[Wedge1967]

There is nothing wrong with the JB4 and trunk mounted meth. After running multiple tunes, I think you'll find flash tuning with Aquamist HFS-4 is a better way to go for a reliable daily driver. Most of the posts telling you to go with JB are from new members and they probably don't know much about flash tuning and have only ran the JB. Yes, someone will probably flame me for saying this and honestly I don't care. I ran PROcede for years and the JB4 G5 ISO has finally caught up with the times. I would also recommend the ER charge pipe as the new 2009+ CP is longer and uses the stock connection. BMS Down Pipe are in my mind the best out there at this point in time. I have VRSF and I recently had the chance to see the BMS pipes first hand. I was very impressed with the quality and if I need to buy a new set, BMS FTW. Good luck with your build. Feel free to reach out if you need help with anything.

[Murph335]

Originally Posted by Myrder

Did you read the responses in the thread you posted?

It has no basis for the argument that E85 caused the fuel injectors to fail.

yeah your right tough to prove it was e85. what about thoughts on eating the stock lines, etc.? Guess it matters what mix you use ex. 5gal E85 and top it off with 91.

[Murph335]

Originally Posted by Wedge1967

There is nothing wrong with the JB4 and trunk mounted meth. After running multiple tunes, I think you'll find flash tuning with Aquamist HFS-4 is a better way to go for a reliable daily driver. Most of the posts telling you to go with JB are from new members and they probably don't know much about flash tuning and have only ran the JB. Yes, someone will probably flame me for saying this and honestly I don't care. I ran PROcede for years and the JB4 G5 ISO has finally caught up with the times. I would also recommend the ER charge pipe as the new 2009+ CP is longer and uses the stock connection. BMS Down Pipe are in my mind the best out there at this point in time. I have VRSF and I recently had the chance to see the BMS pipes first hand. I was very impressed with the quality and if I need to buy a new set, BMS FTW. Good luck with your build. Feel free to reach out if you need help with anything.

Thanks for the input! I picked up a used set of AR DP for about the same as BMS. AR was the ish a year ago when i was looking. I installed CPe and they fit great. Called dynocomp in scottsdale a guy who works there owns a modded 335i and said they have done quite a few BMS meth kits. Had good things to say about it, and they dont sell bms. I feel good that they are local, have a dyno, can do some logs.

What makes the HFS4 better for daily driving?
What are thoughts on the BMS charge pipe?

[Wedge1967]

Originally Posted by Murph335

Thanks for the input! I picked up a used set of AR DP for about the same as BMS. AR was the ish a year ago when i was looking. I installed CPe and they fit great. Called dynocomp in scottsdale a guy who works there owns a modded 335i and said they have done quite a few BMS meth kits. Had good things to say about it, and they dont sell bms. I feel good that they are local, have a dyno, can do some logs.

What makes the HFS4 better for daily driving?
What are thoughts on the BMS charge pipe?

HFS-4 is a PWM (Pulse-width modulation) system. You can control the rate progressively while maintaining constant pressure using a fast acting valve to turn on and off the flow. The rate onset is fully adjustable and you can setup the system to trigger by boost, or injector duty cycle.

The PPS system is on or off 100% and if you try to control rate by dropping pressure, the nozzles won't atomize the spray causing droplets to form inside the charge pipe. A lot of people run this setup, but PWM will always be the better solution and if you can afford the HFS-4, it's well worth the extra money.

Terry makes a great product. He does his homework and builds a product based on the best features on the market today. Other than personal preference, I can't justify choosing one over the other.

Hope this helps.

[nailer335]

Back when my car was doing meth here in AZ, I went with the most aggressive JB4 version available at the time, simple functional trunk tank and did a CM10 in the charge pipe. 2 cm3s, one in each intake snorkel too (Mr5 intake). The car really appreciated the intake meth here where it's extremely hot and dry for most of the year. I had ambient IATs at 18-19psi on 100% meth and stock turbos, run after run after run. The JB4 was great. I'm sure the Cobb is great too. If/when I do it again, I'll put the BMS flash in the mix.

[335twins]

Originally Posted by Murph335

Thanks for the input! I picked up a used set of AR DP for about the same as BMS. AR was the ish a year ago when i was looking. I installed CPe and they fit great. Called dynocomp in scottsdale a guy who works there owns a modded 335i and said they have done quite a few BMS meth kits. Had good things to say about it, and they dont sell bms. I feel good that they are local, have a dyno, can do some logs.

