[tb30570]

I'm planning on the following mods:
1) Intercooler
2) WWF Injection
3) Catless Downpipe
4) Tune

1) Intercooler:
I'm looking at the CXRacing model on ebay. I'm trying to put together a Bill-of-Material. I found all these parts on ebay (only domestic sellers with ratings >99%). Are they more cost effective somewhere else?
(1) CXRacing Turbo Intercooler BMW E90 E92 335i N54 07-10 - $169
(1) 4-PLY 2.5'' x 6" STRAIGHT COUPLER SILICONE HOSE - $25
(1) 10 x 2.5" (2.63"-2.95") Stainless Steel T-Bolt Clamps - $18
(1) 2.5" to 3" 45 degree reducer silicone hose black - $15
(2) Aluminum Pipe Joiner, Silicone Hose adapter 2 1/2" 2.5" -$12 x 2
(1) 2.5" to 3" Fujita Silicone Straight Reducer Coupler Hose - $8
(1) 2PCS 3"/76mm Turbo Silicone Hose T-Bolt Clamp 83mm-91mm - $6
(1) Black ID 2.5" 63mm 2-1/2" Straight Silicone Hose Intercooler - $7
total - $272
Am I missing anything?

2) WWF Injection:
Does anybody sell an engine bay WWF kit besides BMS ($479)? (if one more person tells me WWF is extremely flammable, I'm going to scream!) If I get the JB4, I can buy a WWF kit made to integrate. If I buy a Cobb, how difficult is it to integrate the WWF kit? Can I get by without an aftermarket charge pipe by adding fittings to the OEM charge pipe or does that typically cause problems?

3) Catless Downpipe:
Is this my most cost effective option?
VRSF 3" Downpipe - $385

4) Tune:
Biggest question is JB4 vs. Cobb AP. It sounds like Cobb AP is more powerful software, but I'm not sure I need it for the mods I'm planning. I'm not going to run meth (just WWF) and I'm not going to run and ethanol mix (just E10 93-octane). I guess the Cobb has a lot better logging....I've never done tuning myself before so the significance of better logging is lost on me. It sounds like integration of a WWF injection system may not be plug-and-play with the Cobb AP vs. the JB4....is that right?
JB4 - $510
Cobb AP - $800

If I go with the JB4 and other mods listed above, I'm looking at about a $1646 investment.

[E90Company]

COBB, Aquamist HFS-4 trunk meth kit (not WW kit), BMS downpipes (roughly the same price, better quality). The CX is fine but there are more efficient cores if you spend a bit more. I'd also look into a charge pipe with meth bungs rather than tapping your stock one or using an elbow. You will also want a better clutch with E85/meth.

[tb30570]

Originally Posted by E90Company

COBB, Aquamist HFS-4 trunk meth kit (not WW kit), BMS downpipes (roughly the same price, better quality). The CX is fine but there are more efficient cores if you spend a bit more. I'd also look into a charge pipe with meth bungs rather than tapping your stock one or using an elbow. You will also want a better clutch with E85/meth.

why COBB? there is a significant cost difference, please explain what the significant benefit is.

As I stated before, I'm not going to run meth, just -20°F WWF. I'm not going to put any kind of tank in my trunk. If a trunk mounted tank was my only option, I wouldn't even consider WWF injection. What's better about mounting in the trunk anyway? Takes up space in the trunk where luggage could be and it looks ugly as hell.

I can't find a BMS downpipe for a N54 335xi. I'm not sure they make one.

Are there problems that typically occur with tapping the stock charge pipe? Do the joints often fail? If so, I could get one from BMS for not a ton of money.
BMS N54 Chargepipe - $229

As I stated before, I'm not going to run any ethanol mix. What a pain in the ass that would be driving 10-15 miles out of my way just to get some ethanol. I'm only going to buy E10 93-octane that I can get at any Shell or Cenex station in town.

Since I'm not going to run ethanol mix or meth, the torque output isn't going to be crazy. How much torque can the OEM clutch handle before excessive slipping?

[E90Company]

Originally Posted by tb30570

why COBB? there is a significant cost difference, please explain what the significant benefit is.

As I stated before, I'm not going to run meth, just -20°F WWF. I'm not going to put any kind of tank in my trunk. If a trunk mounted tank was my only option, I wouldn't even consider WWF injection. What's better about mounting in the trunk anyway? Takes up space in the trunk where luggage could be and it looks ugly as hell.

I can't find a BMS downpipe for a N54 335xi. I'm not sure they make one.

