N55 5" CPE Downpipe Dyno - BMW 3-Series (E90 E92) Forum

Mike@N54Tuning.com · 01-16-2013, 02:42 PM

N55 JB4 ISO, BMS intake, and around 50% E85 and the CPE 5" DPs

Peak power gains were around 12whp with as much as 25whp in areas under the curve. Peak torque gains were around 20wtq with as much as 40wtq in areas under the curve.

CombatNinja · 01-16-2013, 04:42 PM

Good results in terms of area under the curve.

What is that dip in power above 6000 rpms for both runs with the downpipe?

mashimarho · 01-16-2013, 08:04 PM

How come the 135 with the ISO JB4 had 389 whp and 470 WTQ?

Mike@N54Tuning.com · 01-16-2013, 09:07 PM

Quote:

Originally Posted by CombatNinja

Good results in terms of area under the curve.

What is that dip in power above 6000 rpms for both runs with the downpipe?

They were doing some fuel pressure tuning at that RPM during the runs.

Mike

Mike@N54Tuning.com · 01-16-2013, 09:07 PM

Quote:

Originally Posted by mashimarho

How come the 135 with the ISO JB4 had 389 whp and 470 WTQ?

It has an intercooler and the DCT puts more power to the ground vs. the steptronic. The 135i also has half the miles.

Mike

mashimarho · 01-16-2013, 09:11 PM

Quote:

Originally Posted by Mike@N54Tuning.com

It has an intercooler and the DCT puts more power to the ground vs. the steptronic. The 135i also has half the miles.

Mike

I see... Thanks!
Also, real quick... What the best amount of e85 to use on my 2012 e92 335xi N55.
Jb4 stg 2, BMS dp, BMS intake, exhaust, ER cp.
Most likely running map 5.

No ISO mod yet, I don't know of that will affect it.
But, I've been doing 40/60... e85/93 octane.

Intercooler soon. Maybe 50/50?

Sam335ix · 01-16-2013, 09:35 PM

Quote:

Originally Posted by mashimarho

I see... Thanks!
Also, real quick... What the best amount of e85 to use on my 2012 e92 335xi N55.
Jb4 stg 2, BMS dp, BMS intake, exhaust, ER cp.
Most likely running map 5.

No ISO mod yet, I don't know of that will affect it.
But, I've been doing 40/60... e85/93 octane.

Intercooler soon. Maybe 50/50?

3 gallons and map 2.. E85 harness you should be able to go 50/50 but I would alternate every 2 fill ups works straight up 93 octane. 50/50 mix with map5, I run map 7 at times.

mashimarho · 01-16-2013, 11:20 PM

Quote:

Originally Posted by Sam335ix

3 gallons and map 2.. E85 harness you should be able to go 50/50 but I would alternate every 2 fill ups works straight up 93 octane. 50/50 mix with map5, I run map 7 at times.

Yes, I have the e85 harness adapter. So, I will probably be able to go 50/50 on map 5 and 7.
What do you mean when you say alternate every 2 fill ups works straight up 93 octane?

TomasKub · 01-16-2013, 11:43 PM

Are downpipes a part of the exhaust system? If i bought a new exhaust system would downpipes come with it? Or can any downpipe fit any exhaust system?

CombatNinja · 01-17-2013, 05:14 AM

They are technically part of the exhaust but no system is going to include the downpipes. They all use stock mounting points and hardware so there is no issue mating them up.

Sam335ix · 01-17-2013, 11:11 AM

Quote:

Originally Posted by mashimarho

Yes, I have the e85 harness adapter. So, I will probably be able to go 50/50 on map 5 and 7.
What do you mean when you say alternate every 2 fill ups works straight up 93 octane?

I mean not to go 50/50 on every fill up. One or two times of 50/50 fill up and then flush it out with one or two fill ups of straight 91/93 (whichever available in your area).

mashimarho · 01-17-2013, 11:16 AM

Quote:

Originally Posted by Sam335ix

I mean not to go 50/50 on every fill up. One or two times of 50/50 fill up and then flush it out with one or two fill ups of straight 91/93 (whichever available in your area).

