X. fuel octane recommendations – BoonDocker YAMAHA: Apex Turbo User Manual
Page 16

BoonDocker – 1585 Hollipark Dr. Idaho Falls, ID 83401 – 208-542-4411 / 877-522-7805
www.boondockers.com – email:
– fax: 208-524-7381
Revised 05-07-07
Page 16 of 16
X. Fuel Octane Recommendations
The octane your engine needs depends on many variables such as air density (elevation/temp), engine compression ratio,
camshaft timing, and ignition timing. The table below is provided as a general guideline only – your engine requirements
may be different.
Note: When using pump gas, be aware that the fuel quality can vary and has been known to be less than that shown on the
pump! We recommend you obtain fuel from a known source and/or mix with race gas if in doubt.
Boost Æ 8lbs
10lbs
12lbs
14lbs
16lbs
Comp.
Ratio Æ
11.8:1 9.0:1 11.8:1 9.0:1 11.8:1 9.0:1 11.8:1 9.0:1 11.8:1 9.0:1
0 ft
95 93 100 95 105 100 x x
x x
2500 ft
93 92 98 94 103 98 108
103 x x
5000 ft
92 91 97 92 102 97 107
102 112 107
8000 ft
91 91 95 91 100 95 105
100 110 105
octane shown is determined by (R+M)/2
x = not recommended when using stock injectors and fuel pump
XI. Warranty, Terms & Conditions
Returned Goods – No merchandise will be accepted without prior approval. A RMA number (Return Merchandise
Authorization) provided by Boondocker is required before a return will be accepted. A 20% handling and restocking
charge will be applied to returned merchandise. No unauthorized returns will be accepted.
Limited Warranty – Boondocker warrants its product to the original purchaser against workmanship defects for a period
of 90 days, commencing from the date of product delivery to the Consumer.
Maximum Liability – The maximum liability of Boondocker in connection with this warranty shall not under any
circumstances exceed the price of the product claimed to be defective.