RB26 Cams in a 25?

Discuss the RB20, RB25 and RB26 series engines.
Jimefam
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Joined: Tue Jun 12, 2007 7:16 am

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I have an RB25 with a tomei solid lifter conversion kit and am wondering what all would be required to run Tomei's 290 duration cams as opposed to the 270 I have now. Thanks


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StricNyne
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machine head for the lift, and i believe thats it

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meet07
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Jimefam wrote:I have an RB25 with a tomei solid lifter conversion kit and am wondering what all would be required to run Tomei's 290 duration cams as opposed to the 270 I have now. Thanks
ang how big of a turbo are you running and how high are you reving that thing?

l0nestar
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meet07 wrote:and how big of a turbo are you running and how high are you reving that thing?
1000 whp, or until it goes as-plode. Whichever comes second.

Jimefam
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Joined: Tue Jun 12, 2007 7:16 am

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Turbo I'm gonna be running is a Precision PT7685. I will be revving til 10,500 and that's why I'd like the higher lift cams. That is exactly right lonestar so hopefully soon we will see which comes first. As for the GTR cams in a 25 for the 11.5mm lift apparently I need longer valves and different lifters as the tomei kit keeps the stock length valves and the solid buckets use a stem to do that. So shortly I will have posted up my current valvetrain and cams and am ordering different stuff tomorrow that will allow me to run the more aggressive cams.


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