GO-435

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signcypress
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GO-435

Post by signcypress »

Anybody out there running a GO-0435 Lycoming? If so how is it and what prop are you swing?

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JT540
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Re: GO-435

Post by JT540 »

stock go 435 are great motors they will turn a 74x54 paddle prop in the straight valve version or a 6 blade 78 in warp drive I have also seen them turn 78 and 80 power plus props in the angle valve version. I have 2 of these motors if anybody is looking for them.
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Re: GO-435

Post by SkinnerBack »

JT540 wrote:stock go 435 are great motors they will turn a 74x54 paddle prop in the straight valve version or a 6 blade 78 in warp drive I have also seen them turn 78 and 80 power plus props in the angle valve version. I have 2 of these motors if anybody is looking for them.
Price?

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Dan Coffey
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Re: GO-435

Post by Dan Coffey »

Those are some big props to swing on a 212hp motor. You can probably run a 5 blade 66 or 68" Warp Drive on it.
I have an O 435 with 480 jugs and angle valve 540 pistons in it and it swings a 68" five blade.
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midnight rider
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Re: GO-435

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midnight rider
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Re: GO-435

Post by midnight rider »

No way a five blade 66 will work on a go-435. Most are 260 to the gear box.

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ptr34
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Re: GO-435

Post by ptr34 »

3 blade NGQ will work great 76"
if u don't run dry .then should have gotten a bassboat
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Bruce
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Re: GO-435

Post by Bruce »

Dan Coffey wrote:Those are some big props to swing on a 212hp motor. You can probably run a 5 blade 66 or 68" Warp Drive on it.
I have an O 435 with 480 jugs and angle valve 540 pistons in it and it swings a 68" five blade.
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farmboy
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Re: GO-435

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Dan Coffey wrote:Those are some big props to swing on a 212hp motor. You can probably run a 5 blade 66 or 68" Warp Drive on it.
I have an O 435 with 480 jugs and angle valve 540 pistons in it and it swings a 68" five blade.
That gear box makes a huge difference.
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JT540
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Re: GO-435

Post by JT540 »

I was thinking the same thing ptr! it would be a sweet prop for that motor and keep it low enough with the shorter length to keep it from getting top heavy. if I get one ready I may get one to try.
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JT540
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Re: GO-435

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Dan Coffey wrote:Those are some big props to swing on a 212hp motor. You can probably run a 5 blade 66 or 68" Warp Drive on it.
I have an O 435 with 480 jugs and angle valve 540 pistons in it and it swings a 68" five blade.

if that's all yours will turn its sounds like it time for an overhaul. I just finished one for a customer you can see pics in my gallery that was turning a 68 6 blade set on 10 degree with a protractor 3300. hes buying a new prop cause the motor turned out to be stronger then he thought I had a wore out one several years ago that turned a 72 6 blade on 8 and it ran great it was wore out but still a very good motor.
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sidney albritton
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Re: GO-435

Post by sidney albritton »

I have been running one for 4 years with 8 blade 84in turbo set up on 9&11 at 3400rpm no problem good little motors

signcypress
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Re: GO-435

Post by signcypress »

Thanks for the information. I would like to stay at 70" max prop really don't want to widen my boat. Am I asking to much from a 72" X 13 fiberglass boat with this motor? Maybe I need to sell boat or motor and go in a different direction. Don't want to build something that I am not maximizing my HP. Any suggestions would be helpful.
Still would like to make this project work, love the way my boat handled with the 0-435 190hp.

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JT540
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Re: GO-435

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convert your 435 to a 480 then get 260plus hp out of it
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signcypress
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Re: GO-435

Post by signcypress »

I am suppose to be 260hp already with a GO-435.

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JT540
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Re: GO-435

Post by JT540 »

yes with the GO but I thought you said you had already a 190hp o435
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signcypress
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Re: GO-435

Post by signcypress »

Yes I have a 0-435 but it has low compression.

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Re: GO-435

Post by signcypress »

Ok guys, it's time to make a decision. I have a good running GO-435 Lycoming (260hp) and need to find the right prop at maximum length of 70". Or scrap boat which is 6' x 13' glass hull or sell all of it and buy go-devil (LOL). I would like to finish this project with both but can't come up with a prop that will work so far or if it is worth the effort.

any surjections will be appreciated.

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Slidin Gator
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Re: GO-435

Post by Slidin Gator »

Do you know the gear ratio and rpm at peak power on your particular motor? It is going to take wide blades to get what you want here. I am thinking NGQ with the short hub and the winglets cut off to get to 70". The prop will push and load the motor like a 72" Q. 2 blades if prop speed will be 2,600 or higher at max power, 3 blades if it's geared lower.

You definitely got a narrow hull, so you are going to have a lot more torque roll to deal with and a good bit of weight. The boat would be better with an O-360 than it ever was with the older O-435. That GO-435 is better matched to a wide hull and 76" prop.
I still think I-10 is the Mason Dixon line.
2013 Mike Stossel Boats, 13' x 7' deck over, IO-540, 74" NGQ less winglets.

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kwanjangnihm
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Re: GO-435

Post by kwanjangnihm »

260 hp at 3400 RPM - gearbox ratio 1.55 (77/120)

older post on same topic: https://southernairboat.com/phpBB3/view ... hp?t=41035
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Slidin Gator
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Re: GO-435

Post by Slidin Gator »

1.56 puts prop RPM around 2,200 so at least 3 wide blades with lot's of pitch. Call Sensenich to see what blade and hub combinations they can offer in NGQ or JW.
I still think I-10 is the Mason Dixon line.
2013 Mike Stossel Boats, 13' x 7' deck over, IO-540, 74" NGQ less winglets.

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