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2020+ Shelby GT500 Mustang
2020 -vs 2014 GT500
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<blockquote data-quote="tt335ci03cobra" data-source="post: 16269335" data-attributes="member: 68944"><p>Revs. 5.4 and 5.8 have a 4.165” stroke which limits revs, and where power is made for safety. Trinity Gt500’s peak around 66-6700rpm and taper up a few hp by 6800, level off.</p><p></p><p>The 2020 5.2 has a 3.8” stroke iirc and 3.75” bore, and revs clean to 8000, or in this case 7500. Peak power is at 7400.</p><p></p><p>From there, the heads are much better on this gt500 being coyote architecture vs modular architecture.</p><p></p><p>The real problem with producing power from revs on the trinity is the stroke, and further it had 9.0/1 vs the 2020 9.5/1 compression.</p><p></p><p>Lastly, the computer on the gt500 was great, but the coyote based stuff is dual wideband and easier to safely make more power all the time.</p><p></p><p>I have a full tilt 5.3L 3.7x3.8” modular with heavily ported gt500 heads, stage 3 cams, twin 62’s, and an fr500c on my 03 cobra at 9.3/1, and NA it’s good for about 450-475whp. On 10.75psi it makes 813whp, 1208whp 30psi. Thing is if I did the exact same with the coyote stuff as a base, it would be much torquier at idle to 4000rpm (the weakest spot of the modular power production) and pick up 50-100whp up top due to better head flow.</p></blockquote><p></p>
[QUOTE="tt335ci03cobra, post: 16269335, member: 68944"] Revs. 5.4 and 5.8 have a 4.165” stroke which limits revs, and where power is made for safety. Trinity Gt500’s peak around 66-6700rpm and taper up a few hp by 6800, level off. The 2020 5.2 has a 3.8” stroke iirc and 3.75” bore, and revs clean to 8000, or in this case 7500. Peak power is at 7400. From there, the heads are much better on this gt500 being coyote architecture vs modular architecture. The real problem with producing power from revs on the trinity is the stroke, and further it had 9.0/1 vs the 2020 9.5/1 compression. Lastly, the computer on the gt500 was great, but the coyote based stuff is dual wideband and easier to safely make more power all the time. I have a full tilt 5.3L 3.7x3.8” modular with heavily ported gt500 heads, stage 3 cams, twin 62’s, and an fr500c on my 03 cobra at 9.3/1, and NA it’s good for about 450-475whp. On 10.75psi it makes 813whp, 1208whp 30psi. Thing is if I did the exact same with the coyote stuff as a base, it would be much torquier at idle to 4000rpm (the weakest spot of the modular power production) and pick up 50-100whp up top due to better head flow. [/QUOTE]
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