I was just looking at this in the Helms a couple days ago, I remember in the section "inspecting cams" it has tables that give the measurement from one side of the cam to the point on the lobe on the other side. I don't think that's actually the same measurement as would be for lift (if you mean how far the lobe moves the valve).
cam durations
Does anyone know the duration of lift (degrees) for the intake and exhaust cams on an H22a1?
edit -- I do have my Helms right here. Maybe I'm just not looking in the right place, but I can't seem to find it. Anyone happen to know off hand?
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[tHåt©hMå§të®]
95 VTEC Prelude - RS*R, powerslots, Axxis metal masters, Toyo FZ4s, **type-S intake (thanks Andy!!)** 15.040 @ 92.85
95 VTEC Del Sol - AEM, Bullfrog TB, N2 header, Greddy SP, Powerstop Xdrilled, Z3 fenders
www.thatchland.com
[This message has been edited by thatchmaster (edited April 02, 2001).]
edit -- I do have my Helms right here. Maybe I'm just not looking in the right place, but I can't seem to find it. Anyone happen to know off hand?
------------------
[tHåt©hMå§të®]
95 VTEC Prelude - RS*R, powerslots, Axxis metal masters, Toyo FZ4s, **type-S intake (thanks Andy!!)** 15.040 @ 92.85
95 VTEC Del Sol - AEM, Bullfrog TB, N2 header, Greddy SP, Powerstop Xdrilled, Z3 fenders
www.thatchland.com
[This message has been edited by thatchmaster (edited April 02, 2001).]
1 - 7 of 7 Posts
Ok.. I got back to reading in here (Helms), reading that little low/high speed valve timing chart (for anyone w/ their helms it's on page 5-10)... so I'm kinda thinking out loud here.
lobe A = primary
lobe B = mid (vtec lobe)
lobe C = secondary
Low speed valve timing:
Intake:
A = 185
C = 180
Exhaust:
A = 190
C = 185
There's a 45 overlap btwn A INclose and A EXopen, and a 40 overlap btwn C INclose and C EXopen.
High speed valve timing:
Intake:
B = 235
Exhaust:
B = 235
There's a 80 overlap btwn B INclose and B EXopen, and a 30 overlap btwn B EXclose and B INopen.
I think in typing this, I answered my own question.. but for anyone else who wants the info, there it is for you.
-Erik
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[tHåt©hMå§të®]
95 VTEC Prelude - RS*R, powerslots, Axxis metal masters, Toyo FZ4s, **type-S intake (thanks Andy!!)** 15.040 @ 92.85
95 VTEC Del Sol - AEM, Bullfrog TB, N2 header, Greddy SP, Powerstop Xdrilled, Z3 fenders
www.thatchland.com
[This message has been edited by thatchmaster (edited April 02, 2001).]
lobe A = primary
lobe B = mid (vtec lobe)
lobe C = secondary
Low speed valve timing:
Intake:
A = 185
C = 180
Exhaust:
A = 190
C = 185
There's a 45 overlap btwn A INclose and A EXopen, and a 40 overlap btwn C INclose and C EXopen.
High speed valve timing:
Intake:
B = 235
Exhaust:
B = 235
There's a 80 overlap btwn B INclose and B EXopen, and a 30 overlap btwn B EXclose and B INopen.
I think in typing this, I answered my own question.. but for anyone else who wants the info, there it is for you.
-Erik
------------------
[tHåt©hMå§të®]
95 VTEC Prelude - RS*R, powerslots, Axxis metal masters, Toyo FZ4s, **type-S intake (thanks Andy!!)** 15.040 @ 92.85
95 VTEC Del Sol - AEM, Bullfrog TB, N2 header, Greddy SP, Powerstop Xdrilled, Z3 fenders
www.thatchland.com
[This message has been edited by thatchmaster (edited April 02, 2001).]
well.. I guess no one really cared then
![]()
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[tHåt©hMå§të®]
95 VTEC Prelude - RS*R, powerslots, Axxis metal masters, Toyo FZ4s, **type-S intake (thanks Andy!!)** 15.040 @ 92.85
95 VTEC Del Sol - AEM, Bullfrog TB, N2 header, Greddy SP, Powerstop Xdrilled, Z3 fenders
www.thatchland.com
------------------
[tHåt©hMå§të®]
95 VTEC Prelude - RS*R, powerslots, Axxis metal masters, Toyo FZ4s, **type-S intake (thanks Andy!!)** 15.040 @ 92.85
95 VTEC Del Sol - AEM, Bullfrog TB, N2 header, Greddy SP, Powerstop Xdrilled, Z3 fenders
www.thatchland.com
I care.
But i wish i had the info for the H23 cams.
That would help me out.
anyone?
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BRacing
"Going faster since 1994"
"Drag racing is for those that can't steer"
But i wish i had the info for the H23 cams.
That would help me out.
anyone?
------------------
BRacing
"Going faster since 1994"
"Drag racing is for those that can't steer"
its late and i'm tired...so i'm not sure all of what you typed...but crower has info on their site...
http://www.crower.com/g2
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1994 Black Prelude 2.3L DOHC 5-speed
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http://www.crower.com/g2
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1994 Black Prelude 2.3L DOHC 5-speed
Stock Specs from H22 Type SH Int-275 mid Exh-275 mid Int-225 mid Exh-227 mid Int-.448 mid Exh-.415 mid
Stock Specs from H22 JDM-spec Int-271 mid Exh-277 mid Int-224 mid Exh-224 mid Int-.446 mid Exh-.415 mid
Stock Specs from H22 JDM-spec Int-271 mid Exh-277 mid Int-224 mid Exh-224 mid Int-.446 mid Exh-.415 mid
1 - 7 of 7 Posts
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