[C62335i]

Which one has more power?

[gimp2x]

the airplane takes off!

[mistermojorizin]

jb3 has more power. jb2x has more torque regardless of software. jb3 v81 has less torque than jb3 v80.

[Driver72]

Originally Posted by mistermojorizin

jb3 has more power. jb2x has more torque regardless of software. jb3 v81 has less torque than jb3 v80.

This is not true.

It all depends on the boost you dial up with the JB2X

JB3 seems to have about equal power as you'd get with a
JB2HH

JB2HR has more power and JB2HHR has quite a bit more power.
JB3 has boost of ~14 psi (give or take .5 psi)
Again, that's about where JB2HH is

JB3 now uses both solenoids so it's smoother however.

[mistermojorizin]

i know, i meant jb2x max boost! jb2x was tuned for low end torque, jb3 is tuned for high end power. rather than comparing power from one car to another, i'm looking more at the power GAINS (like terry's 135 on 91octane that gained 80hp) please show me a jb2x on 91 that gained 80hp that can run without limps. Also, the jb3 holds boost into higher rpms producing more torque and more hp at the higher rpms where you will be for most of a 0-60 race.

and its a fact that the v81 cant have as much torque from the piggy as the v80.

so i think what i said was generally true, without getting into a more extensive discussion.

[C62335i]

Great response from all, however; let me rephrase the question.

Which one is faster 0 to 60?

[mistermojorizin]

Originally Posted by C62335i

Great response from all, however; let me rephrase the question.

Which one is faster 0 to 60?

cars vary from one example to another, but the rule of thumb is cars with higher hp will be faster than cars with lower hp, and cars with higher tq will have more driveability (i.e. acceleration without reving) than cars with lower torque. If hp is the same, the car with higher torque will win.

[camaross305]

i asked a similar question i guess you have to make a decision yourself

http://www.e90post.com/forums/showthread.php?t=164587

i still cant find an exact answer. people either dynoed with different mods or octane.

no one has an exact same mod setup, same dyno conditions, and same octane on a dyno with jbx at 100% r switch off compared to a jb3

[RiXst3r]

Its all about the boost curve when you compare jb2x and jb3. The jb3 just RIPS to redline with more boost up top, where as the jb2x would kick you in the butt with a giant tourqey boost bomb down low

I went from jb2hh to jb3, and the jb3 feels much stronger, especially in 3rd gear where traction isn't an issue like in 1st and 2nd.

Its enough that the first time my wife rode with me after the jb3 was installed, she grabbed the door handle and said "whoah! did you add more power to this thing again? it feels like a roller coaster ride!"

[stimpy]

Originally Posted by RiXst3r

Its enough that the first time my wife rode with me after the jb3 was installed, she grabbed the door handle and said "whoah! did you add more power to this thing again? it feels like a roller coaster ride!"

'again' - haha that's awesome.

[Driver72]

Originally Posted by mistermojorizin

i know, i meant jb2x max boost! jb2x was tuned for low end torque, jb3 is tuned for high end power. rather than comparing power from one car to another, i'm looking more at the power GAINS (like terry's 135 on 91octane that gained 80hp) please show me a jb2x on 91 that gained 80hp that can run without limps. Also, the jb3 holds boost into higher rpms producing more torque and more hp at the higher rpms where you will be for most of a 0-60 race.

and its a fact that the v81 cant have as much torque from the piggy as the v80.

so i think what i said was generally true, without getting into a more extensive discussion.

Yes, there is more torque with the JB2x products than v81 JB3 maps because it's below 5000 rpm where the "code" would be tripped that you have a tune so the "Doomsday" maps of V3 and JB3 have less boost below 5000 rpm.

However, I have dynoed with Terry on many occasions.
JB3 will dyno about 340-345 rwhp on 91 Octane.

JB2 will dyno around 325-330 hp on 91 Octane
Each "H" pill or apparently .25 turn of the "X" dial will add about 10-12 rwhp
There are and were PLENTY of people running JB2HH on 91 Octane without codes.
So JB2HH will make roughly 340-345 rwhp. But more torque than JB3
There were even a couple running JB2R on as low as 93 Octane with no codes.

As for 0-60
Well that test is pretty meaningless.
0-60 is as much about traction at the launch as it is power. Hence the reason AWD cars with less power can have awesome 0-60 times but are slower cars once traction is not an issue.

And to be honest, more torque down low in these cars does not help 0-60 times as it's harder to launch.
That why when the original PROcede's came out (I was one of the first 25 in the country to get one) and while Shiv was installing it, I asked him for LESS low to mid range torque and more higher RPM horsepower.

It took V2 to get that wish, and now with V3 (and JB3) with the Doomsday maps, my long time desire and asking has been further delivered.

There is no doubt that JB3 will hold more power above 6000 rpms than JB2HH does, but that wasn't the question the OP asked.

Anyway, the belief JB3 is "much more powerful" than say JB2HH is just not true. Terry and I dynoed these tunes many times. No doubt a JB3 car will pull a bit on a JB2HH car in a rolling race, due to JB3 holding boost longer up to redline, so it will have a bit more power above 6000 rpm, that is true. But below 6000 rpm they'd be equal and the JB2HH might even jump ahead for a bit.
Terry's best 1/4 mile times on his 335i were with the JB2HHR on 96-97 Octane.
On the same octane with JB3 he did a bit slower, even with his 135i
But JB2HHR surely is not v29.2 or DMEv81 safe, nor is JB2HH

Cheers

[camaross305]

i normally run my jb2x at 100% with intake and dp's on 93 octane.....i was thinking of trying it with the r map on but i think ill get a code

My big thing and debating on wether or not to get the JB3 is that supposedly the JB3 adapts better to mods like dp's,fmic, etc. If this is true then with my mods a jb3 would be better

[Driver72]

Originally Posted by camaross305

i normally run my jb2x at 100% with intake and dp's on 93 octane.....i was thinking of trying it with the r map on but i think ill get a code

My big thing and debating on wether or not to get the JB3 is that supposedly the JB3 adapts better to mods like dp's,fmic, etc. If this is true then with my mods a jb3 would be better

It's hard to say really.
Again, when Terry and I were dynoing the various tunes and mods he had on his 335i, if I remember correctly he got the most power with JB2HHR with his DP's, intake, 2nd cats delete and ~98 Octane.

