Cam recommendation for Trickflow 255 heads
Cam recommendation for Trickflow 255 heads I have an LS3 swapped into my 01 Z28. Currently running the Trickflow 255s along with the LS3 Cammotion Titan King 232/244. I'm thinking with these heads I could gain more power going with something different. Any cam experts have a recommendation for something that would work better or maybe a custom cam any vendors would help me with? Other mods are a Mamo ported Fast 102 and 100mm mass air flow sensor. Car is also an auto with a 3600 converter but will be stepping up to a 4000 soon
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The cam you have is a pretty good match to those heads.
With a 4000 stall I would suggest the Mid-Length Runners for
your Fast Intake, but only if you are willing to spin at least
7200 rpm.
With a 4000 stall I would suggest the Mid-Length Runners for
your Fast Intake, but only if you are willing to spin at least
7200 rpm.
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I have an LS3 swapped into my 01 Z28. Currently running the Trickflow 255s along with the LS3 Cammotion Titan King 232/244. I'm thinking with these heads I could gain more power going with something different. Any cam experts have a recommendation for something that would work better or maybe a custom cam any vendors would help me with? Other mods are a Mamo ported Fast 102 and 100mm mass air flow sensor. Car is also an auto with a 3600 converter but will be stepping up to a 4000 soon
Another option would be the Pro Ls Ls3 Stage 4 234 duration (Sum-8711). With the Tfs 255’s having .040 more valve drop, you’ll be able to mill the heads .030 and still have plenty of piston to valve clearance. In fact, you could also run the slightly larger 237 duration Sum-8709 and still be able to clear with milling.
I'm happy with the drivability and all with the cam but i guess i was just curious if something with a smaller split let's say the TSP stage 4 235/239 for example would work better since they obviously flow better than a stock head would
mainly just seeing if anyone thought I was leaving any power under the table by not using something with a smaller split like a 235/239 or maybe something like the vengeance kaotik 235/243
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I used a +6* Exhaust Split, with a LLSR to 7600 RPM. +4* is to short unless you're not spinning beyound
5000 RPM LOL. So 232 intake with a 238-240 exhaust, LSA or forgive me valve events determined by
Steven @ Cam Motion or even Jake AKA DarthV8r. perhaps something like ~112+3.
But the biggest difference will still be manifold runner length,and the ability to use the airflow potential of the heads
to at least 7000 RPM and beyond. Probably worth 15-20+ from 6500 RPM and higher.
Will make the biggest difference at the track by carrying much better to a 7200-7500 RPM shift point.
Swap to the standard length for street driving if need be.
My .02
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The exhaust closing point is key to prevent reversion with the sensitive big valve Ls3 head. You can blow down early without affecting this at all. You can also run a wide lobe separation with more advance to accomplish similar action - yet reduce pumping losses with the early exhaust opening. Check out this video to see the animation. . Here’s how it applies to the Pro Ls cams. https://www.onallcylinders.com/2018/...hoosing-a-cam/
Last edited by Summitracing; Nov 23, 2018 at 06:00 PM.
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I have an LS3 swapped into my 01 Z28. Currently running the Trickflow 255s along with the LS3 Cammotion Titan King 232/244. I'm thinking with these heads I could gain more power going with something different. Any cam experts have a recommendation for something that would work better or maybe a custom cam any vendors would help me with? Other mods are a Mamo ported Fast 102 and 100mm mass air flow sensor. Car is also an auto with a 3600 converter but will be stepping up to a 4000 soon
Also , that particular cam is designed with a stock cylinder head and true flat top piston limitation in mind. You could milll the heads with that one as easily a you could with ours. A 416 short block with valve reliefs would get you room for more cam and use up the prodigious airflow of those heads earlier in the powerband to mesh with the runner length etc.
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The Stage 4 Sum-8709 has .060 intake clearance with a standard Ls3 head. Because that’s right at our .060/.090 clearance threshold, we don’t label it Ls3 specific in case someone would ever drop it in without degreeing the cam in if required. Milling the Tfs heads .030 will make more power everywhere and would theoretically give you .070 intake clearance. That’s as set on kill as it gets with a factory flat top. If you’re feeling like a custom though, just give Steve a call and let him know what you’re thinking about.
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And unless you are going to make change of 6 degrees or more in the intake duration in an effort to increase upper RPM power and also shift the powerband upward, a cam swap will not be worth the effort. Your existing camshaft is a great match for your new Trick Flow heads.