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difference between low mount and normal mount turbo's ??

Started by obsesv vbmenu_register("postmenu_1874716", true); · 28 June 2008 · 8 replies

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i have a magazine with a 9sec R33 skyline with twin low-mount turbos. by the sounds of it they arent visible from looking down into the engine bay, i think i remember reading that theyre mounted under the exhaust manifold or something. but ive been wondering the difference between low mounted and normal, if anybody can help it would be much appreciated!! not sure whether its just in NSW, but the new laws for p platers mean that you cant have a turbo or supercharger, so i was thinking of getting a low mount turbo when i get my p's, as long as they arent visible! and hoping not to get defected lol.
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GTR's factory posistion for their turbos is low down, and hang under the manifold. All the of the intercooler piping comes up out of them and cover's them over. If you have a look at any standard GTR, you'll shouldn't be able to see the turbos. There are a range of turbo upgrades that bolt on to the factory manifolds, and are known as low mount turbos. Most higher HP GTR's go for a high mount set up, where different manifolds are used, and the turbo/s (single or twin) sit on top. It allows for better manifold flow, and easier intake and intercooler piping, all resulting in higher horsepower. As for the VL, a low mount turbo is a factory mount turbo, and will be no less obvious than a usual RB30ET, so unless the nice policeman is a complete mug, you won't get away with it. If you're on your P's, change your diff gearing, get a set of extractors, and be happy with the short amount of time that you get to learn how to drive before stepping into a high horsepower car.
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^^^^ well said!
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ok fair enough. yeah i wasnt thinking of immediately buying a turbo kit. i was thinking maybe once ive got a few years experice, like when im on my 2nd year of green P's or something. but thanks alot for the explanation!
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Quote: Originally Posted by obsesv ok fair enough. yeah i wasnt thinking of immediately buying a turbo kit. i was thinking maybe once ive got a few years experice, like when im on my 2nd year of green P's or something. but thanks alot for the explanation! No worries man, hope that cleared up a bit for you. It'd suck to put a lot of work in only to lose your licence, or have your car impounded. Drive it as is, save your cash, and when you get your full licence, throw a bit of cash at it then. Good luck with it!
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Quote: Originally Posted by RB26TTVL No worries man, hope that cleared up a bit for you. It'd suck to put a lot of work in only to lose your licence, or have your car impounded. Drive it as is, save your cash, and when you get your full licence, throw a bit of cash at it then. Good luck with it! Yeah that would suck! what are your recommendations as to the diff gearing by the way!?
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4.11, easy.
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ok, thanks alot for all your help man!
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Definitely. I had a VL RB30E auto that I converted to a 5speed. Awesome car that was as tough as nails. I made the mistake of trading it in for a 2yr old VS 5ltr 5speed that felt slower through first than the rb30 and it broke everything in the drive line unlike the VL and cost me 6k in repairs within 9months Some original photos have not been recovered yet.
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