What makes the HFS4 better for daily driving?
What are thoughts on the BMS charge pipe?

Hey,

I had my car flashed at dynocomp, it was the evotech tune, the car had hiccups and they couldn't solve it so they gave me Cobb ap instead, if you just installing stuff I would go there but tunning the 335, i wouldn't. They really know how to tune the Subaru but BMW, I don't know. You can also check Godspeed performance they are like 2 minutes away from dynocomp.

[Allen@MOTIV]

Originally Posted by 335twins

Hey,

I had my car flashed at dynocomp, it was the evotech tune, the car had hiccups and they couldn't solve it so they gave me Cobb ap instead, if you just installing stuff I would go there but tunning the 335, i wouldn't. They really know how to tune the Subaru but BMW, I don't know. You can also check Godspeed performance they are like 2 minutes away from dynocomp.

When choosing someone to tune your N54 it's very important to do your homework. Unless the tuner has experience and a very good working knowledge of the N54 the results are usually less than spectacular.

[BQTuning]

Originally Posted by Allen@PTF

When choosing someone to tune your N54 it's very important to do your homework. Unless the tuner has experience and a very good working knowledge of the N54 the results are usually less than spectacular.

+ 1

To add there are plenty of post of people whom decided to played russian roulette and just through away money on a proTune that was absolutely crap.

@ OP, PTF walk, talk, and breath the N54 platform. They drive N54's, and have a renown history with this platform and can deliver results what no other Cobb proTuner on this platform can give you for the money.

[Myrder]

Originally Posted by Murph335

yeah your right tough to prove it was e85. what about thoughts on eating the stock lines, etc.? Guess it matters what mix you use ex. 5gal E85 and top it off with 91.

From what I have read, it would be minimal (none) corrosion at best.

I've been running a E30 (roughly) mix for about..... 4k miles, haven't noticed any negatives aside from 2-3mpg less. Though the $2.80 a gallon is nice (Indian Bend and 7th st. Texaco).

Also I know Rich at dynocomp pretty well. They are great with Subies and AMG's I do not know about 335i's.

[Murph335]

For tunes it would be ptf etune or BMS, might even drive to SoCal to get all the wrk done right!

[Murph335]

Update: did a baseline run at Goodspeed 265/300tq on Monday. Dropped car off today to install ar dp, aa fmic, BMS occ, kmac rear, m3 front arm kit.
On my way today I mixed 5gal e85 and topped off 91 oct, and changed to e30 st map. Jumped on highway slowly rolled into boost being careful, and I just can't help myself. Cobb boost live log showed 19psi!?

If that's accurate this is going to be some big gains!

I am still interest in methanol to keep the back of the valves clean.


Btw dyno comp wasn't too confident in estimating the work. Goodspeed had quite a few n54 documented!

[Myrder]

Originally Posted by Murph335

Update: did a baseline run at Goodspeed 265/300tq on Monday. Dropped car off today to install ar dp, aa fmic, BMS occ, kmac rear, m3 front arm kit.
On my way today I mixed 5gal e85 and topped off 91 oct, and changed to e30 st map. Jumped on highway slowly rolled into boost being careful, and I just can't help myself. Cobb boost live log showed 19psi!?

If that's accurate this is going to be some big gains!

I am still interest in methanol to keep the back of the valves clean.


Btw dyno comp wasn't too confident in estimating the work. Goodspeed had quite a few n54 documented!

Nice update! Get some after numbers so we can see your gains!

[Murph335]

Update: FBO, m3 front bits were done in 7hrs. Kmac rear camber kit has the wrong size too big bushings for e90, box was correct for e90. Kmac was cool enough to send out the right kit Thursday from Australia should be here in a couple days. Stock parts get destroyed in the process so the car is a roller right now.

I also added a BMS occ at the last min. Even though the shop said after a year there will barely be any oil in it, they are almost useless for BMW. Shop owner has bought this can and used it on other cars like Audi and sti bc the design is so high quality.

Once installed we will get the FBO cobb e30 map on the rollers!

Given the experience of this shop I am seriously considering adding a meth kit. Still torn between the BMS trunk and the hfs4 (double the cost)

I already own cobb and jb4(would need upg to g5 if I use it). I really like the logging, and switching between e30 and 91 maps within the cobb.

