Need help choosing a good low end cam
01-13-2007, 05:45 PM
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Car: 89 Camaro/ 02 GC Overland
Engine: 355 V8/ 4.7 HO V8
Transmission: T5/ 545RE
Axle/Gears: 10 Bolt 3.73/ Dana 30, Dana 44 3.73
Need help choosing a good low end cam
Well I searched around am Im not finding what Im looking for. Ive got a SD 305 TPI in my car, five speed and a 3.73 rear end(may go down to 3.42). Anyway im looking for a cam that will give me good low end and a lil bit of mid range. Looking for somethin from like 1500ish up to around 3500 rpm. Im no expert tho so what every you guy can recommend for a good cam it would be very helpful. Theres also going to be a little bit of work done to the stock 081 heads.
Matt
Matt
01-13-2007, 05:52 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Well I searched around am Im not finding what Im looking for. Ive got a SD 305 TPI in my car, five speed and a 3.73 rear end(may go down to 3.42). Anyway im looking for a cam that will give me good low end and a lil bit of mid range. Looking for somethin from like 1500ish up to around 3500 rpm. Im no expert tho so what every you guy can recommend for a good cam it would be very helpful. Theres also going to be a little bit of work done to the stock 081 heads.
Matt
Matt
The peanut cam, lol
I think you should look for something that makes power in the idle-5,000 rpm range for a TPI 305. This will push the peak torque range of the cam up to where the TPI setup resonates and give a big push in mid-range torque. You are dealing with a low geared vehicle with 3.73 gears. You can trade off some low-end torque for some top end HP and everything will still be great.
01-13-2007, 06:14 PM
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Car: 89 Camaro/ 02 GC Overland
Engine: 355 V8/ 4.7 HO V8
Transmission: T5/ 545RE
Axle/Gears: 10 Bolt 3.73/ Dana 30, Dana 44 3.73
See im not good at all this cam selection stuff. It makes sence to give up a lil low end cause of the gears. So what would you recommend for something from idle-5k.
matt
matt
01-13-2007, 06:52 PM
#4
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The stock LB9 roller cam from 1988 is pretty good in the lows and mids. Smooth idle, etc... Much better than the peanut.
01-13-2007, 08:22 PM
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Car: 89 IROC/05 RX8
Engine: LS1/LS1
Transmission: T56/T56
Axle/Gears: 3.42 GM/3.55 8.8
My car is getting a LT1 cam this weekend. it has .447 lift, and its the roller cam i needed.
Got it for $20, also have another avaliable.
Sheldon
Got it for $20, also have another avaliable.
Sheldon
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01-13-2007, 08:39 PM
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Car: 89 Camaro/ 02 GC Overland
Engine: 355 V8/ 4.7 HO V8
Transmission: T5/ 545RE
Axle/Gears: 10 Bolt 3.73/ Dana 30, Dana 44 3.73
So what are we talkin as far as the LT1 cam goes. It just so happens I have one of them kickin around. What kinda performance would I be in for. Ill be running 1.6 rockers too.
Matt
Matt
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