[tb30570]

Originally Posted by Jeff@TopGearSolutions

Don't get a WW Kit...... there is a huge risk of fires.

Contact me when your looking to buy; we can answer all your questions and hook you up.

maybe you are right, but I'm having a hard time understanding why. there is already -20 degree washer fluid under my hood. is the increase of the risk of fires due to the additional joints that could potentially leak?

I said it earlier but I used to work for a shop and we regularly washed off hot engines with -20 degree washer fluid. I did see a fire once, but we are talking gallons of washer fluid. It can ignite, but not very easily. Is it really that common for washer fluid to start on fire in water injection kits?

[tb30570]

If I wanted to stick to a budget of around $1500, what would you remove from the list or downgrade?

JB4 PNP (N54 Stage 3) plus BMS USB Cable combo - $509
VRSF Front Mount Intercooler FMIC Kit 335 N54 E90 - $410
BMS N54 Chargepipe - $229
Evolution Race Werks N54 (3.0TT) Forge Motorsports Diverter Valve Kit - $325
BMS WW Quick Install Meth Kit w/ JB4 FSB Integration - $479
VRSF 3" Downpipe - $385
Remove CDV - $0 (http://www.e90post.com/forums/showthread.php?t=29828)
total - $2337

[HellsBells]

Originally Posted by tb30570

I could stiffen the rear suspension to reduce weight transfer during launch, but a stiffer rear suspension would induce oversteer. This is my winter car....I don't want to increase oversteer. I could stiffen all around, but I imagine ride quality will go to hell. I already have one car with mostly race suspension parts and ride quality is really really bad.

I would say that there is quite a bit of research here for a pretty good setup, I guess it depends on your definition of "really really bad". Mine feels very responsive and is fine for a daily driver. Stock on the XI just didn't feel like a performance BMW to me.

[Marcadelic]

Originally Posted by tb30570

JB4 PNP (N54 Stage 3) plus BMS USB Cable combo - $509
Big Tom FMIC Kit 335 N54 E90 - $150
BMS WW Quick Install Meth Kit w/ JB4 FSB Integration - $479
VRSF 3" Downpipe - $385
Remove CDV - $0 (http://www.e90post.com/forums/showthread.php?t=29828)
total - $1493
I don't know anything about BMW's so any other suggestions would be appreciated.

thats what I would do.

Wait on the cp and dv's, and move the ww kit to a trunk kit, much safer.

install on all this is going to probably be more than parts though lol

unless you're doing the work yourself

[Jnat]

09xi JB4G5 ISO Dci and secondary kittyless is strong. Just tried E85, never would have thought the JB4G5 could do what it does with the E but wow!

[tb30570]

Originally Posted by Marcadelic

thats what I would do.

Wait on the cp and dv's, and move the ww kit to a trunk kit, much safer.

install on all this is going to probably be more than parts though lol

unless you're doing the work yourself

I searched for a source for the KL Racing (Big Tom) intercooler, but couldn't find one. What's the web address where I could buy it?

I should be able to do the mods myself as long as I don't have to weld any exhaust. I have a welder, but I'm just not very good at welding. I haven't done tuning myself before, so I could have questions, but that's what the forum is for.

[sickem]

Originally Posted by tb30570

I'm new to BMW but not boosting. If the N54 can support E85 w/o any modification to the fuel system (injectors/high capacity pump), that's great but surprising. I would have had to go to 100# injectors on my LS1 and run dual pumps ($1400 in pumps) to support E85. On my Ecotec, the pump could handle it but I would have had to switched over to 80# injectors. If I went back to gasoline on either cars, it required a tune change. And winter E85 has a different % of ethanol than summer, so the E85 tune is just rich in the winter time.

What's the difference between the JB4 and Cobb Stage 1+ programmers? The price difference isn't small. Cobb runs $1,715 while JB4 runs $509. Cobb Accesstuner Pro (AP) is $3k. Cobb AP and "335xi Performance Bang for the Buck" shouldn't be in the same thread.

Lol Cobb for $1715???? Are you factoring in cost of a protune or something? They retail for $895 but are sold by vendors on here for much, much less. Also you want access tuner race (atr), not pro. Atr is free.

