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Forced Induction Forum
Discuss supercharging, turbocharging and even nitrous and water injection here.

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Old 09-29-2016, 01:33 PM   #1
i<3e46m3
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Thinking about supercharging, thoughts ?

Hi all I've had my m3 for almost a year now, I love it but I'd like to give it a bit more. I'm off to college next year so I'd like to kinda go crazy with my car because I'm not sure all have it wherever I end up going, I was originally looking at the HPF superchargers but since last I heard they're out of business I'm not sure that's the way to go, so my next choice is a VF480 Supercharger. I have roughly $10k set aside for this so any suggestions are welcome, as of right now the car is mostly stock.
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Old 09-29-2016, 03:02 PM   #2
bradleyhenry94
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VF and ESS are the best based off what I've read on the forums.
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Old 09-29-2016, 03:53 PM   #3
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Is all of your maintenance caught up? VANOS bulletproofing? Subframe reinforcement? Services? All bushings?
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Old 09-29-2016, 04:09 PM   #4
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Is all of your maintenance caught up? VANOS bulletproofing? Subframe reinforcement? Services? All bushings?
^ This.


Then consider giving it to Maximum PSI in NJ for a Turbo install, this will push your budget slightly but their results will exceed your wildest imagination.



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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Cheap Coilovers Like: Jom RL FK SE & RK.
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Old 09-29-2016, 04:36 PM   #5
i<3e46m3
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Is all of your maintenance caught up? VANOS bulletproofing? Subframe reinforcement? Services? All bushings?
I haven't touched the vanos because as far as I can tell there's no issues with it. maintenance is current and I'm factoring subframe reinforcement into it.

I figured the vf would be $6-7k

subframe - $2k

not sure about the vanos bullet proofing,

and then I'd either get magnaflow exhaust or a big brake kit.
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Old 09-29-2016, 05:54 PM   #6
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I haven't touched the vanos because as far as I can tell there's no issues with it. maintenance is current and I'm factoring subframe reinforcement into it.

I figured the vf would be $6-7k

subframe - $2k

not sure about the vanos bullet proofing,

and then I'd either get magnaflow exhaust or a big brake kit.
You really should look into Vanos bulletproofing. Specifically:
Getting a new oil pump hub from one of the guys who do cryotreating or get Beisan Systems oil pump disk.
New seals for the Vanos pistons and solenoid pack.
Remanufactured solenoid pack.
I can't remember if there's a cutoff for needing new sprocket bolts, I've only had older E46 M3s that were susceptible to the sprocket bolts failing.

All in all, going through Besian Systems the parts will cost about a grand, but you recoup some of that by mailing back your old solenoid pack and oil pump disk. It's pretty easy to do as well, although getting the oil pump disk back inside it's collar is a huge PITA.
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Old 10-04-2016, 10:40 PM   #7
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You really should look into Vanos bulletproofing. Specifically:
Getting a new oil pump hub from one of the guys who do cryotreating or get Beisan Systems oil pump disk.
New seals for the Vanos pistons and solenoid pack.
Remanufactured solenoid pack.
I can't remember if there's a cutoff for needing new sprocket bolts, I've only had older E46 M3s that were susceptible to the sprocket bolts failing.

All in all, going through Besian Systems the parts will cost about a grand, but you recoup some of that by mailing back your old solenoid pack and oil pump disk. It's pretty easy to do as well, although getting the oil pump disk back inside it's collar is a huge PITA.
Was looking at this because plan on supercharging in the long run and wanted to rebuild my vanos, didnt look much into it so i didnt know about besian. Just looked into it too, very informative so thank you!
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Old 10-08-2016, 12:38 AM   #8
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SC is a waste. I should know. VF570 and ESS 550 meth and headers. Waste. Turbo it!!
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Old 10-09-2016, 11:26 AM   #9
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Getting the oil pump disk back into the ring is easy as hell. Hold all three metal tabs back into the disc and push the disc down inside the ring. Then pull the ring up a little bit. Youll feel the disc seat itself inside the ring. Spin it bybhand to test thw operation. Follow beisans instructions. Very easy

