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Old 11-28-2019, 07:04 AM   #1
webn237
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Default Vtwin upgrade breakdown

Does anyone have a list for what upgrades add x amount of hp?

I got a 18hp Vanguard and I am trying to estimate the hp of it when it is fully modified. I was told there was a list a while back for it and can't find it.

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Old 11-28-2019, 09:57 AM   #2
BIKERMIKEYBLACK
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Default Re: Vtwin upgrade breakdown

I’ve not seen any list like that but normally someone going all out would add
Tachometer
Remove governor
Rev kit springs pushrods either 2 steel or chromoly
Timing advance key
20hp 2 barrel intake and carb
Free flowing exhaust
23hp cam or Cheetah cam
And that should be enough
And remove exhaust restrictions if it has them

Last edited by BIKERMIKEYBLACK; 11-28-2019 at 09:59 AM.. Reason: Addition
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Old 11-28-2019, 10:53 AM   #3
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Default Re: Vtwin upgrade breakdown

Is there a performance difference between a dual barrel carb and 2 individual carbs?

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Old 11-28-2019, 12:00 PM   #4
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Default Re: Vtwin upgrade breakdown

Probably I’m not sure a lot of mud motor guys run twin carbs check out backwater performance and carrier performance they have a lot of that stuff but it is expensive
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Old 11-29-2019, 05:18 PM   #5
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Default Re: Vtwin upgrade breakdown

What are you trying to achieve?

What's your budget?

You can do all kinds of mods that are cheap, but the big power comes from big dollars. If you are trying to be the biggest, baddest around, get the credit card out. If you are looking for more "usable" power....a rev kit, cam, and two barrel carb are all you need. You can do porting/polishing yourself to save bucks.
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Old 11-29-2019, 05:57 PM   #6
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Default Re: Vtwin upgrade breakdown

I am putting it into this build so badass sounding and performance(speed torque) is what I want. I want to do basic cheap upgrades first. Then once I get more cash I am going to do cam and everything. It is a ways from drivable but I am just looking at an estimated HP for a fully built 18hp for an idea I might be trying.

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Old 11-29-2019, 08:52 PM   #7
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Default Re: Vtwin upgrade breakdown

Wow what kind of body is that ?
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Old 11-29-2019, 09:21 PM   #8
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Default Re: Vtwin upgrade breakdown

Its a glorified street legal golf cart from the 70s. Only 52 were made. I got 14 bodies (only 6 good ones) they were called suburban safaris

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Old 11-29-2019, 11:10 PM   #9
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Default Re: Vtwin upgrade breakdown

That’s too cool looks like an old English sports car

Last edited by BIKERMIKEYBLACK; 11-29-2019 at 11:11 PM.. Reason: Misspelled
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Old 11-29-2019, 11:13 PM   #10
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Default Re: Vtwin upgrade breakdown

Quote:
Originally Posted by BIKERMIKEYBLACK View Post
That’s too cool looks like an old English sports car
Its pretty cool. There pretty much all the drivetrain and suspension is junk so I am fitting a G16 as part of the frame. G16 chassis, G2 rear end, and thinking CC DS steering

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