[Marcadelic]

Originally Posted by tb30570

I searched for a source for the KL Racing (Big Tom) intercooler, but couldn't find one. What's the web address where I could buy it?

I should be able to do the mods myself as long as I don't have to weld any exhaust. I have a welder, but I'm just not very good at welding. I haven't done tuning myself before, so I could have questions, but that's what the forum is for.

http://item.mobileweb.ebay.com/viewi...d=250858634871

You just need to buy the piping somewhere else

[tb30570]

Originally Posted by Marcadelic

http://item.mobileweb.ebay.com/viewi...d=250858634871

You just need to buy the piping somewhere else

Ohhh, CX Racing from EBay. I put a 2ndary CX Racing heat exchanger on my LSJ. Got it on EBay too. I also added a surge tank and dual pass end plate....I made a diagram for that one:



Anyway, I found the build instructions on another forum.
http://www.n54tech.com/forums/showthread.php?t=10144

[Marcadelic]

Originally Posted by tb30570

Ohhh, CX Racing from EBay. I put a 2ndary CX Racing heat exchanger on my LSJ. Got it on EBay too. I made a diagram for that one:



Anyway, I found the build instructions on another forum.
http://www.n54tech.com/forums/showthread.php?t=10144

Ya it's pretty straight forward, a buddy and me did mine

[tb30570]

I took my 335xi out for a baseline pass last night. It was a pretty suck-ass night because right before I got there somebody dropped oil the entire length of the track. (if you start dropping oil, please use your brakes!)

Because of that cluster, I only got two runs in. I don't know if I really got launching this car down or not but I ran a 14.4x.

Seems like if you try to drop the clutch at about 3k, the DTC keeps anything from happening for a long time. Do programmers let you actually completely turn off traction control?

[Tommeh]

I honestly wouldn't get meth again unless it was the Aqua mist HSF4 kit. Thinking about selling my Cooling Mist kit.

[tb30570]

Originally Posted by Tommeh

I honestly wouldn't get meth again unless it was the Aqua mist HSF4 kit. Thinking about selling my Cooling Mist kit.

why?

[tb30570]

Trunk mounted vs. washer-fluid-reservoir.....

I really don't want an ugly tank in my trunk. I'm already going to have a (2) 12" subwoofer box eating up trunk space.

Help me understand why there is such a huge risk of fire using the washer-fluid-reservoir with plain old winter washer fluid in it. Even if I put a tank in the trunk, the washer-fluid-reservoir is still going to be under the hood with the same semi-flammable liquid in it. How does using the washer-fluid-reservoir for two purposes increase the risk of fire?

[j1gilles]

It doesnt.... Especially if you are just running -20 fluid. I went with the JB4 G5 iso, meth, BMS DCI, ER CP and borla mids on my xi. Im able to run mid 12's with a couple gallons of e85 (off meth) and put down a little over 400 whp (on boost juice) for sround 1k in total money spent.

[tb30570]

Originally Posted by j1gilles

It doesnt.... Especially if you are just running -20 fluid.

I'm just going to go with the "BMS WW Quick Install Meth Kit w/ JB4 FSB Integration" then. This is my daily driver and I don't want to mess around with meth mixing or E85 mixing.

So with the IC, DP, WW Injection, tune and 93 octane E10 how much wheel power would you estimate? 370whp? 420hp @ the crank? I could live with that

[Wedge1967]

Originally Posted by tb30570

I'm just going to go with the "BMS WW Quick Install Meth Kit w/ JB4 FSB Integration" then. This is my daily driver and I don't want to mess around with meth mixing or E85 mixing.

So with the IC, DP, WW Injection, tune and 93 octane E10 how much wheel power would you estimate? 370whp? 420hp @ the crank? I could live with that

I should have looked you up, I was in town two weeks back for work. Welcome to the forum and the N54 family.

I have to admit, after reading some of your posts you have a bit to learn about this platform. Not saying you need to throw out everything you know, but a DI Turbo car is a bit different.

