Boost Bog
- Thread starter kylant
- Start date
The doo turbo intake is amazing. You’d think the flat intakes on top of the hood would easily get covered and bog, they don’t, even in the deepest snow. The air box valve in the doo and Polaris look very similar, in design and size. Maybe one opens more than the other or has different stiffness springs holding them shut before opening. The snorkel intake may be the answer.
any difference in exhaust exit?
The doo has the N/A portion of the rpm range going through the end of the pipe with a diverter gate.
(With some keeping the turbo spoinning)
Polaris is center pipe dump n/a
No diference. Rod my 22' boost in deep over the hood snow yesterday (well tried to anyway). Deepest snow in a while. Sled was pretty much unridable the intake bog is so bad. Got tied of cleaning the snow off the intakes and took it back to the trailer and rode the 100% stock G5 turbo the rest of the day and all day today. The doo never bogs ever, even with the hood completely piled with snow (pic below). Really has me considering canceling my 24' boost snow check and getting another G5 turbo.
I had the same experience as you. I always jump back and forth between Polaris and Ski Doo. I was going to snow check a Boost this year, but the powder bog is a deal breaker for me.
Surprised aftermarket has come up with a fix yet. on my 22' boost I did a frogskin in the back of airbox under the hood. It bogs less than my 23 with factory airbox.
How did you attach the frogskinz?
Glue?
I stuck a small one to the fuzzy as a test but it seemed loose.
C
Agreed, one on the front on the air box and one on the back.. works great, now it’s just exhaust bog on hard RH turns in deep snow when the skis aren’t up… haven’t tried modifying the exhaust deflector yet but that’s next.
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T
Finally got on a boost yesterday. Deep conditions. Felt like a 600 on the low end prior to turbo kicking in. Nothing there. Boggy. Boost kicked in hard which was cool but the lack of a low end I did not care for. Was happier on my 850.
The Lynx turbo I rode this year was very different. Felt like an 850 on the bottom end with a turbo top end. Wish Polaris was the same but from personal experience and this thread I can see that it’s not
The Lynx turbo I rode this year was very different. Felt like an 850 on the bottom end with a turbo top end. Wish Polaris was the same but from personal experience and this thread I can see that it’s not
B
This is it exactly. Disappointing for sure.
B
Got all the way to reeds - was hoping to find a throttle body boot cracked or something - Found nothing wrong
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I just stuck it on. A year later still holding great.
Major issues yesterday. I have stock 22 airbox with venting added to the front right above where the felt part ties in. Ended up disconnecting felt part to let more air in. Helped some but sucking primarily hot air isn't ideal for performance.
Collapsing intake tube. Exhaust bogs. Generally lazy and poor running. The NA sleds outran me most of the day as they just get low on rpm instead of complete loss of power. The snow was crazy low density so it flowed nicely and didn't freeze to things.
Definitely very frustrating when I don't wanna ride my boost because its too deep?
Collapsing intake tube. Exhaust bogs. Generally lazy and poor running. The NA sleds outran me most of the day as they just get low on rpm instead of complete loss of power. The snow was crazy low density so it flowed nicely and didn't freeze to things.
Definitely very frustrating when I don't wanna ride my boost because its too deep?
fire n ice big air intake work? Anyone tried them?
and that looks like the best snow ever - wheelhouse motor sports. Holy crap deep and fluffy!
and that looks like the best snow ever - wheelhouse motor sports. Holy crap deep and fluffy!
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Fire & Ice has two matryx vents. One is like the ibexx vent, covers the original stock vent, which hadn’t seemed to be much help. The other goes under the hood. Jared Sessions left a review of the under the hood vent. The slp vent I put in mine pretty much did nothing to reduce the bog. Put one in like the fire & Ice (pic below), but haven’t been out yet. Jared does make an interesting point I’ve always thought of but never tested, drawing in warm under hood air a problem in a turbo? While probably not 100% ideal, the intake air is heated as it goes through the turbo anyway as it’s compressed and from heat from the exhaust. I’ve wanted to monitor my intake temps like Jared did with outside air vs under hood air to verify if there is much difference.
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23 boost with silicone intake tube, tunnel dump exhaust, VOHK tune, and a few frog skinz. Not bog at all in snow like this all day and I do not even bother wiping away the intake vents anymore just seems to work. Now my stock 22 on the other hand was unrideable stock in snow like this but seems I have it figured out now on the 23. I would be surprised if this set up didn't work for others.
B
Is it a race gas tune? I just want to get mine to actually run first
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These look like a good option
Polaris Boost Bypass Intake Anti Bog
Our Silicone Intake Elbow with Bypass Valve for the Polaris Boost snowmobiles is what your looking for to increase the airflow to the turbocharger. Are you tired on the random bog when pinning the throttle? The valve allows the turbo to breathe freely when riding in those deep powder days. The...
www.silberturbos.com
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