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Forced Induction Forum Sponsored by Active Autowerke
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Old 10-21-2014, 05:10 PM   #1
El Gato Liso
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Vortech Blower...getting more boost/power

Hi!

My blower system is running just great and gravy in my e46 330. I get bored fast and thought about something to do over the winter.

I am entertaining the idea of bringing my 6 psi setup to perhaps 9 psi, so hopefully someone who has done this before can chime in with insight.


I currently have a 6 psi 3.66" pulley. I am looking to bring it to about 2.62"-3.25" (whatever is offered on the Vortech website). I have also considered other things such as an intercooler setup if I am seeking out 9 psi. I am currently running 30# injectors, but will probably change it to 42#.

I am hoping to hit about 400hp/325tq to the crank (going on the dyno in a week or 2 to figure out what i currently have). Since the blower has a smooth increase in power as opposed to a turbocharger having, figuratively speaking, an on switch of power and therefore more engine stress, would it be necessary to put in stronger head studs and a thicker headgasket to lower the compression? Also, would intercooling be necessary at that boost level? I read that intercooling can have opposing effects on super charger boost or something like that?



thanks for the help
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Old 10-21-2014, 05:48 PM   #2
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Quote:
Originally Posted by El Gato Liso View Post
Hi!

My blower system is running just great and gravy in my e46 330. I get bored fast and thought about something to do over the winter.

I am entertaining the idea of bringing my 6 psi setup to perhaps 9 psi, so hopefully someone who has done this before can chime in with insight.


I currently have a 6 psi 3.66" pulley. I am looking to bring it to about 2.62"-3.25" (whatever is offered on the Vortech website). I have also considered other things such as an intercooler setup if I am seeking out 9 psi. I am currently running 30# injectors, but will probably change it to 42#.

I am hoping to hit about 400hp/325tq to the crank (going on the dyno in a week or 2 to figure out what i currently have). Since the blower has a smooth increase in power as opposed to a turbocharger having, figuratively speaking, an on switch of power and therefore more engine stress, would it be necessary to put in stronger head studs and a thicker headgasket to lower the compression? Also, would intercooling be necessary at that boost level? I read that intercooling can have opposing effects on super charger boost or something like that?



thanks for the help
Who is tuning this setup for you?

The following are good to go:
Head studs
Head gasket
Compression Ratio

Intercooler would be beneficial for the extra boost, you will loose some boost but take that into account when deciding on your new pulley size. (Bigger is not always better than the one that complements the system you are running)

Before and after dyno.

All the best.
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Old 10-21-2014, 07:28 PM   #3
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Quote:
Originally Posted by El Gato Liso View Post
Hi!

My blower system is running just great and gravy in my e46 330. I get bored fast and thought about something to do over the winter.

I am entertaining the idea of bringing my 6 psi setup to perhaps 9 psi, so hopefully someone who has done this before can chime in with insight.


I currently have a 6 psi 3.66" pulley. I am looking to bring it to about 2.62"-3.25" (whatever is offered on the Vortech website). I have also considered other things such as an intercooler setup if I am seeking out 9 psi. I am currently running 30# injectors, but will probably change it to 42#.

I am hoping to hit about 400hp/325tq to the crank (going on the dyno in a week or 2 to figure out what i currently have). Since the blower has a smooth increase in power as opposed to a turbocharger having, figuratively speaking, an on switch of power and therefore more engine stress, would it be necessary to put in stronger head studs and a thicker headgasket to lower the compression? Also, would intercooling be necessary at that boost level? I read that intercooling can have opposing effects on super charger boost or something like that?



thanks for the help
I am running a vortech with 3.6 pulley right now.
Bought a 3.33, 3.25 and a 3.125 to try over the winter. Start with small gains and work up.

Looking to be at around 8 lbs and still be safe with my tune as is, it runs rich at the moment.

