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The Terminator
Engine/Tuning
AM BAMA tunes
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<blockquote data-quote="AMChrisRose" data-source="post: 10905686" data-attributes="member: 106686"><p>So after all this, I do want to say that I do think that it's worth going to get your tunes checked by a dyno. Do I think that you NEED to? Not as long as you go with a reputable company and make sure that you fill out all of your information accurately, use good quality fuel at all time and keep the car mechanically sound. At least the last two things on that list will STILL have to be done, even if you had your car dyno tuned. Do I think that it's not a bad idea? Sure, it's not a bad idea.</p><p></p><p>So when Chad (Moko) called us out, we offered to send him a free tune and pay to have him experiment the results at his local dyno. In the mean time, we realized that Chad is a really cool guy, and we're glad that he did this for us. We ended up not only uncovering a slight lean condition in his existing tune, but proving the worth of Bama tunes to him, and hopefully a few others will take notice.</p><p></p><p>So the run conditions on the dyno were <strong>113 degrees</strong>! The intake air temps were 160, and engine coolant temp saw a peak of 208. It was a hot day, and the car pulled about 4 degrees of timing. With 91 octane on a 2.81 upper pulley and JLT, the Bama 91 tune commands 20 degrees, and we only saw 16 degrees of timing. The air/fuel ratio on our mail order tune starts off at 11.8-12.0, drops down to 11.3-11.4, and comes back up to 11.7-11.8 again. I'm pretty happy with that, considering we've never touched Chad's car before, and it was our mail-order tune from literally half way across the country. This is what I wanted to prove about our tunes. Here's the graph!</p><p></p><p><img src="http://files.americanmuscle.com/forum/bama1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>After that, he loaded the other tune in the car and let the car cool down, used some ice, and made another pull. The other tune went down to the 12.0 range, but came back up to 12.5-12.6 for a 1500-2000rpm window and went back down to 12.0 at the top of the run. It was a little weird, and while it's definitely something I would correct, I can see that it wasn't insanely far off enough to where the car was in danger of blowing up. While it's definitely not correct, I guess I've just seen much worse from other places. Either way, I feel our tune was a little more accurate. And obviously, there's pulled a buttload of timing too, as we saw almost identical horsepower/torque.</p><p></p><p><img src="http://files.americanmuscle.com/forum/diablo1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>I'm all for questions!</p></blockquote><p></p>
[QUOTE="AMChrisRose, post: 10905686, member: 106686"] So after all this, I do want to say that I do think that it's worth going to get your tunes checked by a dyno. Do I think that you NEED to? Not as long as you go with a reputable company and make sure that you fill out all of your information accurately, use good quality fuel at all time and keep the car mechanically sound. At least the last two things on that list will STILL have to be done, even if you had your car dyno tuned. Do I think that it's not a bad idea? Sure, it's not a bad idea. So when Chad (Moko) called us out, we offered to send him a free tune and pay to have him experiment the results at his local dyno. In the mean time, we realized that Chad is a really cool guy, and we're glad that he did this for us. We ended up not only uncovering a slight lean condition in his existing tune, but proving the worth of Bama tunes to him, and hopefully a few others will take notice. So the run conditions on the dyno were [B]113 degrees[/B]! The intake air temps were 160, and engine coolant temp saw a peak of 208. It was a hot day, and the car pulled about 4 degrees of timing. With 91 octane on a 2.81 upper pulley and JLT, the Bama 91 tune commands 20 degrees, and we only saw 16 degrees of timing. The air/fuel ratio on our mail order tune starts off at 11.8-12.0, drops down to 11.3-11.4, and comes back up to 11.7-11.8 again. I'm pretty happy with that, considering we've never touched Chad's car before, and it was our mail-order tune from literally half way across the country. This is what I wanted to prove about our tunes. Here's the graph! [IMG]http://files.americanmuscle.com/forum/bama1.jpg[/IMG] After that, he loaded the other tune in the car and let the car cool down, used some ice, and made another pull. The other tune went down to the 12.0 range, but came back up to 12.5-12.6 for a 1500-2000rpm window and went back down to 12.0 at the top of the run. It was a little weird, and while it's definitely something I would correct, I can see that it wasn't insanely far off enough to where the car was in danger of blowing up. While it's definitely not correct, I guess I've just seen much worse from other places. Either way, I feel our tune was a little more accurate. And obviously, there's pulled a buttload of timing too, as we saw almost identical horsepower/torque. [IMG]http://files.americanmuscle.com/forum/diablo1.jpg[/IMG] I'm all for questions! [/QUOTE]
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