
Junior Member
Thread Starter
iTrader: (5)
Join Date: Mar 2012
Location: Gilbert, Az
Posts: 337
Total Cats: 26
Default Any benefit to wrap heater-core hardline?

In the process of slowly getting my turbo kit installed. I was noticing how the heater core hard-line under the exhaust manifold can't have more than a 1/2" clearance beneath the manifold itself. That can't be beneficial to have all that heat put back into the coolant, so I wondered if anyone has tried wrapping it?
I'm sure any benefit would be fairly minor, but if it's even 1-2 degrees cooler I'll take it for practically no effort.

Something like this:
Attached Thumbnails
Any benefit to wrap heater-core hardline?-imag0203_burst002-large-.jpg  
SJP0tato is offline   Reply With Quote
Old 12-15-2012, 03:30 PM   #2
Cpt. Slow
iTrader: (25)
curly's Avatar
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,107
Total Cats: 518

It could work to keep some heat away from the coolant. thermal dynamics always seem to work in the opposite way you'd expect.

The "real" solution is to flip your mixing manifold, weld over the hole, wrap your heater core line around by the top hat, and T it into your new, shorter, radiator hose.

Like so:

If you're too busy/lazy/poor to do something like that, especially because of the aluminum welding required, I'd rather see the rubber part of the hose behind the downpipe wrapped.
Attached Thumbnails
Any benefit to wrap heater-core hardline?-7c83bad1.jpg  
curly is offline   Reply With Quote
Old 12-15-2012, 06:34 PM   #3
Elite Member
iTrader: (3)
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,009
Total Cats: 583

Not really worth the hassle and maintenance. The main thing you are concerned about from the manifold/turbo is radiative heat transfer. In other words, the manifold and turbo "glow" which is why we wrap everything around it with shiny stuff. Fortunately, that tube is already kind of shiny (silver colored). There isn't much conductive heat transfer in that location because you have good air space between that tube and the manifold/turbo, so adding insulation like firesleeve really won't do much.

All in all, I'd focus heat control efforts elsewhere.
hornetball is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Transmission Heat Shield Thread patsmx5 General Miata Chat 46 06-06-2016 11:27 AM
Heat Transfer Question patsmx5 General Miata Chat 74 10-15-2015 12:18 AM
Cannot set Base Timing to 10* Elfering MEGAsquirt 50 10-05-2015 09:04 AM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Noob from Fort Worth, Texas checking in. Miatabro Meet and Greet 7 09-11-2015 01:13 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 08:10 PM.