7500RPM What do i need to make it live?
10-24-2010, 01:37 PM
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7500RPM What do i need to make it live? Hey guys i'm looking for the supporting mods to bullet proof my high revving combination on my stroker. The motor is fully forged an ready for business. This is the break down of the motor an the parts already installed.
LME LQ9 408 11:5:1 COMP
APR ROD & MAIN BOLTS & HEAD BOLTS
TSP CUSTOM GRIND CAMSHAFT
TSP LS3 HEADS MILLED 68CC
TSP CROMOLY PUSH RODS
660 LIFT SPRINGS
LS7 LIFTERS
TSP LS6 PORTED OIL PUMP
TSP DOUBLE ROLLER TIMING CHAIN
L76 INTAKE MANIFOLD
TSP 92MM TB PORTED
When the motor was built 2 years ago the after market off set rockers weren't on the market yet or so i was told so i figured the stock SET-UP would be fine until i reached this point of no return an looking to rev higher to make more power, but i'm looking looking for anything else that is missing from the equation that would equal a happy free revving stroker without any reason for it to not like that RPM with a vic jr intake and a 4150 TB. I was thinking about a better oiling system an some yella terra ultra lite rockers along with a miezere electric water pump. Anything you guys can suggest to complete this would be wonderful why or why not this or that.
Thanks Dustin.
LME LQ9 408 11:5:1 COMP
APR ROD & MAIN BOLTS & HEAD BOLTS
TSP CUSTOM GRIND CAMSHAFT
TSP LS3 HEADS MILLED 68CC
TSP CROMOLY PUSH RODS
660 LIFT SPRINGS
LS7 LIFTERS
TSP LS6 PORTED OIL PUMP
TSP DOUBLE ROLLER TIMING CHAIN
L76 INTAKE MANIFOLD
TSP 92MM TB PORTED
When the motor was built 2 years ago the after market off set rockers weren't on the market yet or so i was told so i figured the stock SET-UP would be fine until i reached this point of no return an looking to rev higher to make more power, but i'm looking looking for anything else that is missing from the equation that would equal a happy free revving stroker without any reason for it to not like that RPM with a vic jr intake and a 4150 TB. I was thinking about a better oiling system an some yella terra ultra lite rockers along with a miezere electric water pump. Anything you guys can suggest to complete this would be wonderful why or why not this or that.
Thanks Dustin.
10-24-2010, 05:01 PM
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I would certainly look to some different Lifters. While the LS7's are a good lifter, when revving that high, I would want the piece of mind of a high quality Link-bar Lifter.
10-25-2010, 01:04 AM
#5
You would need Morel lifters (not the street version, but the high-rpm version), 3/8" or 11/32" pushrods, Jesel rockers, and a stiff valve spring (maybe AFR's #8019 or Patriot's extreme).
10-25-2010, 10:02 AM
#7
The shortblock will take it esp if LME did it.
For the top end ask Bryan at LME, he will know but i would start thinking about solid lifter, and a different intake for sure!
For the top end ask Bryan at LME, he will know but i would start thinking about solid lifter, and a different intake for sure!
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10-25-2010, 10:15 AM
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+1 on the intake.
I dont understand this. Are you ditching the L76 intake or not?
I dont understand this. Are you ditching the L76 intake or not?
10-25-2010, 11:08 AM
#9
Big cam, solid roller, big intake, dry sump if you're getting serious and a good builder. Ls6 oil pumps aren't happy above 7400 rpm if I remember right. SAM got over 9000 rpm outta their 434 so I don't see why it isn't possible. You might get a lot of 'why?' answers though
10-26-2010, 10:16 AM
#10
Big cam, solid roller, big intake, dry sump if you're getting serious and a good builder. Ls6 oil pumps aren't happy above 7400 rpm if I remember right. SAM got over 9000 rpm outta their 434 so I don't see why it isn't possible. You might get a lot of 'why?' answers though
So are you saying SAM used the LS6 pump or...?
10-26-2010, 10:32 AM
#11
You will need a GOOD valve spring, patriots are junk for high rpm, I had them, and I had valves hit pistons @ 7500.... You need LIGHT valves, good springs like pac's shimming is critical, you can run hydraulic roller no problem, pushrod length is critical, there are tons of people who do it...and more....
10-26-2010, 06:22 PM
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You will need a GOOD valve spring, patriots are junk for high rpm, I had them, and I had valves hit pistons @ 7500.... You need LIGHT valves, good springs like pac's shimming is critical, you can run hydraulic roller no problem, pushrod length is critical, there are tons of people who do it...and more....
OP: Why 7500 with an LS3 intake manifold? If you want to make power up in that area you need to look at shorter runners. Unfortunately not much is available that doesn't need a lot of work.
Jon
10-27-2010, 10:12 AM
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Yeah thats what alot of people have said... This is the dyno video from the camshaft texas-speed ground for me with a single plane revving to 7600...
http://www.youtube.com/watch?v=8ti1zTgln2U
http://www.youtube.com/watch?v=8ti1zTgln2U
10-27-2010, 10:16 AM
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The ******** couldn't hear a thing over my exhaust, but this video can kinda show you how the car pulls an it seems like it's staving for upper RPMs with the L76 manifold. I also have the hollow stem titanium valves to keep the weight down on them so i could rev where the cam makes most of it's power at. What rockers, oil pump an lifters to do? http://www.youtube.com/watch?v=LARsdGrQLxU
10-28-2010, 02:54 PM
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The Morel link bar lifters would be a good choice, Jessel shaft rockers, maybe a vacuum pump. A ported GM oil pump for a LS6 ? You should run Cary's manifold if he has one for the 92 heads.
10-29-2010, 10:46 AM
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10-29-2010, 10:48 AM
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I have the ported Ls6 Tsp Pump right now just wondered if with revving that high would i need more oiling? I'm getting a electric water pump from miezere soon to.