スノーモービル 1/4 Mile - Arctic Cat XF 9000 Turbo
https://hama-sush-jp.pro/ghostripon/entry-12389815222.html
上の関連です。
NHRAニューイングランド選手権になるのだろうか？
アメリカでもスノーモービル改、1/4 Mileを走ってました。
しかも速い（笑）
レギュレーションも、シッカリしたものがある↓
使うエンジンによって、最低重量（ライダー+装備+車両）が決まっている。
レギュレーションから、4stのターボが一番有利なので、ハンデとして最低重量が重く設定されているとわかる。
2018 Pro Stock Snowmobile Rules
http://www.nhradiv1.com/content/divtech.asp?articleid=53670&zoneid=24
2 STROKE 3 CYLINDER CARBURETED ENGINE COMBINATION
Any OEM snowmobile crankcase within brand is permitted. Must be a two (2)-stroke, 2 cycle naturally aspirated, case reed engine with a limit of 1000cc (+2%)
Nitrous oxide, super charging, turbo charging or fuel injection is NOT permitted.
Minimum weight is 650 pounds with rider and gear.
2 STROKE 3 CYLINDER EFI ENGINE COMBINATION
same as for the Carbureted
2 STROKE 4 CYLINDER CARBURETED YAMAHA COMBINATION
Any OEM snowmobile crankcase within brand is permitted using stock bore centers. Must be a two (2)-stroke, 2 cycle naturally aspirated, cylinder reed engine with a limit of 1000cc (+2%) displacement and is limited to four (4) in line cylinders.
Nitrous oxide, super charging, turbo charging or fuel injection is NOT permitted.
Minimum weight is 675 with rider and gear.
4 STROKE TURBO COMBINATION
Limited to twin or triple cylinder applications available on production sleds. Must use Stock OEM (unaltered) turbo correct for the application, OEM air to air intercooler and associated components, stock, Vi-Pec or Link ECU.
Minimum weight is 750 pounds with rider and gear.
650pounds ＝ 294.835kg
675pounds ＝ 306.175kg
750pounds ＝ 340.194g
155. 69MPH ＝ 250km/h
Tiina Duncanson collects the Wally in Epping. Duncanson raced her Pro Stock Sled into the final defeating Brian Garbus with 8.269 ET at 155. 69 MPH.
NHRA Prostock Snowmobile final Brainerd 2017
8 SEC SNOWMOBILES!
2018 New England Nationals Pro Stock Sled winner Tiina Duncanson
https://www.youtube.com/watch?v=OkNgJE9NhAA
NHRA Prostock Snowmobile final Brainerd 2017
https://www.youtube.com/watch?v=R5FetBIsx4A
8 SEC SNOWMOBILES! PRO STOCK SNOWMOBILES AT BURNDOWN at SUNDOWN RT66 JOLIET '15!
https://www.youtube.com/watch?v=Eo4-qUcBmiw