Just for thought: rear mounted turbo - Page 2 - BMW 3-Series (E90 E92) Forum

MotoMojo · 07-12-2009, 03:40 AM

In addition to the problems with space, loss of steam through the extensive piping, and the fact that you'd add extra lag just by virtue of installing a larger snail, wouldn't the extended piping create a significant amount of added lag? Seems impractical.

GreenPlease · 07-12-2009, 08:34 AM

^

A lot of people seem to miss that, with this idea, the original turbos would remain in place, thus the low end response would remain the same. Back pressure would be roughly equal to the stock exhaust as the additional turbo would simply take the place of a muffler.

hotrod2448 · 07-12-2009, 09:23 AM

So, ignoring the downsides of a rear mounted turbo...how are we getting enough fuel to support these high horsepower levels again?

Morpheus · 07-12-2009, 10:37 AM

Quote:

Originally Posted by hotrod2448

So, ignoring the downsides of a rear mounted turbo...how are we getting enough fuel to support these high horsepower levels again?

ouch, and there it is-the deathblow....

Boost Gomez · 07-12-2009, 03:00 PM

This idea sucks.

dlbrooks18 · 07-23-2009, 09:27 PM

check this vid out, rear mount turbo setup on ISF

hotrod2448 · 07-24-2009, 08:46 AM

Quote:

Originally Posted by dlbrooks18

check this vid out, rear mount turbo setup on ISF

That guy sounds like a tool.

Terrance28 · 07-24-2009, 09:03 AM

He thought rolling the window down with the remote was dope, I guess he never owned a BMW.

oddjob2021 · 07-24-2009, 10:44 AM

Quote:

Originally Posted by dlbrooks18

check this vid out, rear mount turbo setup on ISF

although that set-up seems to be functional it says nothing for an already turbo'd car. let alone one as "cranky" as our dme.

07-12-2009, 03:00 PM	#27
Boost Gomez Colonel Drives: C63 AMG Join Date: Jul 2007 Location: Miami Posts: 2,367 iTrader: (0) Garage List 2007 BMW 335i [0.00]	This idea sucks. __________________

07-24-2009, 09:03 AM	#30
Terrance28 Brigadier General Drives: Crimson Red E92 Join Date: Nov 2007 Location: Killeen, TX Posts: 3,335 iTrader: (17)	He thought rolling the window down with the remote was dope, I guess he never owned a BMW. __________________ Mods list got too long, lets just say more than enough.

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07-12-2009, 03:40 AM	#23
MotoMojo Professional Lounger Drives: A piece Join Date: Jul 2009 Location: Mississippi Posts: 46 iTrader: (0)	In addition to the problems with space, loss of steam through the extensive piping, and the fact that you'd add extra lag just by virtue of installing a larger snail, wouldn't the extended piping create a significant amount of added lag? Seems impractical.

07-12-2009, 08:34 AM	#24
GreenPlease Lieutenant Colonel Drives: BMW 335i e92 Join Date: Feb 2008 Location: Orlando Florida Posts: 1,637 iTrader: (2)	^ A lot of people seem to miss that, with this idea, the original turbos would remain in place, thus the low end response would remain the same. Back pressure would be roughly equal to the stock exhaust as the additional turbo would simply take the place of a muffler.

07-12-2009, 09:23 AM	#25
hotrod2448 grand poobah Drives: E90 335d AW, E70 X5 SG Join Date: Dec 2006 Location: Charlotte, NC Posts: 2,003 iTrader: (0) Garage List 2011 335d [0.00]	So, ignoring the downsides of a rear mounted turbo...how are we getting enough fuel to support these high horsepower levels again?

07-23-2009, 09:27 PM	#28
dlbrooks18 Brigadier General Drives: e90 335i Join Date: Nov 2008 Location: Los Angeles Posts: 3,182 iTrader: (2)	check this vid out, rear mount turbo setup on ISF