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Anyone interested in a gsr60 kit?

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  • Anyone interested in a gsr60 kit?

    Just testing the water for interest on this. I may have something really cool in the works. Is anyone else making adapter kits right now? Not entire cases, I’m talking adapter kits for the stock case.

    *******Pedding since '02********

  • #2
    I wouldn't mind having another 60s any pic of the kit

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    • #3
      I'm all good on 60 kits, but maybe the fb guys would be interested. Although, with the Chinese 63 being out now I feel like demand for zen 60 kits is much lower. Honestly it seems like porting a Chinese 63 is better bang for the buck, especially since a zen 60 still needs porting in order to get it to go. I

      recommend checking interest on fb though. You could probably find 5 other people who would be interested. More than 5 though? imo that's a tough sell, goped people are cheap, and Im guessing a kit would be 300-500 usd.
      Instagram: @base_cat

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      • #4
        Yah I've own one of those 63 motor and I would say they are not worth the time to play.ill stick with my zen 60s sorry to say even for the price ill go with a 460 than those 63 even with those 460 parts on with a reeded 63 motor ...not very impressive with the speed

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        • #5
          Originally posted by Badazzx22 View Post
          Yah I've own one of those 63 motor and I would say they are not worth the time to play.ill stick with my zen 60s sorry to say even for the price ill go with a 460 than those 63 even with those 460 parts on with a reeded 63 motor ...not very impressive with the speed
          who built your 63 out of curiosity?
          Instagram: @base_cat

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          • #6
            Harley

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            • #7
              Yah I think I msg u before asking if u want those part for the motor u are building I like the way u build ur 60s so thays why I asked if u want those part for the 63 motor

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              • #8
                I'm still curious on the 63cc engine performance, but I can't find any good videos to demonstrate top speed or acceleration. If you guys know of any please share.
                2 Sports and a GSR40

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                • #9
                  Funny how you mention the good ol’ zen 60 and the OG guys start coming out of the woodwork

                  I’m planning on doing a limited production run. It’s a straight bolt on similar to tetra or TS but different. I’ve combined what I found to work best.

                  Basement Cat, the stock zen 60 I used with this kit actually pulled pretty well. compared it back to back with my TS and it’s night and day. My tach decided to die so I couldn’t checked peak rpm but it did 50mph out of the box geared 9/72 on Pb wheels with 180lb rider. And torque for days. The TS topped out at about 46 and much less low end, this can also be attributed to pipe. But I will say there will be a decent pipe readily available. I’ve been experimenting a lot, I think people are really gonna like this kit. Just need to tweak some dims. and I’ll have my v2 FAI soon.
                  *******Pedding since '02********

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                  • #10
                    Is your kit going to have the intake be rear or front facing? Rear facing is the way to go since it maintains the proper direction for crank rotation. ALL of the 60 adapter kits make the engine spin the wrong way which reduces te scavenging efficiency, and ultimately the power output. If you make it rear facing that might interest more people since it would make the kit stand out, but in the other hand, getting pipes would have to be a custom job since there wouldn't be any off the shelf options.

                    tbh I'm surprised you got those numbers with a 60. Usually the max rpm is much lower out of the box, so that's pretty neat! Were you running a pipe?
                    Instagram: @base_cat

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                    • #11
                      Originally posted by Badazzx22 View Post
                      Yah I think I msg u before asking if u want those part for the motor u are building I like the way u build ur 60s so thays why I asked if u want those part for the 63 motor
                      makes sense, thanks again man!

                      I still haven't figured out if the 63 is worth it or not. It does seem like it needs a LOT of work to make it move, and more work means more money spent. I'm not sure that it is worth it to blow a few hundred on some chinese engine too. Personally, I hate that out of the gate you have to get some special whatever bullshit engine setup because not all of the chinese 63s are the same. That screams red flag to me personally. I'm still working on mine though. Maybe Ill end up changing my mind. For sure I would never spend zenoah 60 money on one of these though.
                      Instagram: @base_cat

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                      • #12
                        Originally posted by Basement Cat View Post
                        Is your kit going to have the intake be rear or front facing? Rear facing is the way to go since it maintains the proper direction for crank rotation. ALL of the 60 adapter kits make the engine spin the wrong way which reduces te scavenging efficiency, and ultimately the power output. If you make it rear facing that might interest more people since it would make the kit stand out, but in the other hand, getting pipes would have to be a custom job since there wouldn't be any off the shelf options.