[135Pats]

Wait the shop said an occ is useless on an N54 with otherwise stock pcv system?















Lol. And get HFS-4. Spraying progressively off of IDC is so preferable to imaginary flow and boost targets.

[marc@x-ph.com]

HFS-4 is the best kit you can buy and it would work great with COBB, which you already have. that's your best path if you're going the meth route.

[Murph335]

A few last q, if there is already a sticky link me!

What kind of fail safe does the hfs 4 offer with the Cobb combo?

Guessing some kind of alert when tank is low?

What Does IDC stand for? (I'll research it)

Buy an aftermarket charge pipe or tap the stock? Pros cons?

Is this kit really $850??

Just got the European car issue (green hell m3 on cover) where they tested banks meth kit and Cobb tune on Cali 91oct. Very relevant article to show the gains and timing. Owner of the stock 2007 works at banks so makes sense he went with that kit.
(Wouldn't buy the banks kit though, late to the game, and we have other great options for same $)
Great article and very relevant to my build!

[marc@x-ph.com]

Originally Posted by Murph335

A few last q, if there is already a sticky link me!

What kind of fail safe does the hfs 4 offer with the Cobb combo?

Guessing some kind of alert when tank is low?

What Does IDC stand for? (I'll research it)

Buy an aftermarket charge pipe or tap the stock? Pros cons?

Is this kit really $850??

Just got the European car issue (green hell m3 on cover) where they tested banks meth kit and Cobb tune on Cali 91oct. Very relevant article to show the gains and timing. Owner of the stock 2007 works at banks so makes sense he went with that kit.
(Wouldn't buy the banks kit though, late to the game, and we have other great options for same $)
Great article and very relevant to my build!

IDC = injector Duty cycle. So you're not only spraying with boost, but also relatively to the amount of fuel injected.

Get an aftermarket chargepipe. Might as well since you will be running higher boost and you don't want the stock cracking or popping off. And you can get two meth bungs with ER for example. Makes installation a breeze and provides higher reliability. And we carry them all

Failsafe: HFS-4 hooks up in between teh DME and the wastegates. In the event of low fluid, or more importantly an interruption in flow caused by God knows who, the HFS-4 will force the WGs open and dump excess boost.

Btw we offer great prices on HFS-4 kits and tanks and we are just a PM away.

[Murph335]

Hey thanks Marc!

Sounds like some big benefits here in timing and lower temps too.

Is it true this could keep the valves clean saving money on decarb/walnut blasting service?

[Jeff@TopGearSolutions]

Originally Posted by Murph335

Sounds like some big benefits here in timing and lower temps too.

Is it true this could keep the valves clean saving money on decarb/walnut blasting service?

It helps but you still get build up eventually.

BTW the kit is $850 Retail without a tank. The tank is another $200 or so. It's a pretty expensive piece. It can be done cheaper but the Aquamist is arguably one of the best kits.

I would stick with an ER Charge pipe. You can request custom meth bungs to get aquamist or you can get regular meth bungs and use aquamist adapters on them.

[Murph335]

Mods should make a meth FAQ sticky?!

[135Pats]

Originally Posted by Murph335

Hey thanks Marc!

Sounds like some big benefits here in timing and lower temps too.

Is it true this could keep the valves clean saving money on decarb/walnut blasting service?

Ya you'll still have build up over time. The PCV system sucks, and DI is what it is.

And i'd advise you not be overly reliant on meth for timing purposes. Even with a nice failsafe like the HFS-4. It can clean things up for sure, and if you have headroom provided with the fuel (E85/Race gas) then you can be more confident in being aggressive on the tuning side. But overall, use it to keep IATs down.

[marc@x-ph.com]

Originally Posted by 135Pats

Ya you'll still have build up over time. The PCV system sucks, and DI is what it is.

And i'd advise you not be overly reliant on meth for timing purposes. Even with a nice failsafe like the HFS-4. It can clean things up for sure, and if you have headroom provided with the fuel (E85/Race gas) then you can be more confident in being aggressive on the tuning side. But overall, use it to keep IATs down.

I totally agree. it will definitely allow for some more aggressive timing but nothing compared to what you can run (safely) on ethanol mixes.

Regardless the benefits are clear.