Where is a good place to get an Engine Dyno
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Where is a good place to get an Engine Dyno

  1. #1
    Ryan Smith Troublenose's Avatar
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    Thumbs up Where is a good place to get an Engine Dyno

    I live in Fairfield, ca (Nor-cal) Thinking Im going to pull the motor out of my boat and just pay someone to engine dyno it rather than spend a summer trying to dial the carbs in on my boat. Where do I go and what am I going to spend? Thanks for any help

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    I believe there is a speed shop in Sacramento that does engine dyno work & u may not have to pull the motor from the boat ...i think most dyno places charge by the hour!...someone in the know will chime in ...just trying to help

    FastRat

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    Spiral out MikeF's Avatar
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    Send your carbs here............

    C&JCarburators

    Give him all the information about your engine........and you shouldn't have a problem after that.


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    Senior Member Woods 017's Avatar
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    Joey Grose is in Lodi builds nice stuff and has a dyno

    http://www.groseracing.com/index.html

    If you want to travel down south Paul Pfaff's or Westtech both offer dyno services.

    http://www.pfaffengines.com/

    http://www.westechperformance.com/

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    Ryan Smith Troublenose's Avatar
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    Thank you all for the help!

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    Distinguished Member David 519's Avatar
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    +1 on Joey Grose. Nobody in NorCal knows more about making an engine run well in a boat.
    Something to think about though... engine dynos are best for sorting out full throttle applications. Typically you'll still have to work out all the part throttle performance aspects.
    Most dyno guys charge anywhere from $600 and up. Expect to use most of a day for set up and pulls. Make sure to bring plenty of fuel, carb jets, squirters and anything else you may want to test.
    Before you consider using a carb customizer, do a search on that subject. Some people like them, many do not. I've been down that path with a couple racing programs. My experience has not been positive at all and I've dealt with several "big name" carb gurus. My experience is they can make more HP, but at the expense of driveabilty. I've had the best luck with out of the box Holley HP and Quickfuel carbs.
    Good luck.
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

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    Senior Member bp298's Avatar
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    Quote Originally Posted by David 519 View Post
    Before you consider using a carb customizer, do a search on that subject. Some people like them, many do not. I've been down that path with a couple racing programs. My experience has not been positive at all and I've dealt with several "big name" carb gurus. My experience is they can make more HP, but at the expense of driveabilty. I've had the best luck with out of the box Holley HP and Quickfuel carbs.
    Good luck.
    or... , learn how the carbs work and how to tune 'em yourself...

  10. #8
    Senior Member Factory1's Avatar
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    I couldn't agree more with what David has said. He hit several nails on the head. I would leave your carbs alone, your gonna be rolling the dice with alot of carb shops. Out of the box Holleys properly tuned will work great 99% of the time. Since dyno's are typically pulling from around 3,500 rpm up, your not going to get your accelerator pumps set up right on the dyno. The shop we use currently gets $800 a session. That buys you the day to set it up, and the day to run it. If your not going to be trying different parts or cam timing or anything else, it's a big chunk of change for optimum jetting and timing. Plus tuning it on the lake yourself, you learn. I've put together a couple of boat/motor combo's now that had tuning and set up issues when I first built them. They took me many outings each to figure out the things that were wrong, but I learned from it. There were times I felt like giving up, the same problem outing after outing. You'd go home dejected and go back to the drawing board as to why it was doing it. Then it would come to you, you were sure of it, so you would make the mod, hit the lake, still screwed up . You'll eventually get that tune up if you stick to it, then you will have the knowledge to do it again, only alot faster. Don't get me wrong, the dyno is a great tool, I'm not knocking it, if you have the money go for it. But like David said, it is not your boat, and you will be upset if you spend $800 then you put it back in your boat, knock it in gear and it dies, or nail it from idle and it still stumbles. Just some thoughts of a Dip Sh*t! Good luck! F1~

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    Senior Member Factory1's Avatar
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    Quote Originally Posted by bp298 View Post
    or... , learn how the carbs work and how to tune 'em yourself...
    +1!!!

