6.0 L92 Headed cam choice...
08-09-2006, 07:08 PM
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6.0 L92 Headed cam choice... i just paid for my LQ9 shortblock and im planning on L92's for it. now, what would kill down low with those massive intake/exhaust runners and huge intake valves? im also wondering how the charecteristics of the intake runners will effect the cam specs chosen?
08-09-2006, 07:42 PM
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It is hard to choose a cam for a set of heads and intake that really haven't had any testing. It is a trial and error game. What size motor, compression, vehicle, transmission, stall will all be factors also.
08-09-2006, 07:53 PM
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Originally Posted by strokedls1
It is hard to choose a cam for a set of heads and intake that really haven't had any testing. It is a trial and error game. What size motor, compression, vehicle, transmission, stall will all be factors also.
08-10-2006, 01:57 PM
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Originally Posted by PREDATOR-Z
A high lift ( LSK) 242/248 on a 110, something along that range.
08-10-2006, 05:54 PM
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Originally Posted by Wnts2Go10O
i was almost thinking some sort of split would be a the thing to do because of how big the int valve is
Ben T.
08-10-2006, 11:34 PM
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Originally Posted by Studytime
A traditional slit? Good thinking. All of the L92 intakes should flow very well. L92 exhaust ports could use better flow though, and if you're running a 1.75" primary you might benefit from opening the exhaust sooner.
Ben T.
Ben T.
well hell, how do the LS7's and C5R's react? it would be safe to assume these will react similarly to those.
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08-11-2006, 12:24 AM
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Originally Posted by PREDATOR-Z
A high lift ( LSK) 242/248 on a 110, something along that range.
Maybe try milling those heads .030" or so to get compression up. You would probably have to flycut with whatever cam you choose though with as big as those friggin valves are. I haven't measured valve drop on an L-92 head though to know for sure.
Nate
08-11-2006, 02:33 AM
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Originally Posted by Nate_Taufer
I would go a few degrees less because it's still only 364 cid and it will be hard to get compression up with a stock piston and 70cc chamber. Plus if you want down low power you don't want to go too big. Probably a 232/240 on a 110 lsa. would work nicely with your setup.
Maybe try milling those heads .030" or so to get compression up. You would probably have to flycut with whatever cam you choose though with as big as those friggin valves are. I haven't measured valve drop on an L-92 head though to know for sure.
Nate
Maybe try milling those heads .030" or so to get compression up. You would probably have to flycut with whatever cam you choose though with as big as those friggin valves are. I haven't measured valve drop on an L-92 head though to know for sure.
Nate
08-11-2006, 05:38 AM
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Why not give the whole setup picture from begining?
If you are going FI then those big runners and valves will be counter productive,
What you should go after is velocity.
Then you'll need a nice 6* split intake/ exhaust (exhaust biased VE's, with moderate overlap)
If you are going FI then those big runners and valves will be counter productive,
What you should go after is velocity.
Then you'll need a nice 6* split intake/ exhaust (exhaust biased VE's, with moderate overlap)
Last edited by PREDATOR-Z; 08-11-2006 at 05:47 AM.
08-11-2006, 01:36 PM
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Originally Posted by PREDATOR-Z
Why not give the whole setup picture from begining?
If you are going FI then those big runners and valves will be counter productive,
What you should go after is velocity.
Then you'll need a nice 6* split intake/ exhaust (exhaust biased VE's, with moderate overlap)
If you are going FI then those big runners and valves will be counter productive,
What you should go after is velocity.
Then you'll need a nice 6* split intake/ exhaust (exhaust biased VE's, with moderate overlap)
08-14-2006, 09:09 PM
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Originally Posted by TJ
has anyone bolted l92's on with that big of a cam on stock pistons?
these heads look to be the budget ticket if all is well in valve and piston country.
these heads look to be the budget ticket if all is well in valve and piston country.
