"Compound Boost" - A Supercharged and Bi-Turbocharged N54?

SINGH_ · 10-31-2014, 03:30 AM

Why not keep our stock twins and slap a small centrifugal supercharger into the mix...

It's not a new concept, Ford/Terminator guys have been supplementing their stock eatons with turbo setups for a while now. Why go with a single turbo (or upgraded twins) when N52 supercharger kits are relatively well priced? Obviously it wouldn't be ready-to-run, would require pipe fabrication, and leave some tuners scratching their heads... but in due time I'm sure someone could profit off making a kit. I'm not saying it's the end all for our boost needs, but why isn't it a option?

Best part, peoples reactions when you tell them you have a twin-turbo supercharged N54

https://www.youtube.com/results?sear...compound+boost
Enjoy ^

SINGH_ · 10-31-2014, 03:36 AM

http://www.e90post.com/forums/showthread.php?t=986099

Ingeniator · 10-31-2014, 03:51 AM

Quote:

Originally Posted by N54B30

http://www.e90post.com/forums/showthread.php?t=986099

Because Centri blowers aren't as good as turbos. One centri isn't going to flow enough air. N54 isn't the same cr as N52. So many things wrong with this idea. Not worth the effort.

SINGH_ · 10-31-2014, 04:01 AM

Quote:

Originally Posted by Ingeniator

Because Centri blowers aren't as good as turbos. One centri isn't going to flow enough air. N54 isn't the same cr as N52. So many things wrong with this idea. Not worth the effort.

I think you've misunderstood me, i'm not saying N52 = N54, nor am I suggesting to use a centrifugal as a stand alone. I'm talking about a centrifugal in conjuction with the stock twins...

Aridk · 10-31-2014, 04:26 AM

You are going about it the Wong way

I comented on Fftec's Facebook page that they should call Shiv up again and have him bring over one of those Electric superchagers he use on the ft 86 and put it on a Big single turbo N54. The charger should only work so that one could eleminate turbolag and aid spoolresponse, just like In le-man or F1 cars.
Audi just showede a prototype rs5 TDI couple of month ago where they did it

Ingeniator · 10-31-2014, 04:27 AM

Quote:

Originally Posted by N54B30

I think you've misunderstood me, i'm not saying N52 = N54, nor am I suggesting to use a centrifugal as a stand alone. I'm talking about a centrifugal in conjuction with the stock twins...

Nope understood you fine. I think you don't understand how a compound charging systems works. The tiny blowers on a n52 will not flow enough. They need less air to make the same power because of the compression ratio. You'd have 2-3 times hybrid twins into a compound system that makes Stg 2/RB power.

deeLow · 10-31-2014, 04:50 AM

Also, supers are typically used for low end power until the turbo(s) is spooled and going. Stock/RB's don't have a low end problem.

And it would for sure be a tuning nightmare.

BoostedE90 · 10-31-2014, 07:10 AM

Quote:

Originally Posted by Aridk

Audi just showede a prototype rs5 TDI couple of month ago where they did it

B8 S4

Miller335 · 10-31-2014, 09:04 AM

Keep in mind Audi is a company that calls their supercharged engine "T's" and call their injection system "turbo stratified".

Bunch of goons run that place or something.

10-31-2014, 03:30 AM	#1
SINGH_ N54 E92 51 Rep 342 Posts Drives: 2009 BMW 335i Join Date: Nov 2013 Location: Nor Cal iTrader: (1)	"Compound Boost" - A Supercharged and Bi-Turbocharged N54? Why not keep our stock twins and slap a small centrifugal supercharger into the mix... It's not a new concept, Ford/Terminator guys have been supplementing their stock eatons with turbo setups for a while now. Why go with a single turbo (or upgraded twins) when N52 supercharger kits are relatively well priced? Obviously it wouldn't be ready-to-run, would require pipe fabrication, and leave some tuners scratching their heads... but in due time I'm sure someone could profit off making a kit. I'm not saying it's the end all for our boost needs, but why isn't it a option? Best part, peoples reactions when you tell them you have a twin-turbo supercharged N54 https://www.youtube.com/results?sear...compound+boost Enjoy ^ __________________ Light Bolt-ons, Tunes, & Methanol Injection: 12.30 @ 115mph [2.0 60ft on Street Tires] [91 Octane] 1.59 Seconds Faster than Stock [as of 05/29/2014] Previous Vehicle: '65 Chevelle [LSx 6.0L/4L80e]
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10-31-2014, 03:36 AM	#2
SINGH_ N54 E92 51 Rep 342 Posts Drives: 2009 BMW 335i Join Date: Nov 2013 Location: Nor Cal iTrader: (1)	http://www.e90post.com/forums/showthread.php?t=986099 __________________ Light Bolt-ons, Tunes, & Methanol Injection: 12.30 @ 115mph [2.0 60ft on Street Tires] [91 Octane] 1.59 Seconds Faster than Stock [as of 05/29/2014] Previous Vehicle: '65 Chevelle [LSx 6.0L/4L80e]
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10-31-2014, 04:26 AM	#5
Aridk Lieutenant 7 Rep 520 Posts Drives: 335i Join Date: Jan 2008 Location: Denmark iTrader: (0)	You are going about it the Wong way I comented on Fftec's Facebook page that they should call Shiv up again and have him bring over one of those Electric superchagers he use on the ft 86 and put it on a Big single turbo N54. The charger should only work so that one could eleminate turbolag and aid spoolresponse, just like In le-man or F1 cars. Audi just showede a prototype rs5 TDI couple of month ago where they did it
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10-31-2014, 04:50 AM	#7
deeLow DOPE 148 Rep 758 Posts Drives: F80 Join Date: Jan 2014 Location: Earth iTrader: (2)	Also, supers are typically used for low end power until the turbo(s) is spooled and going. Stock/RB's don't have a low end problem. And it would for sure be a tuning nightmare.
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10-31-2014, 09:04 AM	#9
Miller335 Colonel 291 Rep 2,189 Posts Drives: 2007 E92 Join Date: Oct 2013 Location: Portland, OR iTrader: (0)	Keep in mind Audi is a company that calls their supercharged engine "T's" and call their injection system "turbo stratified". Bunch of goons run that place or something.
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