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2015+ S550 Mustangs
2015+ S550 Mustang Talk
So - my 2015 Auto gained 54lbs.....but
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<blockquote data-quote="BMR Tech" data-source="post: 14396456" data-attributes="member: 124691"><p>Many angles, in approaching this post. I will try to make it short and easy.</p><p></p><p>The block issue, well, we do not necessarily know why they updated it. The OEM doesn't make a part for 1000+HP....with plans of the customers making that much. If they upgraded/dated the block...then for all we know, or don't, there could be something behind the reasoning there. Longevity concerns...warranty repairs affiliated with pistons/rings etc...</p><p></p><p>Here is a Coyote block, on the right....and an FRPP on the left. As you can see....the coolant passages around the cylinders are much "beefier" on the FRPP Block - and the '15 block appears to be somewhat similar (around the cylinders)...</p><p></p><p><img src="http://www.supermotors.net/getfile/962095/fullsize/new-left-old-right-coyote-block1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><strong>As for the IRS comment, it is funny that you say that. Personally, my 115K stock IRS handled this:</strong></p><p>[ATTACH=full]599843[/ATTACH]</p><p></p><p><strong>....doing this:</strong></p><p>[ATTACH=full]599844[/ATTACH]</p><p></p><p>Not that I disagree with ya....but I think there is more too it. I deal with an extreme amount of S197 owners, and can tell you - rarely do I get a customer who's car ran the time my above car ran, on their 8.8 without some serious modifications (manual trans cars) </p><p></p><p>Again, that was a stock 115K mile IRS. Nothing done to it to increase strength or reliability. It did have some very good suspension pieces, and of course I ran a slick at the track / Drag Radial on the street.</p><p></p><p>To touch on the pistons - I agree 1036%. However, I can understand. I mean, hyper pistons can handle some decent power. From my experiences with a Coyote.....MOST failures on a stock engine are either rod failures, or tune related. My opinion is that, the rods are the weakest part of the engine, followed by the pistons. Rarely do I see a "power" failure with these pistons, it is usually a tuning issue. </p><p></p><p>I don't think the stock pistons will handle 1000HP reliably. I do think they can make 800rwhp with a good tune, on E85 though. That is what I will be doing, so definitely pay attention to my build thread. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="BMR Tech, post: 14396456, member: 124691"] Many angles, in approaching this post. I will try to make it short and easy. The block issue, well, we do not necessarily know why they updated it. The OEM doesn't make a part for 1000+HP....with plans of the customers making that much. If they upgraded/dated the block...then for all we know, or don't, there could be something behind the reasoning there. Longevity concerns...warranty repairs affiliated with pistons/rings etc... Here is a Coyote block, on the right....and an FRPP on the left. As you can see....the coolant passages around the cylinders are much "beefier" on the FRPP Block - and the '15 block appears to be somewhat similar (around the cylinders)... [IMG]http://www.supermotors.net/getfile/962095/fullsize/new-left-old-right-coyote-block1.jpg[/IMG] [B]As for the IRS comment, it is funny that you say that. Personally, my 115K stock IRS handled this:[/B] [ATTACH=full]599843[/ATTACH] [B]....doing this:[/B] [ATTACH=full]599844[/ATTACH] Not that I disagree with ya....but I think there is more too it. I deal with an extreme amount of S197 owners, and can tell you - rarely do I get a customer who's car ran the time my above car ran, on their 8.8 without some serious modifications (manual trans cars) Again, that was a stock 115K mile IRS. Nothing done to it to increase strength or reliability. It did have some very good suspension pieces, and of course I ran a slick at the track / Drag Radial on the street. To touch on the pistons - I agree 1036%. However, I can understand. I mean, hyper pistons can handle some decent power. From my experiences with a Coyote.....MOST failures on a stock engine are either rod failures, or tune related. My opinion is that, the rods are the weakest part of the engine, followed by the pistons. Rarely do I see a "power" failure with these pistons, it is usually a tuning issue. I don't think the stock pistons will handle 1000HP reliably. I do think they can make 800rwhp with a good tune, on E85 though. That is what I will be doing, so definitely pay attention to my build thread. ;) [/QUOTE]
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So - my 2015 Auto gained 54lbs.....but
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