Tuning Help Please
06-07-2006, 08:58 PM
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Tuning Help Please I recently went from a vinci 056 cam to their XXX cam. The difference is only duration and overlap. The 056 duration was 216/224 the new duration is 222/228. The old overlap was *53 the new overlap is *57. The lift with the 1.8 rockers is .590/.590 on a 115 LSA which is also the same as before with the other cam. So now the dilema the new cam only gave me another 20 hp and torque 
not to mention I added an underdrive pully too The first time I was there, the tuner told me my numbers were unlocked. Now all of the sudden he says these are locked numbers...WTF. This is a heads and cam car these numbers should be well over 400 rwhp and torque HP came out to 378.56 and torque came out to 358.16 The software used was HP tuners both times. Temp was 86.55 degrees with 19% humidity. I live in the far north suburbs of chicago are there any tuners out this way? I need some input here guys, any suggestions???
not to mention I added an underdrive pully too The first time I was there, the tuner told me my numbers were unlocked. Now all of the sudden he says these are locked numbers...WTF. This is a heads and cam car these numbers should be well over 400 rwhp and torque HP came out to 378.56 and torque came out to 358.16 The software used was HP tuners both times. Temp was 86.55 degrees with 19% humidity. I live in the far north suburbs of chicago are there any tuners out this way? I need some input here guys, any suggestions??? 
06-07-2006, 10:11 PM
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locked vs unlocked will yield different numbers with all being the same. do you have a dyno graph printout of 056 cam vs the xxx cam and pulley?? would like to see the overall change.
06-09-2006, 04:47 PM
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looks pretty good with the exception from 3200-4500 rpms. a little trough there. might be because the converter was locked this go around. from 2500-3000, the XXX cam picked up a decent amount of torque as well. should go back and get an unlocked reading to see if the trough goes away. locked converter will usually yield lower numbers.