Thanks for clearing that up. You run map 7 on 50/50 as well? Isn't map 7 race gas? 100+ octane? How is that compared to map 5 (other than boost levels).

Sam335ix · 01-17-2013, 11:34 AM

Quote:

Originally Posted by mashimarho

Thanks for clearing that up. You run map 7 on 50/50 as well? Isn't map 7 race gas? 100+ octane? How is that compared to map 5 (other than boost levels).

Map7 is for race gas but I figure since e85 and 93 mix should increase the octane level then why not try it once in a while. Map 7 runs great with even better turbo feedback and car feels even quicker than map5. The ISO and e85 has made the acceleration, less turbo lag and torque a lot more noticable.

mashimarho · 01-17-2013, 11:40 AM

Quote:

Originally Posted by Sam335ix

Map7 is for race gas but I figure since e85 and 93 mix should increase the octane level then why not try it once in a while. Map 7 runs great with even better turbo feedback and car feels even quicker than map5. The ISO and e85 has made the acceleration, less turbo lag and torque a lot more noticable.

Hmm.... I will try it out. I guess it can't hurt. Can't wait for the ISO mod too!

Sam335ix · 01-17-2013, 02:48 PM

Quote:

Originally Posted by mashimarho

Hmm.... I will try it out. I guess it can't hurt. Can't wait for the ISO mod too!

What are you waiting for?

mashimarho · 01-17-2013, 03:40 PM

Quote:

Originally Posted by Sam335ix

What are you waiting for?

Warmth.

Sam335ix · 01-17-2013, 04:19 PM

Quote:

Originally Posted by mashimarho

Warmth.

Lol I understand.

01-16-2013, 02:42 PM	#1
Mike@N54Tuning.com BimmerPost Supporting Vendor Drives: 07335i Join Date: Dec 2008 Location: Earth Posts: 12,213 iTrader: (77)	N55 5" CPE Downpipe Dyno N55 JB4 ISO, BMS intake, and around 50% E85 and the CPE 5" DPs Peak power gains were around 12whp with as much as 25whp in areas under the curve. Peak torque gains were around 20wtq with as much as 40wtq in areas under the curve. __________________ Lowest Price GUARANTEED on ALL PRODUCTS!! JB4 G5 On Sale - FREE Shipping Click Me - NEW JB4(N55) & DCI's $95.00 NEW F30-328 N20 Tune(Stage1) BMS Oil Catch Can (On Sale)
	Tweet

01-16-2013, 08:04 PM	#3
mashimarho Boss Drives: e92 LCI 335i xDrive™ Join Date: Mar 2010 Location: Grand Rapids, michigan Posts: 5,718 iTrader: (27) Garage List 2012 BMW 335i xDrive [5.00]	How come the 135 with the ISO JB4 had 389 whp and 470 WTQ? __________________ -Sean. 360 FORGED///DynamikiLLu51ions///ER///BMS///KW///VRSF///ARKYM///DD///CYBA///STOPTECH///BMW Performance /// My Progress: http://www.e90post.com/forums/showthread.php?t=770326

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

01-16-2013, 04:42 PM	#2
CombatNinja Defender of the Universe Drives: e91 328i, e90 328i, e90 335i Join Date: Feb 2011 Location: United States Posts: 1,031 iTrader: (0)	Good results in terms of area under the curve. What is that dip in power above 6000 rpms for both runs with the downpipe?

01-16-2013, 11:43 PM	#9
TomasKub New Member Drives: 2007 BMW 335i Join Date: Jan 2013 Location: Las Vegas, NV Posts: 9 iTrader: (0)	Are downpipes a part of the exhaust system? If i bought a new exhaust system would downpipes come with it? Or can any downpipe fit any exhaust system?

01-17-2013, 05:14 AM	#10
CombatNinja Defender of the Universe Drives: e91 328i, e90 328i, e90 335i Join Date: Feb 2011 Location: United States Posts: 1,031 iTrader: (0)	They are technically part of the exhaust but no system is going to include the downpipes. They all use stock mounting points and hardware so there is no issue mating them up.