Freakrider
X247
- Location
- Tampa Bay area
Running XS 46's.
Engine Air Supply
- Thread starter DAG
- Start date
KTM434
Jamie FN Hickey
- Location
- Palm Coast FL
Tried tapatalk, didn't see any video option. Switched to web view and tried. It wouldn't take it off my phone and would only embed from certain sites so I put the video on Vimeo and pasted the link to embed it
- Location
- amarillo ,tx
Now I think about it, I believe I experienced the same thing with my rn. When it had a limited 701 setup. I glassed over 2 of the 3 air intake holes in the front of the hood. I did however open the 2 rear vents a lil. But when I would go for a long ride and come back to shore. I would go to take the hood off. I would have to use all my weight to pull the hood off. I had a one way valve but it seemed to work just fine. I always thought it was because I got the ratchet strap to tight. But maybe it helped the whole situation. Idk, I was running stock handle pole with um I handlepole bracket
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Sent from my SCH-I535 using Tapatalk
speedysprocket
Alex
- Location
- Chesapeake, VA
Your engine compartment isn't going to hold a vacuum after you shut it off...
- Location
- amarillo ,tx
madness maker
John
- Location
- freaked on long island
i'll comment on this, as its something i am addressing soon on my girls ski. just before daytona this past year i did the normal yearly refresh on our freaks, but this time on kims ski she stepped up to the same motor i have been running in my freak, 10mm dasa 1000, both boats are setup almost identical,same motor/compression/pipe/chamber/ign etc.
Only difference is kims running mikuni superbn 46's and im running novi 48's.
my hood has 2-2.5" breather tubes, and hers has one 2.5" breather. (and both running same x metal pole with the small flex tubes)
As time was running out, and i finished both skis the day before we planned to leave to daytona, i didnt have time to add another breather to her ski. i fig it would be holding it back some.
After some tuning there i got it dialed in using jetting others have used with this combo, but..
After i actually checked where the hi speed needles ended up they were only 1/2 -3/4 turn out. and her ski had much less hit than mine does and is rich up top..(another note. i gave her my old top end, that hit way harder prev.)
Would love to install a vac gauge on hulls to see what the difference is, also has me thinkin of adding a third breather on my ski, but for mainly surf riding we do its almost too much as it is. and has proven to be rock solid reliable. so i may just leave well enough alone.
i will post vacuum readings soon as we get skis in the water.
Only difference is kims running mikuni superbn 46's and im running novi 48's.
my hood has 2-2.5" breather tubes, and hers has one 2.5" breather. (and both running same x metal pole with the small flex tubes)
As time was running out, and i finished both skis the day before we planned to leave to daytona, i didnt have time to add another breather to her ski. i fig it would be holding it back some.
After some tuning there i got it dialed in using jetting others have used with this combo, but..
After i actually checked where the hi speed needles ended up they were only 1/2 -3/4 turn out. and her ski had much less hit than mine does and is rich up top..(another note. i gave her my old top end, that hit way harder prev.)
Would love to install a vac gauge on hulls to see what the difference is, also has me thinkin of adding a third breather on my ski, but for mainly surf riding we do its almost too much as it is. and has proven to be rock solid reliable. so i may just leave well enough alone.
i will post vacuum readings soon as we get skis in the water.
Superjetjim
X-
I'm gonna be rocking a pair of these on the firewall..
Marine grade stainless, will be 'X' routing the air pipes to either side of the PTO cover. Keith T on here came up with the idea so props to him!
Marine grade stainless, will be 'X' routing the air pipes to either side of the PTO cover. Keith T on here came up with the idea so props to him!
- Location
- amarillo ,tx
Wow that's awesome
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Sent from my SCH-I535 using Tapatalk
schicks
Karma Enforcer
- Location
- West Michigan
where did you get those? thats a great idea!!!!
Superjetjim
X-
Taking them to the powder coaters today to get them black to match.
Use it's the other side of the bulkhead and pipe down
Use it's the other side of the bulkhead and pipe down
I eneded up using a stock air box in my tray area of my xfs with a 2" hose that comes through into the box and stops an inch short of the lid, this works like a baffle system. I rode all day with nose in flips and a few upside down landings and the motor and hull stayed dry, it ran like a dream
speedysprocket
Alex
- Location
- Chesapeake, VA
Well finally got to my ski, got it running, and put a vacuum gage in it while on the stand. Needle never moved, regardless of the good sucking down. And the gage does work... We may be over thinking this, but I will try it on the water next time I push it to the pond...
DAG
Yes, my balls tickled from that landing
- Location
- Charlotte, NC
Speedy what engine/carbs hull and pole?
- Location
- Charlotte NC
i just added 2 tubes to my hood to breath more.......testing tomorrow..
waxhead
wannabe backflipper
- Location
- gold coast
My 8mm stroker use to suck the hood down on a stock 2008 with pipe breather as well. That tells you that there is not enough flow in a stock hood for a big engine. ON all my race boats I used to leave out the pole seal for the steering cable etc and take out the fuel and choke etc and leave them open. No hull mods but its no cheating is it
- Location
- Cruising Around
C'mon Wax, just cuz there is a vacuum doesn't mean there is a "vacuum". There ya go with that book smart talk again.
I see alot of ppl think the same about you
- Location
- Cruising Around
You are probably correct. Some people would argue that their setups are better after talking to me. It' all about perspective. Edit: just trying to help from my experience and from wasting money. I do have opinions that I voice, as others do, that are probably not needed.
waxhead
wannabe backflipper
- Location
- gold coast
lol I really have no idea. Maybe when I was reving the engine it was making a gravity shift and this was effecting the hood