12-26-2013, 11:48 AM | #177 |
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This thread makes me LOL!
There will be no ECU remap tune for the S55 for at least 3 years after the M4 hits the streets. We're still waiting for a real remap to come out for the S63tu, nothing but broken promises. Piiggyback is the word of the day. Anyways, the S55 just like the S63tu is going to be terrific right from the factory. So no need for a tune really. If you want tunability go to Mercedes. Those engines are highly tunable. Just need to open up the sound on these BMW engines a bit to get more enjoyment out of them. ![]()
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12-26-2013, 01:48 PM | #178 | |
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How many owners of the F8x are really going to track to car to make use of the extra cooling or built-up tranny? .
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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12-26-2013, 01:50 PM | #179 |
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I think we can be pretty sure that BMW want to sell you factory tunes for the F8X. Milder tunes for sub $10k branded comp. packages and more aggressive tunes in form of special edition cars at a +$10k price tag. I also think the ECU is going to be even tougher to crack than the M5's taken that it has a few years newer tech. BMW has no incentive to make it easy for 3rd party tuners, rather the opposite.
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12-26-2013, 02:07 PM | #180 |
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I don't understand this thing with people on the forums saying the S55 is a tuned up version of the N55, have you seen picture of both engines side by side??
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12-26-2013, 02:16 PM | #181 | |
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The S55, however, will likely also behave TOTALLY different than a tuned N55. It has two turbo's, more direct and better airflow/intercooling, way better cooling system, way more advanced mapping than a tuned N55, way higher redline and NOT LEAST the anti lag function (try and tune that function in your N55 and see how that works out for you ![]() All of the above creates a very different animal than the N55, tuned or not. IMHO the S55 will be just as different in it's behaviour from the N55 as the S50 was from the M50 or the S54 from the M54 (and I have driven both M50 and S50, M54 and S54 equipped cars. Believe me the major difference is sharper throttle response, more power and higher redline as well as better sound). All of which are traits the S55 should have over the N55 and which a N55 can't be "tuned" to achieve (like anti lag, twin turbos with more flow, better cooling, forged crank, high rpm redline etc). And, the F8x either has DCT or if going with the MT6, that has the rev matching function on downshifts. Last edited by Boss330; 12-26-2013 at 02:23 PM.. |
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12-26-2013, 02:53 PM | #182 | |
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APR has put a 1.7 liter blower on the S4 to replace the factory 1.3 liter blower and it makes over 500 HP on a 3.0L block. It's not priced yet so I can't say whether I would go for that. The 1M is the best car BMW has built to date, in terms of motorsports performance. Those cars always pull away from me on track, no matter who is driving them. They're nimble and fast. The M3 needs to build on this. Anyone who says the S55 is not tunable has no experience with forced induction cars. It will be tunable but it will certainly require a cooling upgrade if you want to track the tune. It is funny that some people's favorite BMW is the 335d or 535d. They say they love torque so they put up with diesel. What they actually love is turbochargers, not diesel. My E90 325i was faster around the track than a 335i only because most 335i could not finish a dozen laps if it was like 80 degrees out. I passed a lot of limpers.
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12-26-2013, 02:58 PM | #183 |
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I wouldn't have added a tune to my 335is if it had the power that the s55 has and once I increased its power the chassis and brakes didn't handle it well. Why would we void our warranty on a new M4 by adding a tune and upsetting the balance of the cars chassis that BMW has been tweaking for the last year or so.
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12-26-2013, 03:11 PM | #184 |
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This is a question that can't be posed to serious car nuts. It's like asking a body builder why they need so much muscle...........or a chick why she needs a pair of fake tits.......or........or..........or! Modding is not an exercise in prudency.
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12-26-2013, 03:15 PM | #185 |
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12-26-2013, 09:08 PM | #186 | |
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I'm like ENZIO, exicted, but have major concerns about the new //M and the M5 isn't adding to my low confidence level in the new M3/4. .
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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12-26-2013, 11:38 PM | #187 |
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2.0L engines easily put out 500hp to the wheels. Should be easy with a 3.0L and two extra cylinders.
That being said id want a more responsive engine and more throttle control with the new technology rather than trading that for more power. |
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12-27-2013, 12:12 AM | #188 | ||
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12-27-2013, 05:29 AM | #189 | |
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You're actually doing pretty good on your own here. Continue, please. |
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12-27-2013, 06:30 AM | #190 |
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I think we can get 50-70 whp with proper software and bolt ons.
Consider this new m4 weighs less then 1500kg it is even enough torque and power with the stock setup. But for those who want to push things further,there is space with s55!!! ![]()
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12-27-2013, 12:10 PM | #191 |
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I've been able to deal with a 7200 RPM fuel cutoff on my S4 with no issue on most tracks. I usually drive the track in 4th until I learn it, then find a few places to bump down to 3rd when my line is ironed out. Honestly there is so much torque in a forced induction car you're just overworking and overheating the engine running it over 6000 RPM all day in 3rd. If you have open track in front of you, just drop into 4th as soon as the wheel is straight.
I've seen a few new M5 and new M6 out on track. They are basically running the same times as the X5 M and the X6 M. The SUV is a touch heavier but has more torque, IIRC. I just realized that yesterday thinking back through my weekends at Laguna Seca with the BMW CCA.
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12-27-2013, 01:02 PM | #192 |
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Please do not forget that 1500 kg is in no way "apples to apples" with the current car (or most official OEM specs). This figure is sans driver. A much better comparison is that the MT car is "80 kg lighter" than the current (MT) car, thus about 3470 lb (1575 kg).
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12-27-2013, 01:22 PM | #193 |
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I've never really been interested in high end turbo cars, it has always been the NA exotics that make my heart skip a beat. Question for the turbo car fanatics here, what is the stock street legal turbo car with 3 liter or less displacement with the best throttle response ever built no matter brand or price?
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12-27-2013, 01:48 PM | #194 | |
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Both the M5 and X5/6M have 680Nm of torque, the M5 over a broader rev range. If the M5's run the same times as the X5/6M then I'm pretty sure that has to do with the drivers and not the cars... |
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12-27-2013, 02:51 PM | #195 |
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So is this mean that new m4 1495 kg is not really true? Or you just compare the weight of new and old car?
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12-27-2013, 03:26 PM | #196 | |
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With that said, swamp was trying to point out that this weight figure is not "apples to apples" with the last generation M3. The last "official" weight figure included 75 kg for driver and cargo. There are a few long threads on M3Post that go into detail about this "listed official weight" issue. |
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01-01-2014, 02:15 PM | #197 | |
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Base M6 also has the same torque as the X6M, though it gets more with the competition package. Last edited by Patronus86; 01-01-2014 at 02:22 PM.. |
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01-01-2014, 02:28 PM | #198 | |
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Cheers.
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