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Type S pistions needed

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TheHondaTuner
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Type S pistions needed

Post by TheHondaTuner » Fri Apr 12, 2019 3:40 pm

I figured out the best puzzle in my situation would be type S pistion H23 rods. So iam looking for a set of used S pistions.
Hopefully someone has them laying arround for an affordable price.
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Type S pistions needed

Post by Drax » Fri Apr 12, 2019 6:26 pm

You can also use a8 or atr pistons :)
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Type S pistions needed

Post by TheHondaTuner » Fri Apr 12, 2019 6:33 pm

yep, i will take any of those if offered ^^ hopefully soon. want the car to be running at the end of the month
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Type S pistions needed

Post by 4thgenphil » Sat Apr 13, 2019 6:31 pm

What size pistons do you need?

Also have you had a good read up on putting atr/type s pistons on h23 rods? The comp ratio is massive and have blow ring lands over in the states even in n/a builds. Also piston speed and rod angle is fairly high.
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TheHondaTuner
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Type S pistions needed

Post by TheHondaTuner » Sun Apr 14, 2019 3:20 am

Standart Size.
I was after a 12+:1 ratio anyway. I really enjoy high comp engines. Iam not sure if i rather run used oem ring or these cheap NRP from htune. Didnt read about broken rings yet. If i use H22 rod+pistion its 12,8:1 wich need headwork. (friend has CNC machine) But would be an alternative if i dont find S pistions.
I run 103 octane. But yeah 12,8 is really much. it will go a little lower with headwork and larger piston/valve "bags" (is that the proper word?) Ive heard that the upper rod bearing on H23 is bad and i rather should use the h22 rods. what i still dont know is if the H23 crank is same quality balanced as the H22.
Thanks for any advice
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Type S pistions needed

Post by Drax » Sun Apr 14, 2019 9:31 am

Google the h22 compression calculator and that should tell you what build variations will give what compression.

My Frankenstein build uses an f22 crank & rods and standard 4g import 10:6:1 h22 pistons and I should get 12:1 compression, plus I'm using those nrp rings
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