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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 08-31-2008, 02:58 AM   #1
jlcool007
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How much increase w/ port/pol., cams, headers, pullies, tuning?

Well, before i drop a ts3 (or whatever ess has to offer in 3 years from now), i'd like to make as much power N/A as possible. With all these crap cars coming out stock with like 260hp ect, i need a little boost to hold me over.

as far as n/a mods go, what is out there?

all i can pull out of my ass are:
headers
cams
tuning
port/polish
pullies
intake
differential

how much crank do you think i can extract with those? (i know its pretty bland and vague, but any help is great). I'm thinking maybe knicking 280hp/260tq?

what do you guys think... along with any brands you have in your head?
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Old 08-31-2008, 07:43 AM   #2
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what car are you talking about?

I hope not the e60
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Old 08-31-2008, 08:06 AM   #3
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NA performance cams won't work well with the Twin Screw.

Start with the Twin Screw and let it do what it do...
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Old 08-31-2008, 01:13 PM   #4
jlcool007
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e46 330ci, sorry lol

i will take off any mods that will conflict with the ts, but im looking for the most pwr output right now...

i just watnted to see how much i could take out of the stock block before FI, i love the sound of a well tuned N/A engine any day though

any input?

-jason
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Old 08-31-2008, 02:52 PM   #5
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For a street driven car you can do cams and headers (no cats) for about a 30whp gain. Thats probably as good as you'll get without sacrificing streetability/reliability. There's not much point in opening the motor, especially if you're going to go FI later on. Everything will be out of spec for whatever setup you decide to go with.
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Old 08-31-2008, 03:25 PM   #6
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so scratch internals,

intake
cams
headers (w/ bolt on cat section for emmissions)
Shark injector
tune

what do you guys think i'm looking at crankwise?

thnx for your help
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Old 08-31-2008, 06:16 PM   #7
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Quote:
Originally Posted by jlcool007 View Post
so scratch internals,

intake
cams
headers (w/ bolt on cat section for emmissions)
Shark injector
tune

what do you guys think i'm looking at crankwise?

thnx for your help
the intake, shark and tune (which are essentially the same thing since you cant tune this DME as-is) wont get you anything really. Headers and cams on my car were good for 30whp, so id say somewhere between 250 and 260 crank, depending on your trans. Thats without cats though. Cats rob a great deal of power.
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Old 08-31-2008, 08:04 PM   #8
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I wouldn't waste cash on cams if you're going to get the TS3 anyways, which includes FI cams. Except if you have a grand in cash spare and you're delaying the TS upgrade for a while.

The rest sounds decent.
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Old 09-03-2008, 02:46 AM   #9
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well then i guess ill look for some zhp cams for an xtra 10hp.

i hate this engine....

okay what if i threw in that i wasn't going to get a supercharger?

how much could i pull with the full list? (even though sc's are now pretty reliable)
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Old 09-03-2008, 09:01 AM   #10
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Like I said...about 30hp. Maybe 40 if you're lucky.
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Old 09-03-2008, 03:07 PM   #11
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Quote:
Originally Posted by jlcool007 View Post
well then i guess ill look for some zhp cams for an xtra 10hp.

i hate this engine....

okay what if i threw in that i wasn't going to get a supercharger?

how much could i pull with the full list? (even though sc's are now pretty reliable)
Well, depends on how much money you have and how much low end torque you are willing to sacrifice.

I mean, if you had a very large budget, you could convert the accessory items like power steering and water pump to electric. You could get the head ported and polished. Maybe larger intake valves if they could fit and stronger valve springs. Increase the compression ratio, lighter connecting rods and pistons, increase the redline, an after market ecu custom tuned for power...

I'm sure 300hp is possible, but that would be extremely expensive. Also there are the added difficulties of keeping an engine like that emissions legal. But anything is possible with large amounts of money...
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Old 09-03-2008, 03:26 PM   #12
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I heard that our ports are relatively small compared to the valves, and could therefor be widened be 1-3mm. Would this bring any gain?

What do you mean with converting power steering and water pump to electric? A switch to generally turn off the power steering would be great, IMO.
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Old 09-03-2008, 03:28 PM   #13
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I also found this: http://www.noellemotors.de/3_3l_engi...57d93e4.0.html

The 3.2L kit costs €10K (~$15K) including install, meaning you would have to send in your engine
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Old 09-03-2008, 05:09 PM   #14
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Quote:
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Well, depends on how much money you have and how much low end torque you are willing to sacrifice.

I mean, if you had a very large budget, you could convert the accessory items like power steering and water pump to electric. You could get the head ported and polished. Maybe larger intake valves if they could fit and stronger valve springs. Increase the compression ratio, lighter connecting rods and pistons, increase the redline, an after market ecu custom tuned for power...

I'm sure 300hp is possible, but that would be extremely expensive. Also there are the added difficulties of keeping an engine like that emissions legal. But anything is possible with large amounts of money...
You dont want to do any of those things on a street car.
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Old 09-03-2008, 05:16 PM   #15
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You dont want to do any of those things on a street car.
Why not? Because it increases wear'n'tear? Or because it may seem that the money-to-performance ratio is too low?
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Old 09-03-2008, 05:28 PM   #16
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most likely it'll drive like shit unless you're in high rpm's, and it's so much easier to Twin Screw that and save alot of money.

If you are going to dump that much money in a motor, just sell the functioning motor you have and buy a E39 V8 and drop it in...
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Old 09-03-2008, 05:33 PM   #17
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most likely it'll drive like shit unless you're in high rpm's, and it's so much easier to Twin Screw that and save alot of money.

If you are going to dump that much money in a motor, just sell the functioning motor you have and buy a E39 V8 and drop it in...
WHat would happen if you did all of that, THEN twin screw the engine?
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Old 09-03-2008, 05:57 PM   #18
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a black hole would form.

the OP shouldn't waste his money on cams he is just going to take out in a few months for an upgrade to TS.
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Old 09-03-2008, 07:10 PM   #19
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a black hole would form.

the OP shouldn't waste his money on cams he is just going to take out in a few months for an upgrade to TS.
No kidding.... do I keep hearing a echo or something because I sware thats been said before (hint hint for the OP)...
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Old 09-04-2008, 07:35 AM   #20
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Why not? Because it increases wear'n'tear? Or because it may seem that the money-to-performance ratio is too low?
When you do those things, you need to rebuild frequently. The car's powerband moves way above where you'd use it on the street. Having the ability to keep, tune and use VANOS becomes a $15,000 proposition as well. So you're pretty much guaranteed to have something expensive and useless for street driving.
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