Diff between 97+ SH and non SH pistons?
Joined: Sep 2005
Posts: 559
Likes: 0
From: Santa Cruz, CA, USA
Re: Diff between 97+ SH and non SH pistons? (98vtec)
The helms manual says the cam shafts are slightly different on the SH motor.
Base
Intake: Primary: 34.041
Mid: 36.856
Secondary: 34.971
Exhaust: Prim: 33.745
Mid: 36.323
Sec: 34.683
SH intake Prim:34.041
Mid: 37.229
Sec: 34.971
Exhaust Prim: 33.745
Mid: 36.704
Sec: 34.683
The valve springs have a slightly different measurement as well.. not sure why probably to offset the powerloss from the ATTS.
Base
Intake: Primary: 34.041
Mid: 36.856
Secondary: 34.971
Exhaust: Prim: 33.745
Mid: 36.323
Sec: 34.683
SH intake Prim:34.041
Mid: 37.229
Sec: 34.971
Exhaust Prim: 33.745
Mid: 36.704
Sec: 34.683
The valve springs have a slightly different measurement as well.. not sure why probably to offset the powerloss from the ATTS.
RTFM
Joined: Jun 2002
Posts: 7,267
Likes: 4
From: Conroe, TX
Re: Diff between 97+ SH and non SH pistons? (Chuckles99SH)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chuckles99SH »</TD></TR><TR><TD CLASS="quote">The helms manual says the cam shafts are slightly different on the SH motor.
Base
Intake: Primary: 34.041
Mid: 36.856
Secondary: 34.971
Exhaust: Prim: 33.745
Mid: 36.323
Sec: 34.683
SH intake Prim:34.041
Mid: 37.229
Sec: 34.971
Exhaust Prim: 33.745
Mid: 36.704
Sec: 34.683
The valve springs have a slightly different measurement as well.. not sure why probably to offset the powerloss from the ATTS.
</TD></TR></TABLE>
go to honda and ask them to look up part numbers for sh and base model cams.........
Base
Intake: Primary: 34.041
Mid: 36.856
Secondary: 34.971
Exhaust: Prim: 33.745
Mid: 36.323
Sec: 34.683
SH intake Prim:34.041
Mid: 37.229
Sec: 34.971
Exhaust Prim: 33.745
Mid: 36.704
Sec: 34.683
The valve springs have a slightly different measurement as well.. not sure why probably to offset the powerloss from the ATTS.
</TD></TR></TABLE>go to honda and ask them to look up part numbers for sh and base model cams.........
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kotetu
Honda Prelude
10
Dec 1, 2002 01:32 PM