As much as I like the gauge hijacking from the JB or PROcede piggy backs, I think you'll find today the COBB @ $750 is one of the best ways to tune your n54. With @ e30, you'll make as much if not more power than you will with e10 and -20 washer fluid injection. DI really takes advantage of the cooling effect Ethanol has on the cylinder. If you really want to drop AIT's and kick timing to 16+ deg, go with the Aquamist trunk mount and run 100% methanol. One thing you'll find is this platform responds really well to meth injection.

Just to clarify, I currently run PROcede with 100% e85 and 100% meth and put down over 450 whp and over 500 wtq. So why do I recommend COBB and Aquamist? I have three friends that have all ran JB in the past who are now running COBB. Logs look better and all three enjoy the smooth power delivery the COBB provides.

So, regardless of what direction you go with your tune, you'll truly enjoy this platform as it has so much potential. Good luck.

[NEVER ENUF]

Originally Posted by tb30570

I took my 335xi out for a baseline pass last night. It was a pretty suck-ass night because right before I got there somebody dropped oil the entire length of the track. (if you start dropping oil, please use your brakes!)

Because of that cluster, I only got two runs in. I don't know if I really got launching this car down or not but I ran a 14.4x.

Seems like if you try to drop the clutch at about 3k, the DTC keeps anything from happening for a long time. Do programmers let you actually completely turn off traction control?

Definitely have work to do on your launch. Car should run mid 13's stock. I have the same car and at 6000' altitude I went 13.9, stock. The traction control can be completely turned off, you need to hold down the DTC button for 3-5 seconds and it will completely turn off. Should be good for low 1.9 to high 1.8 60 foots stock.

I would do some more reading on here before you start purchasing, there is a bunch of good info. Also can find some great deals in the for sale section. I have been modifying high horsepower turbo cars for years...and this platform forced me to relearn some things. Mainly, the direct injection system throws out what you know about fuel management. Hence the reason you can use E85 mixes relatively easily. Injectors by standards you are used to aren't relevant on this platform. Good luck on your quest for more power, it's relatively easy to come by...

[amclint]

My car is setup as such right now:

Used JB4 G5 ISO $450
Used DCI: $60
Used Cobb AP: $650
BMS Flash Map: Free

I run map 7, very nice logs and the car is a monster. I do use the Cobb to load the BMS flash map to change the timing, takes full advantage of the E85 mix. I tried the E30 map and it's not as powerful as map 7, but it's probably better for the turbos

So far full weight is 12.0 @ 117 mph on a 1.85 60', very consistent until heat soak after 4-5 runs but that's to be expected with the stock FMIC.

Very satisfied, car is a great DD and is super fast to return to stock if desired. If I have the car after this summer, I'll probably put the DP and FMIC back in as well as the Meth kit I have.

[j1gilles]

mykal335xi-Im about where you are on the mod list and I would like to include a BMS flash map soon (looking for a cheap used cobb ap) and I was wondering how exactly it works? I would still use my JB4 to control maps/boost/meth and the cobb would just add to the overall tune by adjusting timing and fuel correct?

[tb30570]

Originally Posted by NEVER ENUF

The traction control can be completely turned off, you need to hold down the DTC button for 3-5 seconds and it will completely turn off. Should be good for low 1.9 to high 1.8 60 foots stock.

That's good to know! I'll try that out. I bet it will make a huge difference!

[tb30570]

Originally Posted by Wedge1967

As much as I like the gauge hijacking from the JB or PROcede piggy backs, I think you'll find today the COBB @ $750 is one of the best ways to tune your n54.

I'm not interested in mixing ethanol in fuel or methanol in washer fluid. I know it could make more power if I did it, but it sounds like a pain in the ass. There are few a stations in town that sell E85, and they are all in areas I never go to. I've had to drive 10 miles out of my way just to pick it up. I could spike -20 washer fluid with Heat pretty easily, but if it means having an ugly tank taking up space in my trunk, I'd rather not.

Assuming I just run -20 washer fluid, would you still recommend the COBB over the JB4? If so, why?

When I go on the COBB web site, they list the Access Port at $895.
http://www.cobbtuning.com/BMW-N54-Ac...ap-bmw-001.htm
Who sells it for $750?