High-mount Vs. Low-mount Turbos

[iMmOrTaL23]

Hi, guys!!!

I'm a newbie, so here goes my virgin post... What are the diffferences between high-mount and low-mount turbochargers, with respect to performance and heat-dissipation?! Thanx, mates!!

[Adriano]

Usually big turbos are high mounted as there isnt enough room to fit them low mount, almost all factory turbos are low mount, there is far less heat dissipation with a low mount, as there is generally less manifolding to radiate heat, and low mounts are cast manifolds from the factory which give off less heat. Generally IMO high mounting a standard turbo is a waste of time, all it does is create a lot more heat in the engine bay.

[sinistaGTR]

High also generally got externally wastegated turbos, but most externally wastegated turbos are big suckers aswell

[tridentt150v]

High mounts make the plod curious!!!

Low mounts look std.

[R31Nismoid]

I've seen a TA45 low mounted, its all to do with manifold design... although the twincam RB's leave a bit less room than thier SOHC brothers.

In saying that, i had a GT30 lowmounted, which means a GT35 would fit there aswell and other frames to boot

[dangerman4]

700hp gt3540 fits fine on a low mount setup!

i think the to4z is rated at 750hp, so big turbs fit nice and neat down low as well

[iMmOrTaL23]

Thanx for all the swift replies, mate

[sinistaGTR]

well most cops now days know what there looking for....also you can low mount those tubos but, when you have a gt3040 etc a 4"intake pipe combined with a z32 or q45afm, and pod filter, abd a boost controller in there they will look anyway. But i find high mount setups are much easier for cooler piping and for external wastegates........

[markimak]

ther are heaps of low mount options available. essp in GTRs depends on a car.

high mounts are usually for large turbos and low mounts tend to have the same exhast flange as the stock cast manifold.

like ur 25/30s on a GTR.