TRX250R.ORG
Workshop => Engine and Bottom End => Topic started by: hickwheeler on February 06, 2018, 02:50:31 PM
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I picked up what the original owner is calling a ESR 370 kit. But what is wierd is. It is a 77mm bore. So it is a 330 pro x cylinder set up for 77 mil stroke. Would be a 369 on it's last bore. I did some searching online. Found one guy back in the day selling a 370 that was on 77mm bore. So just wondering if this is how they originally did what they considered a 370. Im good with what I got and what I got it for. Just trying to figure this out for my piece of mind.
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Well looked through some old dirt wheels tonight. Found info to support that they used this size cylinder and called it a 370. CT racing used a 77.5 stroker crank with 76mm piston for their 370 kit. Interesting to be able to find the info
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it is interesting that the info was in dirtwheels.
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Ya I found were they did the kit. So it had the info on what the kit consisted of.
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how old is this. I bought my esr complete 370 kit 5-6 years ago. still have not used it
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Early 2000's
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From when he was using pro x cylinders
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how old is this. I bought my esr complete 370 kit 5-6 years ago. still have not used it
you need to use that. Probably going to get guys hitting you up for it now
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how old is this. I bought my esr complete 370 kit 5-6 years ago. still have not used it
you need to use that. Probably going to get guys hitting you up for it now
I was thinking...Maybe he wants to sell it! LOL
......So, Do you want to sell it?!
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I've had my pro-x 350PV cylinder which is at 77.5 with a 77.5 stroker crank for 2 seasons of racing...Heading into this one with a hone and new rings....I'm very happy with the power output...