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I have similar goals but using an 18g Greddy kit and was recommended Kelford cams by Injected Performance. Just started researching them last night. I didn't find anyone using them either here or G35driver.
A lot of times the parts that are suggested and/or used by forum members are merely a popularity contest. If IP is your builder, and is recommending those cams for your build, I recommend seriously considering them. If you have doubts, ask them why they are suggesting those particular cams. Get whatever technical information you can on them, then compare them to GTM and JWT cams.
EDIT: I removed reference to the BC cams since they don't make them for the rev-up motor.
Last edited by ttg35fort; Oct 15, 2009 at 03:18 PM.
I am about to start my build on an 2006 g35 with the Rev-up engine with a g35R powerlab lab kit. I have been researching the availibility of aftermarket cams for this engine and the gains they produce. My goal is ~525-550 whp and maintain the midrange powerband of the g35r turbo. I would like any input from the guys with aftermarket cams on the rev-up engines as far as power gains, changes in powerband, etc. Are they worth it on this engine or should I spend the money elsewhere. Thanks
are you trying to achieve your goal on pump gas? I would put the smallest cam you can stick in it like the Kelford 2-189-A Camshaft.. some try to over cam the engine. A example of this would be how we have made 640whp on race gas with stock cams..you don't need anything big. But Kelford is the best your going to get when it comes to power level out of your cams. Kevin, who owns kelford is one of the smartest people in our industry, and he's friends with the smartest! We use them in everything now...
Originally Posted by IslandZavage
im still researching the pros/cons on going 1mm over.. not too much info out here...
We have made 1380whp on a stock size valve. Hard to convince people that a over size valve will flow more, but it doesn't flow that air where you need it. The VQ has gigantic valves..and Nissan has even stepped down on valve sizes with there new stuff, so it tells you that they have learned the same things we have..simply not needed.
A properly prepared head with a awesome valvejob will out flow a bigger valve head up to .350-.400 lift. The bigger valve will take off after that, but as you noticed the cam your looking at only has .426 lift! So would you rather have a head that flows from .250-.400 lift or .350-.500?
It's just in a more reasonable range for what your trying to do with it. But big valves sells heads.
