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      04-10-2009, 06:19 PM   #1
TiAg335i
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JB+ 75% review

I was running JB+ at default setting for a while, decided to up it to 75% today...

Changing the boost is quite simple with the JB+, although it didn't occur to me at first that you had to adjust the little arrow, and not the entire blue dial. I was turning the blue dial like an idiot without it budging, not knowing you needed a small flathead screwdriver to adjust it.

Well, anyway, the car is scary fast now...there is a VERY noticeable difference from the default setting and 75% boost. The car just pulls like a madman...almost too quick for its own good sometimes.

Just one question though, whenever I am getting on it pretty hard, I hear this deep throaty "pop" from my exhaust. It almost sounds like a burp....I never noticed this before but of course I never really floored it before like this either. I should also note that this is NOT the gurgle you hear from letting off the gas (I am actively pressing the gas pedal and I hear it). Is this of concern>? BTW, I have the vacuum line for the butterfly valves unplugged (also known as golf-tee mod).
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      04-10-2009, 06:49 PM   #2
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Quote:
Originally Posted by TiAg335i View Post
I was running JB+ at default setting for a while, decided to up it to 75% today...

Changing the boost is quite simple with the JB+, although it didn't occur to me at first that you had to adjust the little arrow, and not the entire blue dial. I was turning the blue dial like an idiot without it budging, not knowing you needed a small flathead screwdriver to adjust it.
LOL! Glad to see im not the only person who did that!
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      04-10-2009, 06:52 PM   #3
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just put that thing at 100% already lol
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      04-10-2009, 07:05 PM   #4
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Anybody have any opinions on the burping exhaust sound?
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      04-10-2009, 07:21 PM   #5
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Turned mine up to 100% with the solenoid bypass. Have the UUC/Corsa Exhaust and when decelerating at certain points I can hear some popping noise from the exhaust, I don't think it is anything to worry about. Car is going on DynoJet again tomorrow so I will have some #'s to share soon.
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      04-10-2009, 07:56 PM   #6
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Is the 75% setting the "3'oclock" position?
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      04-10-2009, 08:02 PM   #7
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Quote:
Originally Posted by TiAg335i View Post
Anybody have any opinions on the burping exhaust sound?
If you're referring to what happens on the overrun, there's nothing to worry about there. That sound is tits, and won't hurt shit.

If that's not what you're referring to, I apologize for assuming it was.
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      04-10-2009, 08:14 PM   #8
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Quote:
Originally Posted by TiAg335i View Post
I was running JB+ at default setting for a while, decided to up it to 75% today...

Changing the boost is quite simple with the JB+, although it didn't occur to me at first that you had to adjust the little arrow, and not the entire blue dial. I was turning the blue dial like an idiot without it budging, not knowing you needed a small flathead screwdriver to adjust it.

Well, anyway, the car is scary fast now...there is a VERY noticeable difference from the default setting and 75% boost. The car just pulls like a madman...almost too quick for its own good sometimes.

Just one question though, whenever I am getting on it pretty hard, I hear this deep throaty "pop" from my exhaust. It almost sounds like a burp....I never noticed this before but of course I never really floored it before like this either. I should also note that this is NOT the gurgle you hear from letting off the gas (I am actively pressing the gas pedal and I hear it). Is this of concern>? BTW, I have the vacuum line for the butterfly valves unplugged (also known as golf-tee mod).
EDit

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      04-10-2009, 09:13 PM   #9
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been at 100% for about a week or so. scary fast?? mmm.. lets just say its way more fun to drive! probably gonna put the JB+ on the 135 and invest in a JB3 or Proceede.
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      04-10-2009, 09:21 PM   #10
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Quote:
Originally Posted by ragingclue View Post
If you're referring to what happens on the overrun, there's nothing to worry about there. That sound is tits, and won't hurt shit.

If that's not what you're referring to, I apologize for assuming it was.
On the overrun? What is that?

This is NOT the sound you hear when you let off the gas in say, a parking garage, and hear the crackling/gurgling noise.

When I hit the gas hard I hear the exhaust "burp", it's pretty weird.
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      04-10-2009, 10:06 PM   #11
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You mean to tell me there are people out there that run JB+ on less than 100%?
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      04-10-2009, 10:17 PM   #12
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You mean to tell me there are people out there that run JB+ on less than 100%?
Considering the potential for codes, yes.
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      04-10-2009, 10:27 PM   #13
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3 questions about the JB+

Will it throw a code if you have a early 07 build with old software that has never been updated?

Hard ECU Reset?

Can a scanning tool not clear the code?
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      04-10-2009, 11:06 PM   #14
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Quote:
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3 questions about the JB+

Will it throw a code if you have a early 07 build with old software that has never been updated?

Hard ECU Reset?

Can a scanning tool not clear the code?
Early 07 build with the early software will most likely not throw codes. Keep in mind there is no way to guarantee any of this, and your best bet is to buy the BT tool. The BT tool will clear any code.
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      04-11-2009, 07:45 AM   #15
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Quote:
Originally Posted by cincy335i View Post
Turned mine up to 100% with the solenoid bypass. Have the UUC/Corsa Exhaust and when decelerating at certain points I can hear some popping noise from the exhaust, I don't think it is anything to worry about. Car is going on DynoJet again tomorrow so I will have some #'s to share soon.
Do i need to do the bypass to safley turn the jb+ to 100%?
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      04-11-2009, 08:10 AM   #16
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Do i need to do the bypass to safley turn the jb+ to 100%?
That's what Terry suggests as well as the high octane fuel.
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      04-11-2009, 09:38 AM   #17
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As far as turning up to 100% and doing the solenoid bypass, the answer to whether it is necessary is no, or that is what I was told. It just helps to increase low end torque as I think the ECU piggys' (V3 and JB3) both electronically bypass the solenoid? This is just a simple, free way to do it, the manual way. Not a necessary mod, but it is working out for me so far. Thanks.
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      04-11-2009, 11:09 AM   #18
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Quote:
Originally Posted by cincy335i View Post
As far as turning up to 100% and doing the solenoid bypass, the answer to whether it is necessary is no, or that is what I was told. It just helps to increase low end torque as I think the ECU piggys' (V3 and JB3) both electronically bypass the solenoid? This is just a simple, free way to do it, the manual way. Not a necessary mod, but it is working out for me so far. Thanks.
Thanks Cincy, have you invested in a bt scan tool yet?
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      04-11-2009, 11:55 AM   #19
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Can someone confirm that the sound I am hearing is normal?
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      04-11-2009, 12:40 PM   #20
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I have never heard a "pop" from my car. However, when letting off the gas pedal i do get a burble or small backfire, but thats been there since day 1
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      04-11-2009, 02:05 PM   #21
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Quote:
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I have never heard a "pop" from my car. However, when letting off the gas pedal i do get a burble or small backfire, but thats been there since day 1
it's not a pop, it's more of a burp or gurgle when I get on it hard, NOT letting off the gas.
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      04-11-2009, 07:23 PM   #22
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I heard it too. Sounds like a small backfire. Mine was at 100% ever since day 1 (I think.. turning the dial clockwise to "Max".. right?).
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