low compression 548 dyno testing has begun!!
04-06-2017 | 02:38 PM
#321
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From: Hemlock, MI
Thats really cool, wonder if it has chambers or baffles in it, looks like a GREAT way to test wet exhaust too, i have to assume it has some kind of sump in bottom to colkect water then pump it back to supply tank? Mark rinda told me to bury a septic tank w sump pump and dump water into it but i poured ALOT of new concrete before getting dyno and not going to tear it out. So far i spent 8000 putting a new well in (needed one anyways) , 2000+ on 8 02 sensor system, then bought regulated power supply to batterys, mercruiser cannon plug harness, 3000 on data aquisition, regulated power supply to run it, computer, flat screen, sensors etc. Next purchase will be ducted air supply to push heat down and away from exhaust then if it starts making money will build a addition and cell on side of building, wet exhaust recovery tank and if brake ever goes bad buy bigger brake (everything elses just about is new)
04-06-2017 | 06:35 PM
#322
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From: Lago Vista TX
.. (sorry, best vid I have of it... )
https://www.youtube.com/watch?v=frOinsWwKpw
04-12-2017 | 01:31 PM
#324
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Posts: 7,317
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From: frankenmuth michigan
Next step is installing stock 500 efi intake then installing modded pieces one at a time. We have set the bar high though at 695 muffled hp so chances of the modded 500 intake coming remotely close to that are slim and none, nevertheless I have 30 hours and 2800$ in doing the 500 intakes between buying two of them, modding one, buying tb adapter, buying giant tb etc. Norm has to test a sb with stromberg 97s on it for stromberg in very near future, we are swamped with shop work so just finished gathering final pieces for new data aquisition on dyno, going to pull 540 off dyno, mod oil pan trap doors to see IF it can be made to work good enough to use in boat. Will post updates as they come, Smitty
04-12-2017 | 01:36 PM
#325
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From: frankenmuth michigan
..and it looks REALLY awesome on a cool morning with 8 mufflers blowing steam in the air..
.. (sorry, best vid I have of it... )
https://www.youtube.com/watch?v=frOinsWwKpw
.. (sorry, best vid I have of it... )
https://www.youtube.com/watch?v=frOinsWwKpw
https://www.youtube.com/watch?v=y8nFoATJJOg
04-12-2017 | 01:48 PM
#326
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Posts: 11,332
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From: chicago
My buddy Joes 522, crappy edelbrock heads, with M4. That thing whined so loud just at idle your ears would hurt.
https://youtu.be/XJ1I_NtxVK0
https://youtu.be/XJ1I_NtxVK0
04-12-2017 | 01:54 PM
#327
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Joined: Apr 2005
Posts: 2,150
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From: Northport N.Y.
My buddy Joes 522, crappy edelbrock heads, with M4. That thing whined so loud just at idle your ears would hurt.
https://youtu.be/XJ1I_NtxVK0
https://youtu.be/XJ1I_NtxVK0
04-12-2017 | 02:04 PM
#328
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Posts: 11,332
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From: chicago
04-12-2017 | 04:32 PM
#329
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Posts: 7,317
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From: frankenmuth michigan
Thats got a pretty big upper pulley on it too, to make the big numbers i did w my m3sc i had to turn it 60,000 rpms, 3.70 pulley, not much contact area for belt wrap, always an issue!
04-12-2017 | 04:57 PM
#330
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Posts: 922
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From: Lago Vista TX
I run a 7.5" lower and a 5.25" upper pulley. 4.44 step up.(not self contained) 38,057 RPM impeller speed..
My MAX impeller speed is 48,000 so still have some room to grow
Smitty, If I recall, you were just a bit past you max impeller speed..
Haven't run it in the boat yet, but didn't notice any belt slip running on the dyno for two days...
Last edited by Boatally Insane; 04-12-2017 at 05:03 PM.
