Best Performance Gains Ever

FFIskyview · 05-26-2015, 12:47 PM

Just wanted to share a few thoughts: I bought my 335i a few months back and loved it immediately. The sound, the look, and, my, did it have some pep down low and through the mid range. It did start to fall off pretty rapidly toward the redline, so I thought, Okay lets see what kind of gains can be made.

Before a tune or any other performance enhancing drugs, I replaced the coils, plugs, thermostat/waterpump, oil, and had a local shop walnut blast the intake.

The butt dyno tells me I picked up some significant power gains from just doing regular maintenance! I'd venture a guess at a 10-20% power increase. The biggest difference was from about 5-7k RPM where the previously disappointing power drop-off was now nearly negligible.

To be fair, the shop told me that the car had probably never been blasted and was pretty bad. I'm nearly positive that I was on the original plugs/coils. Moral? Before slapping on a tuner, do your maintenance first!

sirdaft1 · 05-26-2015, 01:51 PM

If you thought those gains were good, just wait until you start throwing a tune, DP's, FMIC, e85 in her

Snypa · 05-26-2015, 09:41 PM

+1 ^^ DP is gonna be your best friend !!

thkfast · 05-26-2015, 11:56 PM

FFI, how many miles on your 335i?

idrift4wd · 05-27-2015, 12:14 AM

10-20% increase would be a 30-60 hp. lol

n54gte · 05-27-2015, 12:16 AM

load up the bms pump flash too if ya got jb4

Jnat · 05-27-2015, 05:33 AM

Quote:

Originally Posted by idrift4wd

10-20% increase would be a 30-60 hp. lol

Thank u

Jaronbwall · 05-27-2015, 08:32 AM

Looking to go a similar route with my car since I just purchased it. I'm sure intakes are nasty and plugs are junk as well.

ATLIEN · 05-27-2015, 08:34 AM

Sweet.

K19BMW · 05-27-2015, 08:49 AM

You absolutely did not increase your power anywhere close to 20%

MMMCOOKIES55 · 05-28-2015, 07:05 AM

I wish more people would think like that. I get people in all the time that just bought an N54 and the first thing they want to do is a JB4. Nevermind the fact that I just found two oil leaks, it needs a water pump, spark plugs are original, blah blah blah. Kudos to you sir!

Welterweight · 05-28-2015, 07:12 AM

I did the Cobb first then once misfires began I replaced the plugs, coils, injectors, and got blasted. Just had no idea how old they were as I got car used from BMW Newport.

spxxx · 05-28-2015, 03:45 PM

Quote:

Originally Posted by K19BMW

You did absolutely not increase you power anywhere close to 20%

There are dynos of N54s gaining about 25whp+ in certain RPM regions from just a walnut blast...

Think about what it's doing, it's like adding a bigger inlet to the turbo or opening any bottleneck as the valves aren't flowing anywhere near OEM when caked full of deposits...

Btw, pick up an MHD for like $200 and you'll gain another 75hp... lol

IMO best order for mods/work:
- Regular maintenance (plugs, coils, walnut blast)
- Tune
- LSD
- FMIC
- DPs

mike@x-ph.com · 05-28-2015, 03:47 PM

Quote:

Originally Posted by sirdaft1

If you thought those gains were good, just wait until you start throwing a tune, DP's, FMIC, e85 in her

+1

FFIskyview · 05-28-2015, 08:43 PM

Thanks for the kind words and support folks. Car has 73k on the clicker, so It was ovedue for sure.

Can't wait to get her out again for some spirited driving.

