Gas Jet Boaters
03-01-2010, 08:35 PM
#204
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RE: Gas Jet Boaters
ORIGINAL: mistycreekboats
Gee Scott u don't waste any time ......... looks very cool should run sweet ..... is Carmen's pipe a 1'' ? ....... Is there enough room for a deep V type header ?
Thanks
Randy
Gee Scott u don't waste any time ......... looks very cool should run sweet ..... is Carmen's pipe a 1'' ? ....... Is there enough room for a deep V type header ?
Thanks
Randy
]* My second choice of pipe is one of the obsolete Cooper Shorties that would be ideal on a DV header or WTC.
Just as an FYI ... this build has C/L of engines exhaust flange @ 10" from transom. ** So measure up a D/V header and pipe and see if you have the length required ?
03-02-2010, 01:34 AM
#205
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RE: Gas Jet Boaters
looking good scott. cant wait to see it run.
On another subject, I pulled the molds apart today. going to start wet sanding and polishing tomorrow
cheers
steve
On another subject, I pulled the molds apart today. going to start wet sanding and polishing tomorrow
cheers
steve
03-02-2010, 02:01 PM
#206
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RE: Gas Jet Boaters
ORIGINAL: Scott Schneider
Still going to be Fun Fun Fun ... 34'' at 27% CG = 9.19''
Sorry bud, my bad[:-]
ORIGINAL: Dana W
Scott the DaVette Sprint boat is 34'' long
Scott the DaVette Sprint boat is 34'' long
Sorry bud, my bad[:-]
or @ 30%* Even when I place engine @ 1/2" closer to pump, and move radio gear back an inch, C/G only shifts @ 1/4" [
] so that's not a cure.Maybe the heavier RCMK engine is the culprit here ? .... Being a FUN boat and weight pretty much a mute point, some lead shot at transom may be only way to bump the C/G rearward enough. Looks like @ 1/2 - 3/4 # will do it with some quick checking tossing in some wheel weights.
Will run it As-Is first and get a feel for handling attributes before adding some lead shot & epoxy matrix in corners of transom.
03-02-2010, 06:42 PM
#208
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RE: Gas Jet Boaters
ORIGINAL: infinityteg
Have you decided what your going to do with the roll cage?
cheer
steve
Have you decided what your going to do with the roll cage?
cheer
steve
Likely going to use some thin wall SS tubing and bend something up.
Or not worry about the scale look and not have one at all.
* Idea I just had reviewing pictures of other boats earlier in thread was building a pump guard assembly that would be on transom and give more weight out back that might be better than a bunch of shot within interior ?
But then again with such a thin non reinforced transom, having a pump guard attached may just damage it if hit hard enough. [:@]
03-02-2010, 08:45 PM
#209
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RE: Gas Jet Boaters
Hi all, i have a guard over my pump and it has not damaged anything yet , i guess it comes down to how wild a driver you are.
Just though i'd share my build, and yes it is the same one on ebay.
The roll cage is Stainless tubing, just thought it adds character.
Just though i'd share my build, and yes it is the same one on ebay.
The roll cage is Stainless tubing, just thought it adds character.
03-05-2010, 01:36 AM
#210
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RE: Gas Jet Boaters
Dana,
It's done !! .... obsessive building getting it finished in 8 days. Having all the stuff in another hull made it a LOT easier, but still some stuff changed that was learned on the first one.
Should make it out for a pond day in a couple weeks for some shake down runs.
Finished RTR weight minus fuel 12.5#'s
It's done !! .... obsessive building getting it finished in 8 days. Having all the stuff in another hull made it a LOT easier, but still some stuff changed that was learned on the first one.
Should make it out for a pond day in a couple weeks for some shake down runs.
