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Post by geh3333 on Sept 5, 2014 18:15:59 GMT -5
How's it going , I just wanted to post that I just got done putting together a uni setup for a 61mm setup . The member asked if I'd get the parts and put it together for him . Got the setup together and out to him within a week . If any one else needs a uni setup and would like for me to help them out just let me know . I don't charge to do the work and I'll sent the receipts back with the product " just to let you know I'm not charging anything " . His setup with shipping came to around $42 . Shipped priority mail . Here is a pic  This is he same setup I use , the uni has a cylinder cage type insert inside for stability . But I can do different styles if wanted . This setup will set just below the side panel on most 150 scoots but not out beyond the panel so that the rain dosent get to it easy. Message me if interested . |
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Post by rcq92130 on Sept 5, 2014 18:47:30 GMT -5
That is really super!
I fretted and fretted about how to make an intake tube not realizing that (obviously) there is somehting commercial available. Ended up going to my muffler shop --- guy bent a piece of tailpipe the right diameter into the same curve I see you have.
Would have been a lot of saved effort if I had know what you have!
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Post by geh3333 on Sept 5, 2014 21:34:11 GMT -5
That is really super! I fretted and fretted about how to make an intake tube not realizing that (obviously) there is somehting commercial available. Ended up going to my muffler shop --- guy bent a piece of tailpipe the right diameter into the same curve I see you have. Would have been a lot of saved effort if I had know what you have! I try my best to help others here and I'm just lookin for other ways to offer my help . |
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Post by xyshannen on Sept 6, 2014 8:16:42 GMT -5
FYI for the GY6 crowd, I just put a uni on my Lance. When I unboxed it I was very surprised by how big it was. There was no way it was going to fit under my cross brace. So I just cut the tube going to the original air box just before it starts to go square. Then with a little effort the Uni slipped over the cut end. Stuck it on the carb and it fit perfectly.
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Post by rcq92130 on Sept 6, 2014 11:47:47 GMT -5
Yes, that is one typical way of connecting the Uni. The disadvantage of this is you lose a good deal of the high air flow you got the uni for in the first place --- the black intake duct that comes from China is both small (diameter) and not a good air path.
Better to get from GEH the curved duct and take advantage of the higher air flow inherent in the Uni.
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Post by tvnacman on Sept 6, 2014 12:06:17 GMT -5
I have been using this on the 16" wheel scooter it clears the cross support bar .  On the ones that the cross bar is in the way I use this one not a great picture .  Cheaper version linkJohn |
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Post by xyshannen on Sept 6, 2014 12:10:38 GMT -5
I wasn't trying to say my way was better. Just easy. As for better... I forget the actual numbers (old HVAC student) but forcing air to take a  degree turn certainly reduces flow. The air box connection isn't smaller. It's actually larger than the carb air intake port. The inside is rubber that's actually smoother than what's found in a typical radiator hose. So what's better? I would say the differences aren't enough to worry about unless you are trying to eek out that extra 1/10th of a second in the quarter mile. What Geh is offering is extremely generous of him and I in no way intend to take away from that. just thought I would add an optional tip. |
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Post by ital on Sept 8, 2014 16:59:22 GMT -5
Here is my set-up. I have so many vacum lines connected from the carburetor all the way to the side and I did not want to loose that. Thus I went this route. I ended up putting the filter cover back on as well as you can unscrew a vent and there is a big opening allowing plenty of air in. Bought a PVC pipe at home depot, worked well.  |
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Post by geh3333 on Sept 8, 2014 21:46:29 GMT -5
The bigger uni setup really lets the carb pull much more air which is perfect for a bigger carb . This allows for the use of a bigger main jet without running to rich , and that creates more horse power . Just remember you must have a bigger head and a high performance exhaust .
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degree turn certainly reduces flow. The air box connection isn't smaller. It's actually larger than the carb air intake port. The inside is rubber that's actually smoother than what's found in a typical radiator hose. So what's better? I would say the differences aren't enough to worry about unless you are trying to eek out that extra 1/10th of a second in the quarter mile.
