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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 10-09-2012, 09:14 PM   #41
sedanpowersc
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Quote:
Originally Posted by Iceman00 View Post
I'll keep waiting. And for the record, I added 20whp. Stock cams, headers and intake manifold. 175whp+ and waiting (maybe) for headers and intake manifold.
You added 20whp from what??
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Old 10-10-2012, 07:19 AM   #42
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Originally Posted by sedanpowersc View Post
You added 20whp from what??
He said he's sitting at 175 WHP, 175 minus 20 = 155....
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Old 10-10-2012, 09:16 AM   #43
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Originally Posted by jared_wiesner View Post
He said he's sitting at 175 WHP, 175 minus 20 = 155....
Yeah i understand that but is that 20whp over stock with just some headwork?

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Old 10-10-2012, 09:35 AM   #44
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The head is the most restrictive part of our engines, no matter the displacement. Just a simple polish of the OE head castings can improve the flow and increase torque and HP. Why is this hard to understand?
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Old 10-10-2012, 11:03 AM   #45
sedanpowersc
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Originally Posted by Hornung418 View Post
The head is the most restrictive part of our engines, no matter the displacement. Just a simple polish of the OE head castings can improve the flow and increase torque and HP. Why is this hard to understand?
I already knew that and i understand, im just asking, he never said what he gained 20whp from so i was confirming that it was in fact from just headwork. By that notion i should make ~215-220whp with headwork and my cai and exhaust considering my car makes anywhere from 190-200 stock

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Old 10-10-2012, 11:20 AM   #46
jared_wiesner
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Originally Posted by sedanpowersc View Post
I already knew that and i understand, im just asking, he never said what he gained 20whp from so i was confirming that it was in fact from just headwork. By that notion i should make ~215-220whp with headwork and my cai and exhaust considering my car makes anywhere from 190-200 stock

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He has stock un-ported heads. Headwork will get you very little gain without support from other mods. The head may be restrictive, but only once you open up the bottle neck of the stock exhaust manifolds and even more-so once you have cams. Headwork would be the very last thing I do to an engine that is breathing as well as it can everywhere else. Otherwise you will see very little gain from your money until you do everything else. Headwork will act like a multiplier to every other N/A mod you do. If you do nothing and only headwork, it will net you almost nothing.
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Last edited by jared_wiesner; 10-10-2012 at 11:21 AM.
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Old 10-10-2012, 11:27 AM   #47
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Originally Posted by jared_wiesner View Post
He has stock un-ported heads. Headwork will get you very little gain without support from other mods. The head may be restrictive, but only once you open up the bottle neck of the stock exhaust manifolds and even more-so once you have cams. Headwork would be the very last thing I do to an engine that is breathing as well as it can everywhere else. Otherwise you will see very little gain from your money until you do everything else. Headwork will act like a multiplier to every other N/A mod you do. If you do nothing and only headwork, it will net you almost nothing.

Got it.
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Old 10-10-2012, 07:11 PM   #48
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picking up an intake mani next week for 50 bucks

the flange for the head will run me 80 bucks

velocity stacks no idea

i gotta do some research... Iceman gimme specs for my custom mani!!!

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Old 10-10-2012, 07:49 PM   #49
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I have built a custom intake and intake box all made of aluminu
And custom strut bar like no other and was thinking of starting to sell
Them to all fanatics check out my pic hard to see till I
Post more close up pics and also pics of fabrication process
Let me know what u think also built custom exhaust all stainless steel
Havent posted pics every thing is tig welded I have weld and fab shop
Thinking of building intake manifold but need to machine the mounting
Flang but dont know where to go from there dont know how
To actualy gain hp by just incressing volume of mani or what need help
From real knoledgable people, research is not cheap.
Really intressted in going in to performane mods and opening
Performance shop.
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Old 10-10-2012, 09:52 PM   #50
sedanpowersc
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Originally Posted by lui328i View Post
I have built a custom intake and intake box all made of aluminu
And custom strut bar like no other and was thinking of starting to sell
Them to all fanatics check out my pic hard to see till I
Post more close up pics and also pics of fabrication process
Let me know what u think also built custom exhaust all stainless steel
Havent posted pics every thing is tig welded I have weld and fab shop
Thinking of building intake manifold but need to machine the mounting
Flang but dont know where to go from there dont know how
To actualy gain hp by just incressing volume of mani or what need help
From real knoledgable people, research is not cheap.
Really intressted in going in to performane mods and opening
Performance shop.
Very interested in see your custom manifolds! Need to dyno before and after and see what you can pick up!

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Old 10-19-2012, 02:30 PM   #51
IrocThe325i
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just got the other intake so hopefully will get this project goin soon

Not from my iphone
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Old 10-19-2012, 06:43 PM   #52
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Lol lots of negativity in this thread. Lets see:

11.5:1 high compression pistons (stock CR is closer to 10:1)
272 cams
extensive headwork to flow a claimed 85% more than stock

Id believe 280+ whp from this setup. On a 4 cylinder car, every point you raise the CR is worth 20+whp, after a full dyno re-tune.

Last edited by bryce-o; 10-19-2012 at 06:43 PM.
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Old 10-19-2012, 07:23 PM   #53
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i have considered in stalling e90 manifold they seem less restrictive to me but you have to mate the injectors and other electronics

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Old 10-19-2012, 07:50 PM   #54
fastjasonbmw
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Fyi, don't use the disa valves from the E90 mani, I had one come apart and get stuck in #6 intake valve, somehow the valve didn't get bent.

If there is room in the m54 head, you could machine some holes for the injectors & fab a custom fuel rail. Assuming the intake ports match up to the m54 head.

Last edited by fastjasonbmw; 10-19-2012 at 07:52 PM.
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Old 10-21-2012, 04:49 PM   #55
sedanpowersc
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Originally Posted by Russian172 View Post
i have considered in stalling e90 manifold they seem less restrictive to me but you have to mate the injectors and other electronics
Is this an easy swap/power gain from this?
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Old 10-21-2012, 04:54 PM   #56
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Originally Posted by sedanpowersc View Post
Is this an easy swap/power gain from this?
I'm almost 100% when I say this has never been done before.
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Old 10-21-2012, 08:57 PM   #57
IrocThe325i
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I'm almost 100% when I say this has never been done before.
yeh i doubt the ports are even close

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Old 10-21-2012, 10:01 PM   #58
sedanpowersc
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yeh i doubt the ports are even close

Not from my iphone
That's what i was thinking but he was making it sound like it isnt too hard, but from what i understand the manifold isnt the bottle cap but the actual head is so im wondering why even go through the trouble swapping manifolds if it wasnt pretty simple to swap or worth any real gains

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Old 10-22-2012, 01:04 AM   #59
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Old 10-22-2012, 01:13 AM   #60
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would be interesting if the n52b30 manifold would bolt up to an m54

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