Finished RTR weight minus fuel 12.5#'s
03-08-2010, 03:55 AM
#211
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RE: Gas Jet Boaters
Check this out... I bet a change of pants are in order for the marshal!
http://www.youtube.com/watch?v=hGzKc...layer_embedded
There's a few more on v8superboats.com.au
http://www.youtube.com/watch?v=hGzKc...layer_embedded
There's a few more on v8superboats.com.au
03-08-2010, 01:02 PM
#212
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RE: Gas Jet Boaters
Crickey !! ... run away run away !!!
ORIGINAL: dicko
Check this out... I bet a change of pants are in order for the marshal!
http://www.youtube.com/watch?v=hGzKc...layer_embedded
There's a few more on v8superboats.com.au
Check this out... I bet a change of pants are in order for the marshal!
http://www.youtube.com/watch?v=hGzKc...layer_embedded
There's a few more on v8superboats.com.au
03-08-2010, 03:19 PM
#213
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RE: Gas Jet Boaters
Interesting....
I have had a little trouble starting my Zenoah on the weekend , it seems like it was flooding once i was using the pullstarter , can anyone tell me what their setings are on the carby? I started at with the Low on 1+-1/4, High 1 5/8+-1/4 ? . It wasn't even trying to start, plenty of spark and the fuel is fresh ?????? all i have now is a sore arm . Please help as i am at a loss of what is going on.
Also getting rid of a few Swashdrive MK1 jets, not going to use them now as going to try my hand at Prop drives, PM me if your interested.
I have had a little trouble starting my Zenoah on the weekend , it seems like it was flooding once i was using the pullstarter , can anyone tell me what their setings are on the carby? I started at with the Low on 1+-1/4, High 1 5/8+-1/4 ? . It wasn't even trying to start, plenty of spark and the fuel is fresh ?????? all i have now is a sore arm . Please help as i am at a loss of what is going on.
Also getting rid of a few Swashdrive MK1 jets, not going to use them now as going to try my hand at Prop drives, PM me if your interested.
03-08-2010, 06:51 PM
#214
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RE: Gas Jet Boaters
ORIGINAL: mickieb49
Interesting....
I have had a little trouble starting my Zenoah on the weekend , it seems like it was flooding once i was using the pullstarter , can anyone tell me what their setings are on the carby? I started at with the Low on 1+-1/4, High 1 5/8+-1/4 ? . It wasn't even trying to start, plenty of spark and the fuel is fresh ?????? all i have now is a sore arm . Please help as i am at a loss of what is going on.
Also getting rid of a few Swashdrive MK1 jets, not going to use them now as going to try my hand at Prop drives, PM me if your interested.
Interesting....
I have had a little trouble starting my Zenoah on the weekend , it seems like it was flooding once i was using the pullstarter , can anyone tell me what their setings are on the carby? I started at with the Low on 1+-1/4, High 1 5/8+-1/4 ? . It wasn't even trying to start, plenty of spark and the fuel is fresh ?????? all i have now is a sore arm . Please help as i am at a loss of what is going on.
Also getting rid of a few Swashdrive MK1 jets, not going to use them now as going to try my hand at Prop drives, PM me if your interested.
Stock Zen 644 carb @ 1 1/4 H - 1 1/2 L
03-08-2010, 07:50 PM
#215
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RE: Gas Jet Boaters
"Scott Schneider"
Just as an FYI ... this build has C/L of engines exhaust flange @ 10'' from transom.
** So measure up a D/V header and pipe and see if you have the length required ?
Just as an FYI ... this build has C/L of engines exhaust flange @ 10'' from transom.
** So measure up a D/V header and pipe and see if you have the length required ?
As you can see on [link=http://www.quickdrawengines.com/Page_93.html]T H I S[/link] QD-page ... a DeepV-hotpipe will fit easely.
03-08-2010, 07:58 PM
#216
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RE: Gas Jet Boaters
ORIGINAL: HendricX
As you can see on [link=http://www.quickdrawengines.com/Page_93.html]T H I S[/link] QD-page ... a DeepV-hotpipe will fit easely.
''Scott Schneider''
Just as an FYI ... this build has C/L of engines exhaust flange @ 10'' from transom.
