turbo's????????

[treeseries]

hi every1 im looking at gettin a turbo or in fact 2. for my e32 750 lump but i dont know anythin about turbos. i know a few people have truck turbos and a few dont. i dont understand t3's or t75's? whats the differance or whats best for big power outputs and torque. should i go for lorry turbo or car? any info would be great.

[Gunni]

your about million miles from knowing the answer.
And nobody will be able to answer you in a simple thread.

You need to read ALOT on turbocharging before you even think about anything more.

In honesty. 2 x HX30´s would rock on a M70.

[Morat]

Your best bet is to go to an expert in the field and throw money at him. On the other hand, if you're interested in learning to do it all for yourself you're going to need to do the reading that Gunni talks about. You'll need to learn about Engine Management systems as well.

[treeseries]

Holset HX35


Designed primarily for 6 cylinder engines of 5.0 to 6.5 litre capacity, the Holset HX35 turbocharger has higher flow aerodynamics capable of providing up to 0.46 kg/s at 3.0:1 pressure ratio.

taken from holset website surely 2 of these would be ideal with mine bein a v12

[fuzzy]

wouldnt a twin turbo set up using 2 different size turbos be more usable? a smaller turbo to get you going from low revs before the bigger turbo kicks in to take you to the top end.
in my experience a quicker spinning low down acceleration based turbo is more usable everyday than one that doesnt start spinning until 3000rpm.

[maxfield]

Yes but fuzzy we're talking to different banks here.

It would be good on a Inline engine. But I cant see it being on a V12.

[treeseries]

hi im not to sure about turbos but i'll take on the smaller turbo idea the only thing is what i know of turbos they go into the airflow between the airfilter and inlet manifold i belive, wouldnt it be easier to just run two turbos the same size for each bank of cylinders bearin in mind that a twin turbo 5ltr v12 wont be my daily runner.

[treeseries]

p.s thats twice i've agreed with maxfield i should ge that seen too

[maxfield]

p.s thats twice i've agreed with maxfield i should ge that seen too

[fuzzy]

Yes but fuzzy we're talking to different banks here.

It would be good on a Inline engine. But I cant see it being on a V12.

i understand your point max and your right. i hadnt thought my reply through properly
me and my 4 pot tracked mind

[maxfield]

Not always a bad thing

[e30_Turbo]

http://streettuners.vidiac.com/video/4b ... c1f83c.htm
specs.
M70B50 engine
Getrag '850 only' 226 6spd gearbox
E30 M3 axles
Autronic SM4 engine management
Custom intake manifold with single throttle body
SST exhaust manifolds
Custom turbos
Double 3" exhaust
Custom IC
42mm Wastegates
Alu radiator, expansion tank
Twin fuel pumps
444cc injectors
6 cyl direct ignition (yes, the other half with single coil icon smile
Race fuel cell


How much money spent?

[Gunni]

Not that much as Saku of Finland built that for his friend so labour is not a issue.

but trans is 3k euros what ever way you look at it

[fowler]

that looks the absolute nuts

[Jhonno]

bet that goes well..

[buster]

Nice !
I've just has an idea
Is the m70 the normal 750 motor ? If so ,buy one as they are cheap as chips.Then fit turbo and gubbins as you would an m20 2.5 but times 2 = powerfull engine

[oldroydsr4]

Get

Maximium boost By Corky Bell and read it.

It will benefit you hugely and talk you through selecting the correct turbo etc

[treeseries]

who owns this car? where can i find more info on it?

[e30_Turbo]

Not that much as Saku of Finland built that for his friend so labour is not a issue.

but trans is 3k euros what ever way you look at it