JBP Cams Revisited: New Grind for `09!

Old Jul 3, 2009 | 12:13 PM
  #351  
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From: Land of Freedom
im still waiting on the dyno graph
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Old Jul 7, 2009 | 02:08 PM
  #352  
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From: Toronto

BEFORE



AFTER



Sorry for the long delay in posting the before and after dyno's. The engine has more torque top end. With the new cams you lose the linear torque band and bottom end suffers quite a bit. We hooked up the AFR in the tail pipe for the AFTER install run and peg rich up top, but nothing too detrimental. The car chases the commanded idle, it is hard to keep. The sound is extensively rumbly and pleasant to the ears. We sincerely feel with adequate tuning, the LSJ can fetch double the HP numbers with these cams, maybe more. We're going to keep tuning and see if we can do. After market Valve springs are necessary to prevent coil bind. The lift is 0.480", the duration is 262*. At this moment, we'll slap a part number on these cams and throw them up on the website tonight and plan a GB too. Like I said before, we were hoping for more out-of-the box hp, but it looks like tuning will be a real challenge for each and every car since there are so many variables.
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Old Jul 7, 2009 | 04:49 PM
  #353  
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From: Still fixing others mistakes.
anyone else see the error behind these graphs?
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Old Jul 7, 2009 | 04:53 PM
  #354  
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do tell
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Old Jul 7, 2009 | 04:54 PM
  #355  
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From: Onoway
Originally Posted by Area47
anyone else see the error behind these graphs?
time and speed are used??? just a guess
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Old Jul 7, 2009 | 05:01 PM
  #356  
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From: Still fixing others mistakes.
gear changes.
red is usually the most recent runs on a dyno jet. can be changed though.

no rpms. using speed, or time will increase the power numbers in the calculations.

the average user is going to look at these charts and be confused as to what the real numbers are before and after.
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Old Jul 7, 2009 | 05:13 PM
  #357  
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From: Onoway
Originally Posted by Area47
gear changes.
red is usually the most recent runs on a dyno jet. can be changed though.

no rpms. using speed, or time will increase the power numbers in the calculations.

the average user is going to look at these charts and be confused as to what the real numbers are before and after.
I was close. lol
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Old Jul 7, 2009 | 05:35 PM
  #358  
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From: Land of Freedom
Originally Posted by Area47
anyone else see the error behind these graphs?
enlighten us
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Old Jul 7, 2009 | 06:33 PM
  #359  
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From: Toronto
Originally Posted by Area47
gear changes.
red is usually the most recent runs on a dyno jet. can be changed though.

no rpms. using speed, or time will increase the power numbers in the calculations.

the average user is going to look at these charts and be confused as to what the real numbers are before and after.
regardless, heading back to the dyno after more tuning. we'll squeeze more than 8.2whp. we'll put up every variable requested if need be.. then switch back to stock and do another base line with every variable requested. There's nothing to hide behind these cams.

also if anyone is concerned, the test car only has a 3.0" exhaust for mods. Everything else is stock.
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Old Jul 7, 2009 | 06:42 PM
  #360  
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is that dp back? or cat-back? and is it catless
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Old Jul 7, 2009 | 06:44 PM
  #361  
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From: Still fixing others mistakes.
Originally Posted by JBP
regardless, heading back to the dyno after more tuning. we'll squeeze more than 8.2whp. we'll put up every variable requested if need be.. then switch back to stock and do another base line with every variable requested. There's nothing to hide behind these cams.

also if anyone is concerned, the test car only has a 3.0" exhaust for mods. Everything else is stock.
Mev. if you wouldn't have played the game of **** with the numbers via every possible factor. we would not be in this situation.
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Old Jul 7, 2009 | 08:30 PM
  #362  
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^^^^ exactly.

Again I warn all to stay away from these guys...... Trust me.
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Old Jul 7, 2009 | 10:20 PM
  #363  
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lalallalalla.
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Old Jul 7, 2009 | 10:30 PM
  #364  
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who in the hell posts dyno graphs referenced by time?
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Old Jul 8, 2009 | 07:15 AM
  #365  
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JBP that's who.
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Old Aug 10, 2009 | 05:30 PM
  #366  
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sub'd
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Old Aug 10, 2009 | 05:49 PM
  #367  
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From: Land of Freedom
for what?
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Old Aug 10, 2009 | 05:50 PM
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From: Ar-kan-sas
this must be the same dyno work that provided 31 whp gain with the header.
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Old Aug 10, 2009 | 05:52 PM
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From: Still fixing others mistakes.
Originally Posted by hatrickstu
this must be the same dyno work that provided 31 whp gain with the header.
oh snaps!
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Old Aug 10, 2009 | 05:56 PM
  #370  
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I gained 52 from the vortex! Uh..., I meant lost 52.
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Old Aug 10, 2009 | 08:14 PM
  #371  
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Originally Posted by Deathscythe
I gained 52 from the vortex! Uh..., I meant lost 52.
lol!
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