DTSFab.com (Desert, Trail and Sand)
General Discussion => The video room => Topic started by: dsrace on January 29, 2019, 05:01:30 PM
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https://youtu.be/W8qBzTc4l-U
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https://youtu.be/mqJ7kJPlqHE
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Yummmmm,tasty.
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you can hear the rev limiter in the last one!
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not a yxz but still interesting to see what kind of increase $4795.00 gets a rzr.
https://youtu.be/B3vNK8zS23g
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At this time it all boils down to this:I have 2 yxz's,1 mid size busa buggy and one badass desert car. The yxz's are like my daily drivers that are not likely to break down and are solid back ups. The busa buggy has been really reliable and is pretty solid performer. The desert buggy is the least reliable due to the pretty radical N/A engine of choice but most fun. I got it covered for now.
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If anything get a HP upgrade it will be busa buggy first.
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can completely understand that! still interesting to see what there doing with them.
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Honestly,at this time,there are none of them that are robust enough to handle that kind of performance without constant PITA parts replacement and maintenance. Dinky cv's and axles are just the beginning. Driveshafts are prone to failure.Every single part on them are minimal size and they STILL weigh almost as much as my busa buggy that can take the abuse I have given it for what- 10 years now? I guarantee you that the sxs's would not have survived the same. BUT, for the masses ,they do make sense.
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well that is the other side of the coin ;D ;D adding another 100hp let alone 250 more hp well that requires stronger control arm front and rear or links.....strong axles and stronger trans gears ( depending). the factory light bar then really needs to be changed out to a roll cage and that snow ball keeps on rolling until you have $10k to $20 thrown at it with the turbo kit. everyone in the buggy end of it are all guilty of that too rofl many people do throw all that extra on there sxs's and resale is still book value for most. the sign and drive thing wins out for the mass's and understandable why.
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Insure it/drive the piss out of it/crash it/file insurance claim/repeat. What more can a person ask for?
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exactly ;D
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Well chit! Were do I sign up!!?
I do love what the YammyHammy motor is capable of though damn!
Mean little sumbitch.
I just don't feel safe going ballsout in any of the side by sides, driving or passenger. Never have, that's just me. BUT I have never been in one that is set up wider than factory. I need to midnight auto one of Fabr's this Spring ;D
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The thing that just amazes me is the fact that many guys now are running MUCH bigger/heavier tire/wheel combinations on the dinky spindles. Then there is the minimal cages/frames.............Another thing is the piss ant factory belts that MANY will not upgrade when they up the performance. Honestly,this isn't going to end well for at least a few people.
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the big turbo dyno video on the rzr 1000 is an efr 6258. now that is a factory turbo rzr and i think there only 949cc's but a 3 cyl however they do turbo 8k rpm. just an interesting comparison to a busa.
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i dont know the comp ratio of that motor but if you read the notes on the video and that from the company the turbo kit comes from......17 psi on 91 octane! an efr 6258 should work quite well on a busa or i should say it will work quite well! :D enemy
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Maybe I'm missing something and I haven't looked at the specs on that turbo but if it works well on an always in boost 949cc engine why would it work well on a 1300cc engine that will not always be in boost. ???
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Controllable by the throttle pedal is why ;)
Just kidding (kinda) but if I were looking to have a turbo spool yesterday, this is the series to do it, supports between 250 to 450hp (need to log the shaft speed if you take it that far though) and it is 30 years newer than my current turbo design. This is with a .64 AR turbine housing. Many busa guys like to go much larger series and a bigger AR for the big end but we don't use the busa like that, at least I don't. And not looking for over 400hp, not needed.. Been talking to a Busa powered road race car guy with this turbo, he loves it, says it can get a bit twitchy coming into boost but he learned to drive through it and use better waste gate control. I found a new/used 6258 for a damn fine price, gunna give it a shot! Currently running a 6758 on a 2.3 in the Ranger, wow is it a great turbo compared to the others I have played with on the truck.
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Maybe I'm missing something and I haven't looked at the specs on that turbo but if it works well on an always in boost 949cc engine why would it work well on a 1300cc engine that will not always be in boost. ???
your were but enemy explained it ;) enemy stopped by with my new used 6258 efr he has yet to return rofl rofl
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When would you expect the busa to spool that turbo and with what compression/boost?
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the rzr specs....didn't realize they were 2 cyl's and rev limiter factory is set at 8800 but speed governed ( not a surprise and good thing) so i guess at 72 mph stock or 8800 which ever comes first. so i am wondering what would drive a turbo better, the drive from a 925 cc 2 cyl or 1299 cc 4 cyl? based on same rpms and no i don't know what the flow rate of the the 2 cyl heads are. just a thought is all.
busa
1,299 cc (79.3 cu in), 4-stroke inline-four, liquid-cooled, DOHC, 16-valve, Keihin/Denso fuel Injection, wet sump
Bore / stroke 81.0 mm × 63.0 mm (3.19 in × 2.48 in)
Compression ratio 11:1
2017 POLARIS RZR XP TURBO EPS
ENGINE/TRANSMISSION
Engine type Liquid-cooled, 8-valve, DOHC 4-stroke twin
Displacement 925cc
Bore x stroke 93mm x 68mm (x2)
Compression ratio 9.0:1
Lubrication system Wet sump
Additional cooling Auto fan
Induction Turbocharged, 48mm EFI (x2)
Starting/back-up Electric/none
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FWIW,I have not given even a seconds thought to what I will do with the busa when it gets power upped. Have anyone given thought to twin turboing a busa with small turbos for super quick spool?
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Hmph,I just googled it and apparently it is done. Now to read up on it.
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https://engineswapdepot.com/?p=30839
https://www.enginelabs.com/news/compounding-boost-in-a-hayabusa-land-speed-engine/
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that is crazy! wow is all i have to say and truly the sky is the limit!!
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I'm thinking durability is the limit?