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Vi-Pec hm turbo rmk on groom trail.

V

Vi-PEC Powersports

Well-known member
here is another 18 minutes not edited !! video of an hm turbo rmk 2011 mostly on groom trail, at +5 celsius, at 8 psi on 91 pump gas, 300ft . at 8::50 a little crash !! LOL! and at 15:25 my pipe is disconnecting from the turbo outlet....
don't be afraid to drive your 2 stroke long or short track on groom trail(steady throttle mostly)...

 
Ya....show us some climbing footage please!!

Sent from my SCH-S720C using Tapatalk 2
 
The purpose of this video is to show the versatility of the Vi-Pec ECU on steady throttle on a 2 stroke application, i will gladely post vids of the sled climbing when i go back to west yellowstone, revy or cooke city.


Vi-pec powersports
 
That's awesome. I havn't seen a 2 stroke turbo you could hold steady at 6000 and not cook it. That thing runs good upside down also. How much is left on the table on a stock pro by just adding a vipec?
 
we have some tunes with 11hp more and much better/improve torque curve/numbers(especialy low-mid range since OEM are stock with EPA and cannot be aggressive in that zone), just like on a turbo application. the problem in the powersport industry is the fact that all kinda numbers are circulating and that people are most of the time refering horsepower to boost.The power is all about the VE(volumetric efficiency), how efficient you are with the air your engine can swallow and how and when you are burning the mixture(this is the science behind HP) .So say for an 11hp/improve ignition curve/adjusted clutching more over a stock mapping, it is translating in a 6-7 sled lenght advantage on 900 ft drag race(with same reaction time and grip on start) wich is enormous but in HP talking, for most 11hp is nothing because we are refering to the B.S. circulating in that industry.We all have been told "this pipe gives 14 hp, this head 20 hp, this intake 8 hp etc.....all pipe and i mean all pipe we ever tested on a stock engine was reducing the power output, at best matching factory hp and remember, all that with a standalone where we could play with any parameters to add fuel,igniton,compensation etc. and we never was able to add 1 hp to the majority of the pipe tested and on a professional engine dyno, not your typîcal torque arm land`n sea innacurate dyno.....so it is very difficult to talk hp in this industry since so many "unverified hp claims" are thrown to the customers, ending up building a big myth about hp/power output.With a different ignition and fueling over stock you can improve reliability of those motors also, manufactures knows but are stock with EPA, that is where a standalone ECU can also be benefical. This can go on and on with unverified hp numbers on a ton of product, this is why the majority of our ECU user on turbo application a seeing a big hp improvement with less boost or same boost, with the ECU we can maxed out the volumetric efficiency of those engines. Talking with our partner turbo performance/cody philips racing two weeks ago, one particular turbo turbo kit is showing a 10-11 psi boost on the gauge and once installing a real MAP sensor, it is in fact running 5.5-6 psi!! the gauge is so innacurate! but all the folks running this particular kit thinks they are running 10-11 psi, so when they hear we are running same kit at 6 psi with a much improve power output , they are simply not believing it.......it is all about efficiency and not numbers.
 
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Ya I know precision what you were showing. Its great. I just have problems with my silber on full throttle chops when climbing or full throttle then going to 60% throttle. Mark my words, I WILL GET A VIPEC, I just need to scrape up the cash. I totally see the advantages and would love to not have to mess around with a controller constantly.
Thanks dude, keep up the good work,
Jim
 
we have some tunes with 11hp more and much better/improve torque curve/numbers(especialy low-mid range since OEM are stock with EPA and cannot be aggressive in that zone), just like on a turbo application. the problem in the powersport industry is the fact that all kinda numbers are circulating and that people are most of the time refering horsepower to boost.The power is all about the VE(volumetric efficiency), how efficient you are with the air your engine can swallow and how and when you are burning the mixture(this is the science behind HP) .So say for an 11hp/improve ignition curve/adjusted clutching more over a stock mapping, it is translating in a 6-7 sled lenght advantage on 900 ft drag race(with same reaction time and grip on start) wich is enormous but in HP talking, for most 11hp is nothing because we are refering to the B.S. circulating in that industry.We all have been told "this pipe gives 14 hp, this head 20 hp, this intake 8 hp etc.....all pipe and i mean all pipe we ever tested on a stock engine was reducing the power output, at best matching factory hp and remember, all that with a standalone where we could play with any parameters to add fuel,igniton,compensation etc. and we never was able to add 1 hp to the majority of the pipe tested and on a professional engine dyno, not your typîcal torque arm land`n sea innacurate dyno.....so it is very difficult to talk hp in this industry since so many "unverified hp claims" are thrown to the customers, ending up building a big myth about hp/power output.With a different ignition and fueling over stock you can improve reliability of those motors also, manufactures knows but are stock with EPA, that is where a standalone ECU can also be benefical. This can go on and on with unverified hp numbers on a ton of product, this is why the majority of our ECU user on turbo application a seeing a big hp improvement with less boost or same boost, with the ECU we can maxed out the volumetric efficiency of those engines. Talking with our partner turbo performance/cody philips racing two weeks ago, one particular turbo turbo kit is showing a 10-11 psi boost on the gauge and once installing a real MAP sensor, it is in fact running 5.5-6 psi!! the gauge is so innacurate! but all the folks running this particular kit thinks they are running 10-11 psi, so when they hear we are running same kit at 6 psi with a much improve power output , they are simply not believing it.......it is all about efficiency and not numbers.

