Curious about tune stacking?

3-Serious · 07-27-2012, 10:56 PM

When people stack a JB4 and Cobb for meth control, how exactly is it working? How do you decide which tune is dominate, and how do you make them work together? I'm not exactly grasping the idea on how it works. Also I have a PROcede v5 sitting on my shelf, would stacking it with my Cobb be a more safe way to run my meth kit? My car is currently at a shop as we speak having my HFS-4 unit installed then they are pro-tuning it. Would adding the PROcede later on be a safer fail safe in the long run or am I fine the way I am now. Also even if I am fine the way I am Id still like someone to explain tune stacking. Thanks in advance.

bigdnno98 · 07-28-2012, 07:25 AM

There is a sticky about this on one of the other forums.

MilehighM3 · 07-28-2012, 09:06 AM

If your car gets pro tuned with the meth and Cobb, there shouldn't be much more power to gain from stacking. If there is more power available, they tuned it too conservatively. Just keep the one tune and eliminate the stacking as a potential problem down the road. It'll save you countless hours of tinkering trying to get the second one dialed in. Considering it shouldn't gain much once your car is already dialed in, it will not be time well spent.

hemi to e90 · 07-28-2012, 09:35 AM

Quote:

Originally Posted by nickkg37s

When people stack a JB4 and Cobb for meth control, how exactly is it working? How do you decide which tune is dominate, and how do you make them work together? I'm not exactly grasping the idea on how it works. Also I have a PROcede v5 sitting on my shelf, would stacking it with my Cobb be a more safe way to run my meth kit? My car is currently at a shop as we speak having my HFS-4 unit installed then they are pro-tuning it. Would adding the PROcede later on be a safer fail safe in the long run or am I fine the way I am now. Also even if I am fine the way I am Id still like someone to explain tune stacking. Thanks in advance.

what ever happened with the car?

3-Serious · 07-28-2012, 09:43 AM

Quote:

Originally Posted by hemi to e90

what ever happened with the car?

Thanks for the input everyone. I'm going to check the other forum for some more knowlege on it any way just for the sake of learning. And the last shop destroyed the pump wire and fried the board because put the board in the ecu compartment! So I had to have new wires and a new board sent out. Now the kit is up and running properly and I'm awaiting the tune. I'll keep ya posted.

Boosted-M · 07-28-2012, 10:20 AM

Did you order your Aquamist kit from Jeff @ Howerton engineering?
I just switched from the JB4 to Cobb and when I switched I installed the HSF4... Jeff made a little harness that cuts boost down to 8psi when failsafe kicks in... Works like a charm!

3-Serious · 07-28-2012, 10:42 AM

Quote:

Originally Posted by Boosted-M

Did you order your Aquamist kit from Jeff @ Howerton engineering?
I just switched from the JB4 to Cobb and when I switched I installed the HSF4... Jeff made a little harness that cuts boost down to 8psi when failsafe kicks in... Works like a charm!

Yup that's where I got my kit from. I wonder if I have that too? Is it a special order? I know it has a fail safe that opens the wastegate but just dropping the psi defiantly sounds more driveable if meth were to not flow.

Joshboody · 07-28-2012, 11:43 AM

Stacking can be very powerful combo. Using a failsafe with meth is much different then altering tuning based on flow... the latter is much better and potentially safer. Do you know the failsafe method in your setup?

A pro-tune will yield good power, but the limitation is that you are stuck with a drastically peaked torque curve in the mid-range... this is fine but not too useful, except for a brief kick in the pants during acceleration at ths rpm range. Tuners are having issues flatening the boost curve... Basically they cannot increase the top end without increasing mid-range also.

Fyi: you would not want to run Procede on top of a pro tune. Custom or conservative map would be best. Unless Vishue starts offering pass through with meth integration.

I may post a diy or fyi on ATR and Procede stacked soon.

enrita · 07-28-2012, 12:43 PM

Basically you add boost when meth flowing with jb4 , there is a setting for it. Thats what i run sometimes.

3-Serious · 07-28-2012, 01:41 PM

Quote:

Originally Posted by enrita

Basically you add boost when meth flowing with jb4 , there is a setting for it. Thats what i run sometimes.

