RE: Building a 65" Expresscraft GTX Deep V  
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RE: Building a 65" Expresscraft GTX Deep V - 1/15/2006 9:32:35 PM   
lzvagias


 

Posts: 961
Joined: 10/3/2004
From: valpariso , FL, USA
Status: offline 		damn fine work! i'm envious of your tooling you have access too. there's no substitute for have the right tool for the right job, that might take me a while to build with a jig saw and a dremel! have you dropped in to the stringers yet? just wondering if the heads of those bolts will clear the stringers, if so you have plenty of material to allow you to counter sink them. me thinks it might look pretty trick if you put some oval shaped holes with and beveled the edges of them a little. looks great though.

(in reply to Delinport)
       Post #: 51

RE: Building a 65" Expresscraft GTX Deep V - 1/16/2006 4:23:46 AM   
Delinport


 

Posts: 463
Joined: 1/2/2006
From: Tigard, OR, USA
Status: offline 		Thanks Izvagias....I thought about counter sinking the bolts...I still may. I still have to install vibration mounts and rails. The pictures of my engine in the hull show 5 inch rails...They won't work. I have to send this hull back to expresscraft anyway. I will have them send me one without rails so I can put them in myself.

Del

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(in reply to lzvagias)
       Post #: 52

RE: Building a 65" Expresscraft GTX Deep V - 1/16/2006 6:22:46 AM   
lzvagias


 

Posts: 961
Joined: 10/3/2004
From: valpariso , FL, USA
Status: offline 		that sux about your hull, but once its done and your on the water with it you'll forget all about it. still, i hope tom returns to expresscraft and starts kicking a@# and taking names. regarding your bolts, whether you counter sink or not some ss hex head bolts inplace of your exhisting ones would really look nice! not trying to be critical just trying to throw some ideas out there for you.

(in reply to Delinport)
       Post #: 53

RE: Building a 65" Expresscraft GTX Deep V - 1/16/2006 6:39:18 AM   
Delinport


 

Posts: 463
Joined: 1/2/2006
From: Tigard, OR, USA
Status: offline 		Thanks, Izvagias......I am open to any ideas to make my boat better. This will be my third gas boat, but the first one I built myself.

Del

(in reply to lzvagias)
       Post #: 54

RE: Building a 65" Expresscraft GTX Deep V - 1/16/2006 6:56:19 AM   
FROGMAN524


 

Posts: 1196
Joined: 6/4/2004
From: Flagstaff, AZ, USA
Status: offline 		Delinport, those look like very short stringers, what are they, about 17"? Mine were just past that step in the hull that your motor is currently sitting over. Have them send you long stringers, I forgot to ask for those when I ordered my hull from Roger. Ken.

ps, looks like good work on those motor mounts. Keep up the good work, KEn.

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(in reply to Delinport)
       Post #: 55

RE: Building a 65" Expresscraft GTX Deep V - 1/17/2006 1:29:08 AM   
Delinport


 

Posts: 463
Joined: 1/2/2006
From: Tigard, OR, USA
Status: offline 		Ken...they seem short to me too. The next hull I'm going to have them send it without stringers installed. I might use a little thicker wood.....Just for more support. I don't really know if it needs it but I would rather add just a bit more weight and be safe. I don't want to rip the stringers out when I got to pull start my motor. I was also thinking of drilling some holes in the mount I made to lighten it. I don't really know if it's worth the time...and it might look like crap. I will have to think about it.

Del

(in reply to FROGMAN524)
       Post #: 56

RE: Building a 65" Expresscraft GTX Deep V - 1/17/2006 1:51:41 AM   
lzvagias


 

Posts: 961
Joined: 10/3/2004
From: valpariso , FL, USA
Status: offline 		Matt could shed more light on thicker stringers than me but i don't think thats really going to be anything to worry bout. if you where to do anything regarding strength i would maybe just reinforce the glass or if you glass them in yourself i'd use wider strips of cloth and use epoxy. but again, i don't know that you'll even need to worry bout it. i'd try not to over build it if its not needed as this will only add weight and ultimately effect performance. just my two pennies and some pocket fuzz.

