08-22-2010, 10:22 AM | #1 |
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Here's the one thing I pray BMW does with the 1M
I pray BMW uses slightly larger turbos on the N54 engined 1M. That way we'll have an oem turbo upgrade option for our 135i's. Slightly larger turbos will support higher airflow to maintain torque into the upper rpm's. Combine the larger turbos with aftermarket software and you're faster than a 1M.. for MUCH less money.
That's similar to the oem B5 RS4 turbos that are common to find on B5 S4s.
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08-22-2010, 04:26 PM | #4 | |
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Kinda like taking the GT-R's (3.8 TT) engine and shoving it in the 370Z, or the 997.2 GT3 RS engine in the Cayman. |
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08-22-2010, 10:54 PM | #5 |
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I searched through all his posts and couldn't find this reference. Can you link it please? Thanks.
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08-22-2010, 11:36 PM | #6 |
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08-23-2010, 10:48 AM | #7 | |
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08-23-2010, 12:19 PM | #8 | |
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I also hope they use larger turbos, but not so I can swap them into the 135i. As said before, you're not going to have enough cooling, braking, grip, suspension, aero in the the 135i to take advantage of the power or warrant the price of the upgrade.
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08-23-2010, 12:20 PM | #9 | |
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Then there were lots of rumors by various sources on the net about the 1M engine being a tuned N54 ... but no real evidence. The rumor about problems getting the N55 ready was mentioned in Bimmercast #27, that can be downloaded here. So what's the bottom line? We don't know |
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08-23-2010, 07:16 PM | #10 |
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08-24-2010, 10:28 AM | #12 | |
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08-24-2010, 11:15 AM | #13 |
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09-04-2010, 08:35 PM | #15 | |
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However, you're speculation that all you would need to do is get larger turbo's and a tune and you're faster than a 1M, that would only be somewhat true if you're comparing stock 1M to a modded 135i. But, any tune you could do the 1M could do too, and even better. Why? Because, BMW will probably strengthen some of the engine internals to get the increased power from the N54. They have to warranty the vehicle for 50k miles, and potentially to 100k with an extended warranty. To ensure longevity, BMW can't simply slap on some larger turbo's and a tune and call it day, like your typical backyard tuner, who takes warranty into their own hands. So with strengthened internals, larger turbo's that type of 1M engine has the potential to see increased boost beyond what a stock 135i could do SAFELY. A 135i would need the turbo's, better FMIC, and a tune, that all costs, and you don't have a warranty. If the 1M wanted more power and forgo the warranty, then it would only need a tune as it already would have the needed hardware to produce more power. Those larger turbo's won't come cheap, you need two. Plus, you don't have the LSD, suspension, and BMW chassis tuning. Yes, you could have a similarly fast 135i, but that's only in a straight line. It would cost less, and that's all you'd get. |
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09-05-2010, 03:47 PM | #16 | |
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09-05-2010, 04:59 PM | #18 |
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i just hope they run very low turbo pressure and that the hp is comming from the engine not from the turbo s. I drove time attack today in an evo 7 with more 500hp. When the turbo s running it s awesome fast. But the lag is to much for nice cornering and play with the throttle. So please let the engine do the work and let the turbo be on very low pressure to give engine some support.
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09-05-2010, 10:50 PM | #19 | |
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Besides, if anything his post would indicate that he does like torque (since he was complaining about having to wait through the massive turbo lag of a 500hp Evo). |
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09-06-2010, 04:57 AM | #20 |
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formula ///M lots of guys are in the tuning scene. And they have rather 1000hp.
I drove an evo 7 yesterday more then 500 hp slicks better suspension etc. But can t enjoy the horse power and nm because the spoolup is to slow after you exit a corner and floor it. Everytime you loose lots of time there. It makes up for straights but you loose it at the next corner. So turbo is fine. But spoolup and throttle response needs to be on the same level as high rev atmo engine if youre want to fully enjoy youre ///M on track. For tuning boys on the straight it doesn t matter one bit. But then again is it ///M Motorsports or ///Marketing. An engine of the 135i is useless on track in comparisment of ///M engine like the E46 M3 and CSL. A 135 also had to much lag an low throttle response for trackdays. An E46 M3 is perfect for throttle steering. I have not found a turbo yet which can be throttle steered perfectly. I hope a 1///M does i wish. 1///M coupe needs throttle response and no lag. So there is only one way and that is that the 3.0 liter makes the most hp itself with very low boost turbo next to it. The more work the turbo does the more lag you will encounter if you go from off to on throttle. And throttle steering is out of the question. Last edited by Advevo; 09-06-2010 at 05:03 AM.. |
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09-06-2010, 09:21 AM | #21 | |
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If they raise the rev limit they'll have to use larger turbos because stock 135i turbos can't maintain the same boost at the higher airflow rates and still meet oem design specs of not running turbos to the ragged edge. I'll bet money BMW doesn't use variable vane for the 1M.
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09-07-2010, 01:00 AM | #22 | |
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The issue is WHERE it makes the power. The powerband needs to be moved up at least 500 rpms, preferably 1000 to have that "M" feel.
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