** So measure up a D/V header and pipe and see if you have the length required ?
Just as an FYI ... this build has C/L of engines exhaust flange @ 10'' from transom.
** So measure up a D/V header and pipe and see if you have the length required ?
As you can see on [link=http://www.quickdrawengines.com/Page_93.html]T H I S[/link] QD-page ... a DeepV-hotpipe will fit easely.
I've been looking at the outboard pipe setups, but I don't think they will work either due the pipe dropping down too low on the exit from the engine. I'm now looking at some of the Baja pipes, but I'm not sure if they are designed to run on the powerbands we will be using. But I think they may be better than the high revving race pipe setups for high rpm boats. We need torque out of these engines.
Cheers
Jason
03-08-2010, 08:16 PM
#217
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RE: Gas Jet Boaters
ORIGINAL: Scott Schneider
If carb is free flowing fuel ... take apart carb and clean inlet screen and wipe off tip on inlet needle.
Stock Zen 644 carb @ 1 1/4 H - 1 1/2 L
ORIGINAL: mickieb49
Interesting....
I have had a little trouble starting my Zenoah on the weekend , it seems like it was flooding once i was using the pullstarter , can anyone tell me what their setings are on the carby? I started at with the Low on 1+-1/4, High 1 5/8+-1/4 ? . It wasn't even trying to start, plenty of spark and the fuel is fresh ?????? all i have now is a sore arm . Please help as i am at a loss of what is going on.
Also getting rid of a few Swashdrive MK1 jets, not going to use them now as going to try my hand at Prop drives, PM me if your interested.
Interesting....
I have had a little trouble starting my Zenoah on the weekend , it seems like it was flooding once i was using the pullstarter , can anyone tell me what their setings are on the carby? I started at with the Low on 1+-1/4, High 1 5/8+-1/4 ? . It wasn't even trying to start, plenty of spark and the fuel is fresh ?????? all i have now is a sore arm . Please help as i am at a loss of what is going on.
Also getting rid of a few Swashdrive MK1 jets, not going to use them now as going to try my hand at Prop drives, PM me if your interested.
Stock Zen 644 carb @ 1 1/4 H - 1 1/2 L
Cheers
03-08-2010, 08:38 PM
#218
RE: Gas Jet Boaters
ORIGINAL: Scott Schneider
Dana,
It's done !! .... obsessive building getting it finished in 8 days. Having all the stuff in another hull made it a LOT easier, but still some stuff changed that was learned on the first one.
Should make it out for a pond day in a couple weeks for some shake down runs.
Finished RTR weight minus fuel 12.5#'s
Dana,
It's done !! .... obsessive building getting it finished in 8 days. Having all the stuff in another hull made it a LOT easier, but still some stuff changed that was learned on the first one.
Should make it out for a pond day in a couple weeks for some shake down runs.
Finished RTR weight minus fuel 12.5#'s
what kind of jet drive is that? . I'm looking for one to finish this project . i don't know what kind went in her ?? i don't have the rest of the drive . ant help with finding a new one .
03-08-2010, 09:57 PM
#219
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RE: Gas Jet Boaters
Scott's jet unit is a Swashdrive Gen II unit, no longer available unless you find one second hand. The unit you boat was set up for isn't a swashdrive unit, the swashdrive has a hexagonal backing plate. Try a Graupner unit which would probably be the easiest to get a hold of at present.
03-08-2010, 10:24 PM
#220
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RE: Gas Jet Boaters
the engine in my jet sprint is alot higher and from what i can see in scott it is the same. I have plenty of room under my engines and if it was a prop driven boat the engine would of been mounted alot lower. I have used drop mounts in the past and turned the rear mount upside down to get it higher (you can see this in scotts photos). i have since made my own rear mounts out of angle alloy.
I remember a post a while ago where some one welded a chain link to the hot pipe where they required and twisted the pipe to the required location.
