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Cam advice for RB25 build

iTzTMG

By iTzTMG,
in Engines & Forced Induction

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iTzTMG

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Hey guys,
I'm looking for some advice/recommendation on cams for my RB25DET build.
The car will be used as a street/drag car and the goal is to be running in the 10's.

Currently I have Tomei Poncams from my previous setup but looking to upgrade to some bigger cams for a stronger mid to top end.
I contacted both Camtech and Kelford and was recommended the following:
Camtech: 272/272 9mm lift
Kelford: 262/272 9.30/9.35mm lift

Anyone have any experience with one or the other or any advice on which of these cams would be the best option in my case.

The specs of the engine will be:

87mm bore
CP pistons 9.0:1 pistons
Upgraded piston pins
Spool H beam rods
Supertech +1mm valves
Supertech bronze valve guides
Supertech valve springs
Ported cylinder head
ID1000 injectors
CRG twinscroll exhaust manifold
Precision 6466 turbo
Dual TIAL 44mm wastegates
FFP intake manifold
Haltech Platinum pro ECU
Tomei adjustable cam gear (exhaust only)
Small shot of nitrous 
Water/Meth injection
Will keep VCT
Will keep hydraulic lifters
Will be running on 98 and 102 pump gas.
Manual gearbox

 

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iTzTMG

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12 hours ago, GTSBoy said:

You'd probably be hard pressed to see the difference between them even on a dyno.  The Kelfords are ever so slightly better for the street, the Camtech possibly ever so slightly better for drag.

 

12 hours ago, Dose Pipe Sutututu said:

I personally would go for the Kelford, has more lIft.

Thanks guys.

9 hours ago, Figjam Jimmus said:

Do these cams work with the Nissan VCT? Or, are you not running the VCT? Do either cam need head clearance work done?

Yes, they are VCT compatible, I will be running VCT on my build. These are "drop in" cams, so no head clearance required.

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Figjam Jimmus

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On ‎3‎/‎26‎/‎2019 at 9:26 PM, iTzTMG said:

 

Thanks guys.

Yes, they are VCT compatible, I will be running VCT on my build. These are "drop in" cams, so no head clearance required.

Awesome stuff. Both cams seem a very good choice over the "norm" Tomei 256 'drop-ins'.

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