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Looking for 400hp on 383's

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Old 10-22-2012 | 08:08 AM
  #121  
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Originally Posted by mrfixxall
i take a string and duct tape...tape the string the the front pull it tight on the transom and tape it their and look for the hollow spot..
That'll do it. Lots of ways to get it done, pick your poison.
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Old 10-23-2012 | 10:11 PM
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Will do the hook thing ASAP ,I just couldn't get to the boat lately, but I did call a reputable local marine hi perf shop today to find out about rates to dyno test the engines and I was told $1500 per engine, is this reasonable ? Thought it was crazy, am I wrong?
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Old 10-23-2012 | 10:26 PM
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Originally Posted by Diego9040
Will do the hook thing ASAP ,I just couldn't get to the boat lately, but I did call a reputable local marine hi perf shop today to find out about rates to dyno test the engines and I was told $1500 per engine, is this reasonable ? Thought it was crazy, am I wrong?

Uhh wait..
I dont think so. 3000 sounds real steep.

More like 1000 for a full day in the dyno with 2 engines (if you dont have any problems)

Isn't your builder going to supply the labor?
I thought he was dynoing them? Dosnt he "have a guy"?

You want the day rate for the room maybe with with an operator thats just sticking - and your guys does the setup & tuning.(and you have to help him schlep and setup and pull the carbs and jet- no one gets it right on shot one. )

Shouldnt take more than a day and half for both engines even if you have to take the manifold off and reseat it on each one.

Dig a bit and find out who is doing what.

Sounds like Friday may not be the day.


UD
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Old 10-23-2012 | 10:38 PM
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Yeah, $1500 for both unless they need to make MAJOR changes and spend a ton of time.

I'll probably get crucified for saying it, but why not just dyno one and copy the changes to the other motor? It would be nice to run both however just to check for leaks/ minor isssues etc. I'd think your engine guy can at least run them for you.

Last edited by BBCLiberator; 10-23-2012 at 10:40 PM.
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Old 10-23-2012 | 11:05 PM
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Originally Posted by BBCLiberator
Yeah, $1500 for both unless they need to make MAJOR changes and spend a ton of time.

I'll probably get crucified for saying it, but why not just dyno one and copy the changes to the other motor? It would be nice to run both however just to check for leaks/ minor isssues etc. I'd think your engine guy can at least run them for you.
He could do that- but then he goes through all that and has a still has a 50% chance of having a problem. Not worth it.

You can do that with jetting though and usually you are ok.
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Old 10-23-2012 | 11:22 PM
  #126  
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Originally Posted by Uncle Dave
Uhh wait..
I dont think so. 3000 sounds real steep.

More like 1000 for a full day in the dyno with 2 engines (if you dont have any problems)

Isn't your builder going to supply the labor?
I thought he was dynoing them? Dosnt he "have a guy"?

You want the day rate for the room maybe with with an operator thats just sticking - and your guys does the setup & tuning.(and you have to help him schlep and setup and pull the carbs and jet- no one gets it right on shot one. )

Shouldnt take more than a day and half for both engines even if you have to take the manifold off and reseat it on each one.

Dig a bit and find out who is doing what.

Sounds like Friday may not be the day.


UD
UD

You are right Friday won't be the day , sometime next week now !

He has a guy with a Dyno who obviously will charge me but I just wanted to get a quote fr somebody out of his circle and I got scared ehheheheh I will wait for his cost on the dyno , this other guy just got me off his back with the price he gave me.
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Old 10-23-2012 | 11:24 PM
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Not sure what you mean, if it can be run I don't see much risk. Though as you said, the second one is USUALLY pretty easy, and I agree it's not maybe the best way but for $1500 I'd deal with it!!!

Last edited by BBCLiberator; 10-23-2012 at 11:26 PM.
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Old 10-23-2012 | 11:27 PM
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Originally Posted by BBCLiberator
Yeah, $1500 for both unless they need to make MAJOR changes and spend a ton of time.

I'll probably get crucified for saying it, but why not just dyno one and copy the changes to the other motor? It would be nice to run both however just to check for leaks/ minor isssues etc. I'd think your engine guy can at least run them for you.
Yes UD gave me that idea before but as he said , I will go the extra mile and do it right.
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Old 10-23-2012 | 11:48 PM
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I'm eagerly watching this thread. Hoping for the best for ya Diego. I will be building motors when I finish all cosmetics as mine runs good now. Curious what ya get.
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Old 10-24-2012 | 08:38 PM
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Originally Posted by I.C.U.Lookin
I'm eagerly watching this thread. Hoping for the best for ya Diego. I will be building motors when I finish all cosmetics as mine runs good now. Curious what ya get.
I really like your boat , as soon as results are ready I will post them,

Thanks for your support.
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