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<blockquote data-quote="tt335ci03cobra" data-source="post: 15280781" data-attributes="member: 68944"><p>I love my late 2015 custom stage 3 grinds. They rock.</p><p></p><p>I guesstimate that at just 10psi of boost, of the 120whp I gained on my new combo, vs my last at 10psi, at least 60+whp of it is due to these grinds.</p><p></p><p>I changed many parts, but to give an idea, I lost no mid range, and now on 10psi, I make the power I made before on 15psi. </p><p></p><p>To be honest, I'm on 9.6psi, and a soft break in tune, limited to 6700. My entire combo is specced to be happiest from 4000-8000, particularly 6-8k. </p><p></p><p>With safe and soft perimeters, we're easily making 720whp at 6700rpm right now on pump gas and 9.6psi. Before we made 600whp on 9psi with the 5.4 and 57's on a solid/optimized tune. </p><p></p><p>I'm pretty sure a solid/optimum tune and 7500-8000rpm would yield 775-800whp on our current combo. </p><p></p><p>The crazy part is...</p><p>-these turbos want 18-27psi, .70 ar, t4 etc</p><p>-these heads want volume... 370cfm caverns</p><p>-these cams like "20-30psi". </p><p></p><p>I can't wait to turn up the wick and see what happens...</p><p></p><p>Review/satisfaction wise:</p><p>-all info was correct and easy to degree!</p><p>-the lope is bad the f*ck ass for a 4v idle. It has great chop and burble, but still is smooth to drive.</p><p>-low end torque is still great. 250wtq at 1800rpm, 300wtq at 2500rpm. That's about stock 03 cobra territory, not quite. It's well above stock 05-09 gt territory though. I have 3.73's, which complement my redline. It's honestly a joy. Rips and grips too.</p><p>-Tuning for the cams wast bad at all.</p><p>-customer service was exceptional.</p><p></p><p>Thank you guys, I can't say enough of how pleased I am.</p></blockquote><p></p>
[QUOTE="tt335ci03cobra, post: 15280781, member: 68944"] I love my late 2015 custom stage 3 grinds. They rock. I guesstimate that at just 10psi of boost, of the 120whp I gained on my new combo, vs my last at 10psi, at least 60+whp of it is due to these grinds. I changed many parts, but to give an idea, I lost no mid range, and now on 10psi, I make the power I made before on 15psi. To be honest, I'm on 9.6psi, and a soft break in tune, limited to 6700. My entire combo is specced to be happiest from 4000-8000, particularly 6-8k. With safe and soft perimeters, we're easily making 720whp at 6700rpm right now on pump gas and 9.6psi. Before we made 600whp on 9psi with the 5.4 and 57's on a solid/optimized tune. I'm pretty sure a solid/optimum tune and 7500-8000rpm would yield 775-800whp on our current combo. The crazy part is... -these turbos want 18-27psi, .70 ar, t4 etc -these heads want volume... 370cfm caverns -these cams like "20-30psi". I can't wait to turn up the wick and see what happens... Review/satisfaction wise: -all info was correct and easy to degree! -the lope is bad the f*ck ass for a 4v idle. It has great chop and burble, but still is smooth to drive. -low end torque is still great. 250wtq at 1800rpm, 300wtq at 2500rpm. That's about stock 03 cobra territory, not quite. It's well above stock 05-09 gt territory though. I have 3.73's, which complement my redline. It's honestly a joy. Rips and grips too. -Tuning for the cams wast bad at all. -customer service was exceptional. Thank you guys, I can't say enough of how pleased I am. [/QUOTE]
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