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Engine differences: 1980 - 1983 GS1100E

  • Thread starter Thread starter Guest
  • Start date Start date
Honestly tho man, you are not gonna notice the difference. They are all fine machines, with pleanty of HP for an every day joe rider. If you were Johnny Racer, then maybe you could get more involved in power, but 10HP isnt a big gain either way..
 
TheCafeKid said:
Honestly tho man, you are not gonna notice the difference. They are all fine machines, with pleanty of HP for an every day joe rider. If you were Johnny Racer, then maybe you could get more involved in power, but 10HP isnt a big gain either way..
Click to expand...
I agree with you 100%, and the engine will most probably left stock. However these hp differences intrigued me and curiosity got the best of me. I had to know LOL!
Thank you! :lol:
 
TheCafeKid said:
Honestly tho man, you are not gonna notice the difference. They are all fine machines, with pleanty of HP for an every day joe rider. If you were Johnny Racer, then maybe you could get more involved in power, but 10HP isnt a big gain either way..
Click to expand...

What he said...

Also,.. a radius valve job has only one angle and that is the 45 degree seat the valve seats (sits) on. Instead of having a top cut (angle) and botton cut (angle) above and below the actual seat, a radius cutter leaves a very nice, smooth radius cut above the 45 seat, flowing into the chamber and below the 45 seat, flowing into the bowl, and does this in one operation. Air does NOT like corners. A radius valve job will improve air flow over and around the valve at low and mid lifts. Mostly below the .250 lift range. The stock cams are in the .276 - .296 lift range anyway. A good valve job and back cutting the valves 37 degrees and you will have a good piece indeed. Many a GS 1100/1150 has run deep into the low nines with a stock unported head with good seats and valves. Like Josh said..if your intent is street riding only you don't need a big head. Take the head to a good shop for the best valve job you can find. If you want more..you can have it with a more effecient flowing head. A whole bunch more !

Terry
 
headsbikesmopars said:
Like Josh said..if your intent is street riding only you don't need a big head. Take the head to a good shop for the best valve job you can find. If you want more..you can have it with a more effecient flowing head. A whole bunch more !
Terry
Click to expand...
It will be a street ride ... nothing else. However, when possible, I thrive to keep myself informed and know about the possible options.
Thanks Terry!
Normand
 
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