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Run-in Engine With Aggresive Cams

russwestwood
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russwestwood Apprentice

russwestwood

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Hello all. Im in a little bit of a dilemma. Im putting in a 2.8l Tomei stroker kit into my R34 GTR with also more aggressive 270 degree and higher lift cams.

My question is, during the break-in/ run-in, should I have already installed the 270 cams or should I just stick to the stock cams and then change them out and run them in separate? My mechanic intends to install the cams prior to the run-in and im wondering if this would pose any problems or not. Thanks a lot guys. :rofl:

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Oblivion Grand Master

Oblivion

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Exactly my thinking, bed the rings in on the dyno run for a few hrs, on a simple tune. Bed them in via low boost n high boost etc....

Then once its tuned can take it easy after that for a bit if you like, your mechanic should know

Edited by Oblivion
russwestwood Apprentice

russwestwood

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So as long as the rings seal in nicely after a good dyno run, whatever the cam profile doesnt affect the run in.. nice one. Im still a little confused with the whole process as there are a few schools of thought and ive never experienced a rebuild like this before. Oblivion: I guess you're right and the mechanics should know.. but Is there a specific guideline as to how much max boost & rpm to run during the initial dyno tune? Some say not to underload and some not to overload.. I guess Im just a little paranoid and wanna make sure these guys do whats best, especially when it comes to my beloved ride! :) Cheers guys and sorry for the silly questions.

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