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Joey, this dyno chart shows the 800 with durability kit coming in at 155, but you state it makes 160. Which is it?
Joey, this dyno chart shows the 800 with durability kit coming in at 155, but you state it makes 160. Which is it?
Your thread title says "high altitude" I'm assuming this means you ran your high compression head for this test? What fuel was used for this dyno run? You have no hp numbers listed on your site for your head or your durability kit but if I put them together they magically make 160hp? You also mention the use of a fuel controller with your head and that will give you 5hp. Just want to make sure I'm understanding everything before I get all "hostile"!!!!
Yes thank you for your inquiry. Our Dyno is a Superflow 902 and is extremely accurate. It measures actual torque then convert to a HP number. Same Dyno as Dynotech Reasearch uses out in NY, our numbers compare almost identical to theirs. I am the dyno technician and I pay close attention to detail. Our runs are only vary less than 1% in day to day extremes with the correction in place. I can not speak for the HP of competitors but I assure you that if you speak to a customer with one of our kits they will back up our numbers. Twin pipe 860 should have the potential to have higher peak numbers but will usually not make the same Torque numbers. The 2013 Polaris ECU starts detuning timing at higher RPM so that may have been some of their issue?????
Our elevation is about 800 feet above sea level.
Lets do some math
1. 860 is 1.075 times bigger than a 800
2. an 800 with a BMP durability kit and Low Alt Head makes 160 HP
160 times 1.075 is 172 so with the stock port timing this would be a expected number.
3. Now add Porting, Pipe, Higher Compression head and V-Force3 Reeds and now 184 is a REAL achievable number.
Please keep your mind open to facts.
I prefer to keep releasing our Dyno charts to the public rather than just saying we make more power or giving peak numbers.
Like I have always said I am more than happy to answer any question. I will try to keep up on the post.
Joey, I think you must mean a 860 is .175 bigger then a 800.
1.075 I think anti freeze might be running out the sides.