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SVT Shelby GT500
Shelby GT500 Stock Dyno Numbers
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<blockquote data-quote="ac427cobra" data-source="post: 4168207" data-attributes="member: 6247"><p>Last night I went to my Buddy Marv's speed shop, C&M Performance and we got the car up on the dyno. :-D We were both pretty excited! The car had just turned over 1,000 miles on the drive up to his shop! </p><p></p><p>Ok, here's the first dyno run. I was somewhat disappointed at the initial readings we had. 425/427 <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /> </p><p></p><p><img src="http://img214.imageshack.us/img214/6372/copyofshelbyscan1ra8.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Then, just to make sure we had an accurate baseline, we ran again. The results were 414/415 (sheet not attached) Now I know what everyone was talking about when they say the motor heat soaks easily.:cryying: </p><p></p><p>So, we then put the Corsa Axle-Backs on and gave her another run. It took us maybe 35 minutes or so to do that. So the car sat all tolled about 45 minutes or so? </p><p></p><p>The run with the Axle-Backs on was 427/427. (no sheet attached) Virtually ZERO gain (ok, two horsepower) from the axle-backs. VERY disappointing. The car sounded lots better but not worth the money in my book. And it has some nice tips on it to boot! So all was NOT lost on that! </p><p></p><p>Ok, so now I give Marv the go ahead for the tune. He gets on the computer and goes to hacking! The car originally had 12.5 degrees of timing and was running just a tad rich. </p><p></p><p>After the tune was loaded we ran again! This time we made some progress! 479/463 </p><p></p><p><img src="http://img165.imageshack.us/img165/921/copyofshelbyscan4an0.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>By now, the shop was getting warm. That run was 77 degrees. So without changing anything on the tune we decided to open up the shop and cool it off a bit. The car cooled nicely and responded to the cooler air in a positive manner knocking off our high of the night 499/481 <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue :p" loading="lazy" data-shortname=":p" />epper: <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue :p" loading="lazy" data-shortname=":p" />epper: </p><p></p><p><img src="http://img144.imageshack.us/img144/8868/copyofshelbyscan7ds2.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Marv saw the timing spike up a bit because of the cooler temps and he backed some timing out of it. </p><p></p><p>This is the final tune and our last run. 484/465</p><p></p><p><img src="http://img217.imageshack.us/img217/9271/copyofshelbyscan8gi6.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>So, it does not appear that RUTripping's horsepower claim (although it was not on a Dyno Jet) is not all that out of line IMHO? This car responds well to timing and I think if you put enough timing into it (which I would NOT recommend BTW!!) you could probably pull off a 80-90 HP gain!? Heck we got 75 on tune alone basically!! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /> I almost regret having put on the Corsa's, but the car does sound much better! </p><p></p><p>So, those are the numbers! I'm pretty happy with the way the car responded! </p><p></p><p>Once I get the JLT CAI, I think we will break the 500 hp barrier no problem! </p><p></p><p>I'm getting excited for this weekend!! :rockon: </p><p></p><p>:thumbsup: :coolman: :beer:</p></blockquote><p></p>
[QUOTE="ac427cobra, post: 4168207, member: 6247"] Last night I went to my Buddy Marv's speed shop, C&M Performance and we got the car up on the dyno. :-D We were both pretty excited! The car had just turned over 1,000 miles on the drive up to his shop! Ok, here's the first dyno run. I was somewhat disappointed at the initial readings we had. 425/427 :( [IMG]http://img214.imageshack.us/img214/6372/copyofshelbyscan1ra8.jpg[/IMG] Then, just to make sure we had an accurate baseline, we ran again. The results were 414/415 (sheet not attached) Now I know what everyone was talking about when they say the motor heat soaks easily.:cryying: So, we then put the Corsa Axle-Backs on and gave her another run. It took us maybe 35 minutes or so to do that. So the car sat all tolled about 45 minutes or so? The run with the Axle-Backs on was 427/427. (no sheet attached) Virtually ZERO gain (ok, two horsepower) from the axle-backs. VERY disappointing. The car sounded lots better but not worth the money in my book. And it has some nice tips on it to boot! So all was NOT lost on that! Ok, so now I give Marv the go ahead for the tune. He gets on the computer and goes to hacking! The car originally had 12.5 degrees of timing and was running just a tad rich. After the tune was loaded we ran again! This time we made some progress! 479/463 [IMG]http://img165.imageshack.us/img165/921/copyofshelbyscan4an0.jpg[/IMG] By now, the shop was getting warm. That run was 77 degrees. So without changing anything on the tune we decided to open up the shop and cool it off a bit. The car cooled nicely and responded to the cooler air in a positive manner knocking off our high of the night 499/481 :pepper: :pepper: [IMG]http://img144.imageshack.us/img144/8868/copyofshelbyscan7ds2.jpg[/IMG] Marv saw the timing spike up a bit because of the cooler temps and he backed some timing out of it. This is the final tune and our last run. 484/465 [IMG]http://img217.imageshack.us/img217/9271/copyofshelbyscan8gi6.jpg[/IMG] So, it does not appear that RUTripping's horsepower claim (although it was not on a Dyno Jet) is not all that out of line IMHO? This car responds well to timing and I think if you put enough timing into it (which I would NOT recommend BTW!!) you could probably pull off a 80-90 HP gain!? Heck we got 75 on tune alone basically!! :eek: I almost regret having put on the Corsa's, but the car does sound much better! So, those are the numbers! I'm pretty happy with the way the car responded! Once I get the JLT CAI, I think we will break the 500 hp barrier no problem! I'm getting excited for this weekend!! :rockon: :thumbsup: :coolman: :beer: [/QUOTE]
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