Purchase 2 Stroke Spreadsheets


OK now is the moment of truth. Time to be pro-active. If you want something done right you have to do it yourself. Just do it. Buy the software. Don't worry, if you have any problems I can talk you through them. I'm here to help. I want you to be successful at improving your ride. I tell you it is an amazing feeling riding a bike that has your own design changes on it. Just amazing. Can anyone do this? Yes, of course! I knew nothing about metal works when I started out. But then I sculpted my own head with squish band, made a boost bottle, balanced my crank, ported the cylinder, and made my own pipes. Turn the page to a new chapter in your book of 2 stroke experience and buy it. Live wide open throttle!

GUARANTEE: If you don't get good results then I'll give you your money back. But before doing anything you'll need to email me the spreadsheet so I can make sure you've used it correctly.

get it thru PayPal: Just email me what you want at 19jaguar75@gmail.com and just send the right amount of money to my Paypal account at that email address and I will email you the spreadsheets. Click onto the product name (above the screen shot) to learn about it before buying. These work on both Windows or Macintosh if you have Excel. (The only difference is some coloration of cells and page sizing.)
Let me know if you are going to use them on a Mac computer.

Expansion Chamber Calculators
This is the best pipe calculator without excessive need of every engine detail.

Squish Velocity Calculator
All engines need to fine tune for correct squish because of manufacturing tolerances.

Porting Calculator
Synchronize port durations with exhaust port size for desired peak power RPM.

Jetting Calculator
An exacting way to determine jetting changes without buying a ton of jets and doing it trial and error.

Crank Balance Calculator
Put an end to annoying engine vibrations. This is the best on the market.

Boost Bottle Calculator
For trail and street bikes to eliminate the pre-powerband power dip.

Fuel/Oil Ratio Calculator
Calculate the minimum amount of oil to use based on oil viscosity and estimated upper cylinder temp.


All 7 Calculators discounted 40%


6 Calculators compatible with Open Office discounted 40%