Has anyone had a chance to ride a sled with HM's new kit that has the Vi-PEC computer? I rode it at Turbo Days last year and I AM SOLD!!!! No matter whose kit you want to talk about, in the past it consisted of a control box. My 2009 Dragon ran great but there were always those few times in the day where I had to make adjustments to the box. My 2011 Pro was a little more sensative and those moments were a little more frequent. Now, with the Vi-PEC, all of that is HISTORY. This is the cleanest looking kit I have ever seen and has the best of both worlds, the power of a turbo and simplicity of a stocker. I never thought I would see the day but its here. Using pump gas, all I have to do is pull the rope and go. No matter what elevation I am at, I am getting a true 190 HP and if I want more its a pretty simple process.
HM Turbos - No More Messing with the "BOX"
- Thread starter MCSD409
- Start date
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Nubulin
Well-known member
Glad you are stoked. I also wonder about real world vipec reviews.
I hope my Push kit with the Vipec runs great too. No snow yet, so I just have to look at the pretty for now. The HM looks like a nice setup too. I went Push because I have ridden with Ken a few times and live 15 min away from his shop. Pretty hard to beat that, I can always go pound on his door!
I hope my Push kit with the Vipec runs great too. No snow yet, so I just have to look at the pretty for now. The HM looks like a nice setup too. I went Push because I have ridden with Ken a few times and live 15 min away from his shop. Pretty hard to beat that, I can always go pound on his door!
who sets up the vitec, the consumer or hm turbos?
That's interesting because I have the same convenience with Shane. The shop is pretty darn close.
MCSD409
How is the lag on the HM turbo? To date I have not even considered a turbo for my riding for the following reasons.
First, I live and start every ride at sea level. So if I run much boost, I'm paying the premium for AV gas or Race gas and really don't want the additional expense on my every day sled.
Second, When I get to ride I want to ride, not fiddle fu-k with the damn control box. I'm a family man now and my fatherly responsibilities take presidence over my personal recreational activities, so I don't get to get away to ride nearly as often as I used to. So I'm glad the Vipec and all Shane's R&D is paying off.
Third, While locally there really isn't that much tree riding, I refuse to give up having instant torque and acceleration wherever and whenever I want it! Some will say you can learn to fiddle fu-k with the throttle and minimize the lag but I would much rather just grab and go! At our local hill climb there are always the automotive turbo guys that putt thru the gates, if they can even get the sled halfway up and then try to make up time I between the long gates. Most are lucky to make it past halfway up.
Which leads me back to my original question. How is the lag? Does the Aero start building boost lower ( pre or right after engagement) than the automotive turbos? Is it usable and friendly on and off throttle? Are there any dead spots? If so what RPM? If I want to turn up the boost for a weekend with the boys, what gas is required and do I need to reclutch for the extra power? Thanks for your time and thoughts. Hope this isn't too far off topic.
How is the lag on the HM turbo? To date I have not even considered a turbo for my riding for the following reasons.
First, I live and start every ride at sea level. So if I run much boost, I'm paying the premium for AV gas or Race gas and really don't want the additional expense on my every day sled.
Second, When I get to ride I want to ride, not fiddle fu-k with the damn control box. I'm a family man now and my fatherly responsibilities take presidence over my personal recreational activities, so I don't get to get away to ride nearly as often as I used to. So I'm glad the Vipec and all Shane's R&D is paying off.
Third, While locally there really isn't that much tree riding, I refuse to give up having instant torque and acceleration wherever and whenever I want it! Some will say you can learn to fiddle fu-k with the throttle and minimize the lag but I would much rather just grab and go! At our local hill climb there are always the automotive turbo guys that putt thru the gates, if they can even get the sled halfway up and then try to make up time I between the long gates. Most are lucky to make it past halfway up.
Which leads me back to my original question. How is the lag? Does the Aero start building boost lower ( pre or right after engagement) than the automotive turbos? Is it usable and friendly on and off throttle? Are there any dead spots? If so what RPM? If I want to turn up the boost for a weekend with the boys, what gas is required and do I need to reclutch for the extra power? Thanks for your time and thoughts. Hope this isn't too far off topic.
I have heard guys say there is no way to not have turbo lag but I don't believe that's true with the Aerocharger. I have had two of them now, 2009 Dragon and 2011 Pro. I rode both sled for the first few hundred miles stock before I put the kits on. After the kits were on, I couldn't detect any noticable lag. In both cases, the sleds hit harder than they did as stockers. As far as the elevation and fuel, check out this link: http://hmturbos.com/resources/Snowtech-article.pdf
That is the beauty of the Vi-PEC, no more cluthing and changing things for elevation. You will get a true 190 HP on pump gas no matter what elevation you are riding.
That is the beauty of the Vi-PEC, no more cluthing and changing things for elevation. You will get a true 190 HP on pump gas no matter what elevation you are riding.
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sledstew
Well-known member
Hopefully I can help you out on this:
I tested alot with Shane and Levi last year and was the original guy that started testing in the US with the Vi-pec on the Pro RMK actually I introduced Shane to it.
1)How is the lag? The Lag on the aero is barely noticeable with the standalone because of such precise fuel and timing control I can honestly say that its better than a stocker, the crispness and response is like no other turbo that I have ridden to date.
