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#21
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
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#22
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Do you think I am missing something?
The only concern I have is that the change will cause a dash problem light that I can't get rid of or for some reason something like ABS or DSC becomes inactive. I talked to a great BMW tech that I have known for years before I purchased the diffs. He was not sure but felt it would be plug and play. Then came the disclaimer that it was not something he had ever done.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas Last edited by bcredliner; 10-23-2019 at 01:44 PM. |
#23
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Yes, I’ve been here since 01/2013. That is one nice truck you have there. I hope all goes well with swap. I personally haven’t seen it done here, unless I missed it. We talked about doing it on the manuals, swapping out the 4.10 to drop rpm. But, after I put thought to the idea, I decided playing with the drive line on a E53 was not for me. But, like you said there are risks. I meant no disrespect, only concern for a awesome E53 build.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#24
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It's a 5% boost. I'm sure the components can handle 5% extra but with the age, the weakest link could be found if something was close to braking. I'm behind the swap but the caveat is the 5% boost in rpm at freeway speeds might suck, however I think that might mean just bumps up to what mine already is if the transmission final ratio is the same.
Also: you will have a "spare" set of diff should you break the 4:10s Sent from my iPhone using Tapatalk Pro
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#25
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I think the transmission/torque convertor is the weakest link. It should have failed by now. I have a couple of options to beef up the transmission that will also improve 0-60 time if it fails.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#26
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Question about change dif ratios.
That was my major concern, the trans.
At probably over 480hp by my math when you squeeze, plus the 5% that Andrew suggests, is a lot. On the high side, maybe I’m pushing 420hp on a a good day, and I’ll tell you I can feel it! Maybe it’s why they deleted the awd on the X5LM project. I am sure if they wanted a awd build they could have.
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 Last edited by Happy; 10-23-2019 at 03:03 PM. |
#27
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For your math, stock was 340HP. Dinan stuff took it to 369 then the add on of meth, 150 shot of nitrous and electric cutouts. For 0-60, torque and torque curve are critical. Superchargers and nitrous do wonders for acceleration and the experience. I prefer the AWD, lots more contact patch to put power to the ground.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas |
#28
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You’ve gotta be over 500hp with NOS (squeeze) right? My math was using a 125 shot. That’s why I say on a good day for my setup, because I can feel the fluctuations. But when conditions are just right, she’ll lay you back in the seat! I generally use 30hp for the meth injection as an average, but I’m sure I’m higher. I start squeezing at 3200 rpm progressively up to 80% of my pump, which is 128 psi. I can blow through a gallon of juice. Stock for me is 230 hp, 140 hp of boost, probably closer to 50 hp for the meth. But I agree with you, there are fluctuations. That pretty cool though, I’ve never seen anyone with double squeeze (NOS, METH).
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
#29
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Especially when the surface is less than perfect traction. My stock 3.0 blew away a pickup with 454 from a red light just because it rained.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#30
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Question about change dif ratios.
The 5% was pertaining to Andrew’s diff math. 500 hp with those diff’s is definitely going to be a ride to remember in a E53.
I would love to hear that truck with the pipes open!
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02 BMW 5 Speed Supercharged Ethanol Burnin Meth Injected E53 |
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