325... which path to take

[e30_Turbo]

ah yeh, im still in 2ltr 4 pot mode!
whats a Holset?

One of these

[will_c]

is that a cummins Truck engine turbo or somthing lol!

whats the lag like on that? how much are we talking for one of those?

By the way whats the difference between a 325i and a 325i sport?

[maxfield]

It's from a train

[Jon_Bmw]

If it is mainly for track, you do want something that is "laggy" because in reality on a track it won't be laggy as you'll be between 4000-6000rpm all day long. We have a 200sx that is only for a track, nothing happens till 4k but then it goes quite mental which is ideal on a track, less ideal on a slippery road that you might use everyday.

Holset hx40 is where it is at. 50 if you are really keen

[Turbo-Brown]

Shouldn't really make any difference how big the engine is, 400bhp on a petrol engine requires X amount of air/ unit time and therefore Y amount of fuel/unit time, regardless of the number of cylinders or engine capacity.

Remember power is just a rate at which work is being done.

[will_c]

i dunno why i said its mainly gonna be used for track! it will regularly go on the track but it will be on the road equaly as much.
If the boost is at a good level by 3k revs i ll be happy

[WillG]

http://www.holsetaftermarket.com/afterm ... lsetturbo=

look at H1C or HX35 on there and email holset of ones your intreted in to get specs, you looking for one with 14-16 cm turbine housing and 50-55 comp inducer