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Cam questions?

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Old Dec 4, 2005 | 08:36 PM
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leftme4dead's Avatar
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Default Cam questions?

I have a couple questions. 1st off when it comes to a cam ie trex cam, and it says you need like 4.10's or greater on manuel cars, and a 4000+ converter onautos. and you cant use like 1.8 rockers, I was wondering why?

I also would like to know does the converter matter, for ex if it said 3500+ could I use a stall @ 3000. Also if it said 4.10 or greater could I use my 3.73's?
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Old Dec 4, 2005 | 09:00 PM
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yak
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i think with 1.8 rockers the ptv clearance would be too tight if not negative (valve is in the piston) you can use a smaller stall, butthe car will be a total DOG down low. my g5x3 on a stock stall was funny, it pulled so hard up top people thought i was spraying at about 4000 but it was just the cam doing what it is supposed to.
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Old Dec 4, 2005 | 09:11 PM
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You say it will be really slow down low, if I put a cam on would I loose power @ the bottom, or would it just stay the same and I would gain a lot at the mid and top?
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Old Dec 4, 2005 | 09:34 PM
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if its not set up right you can loose power down low. its kind of hard to tell as most dynos don't have charts for under 2500rpms.
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Old Dec 5, 2005 | 07:40 AM
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Man, T-Rex is way too big for what you want.
Look at something in the 228/232 range
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Old Dec 5, 2005 | 07:44 AM
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im not going trex, i was just curious why they rec certasin things or said use a certain stall or what not, im getting the tr 224/224 lsa 114 i think,


Also for the other question, how come it says use 4.10 gears or higher, can you use 3.73's on a cam that says use 4.10 or higher?
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Old Dec 5, 2005 | 08:07 AM
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Because a cam like T-Rex has a powerband of 4000rpm>7400 rpm
So 4:10's are required to reach that powerband quicker and not be a dog in low rpms.
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