(in reply to Delinport)
       Post #: 57

RE: Building a 65" Expresscraft GTX Deep V - 1/17/2006 2:41:22 AM   
Delinport


 

Posts: 463
Joined: 1/2/2006
From: Tigard, OR, USA
Status: offline 		Thanks for the two cents and the pocket fuzz Izvagias. I will stick with the standard thickness rails. I ordered the drive from Loo at MHZ today. I also broke down and ordered a $235 water cooled tuned pipe. I was happy with the one I made. But after doing more research...It seems the exhaust can really play a key role in a 2 stroke engines performance. I am not an engineer and I really don't have the skills to calculate proper angles and dimensions for an expantion chamber. Sometimes it's best to let people do what they do best and not try to patch things together if you really don't know what your doing. Just because you can cut and weld some metal...it doesn't mean you can make a pipe that will benifit the performance of your engine.

Del

(in reply to lzvagias)
       Post #: 58

RE: Building a 65" Expresscraft GTX Deep V - 1/17/2006 4:01:50 AM   
Justaddwata



Posts: 3681
Joined: 2/24/2005
From: RI-USA, RI, USA
Status: offline 		Hey Del,

You will be happy with the stainless pipe from MHZ. See if loo can supply you with the correct pipe length for the Polini. Will save you some trial and error.

It would not be a bad idea to spread some of the load of the motor over a bigger area in the hull. Either longer rails or a layer or two of glass below the rails you install would help. Remember that this motor is going to give that hull a pounding and it is always better to build it a little stronger from day 1 than try to rebuild it after damage is done.

Looks like your heading the right direction there !!!

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(in reply to Delinport)
       Post #: 59

RE: Building a 65" Expresscraft GTX Deep V - 1/17/2006 6:03:36 AM   
Delinport


 

Posts: 463
Joined: 1/2/2006
From: Tigard, OR, USA
Status: offline 		Thanks justaddwata...I will ask loo if he can give me a good header length to go off of.

I got an email from Laura at expresscraft today. She said she is very sorry and they will resolve the issue by sending me another hull. She also said they would send the hardware and parts that came up missing. She seemed concerned about me as a customer...It was nice to see for a change.

Del

(in reply to Justaddwata)
       Post #: 60

RE: Building a 65" Expresscraft GTX Deep V - 1/17/2006 7:13:49 AM   
Justaddwata



Posts: 3681
Joined: 2/24/2005
From: RI-USA, RI, USA
Status: offline 		I have had nothing but good experiences with Expresscraft. Glad to hear they are coming through for you.

_____________________________

One of the best gas boat picture sites - http://imageevent.com/justaddwata

"He has no enemies, but is intensely disliked by his friends"

(in reply to Delinport)
       Post #: 61

RE: Building a 65" Expresscraft GTX Deep V - 1/20/2006 2:04:14 AM   
Delinport


 

Posts: 463
Joined: 1/2/2006
From: Tigard, OR, USA
Status: offline 		I fabricated a carb intake manifold over the past couple days. I used a metal band saw, drill press, belt sander, and dremal tool. Here are some photos.

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(in reply to Justaddwata)
       Post #: 62

RE: Building a 65" Expresscraft GTX Deep V - 1/24/2006 5:54:42 AM   
Delinport


 

Posts: 463
Joined: 1/2/2006
From: Tigard, OR, USA
Status: offline 		I got my S6 drive and tuned pipe from MHZ today. It looks great....but I still have no hull to start doing much. I hope expresscraft sends one out soon.

Aslo...I'm trying to figure out what I should do for carb throttle control. I picked up a cable setup I was thinking about using but it seems like there is a lot of friction. I hooked the throttle cable up to the servo on my Monster GT truck and it didn't seem to move real fast. I could build a linkage setup that might be better. Does anyone have any great ideas? I would be hooking up to a walbro carb if that helps....thanks..

Del

(in reply to Delinport)
       Post #: 63

RE: Building a 65" Expresscraft GTX Deep V - 1/27/2006 3:42:26 AM   
Delinport


 

Posts: 463
Joined: 1/2/2006
From: Tigard, OR, USA
Status: offline 		Over the past few days I got a few important things done. I fabricated a bracket and linkage for my throttle. Thanks to some other posts I was able to come up with something that I feel will work very well.

I also fabricated an adaptor plate for the exhaust and welded it to a braided steel flex line I plan on using. Due to the length of the pipe I got I think it will have to bend forward and come back kind of like I'm showing in the photos. I will have to wait to see how everything lines up with the exhaust before I weld the pipe on.

I hope I get my hull back soon....

The throttle lever I made feels smooth. Does anyone see any reason it shouldn't work?

Del

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