Are there problems that typically occur with tapping the stock charge pipe? Do the joints often fail? If so, I could get one from BMS for not a ton of money.
BMS N54 Chargepipe - $229

As I stated before, I'm not going to run any ethanol mix. What a pain in the ass that would be driving 10-15 miles out of my way just to get some ethanol. I'm only going to buy E10 93-octane that I can get at any Shell or Cenex station in town.

Since I'm not going to run ethanol mix or meth, the torque output isn't going to be crazy. How much torque can the OEM clutch handle before excessive slipping?

Sorry, kind of quickly skimmed your post and replied.

COBB is a flash tune so the DME has full control and knowledge of everything going on in present time. Piggy's such as JB4 and Procede use biasing methods to trick the DME into adding boost/fuel/etc, not really an ideal method of tuning. The JB4 also runs stock timing with the increased boost, too agressive for most cars even on their lowest power "map", and leads the car to pull timing by riding on the knock sensor to prevent detonation. The piggy's also require a flash tune to be working in conjunction with them at higher power levels/e85, because the piggy's alone can't keep up with fuel demand (you can only bias so much). Again, people will debate this stuff for years and it really gets old, alot of this information can be found if you search a bit more. Cost difference is a few hundred I think, but you get AccessTunerRACE with a COBB for free, giving you the ability for you to make custom maps.

That said, sounds like you are wasting your time with WWF injection. I would skip it in your application.

Stock charge pipes are plastic with plastic weldings, so they are unreliable at increased boost levels. Dousn't matter what pipe you get, they all do the same thing.

You are right, they don't make XI pipes. Go with AR design pipes.

I understand about not running E85. I don't either and make close to or at 400whp on 93 octane.

You will be fine on stock clutch then.

You are also Xi so you have alot more weight and drivetrain loss than RWD cars. Keep this in mind.

[deathbunny]

Used cobbs go on sale here all the time for right around 650 shipped.

[tb30570]

Originally Posted by E90Company

The JB4 also runs stock timing with the increased boost, too aggressive for most cars even on their lowest power "map", and leads the car to pull timing by riding on the knock sensor to prevent detonation.

I understand about not running E85. I don't either and make close to or at 400whp on 93 octane.

Ok, you talked me into it. Reactively adjusting the timing doesn't seem like a great method. I'll go with Cobb AP.

Deducting WWF should save some $ and maybe I'll be able to fool tech into thinking it's still stock. The big IC might give it away though.

With the CXRacing IC, 3" catless downpipes and Cobb AP tune, what kind of power do you think it would make on 93 octane E10? 370awhp?

[tb30570]

what type of brackets are typically used to mount the CXRacing IC?

Strap, angle or tubing and what dimensions?

[foghat]

with the money you are saving by not getting meth, why not get one of the IC that basically bolt right in (save maybe some shroud trimming)?

[tb30570]

Originally Posted by foghat

with the money you are saving by not getting meth, why not get one of the IC that basically bolt right in (save maybe some shroud trimming)?

I already purchased the CXRacing IC.

Just bought a used Cobb AP too.

[E90Company]

Originally Posted by tb30570

Ok, you talked me into it. Reactively adjusting the timing doesn't seem like a great method. I'll go with Cobb AP.

Deducting WWF should save some $ and maybe I'll be able to fool tech into thinking it's still stock. The big IC might give it away though.

With the CXRacing IC, 3" catless downpipes and Cobb AP tune, what kind of power do you think it would make on 93 octane E10? 370awhp?

On the OTS maps, I would say 360-370awhp. With a good protune, probably just under 400aw. (Dynojet)

[tb30570]

Originally Posted by E90Company

On the OTS maps, I would say 360-370awhp. With a good protune, probably just under 400aw. (Dynojet)

I'm going to have somebody help me with the tune. He's taken classes on HPTuners which I'm sure it pretty different, but he should have more of a clue than I do. He's tuned EcoBoosts which are also DI and TT.

We used to have an AWD dyno in town, but they just went out of business a few months ago. Owner skipped town with a bunch of unpaid bills and took his dyno with him. Closest to me now is probably in Chicago.

[E90Company]

Originally Posted by tb30570

I'm going to have somebody help me with the tune. He's taken classes on HPTuners which I'm sure it pretty different, but he should have more of a clue than I do. He's tuned EcoBoosts which are also DI and TT.

We used to have an AWD dyno in town, but they just went out of business a few months ago. Owner skipped town with a bunch of unpaid bills and took his dyno with him. Closest to me now is probably in Chicago.

Shouldn't have too much of a problem as long as you reference the OTS tables as a starting point and make minor adjustments. He will know what he's doing I'm sure. Good luck with everything.

[RnmEvo9]

Originally Posted by E90Company

I don't either and make close to or at 400whp on 93 octane.