Thread: 2.4 t’s I remap - intercooler upgrade??

re: silicone hoses, both land rover mechanics I use highly recommend and suggest changing the standard hoses to silicone (the air hoses), they don't sell them, so have no vested interest.

Perhaps ask your mechanic what his concerns are ? I see some people using silicone hoses for the water hoses (which would have higher pressures), maybe he is thinking they are an issue, not the air hoses ?

I personally replaced the standard black rubber hoses with the blue silicone hoses, and am happy with that decision, from what I have read, the standard hoses can split over time, leaving you in 'limp home mode'.

Originally Posted by simonfish

Perhaps ask your mechanic what his concerns are ? I see some people using silicone hoses for the water hoses (which would have higher pressures), maybe he is thinking they are an issue, not the air hoses ?

Many vehicles run higher boost pressures than the coolant system pressures would ever get to.

Originally Posted by scarry

Many vehicles run higher boost pressures than the coolant system pressures would ever get to.

yes, good point, i guess a standard Defender Puma 2.2 with 90kw, I am not a mechanic, where would the higher pressures be, boost pressure or coolant pressure. I just struggle to understand why a mechanic would not support silicone air (boost pressure) hoses over rubber hoses, that are known to split.

*I only stock the silicone hoses, Terrafirma as they fit without any bull**** things like if its a RH drive you have to trim off X amount.
*I use and stock TRIDON hose clamps as they are made is Australia and you can tighten them up hard without the worn drive jumping.
*When fitting silicone hoses make sure they are clean and dry inside, make sure the pipe it's going on is also clean and dry.

*On a 2.2 the last 90 degree elbow that attaches to the inlet manifold I use another genuine one, say every 100K as the silicone ones I have seen never fit very well and seem to be a dog to fit (more than the genuine).

*I suspect some places dont like silicone hoses as they are prone to popping off if you lube the hose and use a cheap hose clamp.

P.S I think silicone hoses used for cooling are a bull**** waste of time

Originally Posted by DazzaTD5

P.S I think silicone hoses used for cooling are a bull**** waste of time

Hi Dazza,
Why do you think silicone hose are a waste of time for the cooling system?

Tony

Originally Posted by TonyC

Hi Dazza,
Why do you think silicone hose are a waste of time for the cooling system?

Tony

I'll take a stab at it whilst we wait...

Factory hoses will last 8-10+ years
Silicone more prone to slipping off
Some silicone isnt 100% compatible with Coolant

Originally Posted by Tombie

I'll take a stab at it whilst we wait...

Factory hoses will last 8-10+ years
Silicone more prone to slipping off
Some silicone isnt 100% compatible with Coolant

Could the same be said for inlet hoses, apart from point 3.

For what it's worth, I have rubber hoses, inlet and cooling, and have never felt a need to change, but I'm always keen to hear peoples reasons for and against.

Tony

Inlet hoses the silicone is more resilient, and correct ones with increased ply aren’t as prone to delaminating or splitting from heat and boost.

Coolant hoses are more consistent build to pressure and reduce slowly. Less stresses involved.