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SVTPerformance's Chain of Restaurants
Time Slip Bar
tvs numbers not happy
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<blockquote data-quote="Rodeheavers" data-source="post: 12952869" data-attributes="member: 149847"><p>Hey guys, I hope you can see this is a case of mistaken identity. </p><p>First, you all didnt get the other side of this story, this car came to me with a VMP tune that only made 450rwhp and the log showed only 14 degrees of timing with a a/f curve that was so fat it pegged my gauge.</p><p>Second, I dont want to be a party pooper, but when I view data on my dyno, I view it with a filter value of 1%. </p><p>If you look at the dyno graph Charlie posted the filter value is 1%. The reason I do this is to see as much raw (unfiltered data) as I can, this way my corrections are better.</p><p>I am posting 3 dyno graphs, \</p><p>The first is the same dyno graph as Charlie posted earlier, the only change I made was I turned the filter up to 99% as <em>MOST</em> shops do, you can see it makes his graph look super smooth as pretty.</p><p>The second set of graphs are from another customers car that Lund tuned on my dyno a while ago. Look at his a/f curve unfiltered, and then look at it filtered. There is a huge difference!</p><p></p><p>I dont like to do "glory runs" on customers cars just to try and get them XXX number. However, I could see Charlie was not happy with his numbers so I did add 1 degree of timing to get it to 16 degrees and we let the car cool down and did a glory run, only to be rewarded with LESS hp, the car dropped 4HP, so from a tuning stand point, the car did not want anymore timing. Most tuners will max a car out on the dyno, then take out 2 degrees for safety, espesially an 03-04 cobra that has no cooling head mod and stock internals. I am not in the business to blow peoples cars up. I have very happy customers with very fast cars! I hope this helps with the confusion. And the main reason I gave Charlie a graph with the a/f looking ilke that is because when I filter the data, it also filters the HP/TQ/Boost. so if you look closly at the graphs, you will see the differences. Oh, and my dyno is pretty stingy! A 99-04 car that makes over 500rwhp will run low 11s- high 10s. One of my personal cars makes 580rwhp on my dyno and it has gone 10.20@134 with me (a horrible stick driver) driving it. </p><p></p><p>[ATTACH=full]451005[/ATTACH]</p><p></p><p>Lund-unfiltered</p><p>[ATTACH=full]451006[/ATTACH]</p><p></p><p>Lund filtered</p><p>[ATTACH=full]451007[/ATTACH]</p></blockquote><p></p>
[QUOTE="Rodeheavers, post: 12952869, member: 149847"] Hey guys, I hope you can see this is a case of mistaken identity. First, you all didnt get the other side of this story, this car came to me with a VMP tune that only made 450rwhp and the log showed only 14 degrees of timing with a a/f curve that was so fat it pegged my gauge. Second, I dont want to be a party pooper, but when I view data on my dyno, I view it with a filter value of 1%. If you look at the dyno graph Charlie posted the filter value is 1%. The reason I do this is to see as much raw (unfiltered data) as I can, this way my corrections are better. I am posting 3 dyno graphs, \ The first is the same dyno graph as Charlie posted earlier, the only change I made was I turned the filter up to 99% as [I]MOST[/I] shops do, you can see it makes his graph look super smooth as pretty. The second set of graphs are from another customers car that Lund tuned on my dyno a while ago. Look at his a/f curve unfiltered, and then look at it filtered. There is a huge difference! I dont like to do "glory runs" on customers cars just to try and get them XXX number. However, I could see Charlie was not happy with his numbers so I did add 1 degree of timing to get it to 16 degrees and we let the car cool down and did a glory run, only to be rewarded with LESS hp, the car dropped 4HP, so from a tuning stand point, the car did not want anymore timing. Most tuners will max a car out on the dyno, then take out 2 degrees for safety, espesially an 03-04 cobra that has no cooling head mod and stock internals. I am not in the business to blow peoples cars up. I have very happy customers with very fast cars! I hope this helps with the confusion. And the main reason I gave Charlie a graph with the a/f looking ilke that is because when I filter the data, it also filters the HP/TQ/Boost. so if you look closly at the graphs, you will see the differences. Oh, and my dyno is pretty stingy! A 99-04 car that makes over 500rwhp will run low 11s- high 10s. One of my personal cars makes 580rwhp on my dyno and it has gone 10.20@134 with me (a horrible stick driver) driving it. [ATTACH=full]451005[/ATTACH] Lund-unfiltered [ATTACH=full]451006[/ATTACH] Lund filtered [ATTACH=full]451007[/ATTACH] [/QUOTE]
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Time Slip Bar
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