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Old 12-16-2010, 07:51 PM
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J.Belknap J.Belknap is offline
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Quote:
Originally Posted by bcredliner View Post
I have a 2002 X5 4.6. Early on I had all Dinan mods installed other than supercharger taking it to 369HP. Just rolled over 90,000 miles.

I am debating whether to keep the X5 until next fall. If I do so I want to add a supercharger. Question is---do you think it would be worth the expense and increased risk over what I already have?

Is there anywhere to find 0-60 and quarter mile performance of a supercharged 4.6?

Thanks in advance for your thoughts.

BC
Hi BC, SeattleYates logged a gtech 0-60 time of 5.2s, details can be found here: http://www.xoutpost.com/bmw-sav-foru...-s3-wow-5.html

There aren't any recorded 1/4 mile times that I've heard of, so I'm going to bench race for a minute. Bear with me... feel free to correct if I'm off...

~4824 curb weight (spare tire, tool kit, everything)
~149.15lbs of curb weight is fuel (24.56 gallons of fuel @ ~6.073lbs/gal)
(Let's say we race when the reserve capacity is full, in other words, when the gas light comes on: ~2.5gal@~6.073lbs/gal is ~15.18lbs of fuel)
Subtract the difference in fuel weight (-~133.97lbs) and we're at ~4690.03lbs
Driver weight for this instance is ~190lbs
Race weight is ~4880.03lbs
(Peak) Power is ~451bhp

I would bet a few dollars that the time would be very near 13.5-13.6 @ 106-108 mph Maybe a tenth or two faster, given the Si-Trim impeller blade, more area under the power curve. That coupled with the performancegearing 4.44 front and rear differential gearsets would have us knocking on the 12-second door.

As far as expense justification, that depends on finances, which are none of my business.

Quote:
Originally Posted by disturbedk24 View Post
#5 01blacks4 signature 3 is now me, located in oregon, next time i look threw the dealer records i will check the install date

its estoril blue
disturbedk24, just wanted to clarify, is 01blacks4 your old username, or did you buy the Dinan X5-S3 from him/her? Good to hear that another found this thread!
__________________
Previously owned: '03 4.6iS Dinan Supercharged

Last edited by J.Belknap; 12-16-2010 at 07:56 PM.
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