performance upgrade

If you can get a rotrex, then that should be good.
I had a HKS Rotrex on my 350z.

But you won't get one, unless you've got very deep pockets.
It'll certainly be cheaper to upgrade to a 3.0 if you're looking at having to pay for a charger to be custom built :P
 
fluxco said:
srhutch said:
IIRC there is no throttle body on the N52 engines which means a SC is not viable.

come on now, do you even know what the throttle body does?

of course the 2.5 has a throttle body, how else is the air going into the engine?

He probably does know! I don't really so I had to steal this from Bimmerfest. There is a Valvetronic Variable Valve Lift - patented and unique to the N52. This controls the valve lift to such an extent that the throttle body has been replaced - there is something to help with cold starts etc but under normal conditions it just opens... not sure if that would affect supercharging but could explain why people don't seem to list them for the N52?

But I agree fluxco, and think I said in an earlier post... nothing beats speaking to the people that make these things :thumbsup:

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Source - Bimmerfest - http://www.bimmerfest.com/forums/showthread.php?p=2116725
(if this is considered promoting other sites can someone let me know or if you're a moderator remove)
 
i didnt know about this valvetronic valve lift system and i shouldnt have posted my comments


please accept my apology for being an ignoramus
 
fluxco said:
please accept my apology for being an ignoramus

Yep, I've done that! A quarter of my posts must be retractions! Have to say it was news to me, but srhutch is normally on the money so I had a look. Sounds quite an interesting concept... I think Honda's V-Tech has been supercharged, but I'm guessing that retains tradition throttle bodies?

OP - you might want to come at this differntly, given the revelation about the N52 VVVL setup... with it being a step-on from V-Tech, maybe try speaking to companies that supercharge S2000s? I think you're going to need to do your own leg work on this one!
 
I paid £3,600 for the HKS kit, which I consider borderline expensive.
However, considering whats in the kit, and the BIG tuning name behind it, it seemed to justify it's price a little.

However, spending £4k with a company, without the safetynet of knowing what you will get for your money - that's expensive imo.

At the end of the day, they may just turn round and give you 30bhp for a £3k investment... which no-one can justify as being worthwhile :)

(there is, however, always N2O.. but I don't recommend it)
 
Can someone tell me the prices quoted on ESS Tuning USD or Euro
Forget this question...I should have opened my eyes.
The stage one kit for 3.0L at $5650.00 USD dollars with free post to Ozzy is awfully tempting.
 
the thing is that i would have to send the car to your country in order for the guys to work on it. think ill procastinate on this one and finish my cosmetic modifications and qhen i have the car looking like a beast then ill star thinking about getting it to act like a beast . altough if any of you get some info i would be more than glad to know
 
N52, no throttle body and you CAN turbocharge--see 335i and the new Z4s.

OK, did a little more snooping and N54 in 335is etc. don't use the Valvetronic of the N52, so........... :? :oops:
 
can i get somebody to make a custom supercharger? pros and cons? anybody has used a chip on a 2.5si with good results? which one?
 
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