05-26-2015, 12:47 PM	#1
FFIskyview New Member 0 Rep 14 Posts Drives: Alpine White e92 Join Date: Mar 2015 Location: Iowa iTrader: (0)	Best Performance Gains Ever Just wanted to share a few thoughts: I bought my 335i a few months back and loved it immediately. The sound, the look, and, my, did it have some pep down low and through the mid range. It did start to fall off pretty rapidly toward the redline, so I thought, Okay lets see what kind of gains can be made. Before a tune or any other performance enhancing drugs, I replaced the coils, plugs, thermostat/waterpump, oil, and had a local shop walnut blast the intake. The butt dyno tells me I picked up some significant power gains from just doing regular maintenance! I'd venture a guess at a 10-20% power increase. The biggest difference was from about 5-7k RPM where the previously disappointing power drop-off was now nearly negligible. To be fair, the shop told me that the car had probably never been blasted and was pretty bad. I'm nearly positive that I was on the original plugs/coils. Moral? Before slapping on a tuner, do your maintenance first! __________________ 2007 BMW 335i [e92] 2005 *Nissan Titan* 1982 *Porsche 928* In projeckt car limbo 2005 *Audi A4[b6]* Sold 1995 *Lexus SC300* Sold
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05-26-2015, 01:51 PM	#2
sirdaft1 Brigadier General 2203 Rep 3,336 Posts Drives: X5 & E90 WTCC Widebody Racecar Join Date: Feb 2013 Location: Chicago West Burbs iTrader: (9) Garage List 2007 E90 WTCC Wideb ... [9.50] 2012 BMW X5 xDrive35i [9.00]	If you thought those gains were good, just wait until you start throwing a tune, DP's, FMIC, e85 in her
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05-26-2015, 09:41 PM	#3
Snypa Captain 37 Rep 656 Posts Drives: Like a mahdman ! Join Date: May 2013 Location: I-75 iTrader: (3)	+1 ^^ DP is gonna be your best friend !! __________________ SUPER SLOW E90
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05-26-2015, 11:56 PM	#4
thkfast Major 261 Rep 1,029 Posts Drives: 2015 F82 M4 Sakhir Orange DCT Join Date: Mar 2009 Location: Cedar Rapids, IA iTrader: (1)	FFI, how many miles on your 335i? __________________ "The likelihood of one individual being right increases in direct proportion to the intensity with which others attempt to prove him wrong." 2015 F82 M4 - Sakhir Orange Metallic 2013 E92 M3 / 2013 E92 335is / 2010 E90 335i / 2007 E90 335i
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05-27-2015, 12:14 AM	#5
idrift4wd Brigadier General 149 Rep 3,552 Posts Drives: Three Hundred and Thirty Five Join Date: Jul 2010 Location: Yonkers NY iTrader: (0) Garage List 2007 BMW [7.00]	10-20% increase would be a 30-60 hp. lol __________________ 12.0 @ 117
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05-27-2015, 08:32 AM	#8
Jaronbwall Driving cars and riding bikes really fast 285 Rep 1,001 Posts Drives: 2009 335i Join Date: Sep 2014 Location: Indianapolis iTrader: (0)	Looking to go a similar route with my car since I just purchased it. I'm sure intakes are nasty and plugs are junk as well. __________________ 335i, sport pkg, 3 pedals, Blacked out, LED markers, OZ Ultraleggera wheels, Firestone Indy 500s, x-pipe, vibrant 1792, PE mod MHD stage 2+, BMS DPs, ARM charge pipe, Tial BOV, ARM FMIC, dual cone, CSF radiator, M3 control arms, sways, HAWK pads. https://www.strava.com/athletes/8309149 Follow me on Strava
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05-27-2015, 08:34 AM	#9
ATLIEN Captain 549 Rep 791 Posts Drives: 08 335i & 11 M3 ZCP Join Date: Jun 2013 Location: Greenville, SC iTrader: (0)	Sweet.
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05-27-2015, 08:49 AM	#10
K19BMW Lieutenant 110 Rep 441 Posts Drives: 2008 335xi sedan Join Date: Sep 2013 Location: Boston, MA iTrader: (3) Garage List 2008 BMW 335xi sedan [0.00]	You absolutely did not increase your power anywhere close to 20% __________________ 2008 335xi Sedan in Monaco Blue/Beige Dakota Leather/Cold Weather/Premium Package/ Navigation/ Logic7 Alpina B3 Flash, JB4 G5, BMS DCI, BMS OCC, VRSF DP, VRSF 7" FMIC, 30% tint, matte black kidney grills, paint matched e90 spoiler, paint matched front splitter, black finishing rods, BMW OEM Blacklines, Cyba air scoops, powder coated matte black wheels, Koni + Eibachs, more to come. Last edited by K19BMW; 05-29-2015 at 11:04 AM..
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05-28-2015, 07:05 AM	#11
MMMCOOKIES55 Major 350 Rep 1,376 Posts Drives: '17 M3 ZCP/ '16 ATS-V Join Date: Oct 2009 Location: Apex, NC iTrader: (3)	I wish more people would think like that. I get people in all the time that just bought an N54 and the first thing they want to do is a JB4. Nevermind the fact that I just found two oil leaks, it needs a water pump, spark plugs are original, blah blah blah. Kudos to you sir!
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05-28-2015, 07:12 AM	#12
Welterweight Major 98 Rep 1,321 Posts Drives: Truck in snow, coupe in summer Join Date: Jan 2013 Location: Boston iTrader: (3) Garage List 2012 BMW 328i [0.00] 2005 Dodge Ram Quad ... [0.00] 2009 BMW 335xi E92 [10.00]	I did the Cobb first then once misfires began I replaced the plugs, coils, injectors, and got blasted. Just had no idea how old they were as I got car used from BMW Newport.
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05-28-2015, 08:43 PM	#15
FFIskyview New Member 0 Rep 14 Posts Drives: Alpine White e92 Join Date: Mar 2015 Location: Iowa iTrader: (0)	Thanks for the kind words and support folks. Car has 73k on the clicker, so It was ovedue for sure. Can't wait to get her out again for some spirited driving.
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