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Originally Posted by SB
(Post 4545171)
5 psi I'd be removing the filter and cutting it open looking for things. Hope not, but ....
If motor is okay, check oil psi with mechanical gauge. |
15-40 rotella t4. Will be switching to 20-50 vr1 synthetic soon
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Ran the boat this weekend. Oil pressure is good. We switched from rotella to vr1. The previous issue was overfull by qt and half. Timing was set to 36 total with max rpm at 5200. Blowers are on the way. We tracked down a pair of b and m 250.
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Originally Posted by mggdoors
(Post 4546830)
Ran the boat this weekend. Oil pressure is good. We switched from rotella to vr1. The previous issue was overfull by qt and half. Timing was set to 36 total with max rpm at 5200. Blowers are on the way. We tracked down a pair of b and m 250.
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Originally Posted by SecondWind
(Post 4550360)
Curious to see new performance specs with the huffers on board. Your dominator should be a rocket this year when you get it dialed in. Perfect amount of power for that hull IMHO. I've always been a huge fan of the way that boat looks on the water.
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I'd find it pretty damn coincidental, that BOTH engine builds, can only turn the same props to exactly 5100rpm wot.
We have a 9.6:1 vortec headed combo, and 230/236 cam, and a 8.3:1 EQ headed headed combo, with a 236/244 cam. Over a full point less static, different cams, different intakes, completely different heads, and they both make the EXACT same power at 5000/5100? 20-25hp is usually 100RPM in a boat. I have seen aftermarket rev limiters, come in WAAAAY early and start killing power. MGDOORS, how do the new engines feel? Do they feel stronger than the old ones say from 50mph to 70mph? What do you have for flame arrestors and hatch ventilation? What exhaust is on them? |
Those 32's would crack 80mph with HP500's all day. I find it hard to believe, that even with 8.3:1 (hp500 was what, 8.75:1), better cylinder heads (both around 320cc), slightly bigger cam, 80cfm smaller carbs, both single plane intakes, would knock 8-10 plus mph off the boat. What altitude are you running at?
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Originally Posted by MILD THUNDER
(Post 4550409)
Those 32's would crack 80mph with HP500's all day. I find it hard to believe, that even with 8.3:1 (hp500 was what, 8.75:1), better cylinder heads (both around 320cc), slightly bigger cam, 80cfm smaller carbs, both single plane intakes, would knock 8-10 plus mph off the boat. What altitude are you running at?
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Gil dry exhaust. Std hatch ventilation two on top two on sides one in rear. Was running kn 14x5. With blowers we are going to 3x12 bourbon
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What kind of rpm gain can i expect from 5-6 boost on the blowers with same props
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