GT2-3 in a 6L?
09-09-2006, 09:06 AM
#21
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Originally Posted by 1SlowHoe
Done yet?
Sound clip?
HURRY UP!!!!!
DO YOU HAVE THE CAM CARD? I DIDNT GET ONE. JUST WONDERING WHAT THE OVERLAP WAS. Stupid caps lock.
Sound clip?
HURRY UP!!!!!
DO YOU HAVE THE CAM CARD? I DIDNT GET ONE. JUST WONDERING WHAT THE OVERLAP WAS. Stupid caps lock.
I didnt get a cam card either.
09-15-2006, 09:36 PM
#26
GT2-3 Camshaft Specifications
Camshaft: GT2-3
Engine type: GM Gen III & Gen IV V8 including LS1, LS6, LS2, LQ4, LQ9
Follower type: Hydraulic roller
Intake
Exhaust
Lobe lift:
0.336”
0.340”
Rocker ratio:
1.7:1
1.7:1
Valve lift
0.571”
0.578”
Duration at 0.050:
207°
220°
Advertised (total) duration:"
255°
281°
Lobe separation angle:
118.5
Centerline:
118.5
Recommended advance/retard:
0
Recommended valve springs:
Installed height:
Seat pressure:
Open pressure:
So how do I figure out overlap?
Camshaft: GT2-3
Engine type: GM Gen III & Gen IV V8 including LS1, LS6, LS2, LQ4, LQ9
Follower type: Hydraulic roller
Intake
Exhaust
Lobe lift:
0.336”
0.340”
Rocker ratio:
1.7:1
1.7:1
Valve lift
0.571”
0.578”
Duration at 0.050:
207°
220°
Advertised (total) duration:"
255°
281°
Lobe separation angle:
118.5
Centerline:
118.5
Recommended advance/retard:
0
Recommended valve springs:
Installed height:
Seat pressure:
Open pressure:
So how do I figure out overlap?
09-16-2006, 07:55 AM
#27
I found this on tech.
duration + duration /4 - LSA *2
soo....
205 + 220/4 :106.25-118.5: -12.25 * 2 = -24.5 degrees
ooohhh found this one. This will do it.
https://ls1tech.com/forums/showthrea...light=formulas
and that one shows -23.5, close enough to get your anwer.
duration + duration /4 - LSA *2
soo....
205 + 220/4 :106.25-118.5: -12.25 * 2 = -24.5 degrees
ooohhh found this one. This will do it.
https://ls1tech.com/forums/showthrea...light=formulas
and that one shows -23.5, close enough to get your anwer.
09-19-2006, 07:01 AM
#29
Launching!
Join Date: Apr 2006
Location: Grande Prairie, Alberta, Canada
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Everyone says this is such a good street cam. It almost sounds too good to be true. Hopefully someone can correct me.
I am wondering if you lose a little bit of power with it in non-boost situations. Like just cruising around below -3" Hg. Reason I am thinking this is now you lose cylinder effeicency because the overlap is completely gone. Once into boost however, I can see the lack in overlap being a very good thing.
I am no expert on cams, and untill a few posts ago didn't really think much about them. Is there something I am not thinking about and should just put it in and shut up?
Thanks.
I am wondering if you lose a little bit of power with it in non-boost situations. Like just cruising around below -3" Hg. Reason I am thinking this is now you lose cylinder effeicency because the overlap is completely gone. Once into boost however, I can see the lack in overlap being a very good thing.
I am no expert on cams, and untill a few posts ago didn't really think much about them. Is there something I am not thinking about and should just put it in and shut up?
Thanks.
09-19-2006, 07:19 AM
#30
TECH Veteran
I've driven a few trucks with that cam. Driving around normally you really can't tell the difference. Under heavy throttle there is just more power everywhere. The downside to it is that it idles smoother than stock.