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#21
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2006 Dodge Ram SRT10 430 RWHP 460 RWTQ Stock 2003 BMW X5 Sport 3.0 on 22's |
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#22
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OK, I finally have a few interesting (although very tentative and by no means "official" or technically exact) numbers for the 4.6is with Dinan S3 package.
City MPG: 9.6 0-60mph: 5.3-5.6 sec. in "Sport" (automatic) mode The low gas mileage around town doesn't really surprise me, and I do NOT blame the S3 package...mechanically at least. I DO blame it inasmuch as it is virtually impossible for me to leave the transmission in "D" -- I drive almost entirely in manual now, and I tend to downshift to keep the RPMs in the 2500-3500 range because I just love the throaty sound and quick response at those levels (whereas "D" mode tends to upshift quickly to keep RPMs in the 1,000-2,000 range - little more than idling). I'll get a better idea of the actual impact of the S3 kit on gas mileage "all things being equal" when I do a highway trip where it's in 5th gear most of the time. As for the 0-60 times, take those with a grain of salt. I do NOT have access to a track or any fancy timing equipment. The 0-60 times are literally taken with me holding a stopwatch in my left hand and attempting to start the stopwatch when I hit the pedal and started to move, and stopping it when the speedometer crossed 60. IOW, I would NOT rely on them as exact times, but I do consider them reasonably close, based on about 8 different runs. I don't have 0-100 numbers because I haven't found a patch of road where I'm comfortable going from dead stop to 100mph (I live in the city)...yet. My guess is that with optimal shifting (manually), the 0-60 time really would be at or below 5.3 seconds (which was the fastest stopwatch time I got). That would put it on par with the Cayenne Turbo S (which I believe is 5.2 seconds), and substantially faster than a stock 4.6is (6.2 sec's) or 4.8is (5.9-6.0 sec's, depending on where you read it). I'd really love to get on a track where I could get some official times, including 0-100, quarter mile speed, etc...and just generally cut loose! If/when I get a chance to do that, I'll let y'all know. I'll also try to get some video one of these days. Meanwhile, I'll just have to enjoy "puttering" around town, rumbling with a smile on my face...and using way too much gas!
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Bruce 2003 "Dinan S3" X5 4.6is - Estoril Blue (450hp w/ supercharger) 2008 E60 M5 - Monaco Blue www.UnderwaterReflections.com www.seattleyates.com |
#23
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/ / / Michelle Administrator, Moderator, and Premier Member My Bimmer Garage 2018 F15 X5 35i M Sport (Sept 2020 to present) 2012 E70 X5 35d (Aug 2015 to Sept 2020) 2008 E70 X5 3.0si (Aug 2011 to Aug 2015) 2001 E53 X5 4.4i (May 2005 to May 2012) Support Xoutpost.com & become a Premier Member | Join the BMW CCA Rest In Peace SuperGreg <3 |
#24
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I had a supercharger on an Expedition. You will not notice the whine of the supercharger in a few weeks.
Congrats on the Dinan package!!!! Brembo brakes in your future???? Only $4,500!!!! |
#25
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wow...sound great, for a few hundred bucks there are devices that you can plug into the lighter which will give you some pretty accurate 0-60 and 1/4 times...good place to the tests would be on ra,ps to the highway on a Sunday morning when there is little traffic. Good Luck with the new toys.
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#26
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Congrats on getting blown
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2007 Jeep SRT-8 (going to be supercharged) 2007 Trailblazer SS 2003 X5 4.6is ESS supercharged 2004 Silverado SS supercharged 2005 Escalade supercharged 2003 Corvette ZO6 supercharged 1999 Mercedes S600 |
#27
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Be sure you run ONLY 93 octane from a reputable gas station, check the blower belt frequently and be sure the FMU, boost retard, knock sensor and ignition controls you may have are all working. If any one of these go bad, you'll be back in the shop for a new head gasket (and hopefully not for a new piston or rod). Invest in a GOOD air/fuel meter that you can monitor from inside the car to be sure you're not leaning out under heavy load/boost. Lean is mean, but with blowers lean = blown gaskets. I'm glad your happy with it and can afford to spend so much on a 120hp gain...at $141/hp, that about the most expensive mod I've read about in a long time. I'm not a fan of Dinan, and when I read things like this I know why...the blower and brackets run about $5-6K from Vortech. I didn't see an air-to-air intercooler listed in the package; but for $17K they should have installed one. My back ground is building fast Mustangs, down to 8 second street cars. I have been there down that path with Paxton, Vortech and ATI superchargers, laptop tuning, running up to 160lb/hour injectors, tuning with FAST, etc. None of this supercharging stuff is to be taken lightly. Never trust an "off-the-shelf" computer chip to re-tune the computer for a blower...it should be done via a laptop on a dyno with an 02 meter measuring air/fuel mixture. That is the only way you'll have a safe tune. |
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#29
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I'm not sure where I can even GET 93 octane around here, though (typical premium is 91-92). How important is that extra 1-2%? As for a good air/fuel meter, any specific suggestions on model, where I can buy, etc.? BTW, I realized I was spending extra with Dinan vs. getting all the separate parts and trying to put together a similar -- or better -- performance package myself. To me, who has NO mechanical expertise at ALL, the advantages of having 1. a package of mods tested so I know (or can reasonably expect) they'll work together to produce the expected result, and 2. installation by a BMW dealer with whom I have a good relationship, was worth that additional cost. I have great respect for those of you who do your own mods. And there is no question that YOU (and many others here) could have saved many thousands of $$ by doing stuff like this yourself. I simply choose to focus on making enough money with my business to be able to pay someone else (far more expert than me) to do it, and use my spare time underwater taking photos of little fishies, not under the hood rebuilding automobiles!
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Bruce 2003 "Dinan S3" X5 4.6is - Estoril Blue (450hp w/ supercharger) 2008 E60 M5 - Monaco Blue www.UnderwaterReflections.com www.seattleyates.com |
#30
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