                        tbh I'm surprised you got those numbers with a 60. Usually the max rpm is much lower out of the box, so that's pretty neat! Were you running a pipe?
                        Making me give away all the secrets! I was surprised too (yes, pipes on both) My idea was to go straight into porting but decided to get a baseline first, now I may just leave it alone. It’s certainly still a low to mid motor but that actually may be ideal since we are all running single speeds. And it still gives people the options unlock more rpm by raising the exhaust port 5 degrees. Or cutting a 7 degree notch in the roof of the port. I wouldn’t worry about the intake as it’s already 3 degrees lower than the 460 with more duration. But I digress, because the power is currently so usable there isn’t a real need to change it. I need to tie up the details, so I actually get this kit finished, tryin to release a super low cost throttle linkage option as well.
                        Last edited by dsport; 06-18-2020, 10:02 AM.
                        *******Pedding since '02********

                        Comment


                        • #13
                          Are you sure that the 60 has more intake duration? I've measured a few 60s, and they are about 5 degrees shorter in duration than a GP460. The exhaust timings are almost exactly the same. It makes sense to me that the 60 would have lower intake open duration since the port has a larger area, and thus blowback becomes a greater problem. Also it was designed for lower RPM.

                          When I looked back on my notes, apparently I didn't do much at all to the port timings on my 60 (a variance of 1-3 degrees vs. stock for intake and exhaust), and I hit 49 mph (13500ish RPMs) with lower gearing (8/72) for the same rider weight. So I guess that it makes sense that 60s have good baselines.

                          It's so strange because many people do call them slow out of the box, but now I'm thinking that the people who say that simply don't understand how to set these up correctly. The whole reversing the rotation thing is definitely a performance KILLER though. I picked up a few mph just by correcting for that on my Skopod kit...
                          Instagram: @base_cat

                          Comment


                          • #14
                            Originally posted by Basement Cat View Post
                            Are you sure that the 60 has more intake duration? I've measured a few 60s, and they are about 5 degrees shorter in duration than a GP460. The exhaust timings are almost exactly the same. It makes sense to me that the 60 would have lower intake open duration since the port has a larger area, and thus blowback becomes a greater problem. Also it was designed for lower RPM.

                            When I looked back on my notes, apparently I didn't do much at all to the port timings on my 60 (a variance of 1-3 degrees vs. stock for intake and exhaust), and I hit 49 mph (13500ish RPMs) with lower gearing (8/72) for the same rider weight. So I guess that it makes sense that 60s have good baselines.

                            It's so strange because many people do call them slow out of the box, but now I'm thinking that the people who say that simply don't understand how to set these up correctly. The whole reversing the rotation thing is definitely a performance KILLER though. I picked up a few mph just by correcting for that on my Skopod kit...
                            I picked up a 460 long block a couple weeks ago for measurement purposes. Intake duration I measured is 156*, intake closed at 74* after TDC. 60 duration was 155* intake Closed 77* after TDC. Made me think the exhaust has a lot more to do with rpm gain than the intake. The 460 has a 7* notch cut in the roof of the exhaust. There’s your rpm gainer right there. b/c you are correct, the roof of exhaust ports on the 60 and 460 at similar otherwise. Also the transfers which open ~7* earlier on the 460.

                            This 60 feels like a Goped should. My reed 46 by contrast is loud as hell, and has me pushing up hills. My TS 60 I recently sold to another member on here, it gets the job done, but imo would benefit from porting to unlock more potential. These are just my experiences. I’ve also never owned a CR60, I’ve been ready to pull the trigger on one a few times but $900 is difficult to justify (for me). It’s bad ***. And fast as hell, but not economical. If you are buying a new 60, people should have the option to use what they purchased. Not be forced throw their new case/bearings/seals/carb/gaskets in the spare parts bin, and cut up their new cylinder/piston just to have a zen 60.
                            Last edited by dsport; 06-18-2020, 12:06 PM.
                            *******Pedding since '02********

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                            • #15
                              So then the 60 does have slightly less intake duration.

                              I doubt the notch is the RPM gainer to be honest. Usually notches like that are used to modulate the exhaust sound from what I have read. The area is so tiny that I wouldn't expect it to improve high RPM performance significantly.

                              I would measure the time-areas of the 460 and 60, then look at the time-area:cc ratio to see how they compare. The answer might be in there somewhere. Also keep in mind that if you were to take a rub of the port, the depicted area is not right, since it is a 2d projection of a curved surface, so the actual cross section is smaller.
                              Instagram: @base_cat

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