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Thread: Low Cost / High Performance GS1100E Head work

  1. #21
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    Quote Originally Posted by posplayr View Post
    67 vette ? In a heart beat .
    Always been the 63 split window that turned me on but I know they don't offer as much performance. Judging by the last Barret Jackson numbers I'm not alone in my lust.

  2. #22
    posplayr's Avatar
    posplayr is offline Forum LongTimer GSResource Superstar
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    Default Truth be told,

    Always been the 63 split window that turned me on but I know they don't offer as much performance. Judging by the last Barret Jackson numbers I'm not alone in my lust.
    I would rather have the 64 or 65 rag top vette .
    Carburated 365 hp 327 suites me fine.

    Pos
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    "The smallest giant of mankind, is he who stands on the shoulders of a larger giant who himself stands on the shoulders of yet a larger giant, and therefore sees the most light from GOD." Posplayr 2017 adapted from : Bernard of Chartres


  3. #23
    cbxchris Guest

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    Quote Originally Posted by posplayr View Post
    67 vette ? In a heart beat .
    I had a 67 vette 427 with tri power. I agree with ya. I have a slightly modified crossfire srt6 that will eat most any muscle car of the era. Amazing what a modern super charged v-6 can do.

  4. #24
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    I've got a 1.4 liter that will eat almost every Vette on the road! Ray.
    85GS1150E 83GS1100ESD 83GS1100SD 83GS1100ED 82GS1000SZ 96GSXR1500Dragbike 96GSXR1400Dragbike 90GSXR1166Dragbike 04SDG110PITBIKE + 8 Quads! "Life is tough! It's even tougher if you're stupid!" John Wayne

  5. #25
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    Quote Originally Posted by rapidray View Post
    I've got a 1.4 liter that will eat almost every Vette on the road! Ray.
    Some form of a Busa Ray????
    83 GS1100ES





  6. #26
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    Come on! This is a GS site!!! I have a 1.4 liter GS!!! LOL!!! Ray.
    85GS1150E 83GS1100ESD 83GS1100SD 83GS1100ED 82GS1000SZ 96GSXR1500Dragbike 96GSXR1400Dragbike 90GSXR1166Dragbike 04SDG110PITBIKE + 8 Quads! "Life is tough! It's even tougher if you're stupid!" John Wayne

  7. #27
    Old Colt Guest

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    Quote Originally Posted by cbxchris View Post
    I had a 67 vette 427 with tri power. I agree with ya. I have a slightly modified crossfire srt6 that will eat most any muscle car of the era. Amazing what a modern super charged v-6 can do.
    Some people think they are fast, but they do not even know what fast is.
    We are all aware of the new stuff out there and this site is not for the new stuff. We are here for vintage Suzukis.

  8. #28
    jabberjoe87 Guest

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    Quote Originally Posted by jwhelan65 View Post
    Some form of a Busa Ray????
    Probably a corvair or however you spell it

  9. #29
    posplayr's Avatar
    posplayr is offline Forum LongTimer GSResource Superstar
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    Default GS1100ED Head update

    Wanted to show some of the results of this thread and teh work Terry at headsbikesmopars did

    http://www.thegsresources.com/_forum/member.php?u=2120

    I sent a bone stock head 24 bolt head (15K miles on it) to Terry to up the horsepower on my GS1100ED. I was planning on an 1168 cc BB kit and wanted to wring a few more horsehower out of the puppy, but not ruin the driveability for the street. I wanted to put out more than a stock 1150, but not turn my bike into a rip snorting monster.

    I could have gone 28.5/24mm v.s. just doing the stock 1150 intake valves; I could have gone Web 0.348" lift v.s. the 0.340's ; I could have degreed the cams for 110/110 instead of 105/107 . If I had i would be measuring out a 6" over swing arm as this baby already easily lift the front wheel in 1st and 2nd gear. And that is with SLOW roll ons and NO 1/4 turn throttle. Of course SLOW is relative as redline comes up pretty quick.

    Terry went to town to create a wonderful street head. He pushed the CFM up from stock about 78 CFM to about 95 cfm at my usable lift. He used 28mm 1150 intakes, backcut the valves and ported as shown in the pics. Bill (Chef) thought it was an aggressive port (I don't know), but the bike runs great. Idles very strong, pulls very strong and has lots of low end grunt.

    Funny thing is Bill and I run near identical bikes. Main differences are the heads and where the cams are degreed. I think we would run pretty close. Of course he has a few pounds on me. One big difference is he is running 150's and now stepped up to 152.5 on his BS36 CV's. I'm running the same DJ kit but my mains are only 145 same BS36 CV's. Both have 1168, 4:1, Pods, Dyna, 0.340 web cams.

    I also attached a plot of the flow results that Terry provided. You can see the before (stock head) and after the porting job. There was well over a 20% increase in flow rate. The step up in the intake valve size can be seen at low lift, while the exhaust showed no impact. As the lift exceeds 0.150 you see the affect of the porting on both sides.

    Because of the rush to get to the Julian GSXR trip, there was alot of fiddling to get the carbs right (mostly self inflicted). As it turns out the carbs are very close to where Chef (Bill) set them in the first place and the bike runs great. I still need to readjust the valves , balance the carbs and tweak the idle mixture a little but it runs very nice despite lacking final tweaks. After getting back from Julian (when it was not jetted right), I have made a couple of trips up onto Camino Ceilo. This is basically a narrow mountain road of mostly turns at between 15-30 mphs with speeds seldom exceeding 50 mph. Not someplace you want an unpredictable throttle. The bike is very predictable even though it is a 4000 ft climb from sea level. Idles great, instant response and pulls very strong.

    (Camino Ceilo = Sky Road in Spanish)

    http://blog.seattlepi.com/velocity/archives/134879.asp

    Anyway wanted to let everybody know how well the head turned out and thank Terry for putting in the extra effort to make this a such a great head and how drivable the bike remains. Also thans to Chef for going all out to get my bike ready for the Julian trip. My ED has benefited much from just following his configuration.

    Jim










    Last edited by posplayr; 04-28-2009 at 01:00 AM.
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    "The smallest giant of mankind, is he who stands on the shoulders of a larger giant who himself stands on the shoulders of yet a larger giant, and therefore sees the most light from GOD." Posplayr 2017 adapted from : Bernard of Chartres


  10. #30
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    Cool

    Kudos to Terry!
    1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
    1985 GS1150ES stock with 85 Red E bodywork.


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