The fact of the matter is on JB2HHR you are pushing like 16+ psi
The JB3 won't push that much.
It might get close with race gas and your mods, but I think Terry dialed in a bit more of a "safety" net with the JB3 than what was allowed with the JB2 and all the "H" pills and "R" switch.

They'd probably both be within 10 rwhp of each other, but based on what I've seen with Terry's dynos and 1/4 mile times, he got the most power and best times with the JB2HHR.
But it's not as safe as the JB3 that's for sure.

I think most would give up the 10 or so rwhp to have the added safety of not pushing as much boost and having the boost decay feature that tunes like PROcede V2 (and V3) as well as JB3 now have.

[hotrod182]

Originally Posted by Driver72

Terry's best 1/4 mile times on his 335i were with the JB2HHR on 96-97 Octane.
On the same octane with JB3 he did a bit slower, even with his 135i
But JB2HHR surely is not v29.2 or DMEv81 safe, nor is JB2HH

Cheers

The 135i ran low 12's but that was with stock downpipes, intake, etc, and still pulled a 114mph trap on the Vbox.

http://www.n54tech.com/forums/showthread.php?t=1481

[dmboone25]

Originally Posted by hotrod182

The 135i ran low 12's but that was with stock downpipes, intake, etc, and still pulled a 114mph trap on the Vbox.

http://www.n54tech.com/forums/showthread.php?t=1481

Right, but I think Terry holds the fastest time in the world for a 335--which was in the ~11.8 range if I remember right. It was definately JB2 with the pills....there were other mods in there as well, that Terry's 135i doesn't have, so not a strict apples to apples comparison.

Both are stupid fast though.

[hotrod182]

Originally Posted by dmboone25

Right, but I think Terry holds the fastest time in the world for a 335--which was in the ~11.8 range if I remember right. It was definately JB2 with the pills....there were other mods in there as well, that Terry's 135i doesn't have, so not a strict apples to apples comparison.

Both are stupid fast though.

I was able to get down to 12.6x on my JB3 sedan. The car is otherwise totally stock down to the 91 octane and RFTs. With DRs, and 93 octane, and a 1.8 sec 60' time instead of a 2.0x sec 60', this would have been in the 12.2x sec range for the 1/4 mile. Here is some test info on my car that I posted earlier:

http://www.e90post.com/forums/showthread.php?t=162514

[GAaaAR]

Originally Posted by hotrod182

I was able to get down to 12.6x on my JB3 sedan. The car is otherwise totally stock down to the 91 octane and RFTs. With DRs, and 93 octane, and a 1.8 sec 60' time instead of a 2.0x sec 60', this would have been in the 12.2x sec range for the 1/4 mile. Here is some test info on my car that I posted earlier:

http://www.e90post.com/forums/showthread.php?t=162514

HotRod didn't you try both tunes? Which one was faster?

[Driver72]

Originally Posted by hotrod182

The 135i ran low 12's but that was with stock downpipes, intake, etc, and still pulled a 114mph trap on the Vbox.

http://www.n54tech.com/forums/showthread.php?t=1481

That's true but that was also near sea level by your place.
The 335i on JB2HHR was at Famoso when it got the 11.89 @ nearly 115 mph and with a DA well above sea level and on sticky DR's (which help at launch, but then will cause a bit extra drag and slow down trap speeds once rolling).

I also believe he ran low 12's on his 335i with JB2HHR without all the DP's and such too. Again, at a track that did not have near sea level DA's

[Driver72]

Originally Posted by hotrod182

I was able to get down to 12.6x on my JB3 sedan. The car is otherwise totally stock down to the 91 octane and RFTs. With DRs, and 93 octane, and a 1.8 sec 60' time instead of a 2.0x sec 60', this would have been in the 12.2x sec range for the 1/4 mile. Here is some test info on my car that I posted earlier:

http://www.e90post.com/forums/showthread.php?t=162514

And didn't you do a 12.2 on your sedan with JB2HR at Famoso as well.
Again, higher DA on a real track, with better times than you got with sea level DA (or very close to it) on standard JB3 on 91 Octane. With a Famoso like 2000-3000 DA you might of only got a 12.8 on JB3 with 91 Octane, not the 12.6 you got near sea level.

JB3 is great no doubt, but as Terry told me, on the current high boost map, it's not making as much power/boost as a JB2HR does, much less a JB2HHR. That will surely change with race gas map like he gave "Down4it"
He custom tuned Oren's JB3 with 1 psi more boost (15-15.2 psi peak on acceleration) since he has all the catless DP's, exhaust, FMIC and runs 96+ Octane all the time.

But the regular JB3 (14-14.3 psi peak boost on acceleration) will make similiar power below 4500 rpm as a JB2HH (JB2HH might actually make a bit more torque down low)
And above 4500 rpm the JB3 will probably make similiar power on 91 Octane to what the JB2R did on 95 Octane.