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02-18-2010, 01:39 PM | #1 |
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still looking for ways to upgrade the ole 30i
I bought the 30i because of the weight and prospect of better handling related to that, and was skittish of fuel pump issues that infrequently haunt the n54 engine. The handling is all fine and dandy while I'm stationed in Germany, but heading to the states again in the next yr or 2 and its all about 0-60 and 1/4 mile times. Any suggestions so i can start building this thing up before I switch duty stations would be awesome! Tschuss!
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02-23-2010, 10:20 AM | #3 |
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Be carefull ... BMS Powerbox is a piggy back thing.
This means it fools the car's ECU by altering the values of the input sensors. It doesn't replace the original ECU, neither does provides direct control to the car's manipulated variables e.g. spark advance and/or fuel injected volume. This means it doesnt provide new maps. What it does is that it alters, let's say, the value of the air mass read by the air sensor. As a result the car's ECU instructs for more fuel injected in the combustion chamber, to keep the engine running and/or to produce more torque. Another thing that BMS Powerbox does, is that it recalibrates the gas pedal potensiometer thus providing more aggressive response (we get that in the E89 Z4 by selecting sport or sport+ mode using the switch near the gear shift). I read their manual and I think they provide 8 different "maps" (as they called them), which only ONE of them is the actual tunning without the throttle remapping. Nevertheless I think that we must know exactly which sensor values are altered by this thing, because there are many parameters taken into account when the engine is controlled, like cooling water temperature, crank/camshaft angle, engine actual rpms, intake air mass, intake air temperature, gas pedal position (there's no throttle in the N52 engine - to be precisely there IS a throttle indeed but ONLY for idle speed control), actual spark advance, remaining oxygen in the exhaust gases (which is measured by the lamda sensor and then is used to calculate the lambda ratio, which in turn provides a measure of the combustion efficiency), etc. Judging from the price I think it is too cheap to be a good thing. A full ECU remapping cost starts from 500 euros ... and of course the installation procedure is totally different ... As a last observation, the only good thing with this, is that it provides the gas pedal remapping for BMWs not having s/s+ mode.
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02-24-2010, 11:50 PM | #6 |
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Drives: 2010 Dinan S3 Z4-35i
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What about a supercharger if any for the Z4 out there?
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02-25-2010, 08:27 AM | #7 |
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Nope ... N52 engines are valvetronic engines and therefore it is very difficult to supercharge ... So far no one has managed to do it ...
Only thing you can do is complete ECU reprogramming and the gain will be approx. 10-12 hp + 2-3 hp with a new air filter and a performance exhaust system. I think it's worthless !
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02-25-2010, 09:14 AM | #8 |
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Sounds like you are looking for more straightline speed...1/4 mile etc. Well that is probably why people are suggesting you to upgrade to a 35i. The 30i with basic bolt-ons can hold its own on the road but will get owned on the strip I am afraid to say.
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02-25-2010, 11:51 AM | #9 |
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Already posted this info some time ago.
An expensive stroke option of the German company Noelle: 3.2l engine (basis BMW N52 B30) modifications to standard engine / scope of delivery: 1 crankshaft 6 pistons 6 connecting rods 2 catalyst pipes 1 end silencer technical engine dates: cylinders 6 bore 85,00 mm stroke 93,00 mm effective capacity 3165 ccm compression ratio 10,8 engine power: max. HP 306 HP/6700 min-1 , 347 Nm/2900 min. http://www.noellemotors.de |
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02-25-2010, 12:01 PM | #10 | |
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Quote:
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02-25-2010, 01:34 PM | #11 |
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it will cost a fortune - better off selling the 30i and buying a 35i; once you dig into the bottom end of the motor (i.e. crank) the bucks pile up very fast
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02-25-2010, 03:47 PM | #12 |
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well, I'm not made outta money so It will take some savings, but yeah...i like the noelle thinking. I am by no means upset with my 30i decision, but there is a little buyers remorse. its ok...ill go to war again and trade up to a 35is i guess lol...addressing the supercharge question; as the N52B30 is a magnesium alloy block, any attempt to supercharge it could possibly blow it up. This isn't hard researched fact on my part...just what ive gleaned from reading up on the composition...its lightweight, but just not strong enough all together to support additional pressure of much magnitude. If i find a feasible fix (and I am actively looking) i will post it
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02-25-2010, 05:36 PM | #13 | |
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I checked their site and the increased capacity solution is applicable to M54 engines only (previous generation). Didn't find anything about N52 engines. Can U tell us where exactly did U find that info ?
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02-26-2010, 11:43 AM | #14 |
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02-26-2010, 02:12 PM | #15 | |
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02-26-2010, 09:57 PM | #16 |
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Drives: Z4 E89
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02-26-2010, 11:52 PM | #17 |
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Having owned several NA and turbo cars in the past and modified ALL of them to improve power output I have to say I would be dissapointed at the outlay for a minimal increase in power on NA car like a 30i. It just isnt worth it unless you do it for the sound or enjoyment of it.
With my current 135i a cheap mod can yield massive gains quickly and without any fuss. If I own another NA car the most I would do would be a filter and exhaust just for the sound. |
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03-06-2010, 02:48 PM | #18 |
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i know there is apprehension about ecu changes that the powerbox (counterpart to the juicebox) would make, but for other N52B30 engines it has worked wonders and I have yet to see a negative review. I am apprehensive for 2 reasons...the first being the obvious. Im afraid it will phlunk up the engine. the second is that I am so mechanically non-inclined that kittens die when i even pull out a screw driver. but all that being said, its looking as though i may lean toward a powerbox. If anyone has any firsthand experience with this I would greatly appreciate the input (vendors...I know what you will say, so just people who have purchased it, thanks)
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