ESS supercharger for 540i

[Tiger]

so I guess he has 15HP margin before hitting the maximum...

[NickT]

How much does this cost?

Retail is $5,995, but I should be able to knock some off the price for E34ers.

[NickT]

Unfortunately, no.

[andyman32]

the boost if using that....

Bill - if/when I get around to doing this, the ESS supercharger kit is supposed to increase output to 410hp, and that's assuming that the motor is still 100%. On a 10-year-old car with 95k miles on it, I've probably already lost a few. So I would still have a reasonable margin, 15-20hp.

It's not looking like it's going to happen so soon, though... the wife isn't too keen on turning this car into a track car right now. The fuel economy is already bad enough. Fuel economy with the SC... *shudder*. I might have to wait a while longer, untill I can afford a 2nd E34 as a DD (probably a 525), then start tuning the 540. I found a few on Autotrader that looked promising for < $6k.

[bahnstormer]

watch out though, u mentioned this is your daily driver
an acquaintance of mine did ess and they took well over
3 weeks to get his ecu back after he sent it

[NickT]

watch out though, u mentioned this is your daily driver
an acquaintance of mine did ess and they took well over
3 weeks to get his ecu back after he sent it

That's odd. With their current system it's usually a 48 hour 2-way overnight process.

[bahnstormer]

current meaning? u send it today?
he bought his approx 4-6 months ago

[kevm5]

Andy,

email me off line. I am also in the progress of getting a EES charger.

[NickT]

current meaning? u send it today?
he bought his approx 4-6 months ago

Well, what happens is ESS sends you a special FedEx package with special instructions, which you send back overnight and then turn around time should be 24 hours with again express delivery. Last customer I sold a system to that is how it works. But obviously depending on how busy they are or if someone is lagging it could change. However, due to heightened security measures international shipping times have been inconsistent lately.

[stevie s]

Sorry to butt in guys, I run a 530i, with 740 engine and trans (5hp30), 535 diff (3.6) and an ess supercharger running 3.6" pulley (smaller than the 410bhp kit) my cars curently making 440 bhp and the 5hp30 box has no trouble at all.. I would confidently run more power through it

only thing I find is that the lag on gearchanges is nasty! though I suspect this is caused by the dme retarding the engine at shift point.. (unless anyone here knows different!)