120r cam question
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6th Gear
Joined: May 2011
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From: Delaware
120r cam question
Crate 120r is tore down at dealership.. had to add 5 qts of oil in 1400 miles down and back to myrtle. Needs pistons rings and jugs....
That said since its open what cams would you throw in it. I want the torque shifted to the left. After this fix i still want it to be reliable.
That said since its open what cams would you throw in it. I want the torque shifted to the left. After this fix i still want it to be reliable.
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Joined: Jun 2006
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From: san antonio
I have seen some dyno charts for the 120R with TMan's 662-1 cams and the torque curve shifted left about 600 rpms as compared to the OEM 266 cams.
I have not run a 120R but have been diligently following threads posted on this an other forums that discuss the pros and cons of basic mods to the crate motor to upgrade from the OEM configuration. Most of those mods relate to headwork and cams.
From what I read, the OEM 266 cams make 100 TQ at 2500 in the stock configuration and does it in a very cool running package. Unless you need more TQ that early and the engine is happy, why not stick with the OEM cams and add a little compression?. That will move the TQ to the left and maintain a pretty good combination of parts that work together well and run cool.
I have not run a 120R but have been diligently following threads posted on this an other forums that discuss the pros and cons of basic mods to the crate motor to upgrade from the OEM configuration. Most of those mods relate to headwork and cams.
From what I read, the OEM 266 cams make 100 TQ at 2500 in the stock configuration and does it in a very cool running package. Unless you need more TQ that early and the engine is happy, why not stick with the OEM cams and add a little compression?. That will move the TQ to the left and maintain a pretty good combination of parts that work together well and run cool.
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Crate 120r is tore down at dealership.. had to add 5 qts of oil in 1400 miles down and back to myrtle. Needs pistons rings and jugs....
That said since its open what cams would you throw in it. I want the torque shifted to the left. After this fix i still want it to be reliable.
That said since its open what cams would you throw in it. I want the torque shifted to the left. After this fix i still want it to be reliable.
Either bring the compression up to support the 266 better, or take a look at an S&S .625.
If you had it cc'd, and was no more than 10.7 cr, take a peek at a .585.
Scott
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leeinmemphis
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Sep 19, 2009 10:05 AM
