in a ls vtec.. would you guys rather have b16a2 pistons or R pistons???
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in a ls vtec.. would you guys rather have b16a2 pistons or R pistons???
like topic says. R pistons or b16a2 pistons...
ummm if this info helps.. itr cams... itr head
or maybe just itr cams port polished b16a2 head
ummm if this info helps.. itr cams... itr head
or maybe just itr cams port polished b16a2 head
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From: Suck it Trebek
Re: in a ls vtec.. would you guys rather have b16a2 pistons or R pistons??? (AzN_Flava)
with a b16a head and p30 pistons you can get into the 11.5 range with stock head and head gasket. thats pretty good for the street. ctr pistons require shaving the rods a bit while p30's drop in
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From: Southern cali or boston
Re: in a ls vtec.. would you guys rather have b16a2 pistons or R pistons??? (JCushing)
C/R (Compression Ratio) for the LS/VTEC
(B16a head on B18a/b block w/stock b18b rods) motor:
9.6:1 - P74 LS Pistons
10.0:1 - P72 GSR Pistons
10.8:1 - P73 US ITR Pistons
11.0:1 - P73 JDM ITR Pistons
11.5:1 - PR3 Pistons (1st Gen B16a)
11.7:1 - P30 Pistons (2nd Gen B16a)
12.4:1 - CTR Pistons
11.5:1 C/R is the "Safe" or target on 91+ oct street
pump gas.
So PR3 would actually be best.
(B16a head on B18a/b block w/stock b18b rods) motor:
9.6:1 - P74 LS Pistons
10.0:1 - P72 GSR Pistons
10.8:1 - P73 US ITR Pistons
11.0:1 - P73 JDM ITR Pistons
11.5:1 - PR3 Pistons (1st Gen B16a)
11.7:1 - P30 Pistons (2nd Gen B16a)
12.4:1 - CTR Pistons
11.5:1 C/R is the "Safe" or target on 91+ oct street
pump gas.
So PR3 would actually be best.
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