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    Ryan Smith Troublenose's Avatar
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    Yea the carbs are staying just how they are. Just need to get a box of jets and gaskets and I guess I will just have to learn to be patient! I've been very successful making my Harley fast and this boat thing is all different. Another guy I know shot this idea past me. He said it may not be the motor is that far out of tune, it may be geared and proped wrong which would screw the program up too. Thank you guys for all the great input . Really Thank you! look forward to giving you guys some triple digit GPS speeds soon. And for those with the smart ass comments I'll make sure I say something stupid when you post a question too

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    Quote Originally Posted by Troublenose View Post
    Yea the carbs are staying just how they are. Just need to get a box of jets and gaskets and I guess I will just have to learn to be patient! I've been very successful making my Harley fast and this boat thing is all different. Another guy I know shot this idea past me. He said it may not be the motor is that far out of tune, it may be geared and proped wrong which would screw the program up too. Thank you guys for all the great input . Really Thank you! look forward to giving you guys some triple digit GPS speeds soon. And for those with the smart ass comments I'll make sure I say something stupid when you post a question too
    I would take it to PrecisionCraft Marine & see what Joe has to say about what you got...you won't be sorry & he's real close..

  14. #12
    Senior Member Factory1's Avatar
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    Motor related issues you have ask in here, should be able to get them answered, set-up questions, gears, prop, etc, ask in v-drive forum. Between the two you should get enough info to point you in the right direction. Buy a book on whatever brand carbs you have, it can take you a long ways in the right direction. Last agreeing with Sangster, Joe Shelfo can look your boat over and tell you if anything needs to be changed on it quicker than the tow over there! Good luck, F1~

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    Distinguished Member David 519's Avatar
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    Quote Originally Posted by bp298 View Post
    or... , learn how the carbs work and how to tune 'em yourself...
    Yea, and +1 on what Bob said

    Quote Originally Posted by Troublenose View Post
    Yea the carbs are staying just how they are. Just need to get a box of jets and gaskets and I guess I will just have to learn to be patient! I've been very successful making my Harley fast and this boat thing is all different. Another guy I know shot this idea past me. He said it may not be the motor is that far out of tune, it may be geared and proped wrong which would screw the program up too. Thank you guys for all the great input . Really Thank you! look forward to giving you guys some triple digit GPS speeds soon. And for those with the smart ass comments I'll make sure I say something stupid when you post a question too
    When my son went Jr. Dragster racing, I thought the same thing. Been drag racing most of my life, how hard can it be. Man, was I wrong. Getting a hot rodded lawn mower engine to be consistant was a MAJOR learning experience. Another instance where the phrase "how hard can that be??" got me in trouble.
    Back to the OP. If your boat is over geared/propped it will want to bog when you hit the throttle. Your motor may be fine. Just went through this with a buddy's Cole over the summer. Had a mild dead spot when you drilled the throttle. Tried a few props and found a combo that works. Boat runs really good and we never touched the engine.
    Lots of good help around here . Good luck.
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

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    Senior Member Morg's Avatar
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    Lots of great info in this thread.

    If you are set on the Dyno, Joey is the guy who can get you the closest. Go to any race & ask for help with a carb bog, most will point you to Joey. His flat bottom experience will get you the closest. Especially considering all aspects of boat set up like David hit on.

    The way your boat loads the motor is a huge factor. Tough to duplicate in a dyno room.

    The main thing hear is, learning. Some people can listen to someone & pick up what they are telling you through there experience. Most will not get it until they actually experience the struggle. The hard part is to not get lost listening to to many & believing in magic & secrets.

    You will be amazed at what you can learn during a day at the lake if you stay focused & do some serious testing. You can learn more about tunning your boat that day than days in a dyno room.
    It is supposed to be hard, if it wasn't hard everyone would do it. The "hard" is what makes it great. - Jimmy Dougan

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    Akita's & Boats: http://s255.photobucket.com/albums/hh149/K-Morg/

    Quote Originally Posted by Quickjet View Post
    Ok....I'm retarted....so what...
    Quote Originally Posted by Cole Man II View Post
    Tony, Tony, Tony....

    If dragboats were gay, that would make you Harvey Milk...
    Quote Originally Posted by steelcomp View Post
    Well if you want to make up a bunch of numbers to be right, then yes, that works.

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