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The Terminator
Engine/Tuning
Dyno w/ Apten 2.80 and Predator v R12 (Long)
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<blockquote data-quote="Snake-Shadow" data-source="post: 1111348" data-attributes="member: 9148"><p>Over the weekend I went to the Xtreme Motorsports dyno day On Saturday. Thanks Chad, Bill and all the techs. It was great everyone was making good power and even I dynoed higher than expected. My DYNO QUEEN journey started last November and I have had great success since. Check out other runs and configurations</p><p><a href="http://www.svtperformance.com/forums/showthread.php?s=&threadid=65624" target="_blank">Here</a></p><p></p><p>Current mods include: Apten ported blower w/ 2.80, BF idlers, 12" conical, Flowmaster cat-back and Predator. The only additional mods this time round were the Apten port, a 2.80 vs. 2.85 and I updated my predator to version R12, same tune as before just added a little fuel. There was an approximate 25 degree difference between this dyno day and the dyno I did in January. </p><p>Blue = Saturdays run (483HP/471TQ) Red = January dyno (441HP/460TQ) dyno</p><p><img src="http://members.cox.net/mwatrous/Car%20Pics/Graph4.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p> I am very pleased with the new power; Apten apparently has done their homework because this blower port job is second to pulley change as far as bang for the buck.</p><p></p><p>I only experienced one problem. My second run she detonated down low. A/F was right on the money so all that was left was to check timing. I made no timing adjustments from my last dyno and had data logged with the predator on various occasions to check timing (See data using Excel <a href="http://members.cox.net/mwatrous/Car%20Pics/WOT_Gas.xls" target="_blank">WOT_Gas.xls</a>). Remember this dyno run was using the same tune I used previous with only adjustment for A/F. Saturday's dyno run yielded an increase in peak timing by 2.5 degrees (See data using Excel <a href="http://members.cox.net/mwatrous/Car%20Pics/WOT_Dyno.xls" target="_blank">WOT_Gas.xls</a>). So in conclusion it looks like the Predator flash update to version R12 smoothed out my A/F but jacked my timing. </p><p></p><p>Dyno sheet from both runs Saturday. Notice the second run (Blue) between 2k and 3k RPM. The detonation was audible and is the only time I have heard my car detonate. I have since adjusted the timing and checked all the plugs and no visual damage can be detected. All is well just a little freaky and general concern for others using the flash update version R12 on their Predators. </p><p><img src="http://members.cox.net/mwatrous/Car%20Pics/Graph5.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>EDIT: I do not mean to imply that Diablo Sport had done anything wrong or say that they put out crappy tunes. On the contrary I am very happy with my tune but, either user error on my part (most likely) or something changed with the upgrade. Just a little GO CHECK YOUR TIMING if you have done the R12 update. </p><p></p><p>I should have some video in the next couple of days...</p><p></p><p>M@</p></blockquote><p></p>
[QUOTE="Snake-Shadow, post: 1111348, member: 9148"] Over the weekend I went to the Xtreme Motorsports dyno day On Saturday. Thanks Chad, Bill and all the techs. It was great everyone was making good power and even I dynoed higher than expected. My DYNO QUEEN journey started last November and I have had great success since. Check out other runs and configurations [URL=http://www.svtperformance.com/forums/showthread.php?s=&threadid=65624]Here[/URL] Current mods include: Apten ported blower w/ 2.80, BF idlers, 12" conical, Flowmaster cat-back and Predator. The only additional mods this time round were the Apten port, a 2.80 vs. 2.85 and I updated my predator to version R12, same tune as before just added a little fuel. There was an approximate 25 degree difference between this dyno day and the dyno I did in January. Blue = Saturdays run (483HP/471TQ) Red = January dyno (441HP/460TQ) dyno [IMG]http://members.cox.net/mwatrous/Car%20Pics/Graph4.jpg[/IMG] I am very pleased with the new power; Apten apparently has done their homework because this blower port job is second to pulley change as far as bang for the buck. I only experienced one problem. My second run she detonated down low. A/F was right on the money so all that was left was to check timing. I made no timing adjustments from my last dyno and had data logged with the predator on various occasions to check timing (See data using Excel [URL=http://members.cox.net/mwatrous/Car%20Pics/WOT_Gas.xls]WOT_Gas.xls[/URL]). Remember this dyno run was using the same tune I used previous with only adjustment for A/F. Saturday's dyno run yielded an increase in peak timing by 2.5 degrees (See data using Excel [URL=http://members.cox.net/mwatrous/Car%20Pics/WOT_Dyno.xls]WOT_Gas.xls[/URL]). So in conclusion it looks like the Predator flash update to version R12 smoothed out my A/F but jacked my timing. Dyno sheet from both runs Saturday. Notice the second run (Blue) between 2k and 3k RPM. The detonation was audible and is the only time I have heard my car detonate. I have since adjusted the timing and checked all the plugs and no visual damage can be detected. All is well just a little freaky and general concern for others using the flash update version R12 on their Predators. [IMG]http://members.cox.net/mwatrous/Car%20Pics/Graph5.jpg[/IMG] EDIT: I do not mean to imply that Diablo Sport had done anything wrong or say that they put out crappy tunes. On the contrary I am very happy with my tune but, either user error on my part (most likely) or something changed with the upgrade. Just a little GO CHECK YOUR TIMING if you have done the R12 update. I should have some video in the next couple of days... M@ [/QUOTE]
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Dyno w/ Apten 2.80 and Predator v R12 (Long)
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