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17-03-2014 06:21 PM
#1237
Wondering knowledgeable peoples top 3 picks for b20vtec (b20b8, standard bore, b16 head, cams/springs etc) for pistons and rods, any I can buy locally or better off getting elsewhere, cheers
Wakefield Park PB: 1.15.6
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18-03-2014 07:42 AM
#1238
Dave send me a PM and we can talk about a few things
Kermit EGK20A
Winton: 1:35.08
Wakefield: 1:08.8
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18-03-2014 10:01 PM
#1239
Originally Posted by stndrd
Dave send me a PM and we can talk about a few things
You sound really desperate.
Not selling enough PLM and penrite?
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09-04-2014 09:57 AM
#1240
Hey guys,
just after information/experiences/thoughts on using this piston/rod combo on my b20vtec, are the JE pistons decent?
What other pistons (looking at 84.5mm) do you recommend, with about a 11.5.1 compression ratio
Wakefield Park PB: 1.15.6
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09-04-2014 10:07 AM
#1241
yeah, stick with quality US parts and you cant go wrong, 84.5 is good, 11.5 is OK, but 12.5 is better,
but you must match your cams, head porting and CR to get the best outcome.
the quality of machinist you use is also very important to the end result.
like has been said ad nauseam through out this threa...
Last edited by tinkerbell; 09-04-2014 at 10:11 AM.
B20VTEC - since 2002
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09-04-2014 11:00 AM
#1242
yeah, I was just thiking 12.5 might be a little extreme for a daily
who is the general go to guy for b20vtec machining and the like
Wakefield Park PB: 1.15.6
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09-04-2014 12:05 PM
#1243
12.5:1 = free power.
as long as you can get 98 octane, have a very good engine tuner and support package (like good injectors, fuel pump(s), ignition system, ECU, etc) you'll be fine.
my engine tuner organised my machining, so i cant say...
B20VTEC - since 2002
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09-04-2014 01:16 PM
#1244
Running 12.7 on 98.
Daily driver. 1.8 though
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09-04-2014 03:22 PM
#1245
True. I'll look into it, I don't want to have to upgrade too much
Wakefield Park PB: 1.15.6
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10-04-2014 06:05 AM
#1246
bigger bore/stroke also means that you need less of a dome to achieve the same c/r compared to a b18 or even more b16. huge wedges all up in the chamber can mess with cylinder filling and flame propagation. now im not saying more c/r is bad, or that huge wedges make things worse just its good to know what affect changing something has. much like something that helps the engine breath at high rpm, can hurt it down low... the beauty of c/r is its effect on performance is not rpm dependent, unlike alot of engine components.
if you dont want to spend too much, rs machines are hugely popular cast pistons. and you can get close to 12:1 with a p72 head and some head and block milling. half the price of forgies and give you a nice bump in comp whilst keeping it safe for the street.
are you getting cams?
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10-04-2014 01:55 PM
#1247
yeah I was looking into the rs machines too
im thinking of kelfords, but not sure, eventually I do want cams, yes
Wakefield Park PB: 1.15.6
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09-05-2014 11:26 AM
#1248
Originally Posted by .Dave
yeah I was looking into the rs machines too
im thinking of kelfords, but not sure, eventually I do want cams, yes
Stay away from Kelford Cams, I was originally looking to use them but found the support and delivery times as slack.
I went with Toda C2 for my build and got very good results.
Cheers
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