M8 128 kit 11:1 with mild cam and stock TB
#11
@FLSTFI Dave I don't want to hijack this thread, but may I ask you how the streetabilty is with your build? In other words...how is it on long trips and heat? I'm in the midst of a 128 build and not sure how radical I want to go.
Thanks!
Thanks!
Roll on passing power is incredible.
#12
Its very well mannered, easy to ride. I have just over 4750 miles on the build. I have done 6 or 7 group rides with 10 bikes or so in the mountains never an issue, easy to ride and smooth. I have done several 300 mile days on the bike in the mountains. That said no really long trips yet. Will be riding it to Eureka Springs AR this week end, I doubt it will be an issue at all, does well with cruise set at 80mph. Just be careful if you grab a hand full of throttle over 3000 rpm.......
Roll on passing power is incredible.
Roll on passing power is incredible.
#13
TTS will not give cam specs, they tell you what compression you need for the cam to work best. Many people have great results following this. For a big inch I would at least use the TTS 200
CR-480 is a good choice for lower compression big in builds. Darren of Shaffer Performance uses that cam in lots of his builds with great results. He has also built a mild compression big inch with the CR-482. It had good numbers too, and good curve. I talked with him about using it with more compression. Shocked at how much compression woke that came up.
Check out Dyno runs Lots of different builds with different cams. quite a few CR-480 builds. My CR-482 build.
Also check out Builds with testing of how each step helps, good info. Towards the end of this link Darren has a CR-482 build with much lower compression than I have.
CR-480 is a good choice for lower compression big in builds. Darren of Shaffer Performance uses that cam in lots of his builds with great results. He has also built a mild compression big inch with the CR-482. It had good numbers too, and good curve. I talked with him about using it with more compression. Shocked at how much compression woke that came up.
Check out Dyno runs Lots of different builds with different cams. quite a few CR-480 builds. My CR-482 build.
Also check out Builds with testing of how each step helps, good info. Towards the end of this link Darren has a CR-482 build with much lower compression than I have.
Really opened up some ideas here.
#14
#15
That kind of extreme build 12:1 130” is what I don’t want. Very impressive numbers though. My thinking was that even WM8-408 and 11:1 would be too much for my use of travel bagger. I want it to feel relaxed with some more torque and power. 128 mod is so easily available that I want to take it.
#16
#17
#18
TTS will not give cam specs, they tell you what compression you need for the cam to work best. Many people have great results following this. For a big inch I would at least use the TTS 200
CR-480 is a good choice for lower compression big in builds. Darren of Shaffer Performance uses that cam in lots of his builds with great results. He has also built a mild compression big inch with the CR-482. It had good numbers too, and good curve. I talked with him about using it with more compression. Shocked at how much compression woke that came up.
Check out Dyno runs Lots of different builds with different cams. quite a few CR-480 builds. My CR-482 build.
Also check out Builds with testing of how each step helps, good info. Towards the end of this link Darren has a CR-482 build with much lower compression than I have.
CR-480 is a good choice for lower compression big in builds. Darren of Shaffer Performance uses that cam in lots of his builds with great results. He has also built a mild compression big inch with the CR-482. It had good numbers too, and good curve. I talked with him about using it with more compression. Shocked at how much compression woke that came up.
Check out Dyno runs Lots of different builds with different cams. quite a few CR-480 builds. My CR-482 build.
Also check out Builds with testing of how each step helps, good info. Towards the end of this link Darren has a CR-482 build with much lower compression than I have.
#19
Its very well mannered, easy to ride. I have just over 4750 miles on the build. I have done 6 or 7 group rides with 10 bikes or so in the mountains never an issue, easy to ride and smooth. I have done several 300 mile days on the bike in the mountains. That said no really long trips yet. Will be riding it to Eureka Springs AR this week end, I doubt it will be an issue at all, does well with cruise set at 80mph. Just be careful if you grab a hand full of throttle over 3000 rpm.......
Roll on passing power is incredible.
Roll on passing power is incredible.
#20
That kind of extreme build 12:1 130” is what I don’t want. Very impressive numbers though. My thinking was that even WM8-408 and 11:1 would be too much for my use of travel bagger. I want it to feel relaxed with some more torque and power. 128 mod is so easily available that I want to take it.
I did not use the WM8-408 and several other cams with over .500 lift. Great cams, but for a bike going to see 15K or more miles a year I felt it was to hard on the valve train. It was recommend with that much lift and pressure on the valve stem tips they be inspected every 10K miles. Also the M8 likes different duration on intake and exhaust.
My build is not as extreme as you think. My target was 152 square though.