Good cam
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Instructor
Joined: Dec 2009
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From: Armstrong British Columbia
Good cam
can anyone answer weather this cam would drop in to my bolt on ls1. I have a ported ls6 intake, 80mm bbk tb, tuned granatelli maf and muffler delete with borla resonator. I have PAC. 650 springs with titanium retainers to install to support the lift. Just hope I can drop it in. Any feedback woukd be appreciated.
Thread Starter
Instructor
Joined: Dec 2009
Posts: 106
Likes: 1
From: Armstrong British Columbia
Forgot to mention I have 13/4 headers being installed, and track the car 1/8th mile over 4000feet elevation 2-3 times a year. With z06 injectors. I expected to need a tune as it has a flashpac tune so 400ish hp. Quetion being am I going to run into ptv clearance issues or is it a safe cam and lift. Always run on chevron 94 octane
Last edited by XXXcorvette; Mar 28, 2018 at 11:36 AM.
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Compression ratio way too low for a cam like that.
That cam belongs in a 427 or similar big cube motor.
If that was in a 346 it would have to be a high compression, high rpm screamer.
PASS on that cam.
That cam belongs in a 427 or similar big cube motor.
If that was in a 346 it would have to be a high compression, high rpm screamer.
PASS on that cam.
Race Director
Joined: Sep 2005
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From: Pasco WA
I would think the PTV clearance is minimal with that cam; you may have to flycut. With stock heads, you may have better results with something around 230-234 duration. The intake mods aren't doing much of anything, with the exception of a LS6 intake manifold. Z06 injectors may also be at max or beyond, so have your tuner check. Also, a Lingenfelter fuel pump is a nice safety net.
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Thread Starter
Instructor
Joined: Dec 2009
Posts: 106
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From: Armstrong British Columbia
BTR stage 2
Would a stage 2 BTR N/A ls1 cam be mild enough for my stock ls1, with described bolt one?? What would I need to support the cam? Trying to keep heads on till fall.
Last edited by XXXcorvette; Apr 13, 2018 at 12:11 PM.
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Race Director
Joined: Sep 2005
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From: Pasco WA
I haven't memorized all the manufacturer's specs, so post a link, or just list the cam specs if you want an opinion.
Burning Brakes
Joined: Oct 2014
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From: Detroit MI
I'm running that cam (BTR Stage 2) and didn't have PTV issues even with slightly milled heads. I really like the cam and with my heads (Livernois Stage 3) and LS6 Intake it made 440whp after dyno tune.
All that said, when I measured PTV, it was at the minimum recommended amount. I'd consider this to be the biggest you could go without needing to pull the heads.
The biggest concern with PTV is the exhaust valve because the piston is moving towards it while it's opening. A cam with slightly less exhaust duration (which is what matters on PTV, not lift) might be just a tad safer. Something like a Cam Motion Titan 4...
http://www.cammotion.com/camshafts/t...227-232-113-4/
VERY similar to the BTR Stage 2, just a bit of changes on the exhaust side (less duration, more lift) which would be preferred when concerned about PTV.
All that said, when I measured PTV, it was at the minimum recommended amount. I'd consider this to be the biggest you could go without needing to pull the heads.
The biggest concern with PTV is the exhaust valve because the piston is moving towards it while it's opening. A cam with slightly less exhaust duration (which is what matters on PTV, not lift) might be just a tad safer. Something like a Cam Motion Titan 4...
http://www.cammotion.com/camshafts/t...227-232-113-4/
VERY similar to the BTR Stage 2, just a bit of changes on the exhaust side (less duration, more lift) which would be preferred when concerned about PTV.
Le Mans Master
Joined: Jul 2010
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can anyone answer weather this cam would drop in to my bolt on ls1. I have a ported ls6 intake, 80mm bbk tb, tuned granatelli maf and muffler delete with borla resonator. I have PAC. 650 springs with titanium retainers to install to support the lift. Just hope I can drop it in. Any feedback woukd be appreciated.
This will fit in a stock C5. So ptv with cam cam is no problem without milled heads.
Burning Brakes
Joined: May 2014
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From: Detroit
I'm very happy with the cam. The car is still plenty comfortable to daily drive for me, even through traffic and parking lots, yet obviously still makes great power.
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Instructor
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From: Armstrong British Columbia
Okay so I bought a 230/236 cam 112lsa. Just a smidge under .600 lift on Both sides. My question is will I need new injectors over z06? And with the extra .110 lift should I get .050 longer pushrods? Remember I don' want to take the heads off. Ordering degree wheel immediately. Thanks any help appreciated
Burning Brakes
Joined: Oct 2014
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From: Detroit MI
Okay so I bought a 230/236 cam 112lsa. Just a smidge under .600 lift on Both sides. My question is will I need new injectors over z06? And with the extra .110 lift should I get .050 longer pushrods? Remember I don' want to take the heads off. Ordering degree wheel immediately. Thanks any help appreciated
Lift has no bearing on pushrod length. With 100% stock heads, you'll PROBABLY be ok with 7.4" pushrods. Best to get the cam in the engine and measure with a length checker. They're cheap.