Good info & impressive videos!

Do you have any plans or have you already done for VIPEC mapping the HM/Aero Turbo (or other turbo) on a RZR 900 XP?
 
Do you have any video footage showing what your EGT's are at running down the trail with the Vipec? I'm curious to compare what the Vipec runs at vs. the Doebeck. Mine runs hot EGTs going down the trail but I also know a guy who trail rode a similar setup to mine at high speeds for extended periods, not knowing any better, and didn't have any problems. Knowing what I know now after installing the EGT gauge, he had to be pushing 1400-1450deg EGTs constantly for miles and miles. I've also testied holding mine at a steading throttle setting going down the trail for 30sec to a min straight and everything was fine. I haven't been ambitious enough to pull my plugs and hood and check for wash or anything like that. And mind you going down the trail the EGTs spike over 1400deg fast on my setup if I'm not brapping the throttle constantly.
 
Do you have any video footage showing what your EGT's are at running down the trail with the Vipec? I'm curious to compare what the Vipec runs at vs. the Doebeck. Mine runs hot EGTs going down the trail but I also know a guy who trail rode a similar setup to mine at high speeds for extended periods, not knowing any better, and didn't have any problems. Knowing what I know now after installing the EGT gauge, he had to be pushing 1400-1450deg EGTs constantly for miles and miles. I've also testied holding mine at a steading throttle setting going down the trail for 30sec to a min straight and everything was fine. I haven't been ambitious enough to pull my plugs and hood and check for wash or anything like that. And mind you going down the trail the EGTs spike over 1400deg fast on my setup if I'm not brapping the throttle constantly.

best operating temp should be 1000 deg to 1100 deg max......at 1450 deg you are REALY looking for damages.
 
best operating temp should be 1000 deg to 1100 deg max......at 1450 deg you are REALY looking for damages.

That is NOT what I asked. I said do you have any actual video footage showing it. Have you actually run egts at all in your testing? I'd like to see video showing the sled going down the trail at 50mph steady throttle for a minute and what your EGT's look like during this time frame.

I have heard reports that guys have run EGT gauges on stock Pro and say they run down the trail at 1400deg. That's talking a stock sled. How do explain this? Stock sleds aren't burning down going down the trail.
 
That is NOT what I asked. I said do you have any actual video footage showing it. Have you actually run egts at all in your testing? I'd like to see video showing the sled going down the trail at 50mph steady throttle for a minute and what your EGT's look like during this time frame.

I have heard reports that guys have run EGT gauges on stock Pro and say they run down the trail at 1400deg. That's talking a stock sled. How do explain this? Stock sleds aren't burning down going down the trail.
your sled has an egt from factory, why add another one or two?? your pipe egt is your friend,use it. we are testing on development with added egt's while programming and testing new setup/maps.....Do i have videos? of course.....why not buy a vi-pec ECU and plug in your extra egts and log them yourself and record a nice video YOU doing it? i'm not sure if you understand what's involved in creating an ECU like the vi-pec ECU for all those motors? asking questions, then replying in capital letters asking for tuning informations when not an actual user(maybe you are in fact...i don't know) of the said product....i don't get it....maybe i am wrongly interpreting the tone of your last reply.....anyway i hope you get what i mean.
 
Wouldn't the stock egt sensor in the pipe read quite a bit lower than what the normal add-on egt would because of their location? (4" from piston or something like that?) I have no idea how much different, but maybe that is why precision is seeing different temps then what most have experienced in the past.

And Turbo Matt, shame on you for wanting some actual information about a product before considering purchase, I mean it's only $2500 throw it down so you can video it yourself. (This is sarcasm fyi!)
 
Pipe temp

tdorval, I have no physical data but simple physics is on your side you have hot compressed air that you've allowed to move further from the source and expand. IE we have the heat shield there to help try and keep some of that heat in the pipe. A 300° drop seems a bit much but plausible.
 
Wouldn't the stock egt sensor in the pipe read quite a bit lower than what the normal add-on egt would because of their location? (4" from piston or something like that?) I have no idea how much different, but maybe that is why precision is seeing different temps then what most have experienced in the past.

that is exactly what it is.

And Turbo Matt, shame on you for wanting some actual information about a product before considering purchase, I mean it's only $2500 throw it down so you can video it yourself. (This is sarcasm fyi!)

:tape:...
 
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