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Post by Walms on Nov 19, 2014 6:31:52 GMT -5
I'm not sure if your analogy works here RT... I for one wouldn't buzz the crap out of a cast piston on a regular basis! For the record, I don't have Wiseco or Worsener stickers on my bike either!
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Post by midnightlamp on Nov 19, 2014 11:30:04 GMT -5
At the same time though, Walms, wouldn't a nice cast piston with a good squish band and good jetting give you a fairly solid setup that doesn't have to have much slop or thermal seizure issues? Versus spending the money on getting a set of forged slugs in there and keeping mostly everything else stock.
As for the ruggedness, those kettle guys really do go hard on their pistons and these seem to last. I know in the case of four strokes, the risk of detonation and minor detonation is nowhere near the same so the honda bigbore comparison is not great...but as far as two strokes, I can't imagine this being worse than OEM? Going on what RT said, I'm inclined to try at the small cost that there is for this, but was hoping someone else had some reports on them like roadrash did, but for H1's.
Also kawonda, you're assuming I'm paying for the rest of the work and not doing it myself...!
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Post by Walms on Nov 19, 2014 12:10:57 GMT -5
Yup, cast is more stable dimensionally for sure but also not as strong as forged. I have a reeded motor with slots machined in the piston so I wouldn't even contemplate a cast piston. My mustang was taken off the road due to cracked piston skirts... Same idea there, I'm sure they would still be working today if it wasn't for 6.5k shifts on my drive to work every day! If you think you might not hit or go past the redline often, maybe cast pistons are good for you. Just be certain to ask the person who is an advocate of the these things if they buzz their motor on a regular basis first. Not all tripler's Ride'm like they stole'm!
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Post by Walms on Nov 19, 2014 12:14:19 GMT -5
Ask the kettle guys how high they rev their bikes btw, I'm under the impression it might be pretty low compared to a triple???
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Post by midnightlamp on Nov 19, 2014 12:20:53 GMT -5
Bout 7500 on a stockish motor if you're hooning? Most of the guys I know who kettle, do so aggressively, but also end up with countless blown motors and an inability to remove the blocks from the crankcases reasonably!
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Post by Walms on Nov 19, 2014 12:45:14 GMT -5
7.5k limit is quite a bit lower than the potential of a H1 though... I'd consider a set as well if I never reved past that point... The problem is, with my current pipes hitting at 7k, I spend as much time above that rpm as I do below.
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Post by zambia on Nov 19, 2014 12:48:28 GMT -5
The stock slugs were considered to be very good. I know nothing about metal, but I read that they had an abnormally high silicon content and a good casting technique which increased durability.
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Post by kawonda750 on Nov 19, 2014 13:53:03 GMT -5
If you are going to juice up your engine with squish band alterations and pipes etc, then cheaping out on the pistons is a false economy. Just sayin' This statement had nothing to do with whether you are doing the work yourself or paying someone else to do it. if you are increasing the performance of an engine and thus likely flogging it more , it would seem that the main part of the engine such as the pistons should be the best possible.
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roadrash
2nd Gear
10 McNab St.E. Port Dover
Posts: 272
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Post by roadrash on Nov 20, 2014 10:57:28 GMT -5
Cheep is cool,you can ask my wife!
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Post by midnightlamp on Nov 20, 2014 11:10:31 GMT -5
None of those bits are meant for me for directly increasing performance. I have a mill with PCBN tooling so can deck heads and have done squish band recutting before (but on a lathe for smaller heads). Between that, the needles, etc... I'd be looking at reducing detonation and getting more even jetting through the lower/midrange. I just want a decently piped triple to occasionally play on but mainly just drive. I ended up getting a response that the pistons are nearly identical to stock deck height are have nearly the same crown shape, so I think I'll guinea pig a set for spares.
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Post by lc on Nov 20, 2014 12:13:38 GMT -5
Have a look in the Kaw UK boards. I believe some are using the cast pistons referred.
J
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Post by H2 Dude on Nov 20, 2014 13:17:21 GMT -5
Criuze does have some good products and I have bought them for the GT's. Some GT guys do like the pistons But me..I opted to but Suzuki ones instead.
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Post by tankie on Nov 21, 2014 10:01:14 GMT -5
I am using these pistons in both myH1 and H2 and I have no issue with them....nuff said !
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Post by Walms on Nov 21, 2014 10:25:37 GMT -5
Almost enough said... I know it's a personal question but do you flog the crap out of your bikes on a regular basis?
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Post by tankie on Nov 21, 2014 11:27:27 GMT -5
I just knew that Question was going to come up, if you read the UK forums I've already done this conversation numerous times, yes I am a rider and not a polisher Oh and i'm now off down the pub, so no more talking for a few hours...bye
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