[robc1976]

Originally Posted by Jeff@TopGearSolutions

I like the HFS-4. It's arguably the best kit. So I would stick with that route.

The kit is honestly state of the art once you dial it in.

[robc1976]

Originally Posted by jazze90

Hfs4 and cobb, match made in heaven

Hell yeah it is!

[idrift4wd]

i just trapped 116 with just jb4 and dci with e85. i think i could have trapped 117.

[WedgePerformance]

Originally Posted by idrift4wd

i just trapped 116 with just jb4 and dci with e85. i think i could have trapped 117.

Once you go flash only, you wont go back to the JB4.

[Myrder]

Originally Posted by WedgePerformance

Once you go flash only, you wont go back to the JB4.

Aren't the fastest people stacking?

[WedgePerformance]

Originally Posted by Myrder

Aren't the fastest people stacking?

Fast or Stable? With flash only, I can run the shit out of my car all day long on the track and never limp. I agree if you want to make all out power, stack for boost control, but let the DME do fueling and timing.

I just tried the JB4 ISO G5 and I can say if I was running a base flash things would probably been better for maps 1, 2, 5, and 7. I ran mainly map 6 to dial in boost because I was running a very aggressive backend flash. To be honest, the PROcede is a much better choice for stacking because it's truly passive. With the JB, you can't drop into map 0 to run just flash. You also are limited to map 6 for custom tuning.

So are people who stack actually faster? Maybe... As long as you don't limp.

[idrift4wd]

Originally Posted by WedgePerformance

Fast or Stable? With flash only, I can run the shit out of my car all day long on the track and never limp. I agree if you want to make all out power, stack for boost control, but let the DME do fueling and timing.

I just tried the JB4 ISO G5 and I can say if I was running a base flash things would probably been better for maps 1, 2, 5, and 7. I ran mainly map 6 to dial in boost because I was running a very aggressive backend flash. To be honest, the PROcede is a much better choice for stacking because it's truly passive. With the JB, you can't drop into map 0 to run just flash. You also are limited to map 6 for custom tuning.

So are people who stack actually faster? Maybe... As long as you don't limp.

flashing is more consistent and stable forsure! I just hate cobb and dont understand protuning. Jb4 make the power without "tuning". from dyno sheets to 1/4 mile times. I've looked at protuned 1/4 mile times. not impressed. Same with dyno sheets.

thats why im going to backend flash my jb4 next week when my g5 comes in.

Im pretty confident I can run 11's with drag radials or backend flash. def hit 11s with both. basically with just tune and e85.

[jayzF30]

It always fascinates me that on this forum some people equate a good custom tune to someone running a good ET at the drag strip. I am sure that any tuning solution you use can get you the numbers these days. I have tried a JB and BMS flash stack and did not like it at all. My pro tune is so much smoother and stronger everywhere and yet I could care less about hitting the drag strip with my own daily driven BMW.

[jlcf22]

I also tried the bms flash and didnt like it the PTF tune was way better should be in the 11's with some drag radials

[WedgePerformance]

Originally Posted by idrift4wd

flashing is more consistent and stable forsure! I just hate cobb and dont understand protuning. Jb4 make the power without "tuning". from dyno sheets to 1/4 mile times. I've looked at protuned 1/4 mile times. not impressed. Same with dyno sheets.

thats why im going to backend flash my jb4 next week when my g5 comes in.

Im pretty confident I can run 11's with drag radials or backend flash. def hit 11s with both. basically with just tune and e85.

I'm surprised you take that stance considering you're not a newb to this platform. I consider going back to COBB just because it does the logging I need to fine tune my flash, but I'm still planning on going back to the PROcede for boost control to hit those big numbers you talk about. Trust me, I've ran them all and to be honest I was a little disappointed at the JB4 G5 ISO due to the fact it's not passive. You can't run it in any map setting without it doing something to the DME. I really want the best of both and the only way to do that is with the PROcede, OFT/BT Flash or COBB. The PROcede and JB4 can't touch the DME for fuel management and timing control. The fact that the JB4 is not passive makes it limited as to what you can ultimately do without tweaking that firmware which seems to be the case as new firmware is released every week to fix some minor issue here and there. The PROcede gives you two custom maps and the second best meth control on the market. So I can run my race flash for a stable track day car, map 1 for pump gas, map 2 for an all out e85/meth drag strip dyno day map. If you didn't see the numbers Ice put down with his XI, 460 whp and 519 wtq, which is off the hook for an XI. You'll be hard pressed to show me a JB4 log that looks anywhere close to as good as the log Ice made on that run.

So if 11s and dyno are all you care about then by all means go JB. It's a low cost solution that can make stupid power. But if you want a consistent tune, dump the JB and go flash. If you truly want to dyno day option, find a used v2.5 or v3 PROcede and use it for boost control. Ice was holding 21.8 psi and 15 deg of timing for over 1000 rpm... I personally couldn't get the JB to make those numbers, but I'm sure if I just wanted to use it in map 6 all the time I could have eventually... But it would have made it much more limiting as this is my daily driver and I need it to be stable also. So I wish you the best. Hopefully it works out for you, but if you ever want to switch, look me up and I'll help you get things setup.

[Murph335]

Dyno numbers don't mean much to me without a baseline. If that xi started at 265 and hit 460 that's 200hp gain insane!

Sounds logical that a Cobb could make same power as jb4, and other way around. Cobb might just need a protune instead of ots.

[Murph335]

Proven: 160rwhp/200rwhp on a BUDGET - Before/After http://www.e90post.com/forums/showthread.php?t=910796" rel="ugc" target="_blank">http://<a href="http://www.e90post.c...p?t=910796</a>


So good to drive this again!

[diegopiedra]

Originally Posted by Allen@PTF

The HFS-4 kit combined with our e-tunes has proven to be awesome combo, both in terms of reliability and power.

Do you do protunes for cars that have both meth and e85?

[Myrder]

You ever get your car to the track @Murph335?

[Murph335]

Originally Posted by Myrder

You ever get your car to the track @Murph335?

Not the strip, but I did 4x 20min sessions at bondurant west. Really enjoyed it ran with a viper for 3 sessions neither of of could gain enough to pass on straights lack of LSD killed my exits to get a jump.


two other n54 with jb4 that went limp. One was a pricey 335is, guess all the extra pricey oem stuff can't compare to bargain aftermarket.

I just get a kick out of 4dr with a baby seat running with coupes and all out sports cars.

Next mod is high temp brake fluid, kosei 17x? And nt01. Have m3 rear sub frame bushings sitting to be installed.

[Murph335]

update: car weighs 4300 with me in it (e93).
Made 450rwhp/500rwtq on E30 fuel. much wider power band. same dyno as the e90.

headed to the strip for some trap times friday after work.
No idea what it will do.

These 265 invo's are sticky and the extra weight seems to eliminate traction problems or the car is just slow. Trap will tell all!