Unique Turbo Sportster - Satisfying Workshop Build

Pre-production turbo kit is available, reach out to us via our website to inquire!

www.doctor-motorcycle.com

You can also contact us via e-mail, which can be found on our website, or under the "contact" section of our channel. www.doctor-motorcycle.com

The finished bike has a carbon sealed T25 style turbo with an HSR42 style carburetor + thunder products Thunderjet, which allows me to add or subtract fuel at wide open throttle with the twist of a knob. The finished bike was running on pump gas and 8 PSI of boost, the boost can go as high as 15PSI if you pull more timing and run E85 or E100.

Max boost can go as high as 12-13 on 110 race gas, but the cooling effect of E85 is much greater which is why you can go higher with boost on ethanol. I don't doubt that with Ethanol in the tank and 15PSI of boost, this bike would be capable of 130-140rwhp with a completely stock 1200 engine. Please keep in mind that the pre-2003 sportsters had less aggressive cams and also did not have the cylinder heads from the Buell XB like the 2004+ bikes do. Just putting a healthy set of cams on this bike would transform it. You could make similar numbers to a stock motor E85 high boost bike on 9PSI and pump 91. A Redshift 575 would be a great compliment to this kit, and is the cam this bike will eventually be getting.