2)On/Off Throttle-- The on off throttle is right there, tight trees there is no issue the only issue I see alot of with my customers is they originally want 10-12 psi boost and end up turning it down because the power is way more manageable in the trees. No blurping,gloating or stuttering. The only way the sled will ever and I mean ever stutter is when you wheelie and slam the exhaust full of snow Thats it!
3)Dead Spots- GONE FOR GOOD! No more wondering if you can blow down in a creek because it might bog or cut out on you. Folks thats GONE!
4) Turning up boost: The base 190 kit is setup to run real close to a safe injector duty cycle with maintaining max boost for elevation. What this means: If you ride 1000ft elevation it might run 5 psi boost and as you go up in elevation the ebc will bring the boost up to match your clutching, injector cycle etc to maintain the same HP all the time. The max boost on stock injectors is around 8 psi at 10000Ft.
5) Aftermarket Boost setup (high Boost): I am not going to reveal any info on how to do it but I will tell you its a 5 minute job to go from low to high boost once the bigger injectors are installed, very clean and easy process.
Just some neat info for ya:
I tested the last time in May with Shane at 7000ft elevation around 40 degrees F outside ,sled ran perfect brought it home and fired it up a couple weeks ago at 1667 ft elevation and 83 Degrees F. The sled ran awesome for the little bit we ran it on the dyno and the grass at 100+MPH
Any other questions feel free to ask Ill try and help
Jake
Well said Jake. I am the type of guy who doesn't know a lot about how to make it work nor am I interested in learning. I just want it to work and don't want to waste riding time trying to figure it out. That system is finally here.
I love the idea of a stand alone and will most likely have one on my next sled. Would be on this one but think I'm gonna wait till they have a year or two on them. I definatly prefer an automotive turbo to an aerocharger and really liked how the tbbt worked on a cat, but Has ANYONE actually had the push pro kit on the snow yet or was all the tuning so far done on it on the dyno this summer?
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sledstew
Well-known member
Never tested on the snow,testing from what I hear started this week in Russia,kinda funny since they had no Idea about this system until they walked through our trailer last year in Cooke??????????
why the frown? Isn't it a good thing there are people willing to test it?
Aero has variable vanes. Lower RPM has a different vane pitch than higher RPM. Vanes change pitch through RPM range.
Sorta like changing gearing...optimizes boost and minimize lag.
Another thing with race gas...the higher the octane, the better chance of lag. REGARDLESS of charge tube dimensions. If someone could figure out how to get pump gas to the bottom end throttle and then a mix of race gas in mid range on low boost, then full race gas on top end with high boost, then lag would be even less. Throttle response would get WAY better.
In theory. I think Vipec CAN do that. I threw out this scenaria to Shane last May when I went along to ride at Lolo Pass.
Shane and I have talked about that. I think he and Levi can make that work. Might involve some creative fuel cell work...but hey, that Vipec is very capable of making that happen.
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sledstew
Well-known member
Very Good point Scott:
I will address this issue also:
Datalogging: Lets say the customer is in revy and is having issues with his sled, the customer can hook a laptop up to the Vi-pec and run a datalog for us(takes about 2 minutes). They save that datalog just like a normal computer file and send it to Shane or levi or me if need be and we can troubleshoot any sensor or 90% of most issues through that data file.Here are just a few of the things we can look at:
Sled Voltage
Boost
TPS-Throttle position
RPM
Injector cycle
Barometric
Air/Fuel-- if you opted to buy a gauge (not neccessary for the kit)
Engine Coolant temp
Intake air temp
Failure of Throttle safety switch
Failure of speed sensor
Track speed ( if you have done a moving datalog)
Kill switch failure
The list goes on
I will address this issue also:
Datalogging: Lets say the customer is in revy and is having issues with his sled, the customer can hook a laptop up to the Vi-pec and run a datalog for us(takes about 2 minutes). They save that datalog just like a normal computer file and send it to Shane or levi or me if need be and we can troubleshoot any sensor or 90% of most issues through that data file.Here are just a few of the things we can look at:
Sled Voltage
Boost
TPS-Throttle position
RPM
Injector cycle
Barometric
Air/Fuel-- if you opted to buy a gauge (not neccessary for the kit)
Engine Coolant temp
Intake air temp
Failure of Throttle safety switch
Failure of speed sensor
Track speed ( if you have done a moving datalog)
Kill switch failure
The list goes on
I did much more than just ride it on a demo. I have had two of HM's kits (2009 Dragon, 2011 Pro). I snow checked a sled last year but then found out I wasn't going to get to ride due to having two surgeries. My first ride was on Turbo Days where I got to ride the sled with the Vi-PEC as well as several others including the 2013 stock demo from Hamilton Polaris. I got a lot of seat time on the Vi-PEC that day but wasn't completey convinced that I couldn't make it faulter. I took it out three more times on my own and did everything I could think of to make it fall on its face but couldn't, not even a stutter. I just picked up my Snow Check for this year and CAN'T WAIT to get the new kit installed. I have absolutely no reason to believe that mine won't run exactly like that.
D
dmaxd2500
Well-known member
Excellent thread....finally getting some real, legit info about this system out there. I've talked to Shane numerous times and he says the biggest problem he faces is customer misinformation or lack of information completely. His setup is the real deal! I'm glad to see some first hand experiences shared here on the forum. Thanks to MCSD409, Sledstew, and Scott for helping to fill in the blanks, good work. I absolutely CANNOT wait to ride mine the season!
Cheers
Cheers
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