An MFI is another option should the AFR,s get too lean.
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Old 10-21-2014, 08:17 PM   #4
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how about no intercooler and running meth injection? Get a bigger tank in the trunk feeding your windshield wiper reservoir. Frank Smith has a tune for the M3 that if meth stops spraying it vents at 6psi but when spraying runs 9psi. If you could get tuned like that you'd be $
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Old 10-21-2014, 08:24 PM   #5
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Just because the air fuels are still on the rich side, does not mean it's safe to keep upping the boost. Your ignition timing will need to be modified to the VE and boost change. You can certainly still detonate and damage a motor regardless of air fuel ratio. You really should retune.
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Old 10-21-2014, 08:47 PM   #6
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Quote:
Originally Posted by Tchleung View Post
Just because the air fuels are still on the rich side, does not mean it's safe to keep upping the boost. Your ignition timing will need to be modified to the VE and boost change. You can certainly still detonate and damage a motor regardless of air fuel ratio. You really should retune.
Thanks for the input.
Small steps like I said

The OP was looking for opinions/ comments on whether he would need an intercooler running 9#.
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Old 10-21-2014, 09:46 PM   #7
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Here:

http://stores.ebay.com/Ultrarevparts..._sid=141155680



Good luck,
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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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Old 01-25-2015, 03:14 AM   #8
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Bump



My appologies, but thanks for the input!


Feb is around the corner and i am going to start digging into this power boost as well as collecting parts! I actually thought about swapping an s54 in and supercharging it, but As wild as it sounds I am sure it would be more cost effective to stick to my initial plan. I am not looking into meth...just a 'simple' cooling system instead. The Dinan E36 supercharger setup has that small intercooler unit, so I am going to see if i can get my hands on one of those instead of an entire front mounted unit. Thoughts on that?

If i could avoid a cooler setup all together that would be perfect. Of course i dont want to risk anything with increased boost and temperatures. Do you guys think it would be a bad idea to run more boost (currently topping out at 6psi) with no intercooling?

Thanks in advance! I am looking forward to this new project!
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Old 01-25-2015, 05:10 PM   #9
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Check this out
http://store.activeautowerke.com/col...s/supercharger

Another Z4 owner put me on to this.

The idea is you install a small pulley capable of 9-10 psi of boost, a WMI system and a tune.
There is a solenoid operated dump valve that opens at a preset psi, say 6 psi.
There is a "sport" button that closes the dump valve and activates a WMI system that allows you to run the 9-10 psi boost.

Seriously considering this.
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Old 01-27-2015, 12:02 PM   #10
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Thats pretty badass actually! ^^^. I have s VF setup so i would dount this system being compatible to AA's system



Its seems anything over 8psi should be intercooled. I am also trying to budget the build but spend the money on a supertune! I think my headgasket is fried. I suppose ill just get some studs and and cams while i have the headoff to change the headgasket. I am kinda thrilled to dig more into stage 2!
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Old 01-27-2015, 01:17 PM   #11
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Definately intercool it - just remember the 8psi will net around 6psi with a big intercooler, so go for the 10 psi pulley but we aware you might start to get belt slip at the higher rev's with the smaller pulley. 42's and fuel pump would be good to around 480 hp, but bottom end can't handle it so your sfae there running injectors and pump....
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Old 01-27-2015, 03:43 PM   #12
Rob43
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My thoughts are: Keep it simple.

The moment you start to Completely redesign your current S/C system,...you will run into headaches.

Cams: If you go this route, make sure you buy S/C Cams, not N/A cams.



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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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Old 01-28-2015, 08:18 PM   #13
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do you have 5 speed or 6 speed? If only 5 speed consider getting a 6 speed trans and a M3 rear axle which would give decent gearing advantage and LSD. 3.91 or 4.10's could also be implemented for additional gearing advantage
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Old 01-29-2015, 04:22 PM   #14
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do you have 5 speed or 6 speed? If only 5 speed consider getting a 6 speed trans and a M3 rear axle which would give decent gearing advantage and LSD. 3.91 or 4.10's could also be implemented for additional gearing advantage
^^^ this is a good way to achieve quicker acceleration without playing with the motor
I put a 3.73 from an 08 Z4 SMG in mine. You can feel the the difference SOP.
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