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      08-18-2008, 12:34 PM   #1
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Any power gain jb2x to JB3?

Does anyone have any dynos of a jb2 with x at 100% but the race map switch off compared to a JB3? Im just seeing if it is really even worth it because it seems to me they make about the same power. Seems like thejb2x has a little more peak torque ~10tq and more power under the curve where as the jb3 hs slighlty more topend. Just curious what you guys have seen
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      08-18-2008, 12:36 PM   #2
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Quote:
Originally Posted by camaross305 View Post
Does anyone have any dynos of a jb2 with x at 100% but the race map switch off compared to a JB3? Im just seeing if it is really even worth it because it seems to me they make about the same power. Seems like thejb2x has a little more peak torque ~10tq and more power under the curve where as the jb3 hs slighlty more topend. Just curious what you guys have seen
Trust me its well worth it...
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      08-18-2008, 12:37 PM   #3
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The JB3 is with DPs and the JB2X is without but I only gained 3rwhp with the catless DPs so you can do the math.....

After 4300rpm the JB3 takes over completely....

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      08-18-2008, 12:40 PM   #4
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^ yea i remember your graph but from talking with terry he said the jb3 better compensates for mods like dp's and FMIC etc. So that couldbe it too.

hereis straight from his website a jb2x at 100% with intake and dp's
http://www.burgertuning.com/images/filterdyno.jpg

and then the same mods but with the jb3

http://www.burgertuning.com/images/dyno3.jpg

seems like the jb2x has 50 more rwtq!
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      08-18-2008, 12:43 PM   #5
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Quote:
Originally Posted by camaross305 View Post
^ yea i remember your graph but from talking with terry he said the jb3 better compensates for mods like dp's and FMIC etc. So that couldbe it too.

hereis straight from his website a jb2x at 100% with intake and dp's
http://www.burgertuning.com/images/filterdyno.jpg

and then the same mods but with the jb3

http://www.burgertuning.com/images/dyno3.jpg

seems like the jb2x has 50 more rwtq!
The torque comes from uncontrolled boost and it is not useful since you will just spin the tires.

The HP difference comes from heavier wheels on the JB3 run, and also only running 93 octane. I believe on those air filter runs he is running higher octane....
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      08-18-2008, 12:48 PM   #6
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yea it has to be on higher octane cause those numbers are high......
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      08-18-2008, 12:49 PM   #7
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Quote:
Originally Posted by camaross305 View Post
^ yea i remember your graph but from talking with terry he said the jb3 better compensates for mods like dp's and FMIC etc. So that couldbe it too.

hereis straight from his website a jb2x at 100% with intake and dp's
http://www.burgertuning.com/images/filterdyno.jpg

and then the same mods but with the jb3

http://www.burgertuning.com/images/dyno3.jpg

seems like the jb2x has 50 more rwtq!
First of all you need to learn to read a dyno graph a little better, that big torque number is a momentary spike, on the JB2X the R switch was on... You cannot compare that to the normal JB3 high boost map... The JB3 race map with 100oct will have much more power over just the standard map on 91oct... I made 399whp and 405wtq on 97oct on the JB3 running at 15psi...

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      08-18-2008, 12:55 PM   #8
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i see the spike... my point really wasnt about the peak torque persay but just the overall power under the curve from the jb2x compared to jb3
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      08-18-2008, 01:03 PM   #9
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From what I have been able to gather, the JB3 doesn't necessarily give you more power, it just DELIVERS it better. Supposed to be smoother and more stock-like in the delivery.

Kyle--is that an accurate statement?
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      08-18-2008, 01:25 PM   #10
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Quote:
Originally Posted by camaross305 View Post
i see the spike... my point really wasnt about the peak torque persay but just the overall power under the curve from the jb2x compared to jb3
I disagree, look at my dyno graph above....
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      08-18-2008, 01:26 PM   #11
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Quote:
Originally Posted by dmboone25 View Post
From what I have been able to gather, the JB3 doesn't necessarily give you more power, it just DELIVERS it better. Supposed to be smoother and more stock-like in the delivery.

Kyle--is that an accurate statement?
Yes and no. It delivers it better by not having a spike in the beginning of the curve and it gives you more after 4300rpm by being able to control timing.
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      08-18-2008, 01:36 PM   #12
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yea it seems like the jb2 is more random.... with my x at 50% sometimes i get up to 13.9 psi sometimes i only hit 12.5.......

its so hard to sompare everyones graphs bcause everyone has different mods or octane levels etc. But it seems the jb3 still shines slightly on top.
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      08-18-2008, 01:40 PM   #13
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Quote:
Originally Posted by e90AW335i View Post
Yes and no. It delivers it better by not having a spike in the beginning of the curve and it gives you more after 4300rpm by being able to control timing.
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      08-18-2008, 01:40 PM   #14
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Quote:
Originally Posted by dmboone25 View Post
From what I have been able to gather, the JB3 doesn't necessarily give you more power, it just DELIVERS it better. Supposed to be smoother and more stock-like in the delivery.

Kyle--is that an accurate statement?
That is incorrect, yes it delivers the power much better via the tps boost control, but i made more power on a non race map JB3 with 97oct than i did on the JB2X 100% R switch on with 100oct, so there is definitely more power on the JB3 and when there is a full on race gas map and im running 100oct straight, 410whp&420wtq should be a reality and in my opinion the farthest we will be able to go on the stock turbos...
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      08-18-2008, 01:45 PM   #15
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Quote:
Originally Posted by down4it View Post
That is incorrect, yes it delivers the power much better via the tps boost control, but i made more power on a non race map JB3 with 97oct than i did on the JB2X 100% R switch on with 100oct, so there is definitely more power on the JB3 and when there is a full on race gas map and im running 100oct straight, 410whp&420wtq should be a reality and in my opinion the farthest we will be able to go on the stock turbos...
so your dyno that you posted i saw you have a spearco fmic in your sig.....was that dyno with dp's and the fmic?
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      08-18-2008, 02:01 PM   #16
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Quote:
Originally Posted by camaross305 View Post
so your dyno that you posted i saw you have a spearco fmic in your sig.....was that dyno with dp's and the fmic?
I have had the DP's and the FMIC for longer than i have had any BMS tune so all the dynoes i have done in the last year have had intake, exhaust, tune, FMIC, and DP's...
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      08-20-2008, 07:19 AM   #17
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Quote:
Originally Posted by down4it View Post
First of all you need to learn to read a dyno graph a little better, that big torque number is a momentary spike, on the JB2X the R switch was on... You cannot compare that to the normal JB3 high boost map... The JB3 race map with 100oct will have much more power over just the standard map on 91oct... I made 399whp and 405wtq on 97oct on the JB3 running at 15psi...

That is way sweet. Could hear the turbos. Very nice - and the power graph is too. So thats ith JB3 and 100 race gas, FMIC and downpipes? Nice to know...
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      08-20-2008, 12:57 PM   #18
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Quote:
Originally Posted by MNR0 View Post
That is way sweet. Could hear the turbos. Very nice - and the power graph is too. So thats ith JB3 and 100 race gas, FMIC and downpipes? Nice to know...
Well its more like 96oct, JB3 high boost map(not race gas map, but soon) Intake, exhaust, DP's, and FMIC...
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