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Old 10-11-2016, 12:51 AM   #10
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SC is a waste. I should know. VF570 and ESS 550 meth and headers. Waste. Turbo it!!
How was it a waste for you?
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Old 10-12-2016, 12:41 AM   #11
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How was it a waste for you?
Low boost numbers. A slow boring build to only 9 psi with ess 550. Maybe blipped 10 on occasion but only on very top of rev range. Still suffered all the bogging on low end with lackluster mid and high end linear ranges. Turbo is an instant kick at 4K rpm all the way through the rev range. Now that u can get maxpsi set up for abt same price as 550 why anyone would go with sc'd is beyond me. SC is old news now.
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Old 10-12-2016, 12:55 AM   #12
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Originally Posted by 808elise View Post
Low boost numbers. A slow boring build to only 9 psi with ess 550. Maybe blipped 10 on occasion but only on very top of rev range. Still suffered all the bogging on low end with lackluster mid and high end linear ranges. Turbo is an instant kick at 4K rpm all the way through the rev range. Now that u can get maxpsi set up for abt same price as 550 why anyone would go with sc'd is beyond me. SC is old news now.

A conservative single shot of Nitrous will solve your " bogging on low end" issue, Nitrous equals torque plain n simple....


EDIT: Not sure if you're currently running a S/C or have already made the switch to a turbo ?



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I BUILD SUSPENSIONS (Consult) FROM MILD TO WILD FOR RWD & Xi E46's
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Cheap Coilovers Like: Jom RL FK SE & RK.

Last edited by Rob43; 10-12-2016 at 12:59 AM.
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Old 10-12-2016, 11:11 PM   #13
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Turbo and not going to b using nitrous
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Old 10-13-2016, 08:20 AM   #14
bobm3
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he he he why dont you

Quote:
Originally Posted by 808elise View Post
Low boost numbers. A slow boring build to only 9 psi with ess 550. Maybe blipped 10 on occasion but only on very top of rev range. Still suffered all the bogging on low end with lackluster mid and high end linear ranges. Turbo is an instant kick at 4K rpm all the way through the rev range. Now that u can get maxpsi set up for abt same price as 550 why anyone would go with sc'd is beyond me. SC is old news now.
put a 390 something or a 410 gears in your car that will wake up your off the line lag... with 410 gears top end is 175mph will run a few hundred rpm higher in each gear but it is so worth it
it is worth it if you have less than I say 500 rhp or so.... after that it is not worth itit will be hard to control off the line.....
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Old 10-14-2016, 02:27 AM   #15
808elise
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Nah jus need continue to dial in tune. Jus bogged down with way to much fuel on low end. This is my parking after a mo of cold starts:



Car smells like the insides of a gas tank with 2200# injectors and surge tank in the trunk:

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Old 10-28-2016, 12:03 AM   #16
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SC is a waste. I should know. VF570 and ESS 550 meth and headers. Waste. Turbo it!!
Centrifugal sc are a waste. If you're going to go centrifugal, turbo. If you want instant throttle response and boost from right off idle, roots or twin screw sc ie- ESS TS1/2

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Old 10-28-2016, 12:25 AM   #17
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True but now days I just see so little reason for sc. New turbos have very little spool time and lag is non existent. Few more years should give us even more tech.
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Old 10-28-2016, 03:07 PM   #18
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But sc have also made major technological strides. Newer twin screw and high helix designs are vastly more efficient than traditional roots blowers. The Lysholm units ESS use reportedly only consume around ~2hp to drive when not in boost. The best turbos currently available are ball bearing, split scroll, variable vane units that are insanely pricey, and even then all those improvements only serve to minimize lag. They are still of centrifugal design which means you will never have that immediate throttle response and be in powerband right off idle
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Old 10-30-2016, 09:59 AM   #19
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It really depends on your goals with the car. My car is sc and I love it. Rms stage 2. Worst company to deal with best parts. Imho. It made 460hp to the wheels on a mustang dyno. Yes I could turbo it and make more don't care. It's been on there for 3-4 years and 50k miles. 15-20 track days. Zero issues. If u want to roll race or drag get a turbo. If u want to track your car and still have a fast street car sc is a great option. Just my $.02.
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Old 11-12-2016, 06:17 PM   #20
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Love my active sc kit . 12-15 psi 510 whp
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