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Epic Build Thread: CPr Single Turbo + MMR Pro Mod 1500 block with extras!!
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<blockquote data-quote="CPRsm" data-source="post: 14235747" data-attributes="member: 81705"><p>The white one ran an 88. But I don't think it had the turbine size or design to max the compressor.</p><p></p><p>But the 80mm fins on these new turbos, from hub to tip is longer than most 88mm's. And they have made just why of 1300rwhp on larger engines. And over 1300 on smaller engines. Smaller engines keep back pressure ratios in check better. </p><p>But the newer wheels have the nuts integrated to the compressor wheel. All one piece, making the fin length even longer. You can see the difference below.</p><p></p><p></p><p></p><p>[ATTACH=full]583086[/ATTACH]</p><p></p><p></p><p></p><p>[ATTACH=full]583087[/ATTACH]</p><p></p><p>At this point not sure what the turbos are really capable of HP wise. Et wise, the 76 is allllllmost in the 4's in the 1/8. You can see a slot on the outside of the fins in the first pic. This surge slot was worth a ton of power. But these race covers seem to dyno very funny. Back to back testing modified vs unmodified cover, modified showed a loss in power. But at the track, same modified cover showed a 100rwhp+ gain by the mph increase. Dasan's car only dynoed 757rwhp on 13psi. But it ran 151mph on 12.7psi. 757rwhp is almost 200hp low for that kind of mph. Where ever the power falls w these turbos, I think we'll be testing the strength of a few parts <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="CPRsm, post: 14235747, member: 81705"] The white one ran an 88. But I don't think it had the turbine size or design to max the compressor. But the 80mm fins on these new turbos, from hub to tip is longer than most 88mm's. And they have made just why of 1300rwhp on larger engines. And over 1300 on smaller engines. Smaller engines keep back pressure ratios in check better. But the newer wheels have the nuts integrated to the compressor wheel. All one piece, making the fin length even longer. You can see the difference below. [ATTACH=full]583086[/ATTACH] [ATTACH=full]583087[/ATTACH] At this point not sure what the turbos are really capable of HP wise. Et wise, the 76 is allllllmost in the 4's in the 1/8. You can see a slot on the outside of the fins in the first pic. This surge slot was worth a ton of power. But these race covers seem to dyno very funny. Back to back testing modified vs unmodified cover, modified showed a loss in power. But at the track, same modified cover showed a 100rwhp+ gain by the mph increase. Dasan's car only dynoed 757rwhp on 13psi. But it ran 151mph on 12.7psi. 757rwhp is almost 200hp low for that kind of mph. Where ever the power falls w these turbos, I think we'll be testing the strength of a few parts :D [/QUOTE]
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Epic Build Thread: CPr Single Turbo + MMR Pro Mod 1500 block with extras!!
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