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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 11-29-2004, 07:18 PM   #1 (permalink)
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compatible with my 325i m50b25?

flow is 24# per hour if im not mistaken. ive heard this is a decent upgrade over the stock ones? any truth to this?

also.. m52 intake manifold would this be a decent upgrade over the m50? ive heard its compatable. any significant performance increasE?

gawd so many mods so little time...and money
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Old 11-29-2004, 07:39 PM   #2 (permalink)
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I'm pretty sure it wouldnt be that great up an upgrade... your still going to be pumping the same amount of fuel... and your still going to have the same fuel pressure regulator which will only allow as much as the drop in pressure of your intake manifold.

Not to mention your fuel map will not change within your ECU.

If you want to get the best out of larger injectors.... you must either upgrade your intake manifold with new software included which will change your fuel mapping.... (Jim Conforti makes a good one)

In a perfect world you could run a independent fuel system... with a larger output pump... larger injectors... and a better manifold thus giving you a lot better power curves and more power.

Good Luck,

Les
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Old 11-29-2004, 08:38 PM   #3 (permalink)
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Yup. To benefit from more fuel, you would have to have more air as well. A big ole' CAI, MAF, and intake would take advantage of 24#s/hr from the ///M injectors.
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Old 11-30-2004, 11:25 AM   #4 (permalink)
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Quote:
Originally posted by catalyst.@Nov 29 2004, 03:18 PM
also.. m52 intake manifold would this be a decent upgrade over the m50? ive heard its compatable. any significant performance increasE?

gawd so many mods so little time...and money
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no, m50 manifold is better than m52. the older obd-i manifold (m50) is less restrictive. many obd-ii m3 peeps toss their m52 manifold for the m50. this is best coupled with intake & 3.5" MAF.
http://www.team-bar.com/diy_m50manifold.htm
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Old 11-30-2004, 04:05 PM   #5 (permalink)
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air to fuel ratio..... just injectors would be a waste...

DAvid
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