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BMW 3-Series (E90 E92) Forum
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Anybody Suffering from T.I.C.?
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11-27-2007, 01:58 PM | #23 |
Campervan man
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Sorry fatbloke, but I do drive an estate - so, as has been pointed out in other threads, I could get a coffin in the back - Carl Ill see if you fit?
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11-27-2007, 02:03 PM | #24 | |
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most 335i are 310-315 at the flywheel. Your calculations are 100% Right. This does not mean yours and nicks cars are car really making 350bhp at the flywheel tho. The losses are 15% approx. DMS told me over the phone that the losses ''are 50bhp'' , not sure how they measure that but that would also be closer to what im saying.. They quote 334bhp which is approx 284bhp at the wheels.. 14 more than Peppernicks but Nick calculated his with 23% loss to give him a higher flywheel figure! Carlos
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11-27-2007, 02:04 PM | #25 |
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Im only small mate. so would fit quite easily
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11-27-2007, 02:12 PM | #26 | |
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Oh and just beacuse its what you' are saying' doesnt mean its right - remember cars are my business!!! Someone help?!?!
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11-27-2007, 02:13 PM | #27 | |
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5 BHP in each leg 20 BHP in the torso 250 BHP in the head You could pop his head up front with you OliH! |
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11-27-2007, 02:17 PM | #28 | |
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Your calculations are right, so are mine.. but both with different losses accounted for.. I dont believe an Auto has losses of 20 odd %. Ask in the USA forum i think they say its 11-12% for a Manwel, and 15-16% for an Auto Mo Fo. Carlos
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11-27-2007, 02:26 PM | #29 | |
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Or am I being a muppet,it would not be the first time or last! |
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11-27-2007, 02:28 PM | #30 | |
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there might be slight differences, a percent or so but not majorly different.
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11-27-2007, 02:31 PM | #31 | |
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Where do you get your drivetrain losses from? I think you'll find approx 12- 15% for a manual and 20- 25% for an auto - Google it, there loads of examples of this I think Ill agree to disagree, you are a nightmare
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11-27-2007, 02:32 PM | #32 |
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You love me really.
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11-27-2007, 02:34 PM | #33 | |
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Right thats it from me
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11-27-2007, 02:35 PM | #34 |
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11-27-2007, 02:37 PM | #35 | |
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I believe the losses are 15%. 15% of 270bhp is 40.5bhp that + 270bhp = 310.5bhp
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11-27-2007, 02:38 PM | #36 |
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Yeah you do....
unless you were drunk when you text me last night
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11-27-2007, 02:49 PM | #37 | |
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286 is the quoted factory output!!!!!! - At the flywheel, why would we dis-believe this Someone help me on this - Who has had RR experience?? Autogearbox's have more than 15% losses - Now go and do some research perhaps IF you ever get a remap, suddenly you will be arguing that a 335D remapped makes 390BHP and does 1/4 mile in 9 secs?
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11-27-2007, 03:00 PM | #38 | |
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11-27-2007, 04:11 PM | #39 |
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It's quite amazing really.
One simple question asn six or seven replies later it's armageddon. Who needs telly?
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11-28-2007, 05:12 AM | #40 | |
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Welcome to the ''E90.post.com Entertainment Area''
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11-28-2007, 05:56 AM | #41 |
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...sorry to poke my nose in
BMW have quoted 12,7% loss on the Manual, 15% loss on the auto. If it was more that 15% they wouldn't be able to keep up with the Manuals, and often in a race they have been known to be slightly quicker, what with the fast changes and the continuous Boost hold, which can't happen on the Manual. SO If the engine is rated at 306 BHP as per my 335i brochure, it should, deliver about 306x0.85 for the auto or 260 HP at the wheels. This agrees nicely with many of the Dyno charts I've been seeing which run from anywhere at 255 to 275 hp at the wheels. Now to go back to BHP you simply divide by the inverse of the loss, so 260/0.85 = 305 BHP. Easy really :-) Just insert your wheel HP figure or your BHP to suit. SJ |
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11-28-2007, 11:53 AM | #42 | |
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thanks SJ!!
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