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I found the stock specs of the NEO turbo cams, they aren't to bad from factory, I'd start at 7 deg advanced on intake and 5 deg retarded on exhaust and tune from there

Otherwise the 252s would be better for response then the 260s

Just realised you have VCT on inlet so no adjusting there :(

I found the stock specs of the NEO turbo cams, they aren't to bad from factory, I'd start at 7 deg advanced on intake and 5 deg retarded on exhaust and tune from there

Otherwise the 252s would be better for response then the 260s

Just realised you have VCT on inlet so no adjusting there :(

Pretty sure ben has a way of easily adjusting intake cam on neo that im going to look into, How do you feel the 252s would affect midrange and response?

34geeteetee is making 395rwkw with the factory cams in his r34, so really you should save your money and put it towards something more useful

I am under the impression he is using tomei B cams? He is also using E85 which is not an option for me.

It is not a case of saving money or not, i have already purchased type B cams, springs, retainers shims etc.. If it is going to make an Improvement then i might as well do it, but if it is going to be considered a performance Decrease then i should bin the cams for something more suitable.

Perhaps i should start a new thread so i don't derail OP's any further. I am looking more for NEO, specific advise, im not convinced results from rb25 or r33 rb25 would mimic results of the neo

You will see a 10kw gain in the top the issue is will you lose anything in the bottom end and how much!

Cause you'll be surprised the difference losing power from the bottom of the range makes to the overall driving experience

And seriously 10kw can be had by screwing in another 1-2psi of boost and is a lot cheaper that way

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34geeteetee is making 395rwkw with the factory cams in his r34, so really you should save your money and put it towards something more useful

I need to check that.

I'm 99 percent sure he is using type b cams and has raved about them.

Edited by Ben C34
Peak Power Comparison

(for Stock Cat. Equiped Cars)

TYPE A 405 ps
TYPE B 406.33 ps
TYPE R 404.65 ps

So at just over 400ps you make under 2hp less but some on here say lag can improve by 800rpm... I wonder what the difference in power is like at 700ps and 8500rpm

I currently have Grex (Trust) drop in cams that came with the car, as far as I'm aware they came in either 256/256 or 264/264 9.1. Always pondered how much I would kill top end power with the Tomei Type-R, can always do with more midrange :)

Edited by SimonR32

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