Yeah I was just reading about how its done on the other forums it makes sense. I was thinking for a fail safe feature it would be nice but I'm sure mine will work just fine. Was just curious about it since I couldn't find any good information on it on this forum.

hemi to e90 · 07-28-2012, 01:57 PM

Quote:

Originally Posted by nickkg37s

Yeah I was just reading about how its done on the other forums it makes sense. I was thinking for a fail safe feature it would be nice but I'm sure mine will work just fine. Was just curious about it since I couldn't find any good information on it on this forum.

how bout this, go get the new jb5 box, and keep the cobb in.

solves most of the headaches.

pavo335 · 07-30-2012, 09:21 PM

Quote:

Originally Posted by bigdnno98

There is a sticky about this on one of the other forums.

hi can you give me a hint which forum?

Tzu · 07-31-2012, 06:42 AM

Quote:

Originally Posted by pavo335

hi can you give me a hint which forum?

It's a trap!

marv85 · 07-31-2012, 03:30 PM

lol

bigdnno98 · 08-02-2012, 07:17 PM

Quote:

Originally Posted by pavo335

hi can you give me a hint which forum?

Bb

07-27-2012, 10:56 PM	#1
3-Serious Lieutenant 45 Rep 473 Posts Drives: AP e92 335i Join Date: Dec 2008 Location: New york iTrader: (1)	Curious about tune stacking? When people stack a JB4 and Cobb for meth control, how exactly is it working? How do you decide which tune is dominate, and how do you make them work together? I'm not exactly grasping the idea on how it works. Also I have a PROcede v5 sitting on my shelf, would stacking it with my Cobb be a more safe way to run my meth kit? My car is currently at a shop as we speak having my HFS-4 unit installed then they are pro-tuning it. Would adding the PROcede later on be a safer fail safe in the long run or am I fine the way I am now. Also even if I am fine the way I am Id still like someone to explain tune stacking. Thanks in advance. __________________ Cobb JR Tune, HFS-4, DCI, AMS Intercooler, Vishnu CP, Forge DV's, AR DP's, RPI exhaust, AR OCC, BMW STS, Spec stage 3+ clutch, CDV delete, H&R Coil overs, Quaife LSD, DefiV Lock down kit, WOTbox. -SOLD
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07-28-2012, 07:25 AM	#2
bigdnno98 Real Car Enthusiast 288 Rep 2,081 Posts Drives: 340xi Join Date: Jul 2011 Location: Germany iTrader: (8)	There is a sticky about this on one of the other forums.
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07-28-2012, 09:06 AM	#3
MilehighM3 Brigadier General 915 Rep 3,456 Posts Drives: Harrop E90 M3 Join Date: May 2011 Location: Colorado Springs iTrader: (14) Garage List 2009 E90 M3 [6.50]	If your car gets pro tuned with the meth and Cobb, there shouldn't be much more power to gain from stacking. If there is more power available, they tuned it too conservatively. Just keep the one tune and eliminate the stacking as a potential problem down the road. It'll save you countless hours of tinkering trying to get the second one dialed in. Considering it shouldn't gain much once your car is already dialed in, it will not be time well spent.
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07-28-2012, 10:20 AM	#6
Boosted-M First Lieutenant 37 Rep 339 Posts Drives: F10 535D XDrive (USA) Join Date: Apr 2011 Location: Northeast PA & NJ iTrader: (2)	Did you order your Aquamist kit from Jeff @ Howerton engineering? I just switched from the JB4 to Cobb and when I switched I installed the HSF4... Jeff made a little harness that cuts boost down to 8psi when failsafe kicks in... Works like a charm! __________________ F10 535D XDrive (USA)
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07-28-2012, 11:43 AM	#8
Joshboody Lieutenant Colonel 65 Rep 1,708 Posts Drives: pickemuptruck Join Date: Jul 2009 Location: Phoenix, AZ iTrader: (7)	Stacking can be very powerful combo. Using a failsafe with meth is much different then altering tuning based on flow... the latter is much better and potentially safer. Do you know the failsafe method in your setup? A pro-tune will yield good power, but the limitation is that you are stuck with a drastically peaked torque curve in the mid-range... this is fine but not too useful, except for a brief kick in the pants during acceleration at ths rpm range. Tuners are having issues flatening the boost curve... Basically they cannot increase the top end without increasing mid-range also. Fyi: you would not want to run Procede on top of a pro tune. Custom or conservative map would be best. Unless Vishue starts offering pass through with meth integration. I may post a diy or fyi on ATR and Procede stacked soon.
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07-28-2012, 12:43 PM	#9
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Basically you add boost when meth flowing with jb4 , there is a setting for it. Thats what i run sometimes. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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07-31-2012, 03:30 PM	#14
marv85 Colonel 71 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	lol __________________ '18 F80 M3 Comp 6MT - Stock '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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