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LS3 supercharger cam

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Old Oct 23, 2019 | 06:47 AM
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Default LS3 supercharger cam

Hello, Im a new member and ive got a couple of questions.
im building an LS3 swapped 1972 GTO that im gonna daily. I wanna make 750whp . Im gonna procharge it, and im ordering parts but i dont know nothing about cams. Ive been talking to Texas speed and they recommended their stage 2 supercharged cam Specs: 227/235, .641"/.649", 114 LSA. What are your opinions , any help and tips?
thanks for your help.
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Old Oct 23, 2019 | 06:56 AM
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Try giving these guys a call:

http://www.cammotion.com/camshafts/s...-ls-camshafts/
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Old Oct 23, 2019 | 07:00 AM
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Originally Posted by joyridin'
Will do when i get chance. Calls to the US are bit hard since im from Kuwait. Unrelated question, should i just reply or should i quote first?
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Old Oct 23, 2019 | 07:06 AM
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I like that cam spec
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Old Oct 23, 2019 | 08:22 AM
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BTR has a good supercharger cam profile that I ran... 227/244 .615/.595 115+5. It should easily get you where you want to go.

https://www.briantooleyracing.com/bt...-camshaft.html
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Old Oct 23, 2019 | 08:35 AM
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The suggestion from Jake is a good one.
The one you suggested falls short as IVC is too early and EVO is too late.
The BTR is the go.
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Old Oct 23, 2019 | 08:39 AM
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Originally Posted by Darth_V8r
I like that cam spec
Agreed.
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Old Oct 23, 2019 | 08:42 AM
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Originally Posted by JakeFusion
BTR has a good supercharger cam profile that I ran... 227/244 .615/.595 115+5. It should easily get you where you want to go.

https://www.briantooleyracing.com/bt...-camshaft.html
Is it good for daily driving?
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Old Oct 23, 2019 | 08:43 AM
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Originally Posted by ddnspider
Agreed.
Why? Could you explain?
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Old Oct 23, 2019 | 08:51 AM
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Originally Posted by 1972GTO
Why? Could you explain?
The 1st cam you posted has 3 degrees of overlap, making it daily driver quality while still having enough duration and I/E split to breath for 750whp.
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Old Oct 23, 2019 | 09:00 AM
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Originally Posted by ddnspider
The 1st cam you posted has 3 degrees of overlap, making it daily driver quality while still having enough duration and I/E split to breath for 750whp.
And with the higher lift it will get plenty of air under boost with less duration.
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Old Oct 23, 2019 | 09:44 AM
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Originally Posted by 1972GTO
Is it good for daily driving?
Yeah. It's about as big as I would go for a daily.

But it was designed for the LS3. Good valve events and pulls to 7000 cleanly.
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Old Oct 23, 2019 | 10:39 AM
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Originally Posted by JakeFusion
Yeah. It's about as big as I would go for a daily.

But it was designed for the LS3. Good valve events and pulls to 7000 cleanly.
Will it work for a centrifugal supercharger or is it for a roots type? Is there even a difference between them when choosing a cam? According to my understanding centrifugal superchargers work In higher rpms, unlike roots type.
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Old Oct 23, 2019 | 10:43 AM
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Originally Posted by 1972GTO
Will it work for a centrifugal supercharger or is it for a roots type? Is there even a difference between them when choosing a cam? According to my understanding centrifugal superchargers work In higher rpms, unlike roots type.
This camshaft is specifically for a centrifugal supercharger.
Check out the link and you will see.
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Old Oct 23, 2019 | 10:56 AM
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It's for centrifugal. You need more exhaust duration as well when you go that route with an LS3.

And I wouldn't do a ton of lift with a blower. That's a lot more stress on the valve springs.

Picking an NA cam and a blower cam are different. Your original cam looks more like an NA cam, honestly.

I was very happy with that cam.
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Old Oct 23, 2019 | 03:08 PM
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I would be glad to help you. What size Procharger? What is your transmission and rear end setup look like? What kind of idle characteristics do you want?

I am building a F1a94 Procharged LS427 for my personal car right now.



~Steven
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Old Oct 23, 2019 | 03:35 PM
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Originally Posted by CAMMOTION PERF
I would be glad to help you. What size Procharger? What is your transmission and rear end setup look like? What kind of idle characteristics do you want?

I am building a F1a94 Procharged LS427 for my personal car right now.



~Steven
I still havent decided on which procharger to get. I just got the engine and im just gathering the parts to order them all at once, cause shipping to Kuwait is expensive 😅. The trans is T56 magnum (wide ratio) and an 8.5 10 bolt 3.73 ratio. I wanna a smooth idle. I want a cam that will be good for 750whp and daily driving.
Thanks a lot for your help,
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Old Oct 24, 2019 | 04:25 PM
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Originally Posted by 1972GTO
I still havent decided on which procharger to get. I just got the engine and im just gathering the parts to order them all at once, cause shipping to Kuwait is expensive 😅. The trans is T56 magnum (wide ratio) and an 8.5 10 bolt 3.73 ratio. I wanna a smooth idle. I want a cam that will be good for 750whp and daily driving.
Thanks a lot for your help,
If you want a smooth"ish" idle and daily driving, I would recommend this camshaft: http://www.cammotion.com/camshafts/p...-displacement/
. I can make you an even smoother idling custom camshaft with these specs: 228/242 on 120+4 with .621"/.604" valve lift. No extra charger for the custom cam.

A good blower for daily driving would be the D1SC, but a D1X would make it easier to hit your power target, You will have to ask Procharger if the D1X will hold up in a daily driver environment.
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