That jet unit shown looks like the KMB unit that some people are going to be using in the davette sprint hulls. there is a link some where in this thread for them.
justed looked at the QD site and maybe the horizontal pipe or the outboard pipe would be the way to go
cheers
steve
I remember a post a while ago where some one welded a chain link to the hot pipe where they required and twisted the pipe to the required location.
That jet unit shown looks like the KMB unit that some people are going to be using in the davette sprint hulls. there is a link some where in this thread for them.
justed looked at the QD site and maybe the horizontal pipe or the outboard pipe would be the way to go
cheers
steve
03-08-2010, 10:26 PM
#221
RE: Gas Jet Boaters
ORIGINAL: dicko
Scott's jet unit is a Swashdrive Gen II unit, no longer available unless you find one second hand. The unit you boat was set up for isn't a swashdrive unit, the swashdrive has a hexagonal backing plate. Try a Graupner unit which would probably be the easiest to get a hold of at present.
Scott's jet unit is a Swashdrive Gen II unit, no longer available unless you find one second hand. The unit you boat was set up for isn't a swashdrive unit, the swashdrive has a hexagonal backing plate. Try a Graupner unit which would probably be the easiest to get a hold of at present.
03-08-2010, 10:29 PM
#222
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RE: Gas Jet Boaters
The graupner unit can handle the power of Zen. from what ive read in the past it seems the MHZ is a good unit (copy of the swasdrive) but very expensive
cheers
steve
cheers
steve
03-08-2010, 10:37 PM
#223
RE: Gas Jet Boaters
ORIGINAL: infinityteg
the engine in my jet sprint is alot higher and from what i can see in scott it is the same. I have plenty of room under my engines and if it was a prop driven boat the engine would of been mounted alot lower. I have used drop mounts in the past and turned the rear mount upside down to get it higher (you can see this in scotts photos). i have since made my own rear mounts out of angle alloy.
I remember a post a while ago where some one welded a chain link to the hot pipe where they required and twisted the pipe to the required location.
That jet unit shown looks like the KMB unit that some people are going to be using in the davette sprint hulls. there is a link some where in this thread for them.
justed looked at the QD site and maybe the horizontal pipe or the outboard pipe would be the way to go
cheers
steve
the engine in my jet sprint is alot higher and from what i can see in scott it is the same. I have plenty of room under my engines and if it was a prop driven boat the engine would of been mounted alot lower. I have used drop mounts in the past and turned the rear mount upside down to get it higher (you can see this in scotts photos). i have since made my own rear mounts out of angle alloy.
I remember a post a while ago where some one welded a chain link to the hot pipe where they required and twisted the pipe to the required location.
That jet unit shown looks like the KMB unit that some people are going to be using in the davette sprint hulls. there is a link some where in this thread for them.
justed looked at the QD site and maybe the horizontal pipe or the outboard pipe would be the way to go
cheers
steve
03-08-2010, 11:32 PM
#224
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RE: Gas Jet Boaters
ORIGINAL: HendricX
As you can see on [link=http://www.quickdrawengines.com/Page_93.html]T H I S[/link] QD-page ... a DeepV-hotpipe will fit easely.
''Scott Schneider''
Just as an FYI ... this build has C/L of engines exhaust flange @ 10'' from transom.
** So measure up a D/V header and pipe and see if you have the length required ?
Just as an FYI ... this build has C/L of engines exhaust flange @ 10'' from transom.
** So measure up a D/V header and pipe and see if you have the length required ?
As you can see on [link=http://www.quickdrawengines.com/Page_93.html]T H I S[/link] QD-page ... a DeepV-hotpipe will fit easely.
03-09-2010, 01:07 AM
#225
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RE: Gas Jet Boaters
heres the link to the pump i think it looks like. it says its good for up to .90 nitro engines. I ran a weedeater through one and handled it fine. will try one again one day once ive finished my molds (almost done)
http://www.jet-drive.de/index.php?op...d=11&Itemid=17
cheers
steve
http://www.jet-drive.de/index.php?op...d=11&Itemid=17
cheers
steve