Offroad-Express

Has anyone had any experience with wrapping the stupid intake pipe on the Surf 1kzte that goes right over the top of the engine to the intake manifold with heat reflective insulation high-temp tape? (For those that can't afford the intercooler install or don't want to do it).

I've read on some other forums of people doing this on petrol cars/trucks with intake pipes that aren't anywhere near as close as 1kz's with quite major reductions in intake temp, like 10-15'C. Surely on a diesel engine setup like the 1kz it would be even more helpful and a cheap and easy mod? Sure the hp or economy increase might not be able to be felt but the engine wouldn't say no to breathing some cooler air would it?

Just a thought, what do you think?

It wouldn't hurt..

sounds like one of those things that would take alot of effort for not alot of gain.

can see why it would work, but for only a couple of degrees colder dont think it would help much.

would look cool if done right though.

Would be a piece of piss to do though, and I'm sure it'd reduce temp's going into the engine by at least 20'C, surely there would be worth while gains there? And would only cost $10-15. Not talking about heat wrap to keep heat in, talking about heat reflector tape to keep heat out.

Sounds like a good idea to me mate. Would be worth doing some testing though, before installing the wrap and after? Only thing I can think of is the air temp in the pipe may be hotter after the turbo and could cause it to insulate the heat in? Worth a go though!

let us know how that goes.
Thought about doing something like that aswell on my td42t.
would help with the heat soak.

it won't do anything performance wise. the large flow through the tubes and the minimal surface area means the air won't heat up. however in stop go situations it would be good to stop heat soak.
use exhaust wrap.

Devils advocate here and not trying to stirr sh*t but if the air wouldn't cool in the pipe then it should heat either? Just a thought.

i've insulated my air box and intake pipe to the air box in the safari. My thinking is if the external side of the box is insulated from the hot air moving around the engine then the cold air coming from outside the engine bay will keep the air box cool therefore keeping the air cooler.

Before doing it after a good drive ,if you put your hand in the air box it would be very hot to the touch.(as in if you keep your hand there it will burn it). Now after doing the same drive it is only slightly warm.

bob_or_jim wrote:Devils advocate here and not trying to stirr sh*t but if the air wouldn't cool in the pipe then it should heat either? Just a thought.

The air moving threw it shouldnt be getting much (if any) change in temp, not compared to how much heat is given by the turbo.

of coarse there will always be a little bit of heatsoak somewhere, if you want to cool the air down splash out on an intercooler. only way youll notice any changes worth mentioning.

Dirtydog wrote:

bob_or_jim wrote:Devils advocate here and not trying to stirr sh*t but if the air wouldn't cool in the pipe then it should heat either? Just a thought.

The air moving threw it shouldnt be getting much (if any) change in temp, not compared to how much heat is given by the turbo.

of coarse there will always be a little bit of heatsoak somewhere, if you want to cool the air down splash out on an intercooler. only way youll notice any changes worth mentioning.

Agreed, just thought Ide provoke some head spinning hehe. The inline water to air coolers look like they could be a low profile option. There about $150 from Aliexpress

bob_or_jim wrote: Would be worth doing some testing though, before installing the wrap and after? Only thing I can think of is the air temp in the pipe may be hotter after the turbo and could cause it to insulate the heat in?

My thoughts also. On a petrol engine (that spends lots of time off boost) it probably beneficial. But a diesel that is so often boosting (boost heating the air) it may end up sealing the heat into the engine.
Try use a multimeter with temp sensor (at $40, this would do http://www.trademe.co.nz/business-farmi ... 314400.htm)
Sensor probe is tiny, and will slip under hose clamp into airstream. Just make sure its not on pipe edge, or results will be flawed.
Never tested my diesel, but I was surprised on a petrol how quick temps rose above 150degC!!

get a subaru water to air one, cheap as, and if your lucky you can get all the parts that make it work.

only thing i didnt get with mine was the hoses, but i needed different lengths anyway.

i got the whole setup, intercooler, pump and radiator for about 90 bucks.

no, if you wrap the intercooler in insulation you would definitly notice a difference.

I have a complete subaru water-air intercooler setup with a spare rad, I was going to turbo my new truck but it goes fine so don't need to. Open to offers.

What water to air intercooler are you talking about? Do you have a link to info or pics?

$90 sounds sweeeet but how so cheap???

bronx89 wrote:What water to air intercooler are you talking about? Do you have a link to info or pics?

$90 sounds sweeeet but how so cheap???

http://www.aliexpress.com/item/universal-water-to-air-intercooler/717766627.html

Here is just 1 that I found very quickly. It doesnt show you the cores in the inside though (would be worth seeing before buying) there are heaps on this site it just takes time to find them. Some suppliers have free shipping too.

I also have a Subaru WTA intercooler but am missing the pump.

bronx89 wrote:What water to air intercooler are you talking about? Do you have a link to info or pics?

$90 sounds sweeeet but how so cheap???

This is what your after:

http://www.trademe.co.nz/motors/car-par ... 847342.htm

Cheers for the link and pic. Not really wanting to do IC at the mo.

Contemplating doing the heat reflecting tape. Have read up on tests done on petrol engines with awesome results. Just wondering what you guys thought it'd be like on diesel engines.

And does heat reflective/insulation tape let heat escape?

bronx89 wrote:Cheers for the link and pic. Not really wanting to do IC at the mo.

Contemplating doing the heat reflecting tape. Have read up on tests done on petrol engines with awesome results. Just wondering what you guys thought it'd be like on diesel engines.

And does heat reflective/insulation tape let heat escape?

If its keeping it out, its also keeping it in.

I'm not sure about that.. I've just done some reading and the reflective tape keeps hotter air outside the surface from heating up the air inside the surface. It's not designed to keep the heat in, like heat wrap on extractors for example. It's pretty much the shiny gold or silver surface that reflects the heat and won't let the heat absorb. To trap hot air in wouldn't it have to have the same sort of material and makeup as the heat wrap? And the tape and wrap are a lot different.

bronx89 wrote:I'm not sure about that.. I've just done some reading and the reflective tape keeps hotter air outside the surface from heating up the air inside the surface. It's not designed to keep the heat in, like heat wrap on extractors for example. It's pretty much the shiny gold or silver surface that reflects the heat and won't let the heat absorb. To trap hot air in wouldn't it have to have the same sort of material and makeup as the heat wrap? And the tape and wrap are a lot different.

Sorry i was thinking about the insulation side of things.

the reflective tape would help, they use it in solar water heaters to shine the heat onto the pipe so it heats up faster, so cant see why it would reflect the heat away from the surface.

Just make sure you get heat resistant stuff or it will just peel off all the time.