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[guppytrash]

I know there are some owners with the NEW thundermax and I was hoping for some updates.



 





 

[jonandflo]

Mine was shipped Thursday. I expect to install it monday evening, along with the Vance & Hines power duals/rush slip ons. I'll let you know after the first ride.

[guppytrash]

jonandflo

thanks

[jonandflo]

I installed the new Thundermax on my 2009 SERG Monday. The total installation took about 45 minutes, with most of the time spent on routing the wide band oxygen sensor cables. The unit came programmed with a base map for my bike, so I didn't bother doing that. It started instantly, like always and settled down to a warm idle of about 975 rpm. It took about 5 miles of riding for the unit to dial in the tuning, and my seat of the pants impression is that it pulls about like my softail which has a 120 cu in Merch Performance motor/mikuni HSR45/Samsom long shots. The merch has a bit more low end torque, but the SERG revs faster. It ran flawlessly during my initial ride, and the improvements after removing the stock exhaust/catalytic converter are substantial. I'm quite satisfied, and I vastly prefer this to dyno tuning. I will probably access the unit to lower the idle speed to about 850. I still had really good oil pressure at the 975 default warm idle. With the stock ECU and catalytic converter the bike ran pretty hot, with lots of heat around that catalytic exhaust. My oil temps were routinely about 225-245 degrees F. After a 12 mile ride with the new setup my oil temperature was only 145 degrees F. Now that is an improvement! The amount of heat on the right side of the bike is markedly reduced.

[guppytrash]

Thanks

When you get so more miles, let me know how the fuel mileage works out.  I would also prefer this to dyno time. 
Good news on first impression.  Keep me updated

Thanks
gt

[jonandflo]

Okay, I don't have any milage numbers to report, but I've ridden quite a few miles, including some freeway time. The combination of the thundermax/power duals/rush slip-ons is just great. I don't have any dyno numbers, and I have no plans to dyno test the bike. I'm more interested in how it feels when I ride: it feels great! It pulls noticeably harder at freeway speeds. Acceleration in 5th/6th gears is much better. Now I need to learn to moderate my enthusiasm because it pulls up to 90 mph very quickly in 6th gear. I'm confident that the base map I was provided was pretty good, and the wide band/closed loop tuning has really fine tuned the fuel maps. I have some experience with using dyno tuned add-on fuel map modifiers, like the power commander, and this is vastly superior. When I felt the need for speed I used to pull out the old trusty softail with the 120 inch Merch/mikuni HSR45/samson shotgun pipes, but why punish myself with that vibration when I have this rubber mounted rocket?

[hdctss]

how much was it?

[CVORick]

I installed the new Thundermax on my 2009 SERG Monday. The total installation took about 45 minutes, with most of the time spent on routing the wide band oxygen sensor cables. The unit came programmed with a base map for my bike, so I didn't bother doing that. It started instantly, like always and settled down to a warm idle of about 975 rpm. It took about 5 miles of riding for the unit to dial in the tuning, and my seat of the pants impression is that it pulls about like my softail which has a 120 cu in Merch Performance motor/mikuni HSR45/Samsom long shots. The merch has a bit more low end torque, but the SERG revs faster. It ran flawlessly during my initial ride, and the improvements after removing the stock exhaust/catalytic converter are substantial. I'm quite satisfied, and I vastly prefer this to dyno tuning. I will probably access the unit to lower the idle speed to about 850. I still had really good oil pressure at the 975 default warm idle. With the stock ECU and catalytic converter the bike ran pretty hot, with lots of heat around that catalytic exhaust. My oil temps were routinely about 225-245 degrees F. After a 12 mile ride with the new setup my oil temperature was only 145 degrees F. Now that is an improvement! The amount of heat on the right side of the bike is markedly reduced.

Sounds just about impossible...

[marshall10]

Sounds just about impossible...

wouldn't the oil need to get over 212F to burn off the water? Sounds like it's too cool, and not in the good way.