Toymods Car Club Inc: Tech & Conversions => 4AGE: Big cam = hotter engine?

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oldcorollas
Forums Junkie

Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003

Re: 4AGE: Big cam = hotter engine?	Mon, 08 March 2004 12:15

LOL, stage II, is that like EP for rotors? (or is it mild, street, extend ) it all depends on how many "stages" you feell like making. i have a stage4 cam of 7 stages, but 5-7 are not streetable. if your cam maker only has 3 stages, where does that leave you? did you change anything else at the same time? compression? timing? i have found that with very advanced timing, high comp and the cam, temps went up, but i also have very rich mixtures... temp in the chamber is due to mixture and also peak compression pressure. with everthing else exactly the same, longer cams will give you higher peak pressures (since you are getting more air in there) and it will run a little hotter than usual, but not much. check timing is not too much, check AFR's on either dyno, or borrow a WB. if they are ok, then just need to live with it btw, i have 4K, 10+CR, 277/284cam, so is roughly comparable to the 16V 272 cams...... also if you can, check the actual temp, either using K-type thrmocouple, or gauge... might even be worth it to fit a second gauge (or fit sensor and have gauge as temporary when you do changes) hmm, if you were in sydney, i could organise a thermocouple, but not WB ... not yet Cya, Stewart [Report message to a moderator]

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