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Rb25det S2 Tomei Camshaft and adjustable tomei cam gears

Dimon

By Dimon,
in R Series (R30, R31, R32, R33, R34)

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joshuaho96 Veteran

joshuaho96

Posted
Posted
On 8/17/2022 at 4:39 AM, Dimon said:

G'DAY 

I have a question  

And I need  some info 

R33 Rb25det  S2    

Camshaft  Tomei  264 lift 8.5mm

Are they   drop in setup

Without modifications  of  head 

And how good are   they 

8.5mm is designed to be drop-in, probably won't be anything much to write home about but it will presumably do something.

robbo_rb180 Grand Master

robbo_rb180

Posted
Posted

https://www.kelfordcams.com/index.php/nz/camshafts/nissan/rb20-25de-det

Better off with a set of more modern cams from Kelford. Email them about your needs and they will recommend most suitable cam profile. I have a set of poncams, they dropped in and did valve springs too. Only because that was al that available in 2009...... 
More lift is what you want  

joshuaho96 Veteran

joshuaho96

Posted
Posted
On 8/17/2022 at 2:55 PM, robbo_rb180 said:

https://www.kelfordcams.com/index.php/nz/camshafts/nissan/rb20-25de-det

Better off with a set of more modern cams from Kelford. Email them about your needs and they will recommend most suitable cam profile. I have a set of poncams, they dropped in and did valve springs too. Only because that was al that available in 2009...... 
More lift is what you want  

I would also recommend whatever you do you get cams that retain the NVCS. Being able to swing the cam even if it's fixed 15 degrees of advance is well worth the effort.

  • Like 2
Dasmbo Collaborator

Dasmbo

Posted
Posted

Yes they are drop in like above i also have Kelford cam in my 33 you will also have to get your car tuned to get the most out of them i would speak to you tuner you might want larger injectors as well depends what other mods you have done to your engine lump idle doesnt mean it will go any better

  • Like 1
Dimon Rookie

Dimon

Posted
  • Author
Posted (edited)

So this  my setup

Walbro 460 fuel  pump straight  from the battery 

E85

370Z coilpacks 

Injectors NISMO 740CC

Fuel pressure  regulator tomei

90mm throtle body 

Front  mount intercooler

GTX3076R

38mm external gate 

Top mount  exhaust  manifold

3inch  exhaust  straight 

Greedy style  plenum

50mm blow off

Oil cooler 

Aluminium  radiator 

ARP head studs 

Tomei  head gasket  1.2mm or 1.3mm

Tomei camshaft  264  and 8.5  

Tomei camshaft gears 

Z32 AIR FLOW Miter 

APEXI POWER FC  

APEXI  BOOST CONTROLLER 

 

Edited by Dimon
robbo_rb180 Grand Master

robbo_rb180

Posted
Posted (edited)

the GTX 3076 will easily make over 320Kw on ethanol no need for cams as will only shift powerband up higher. My old gt3076 does 300kw on 16psi.
I am guessing you want more power?
Ditching the freddy plenum and 90mm throttle body will improve the torque & response everywhere.

Edited by robbo_rb180
  • Like 1
Dimon Rookie

Dimon

Posted
  • Author
Posted
On 18/08/2022 at 9:04 PM, robbo_rb180 said:

the GTX 3076 will easily make over 320Kw on ethanol no need for cams as will only shift powerband up higher. My old gt3076 does 300kw on 16psi.
I am guessing you want more power?
Ditching the freddy plenum and 90mm throttle body will improve the torque & response everywhere.

Yes I wanna  achieve  400kw 

But for 400kw  I need a new  ECU

And bottom  but it will  cost min 4K

So now I wanna really  safe 320kw-330kw

But in the  future   I'll  go to the 400kw and less work  it will take 

Dasmbo Collaborator

Dasmbo

Posted
Posted

If it were my setup replace 90mm throttle body to 80mm to help your apexi air flow setup on your manifold increase your injector size if your going to be running E85.

My setup on my car runs 660cc injectors BP98 Wolf 550 ecu no air flow meter Hyper Gear rtr 43ss2 Turbo 272 Kelford cams Greedy ported manifold with 80mm T/B Lewis stage 3 ported and flowed head and it makes 473hp with 15 pounds boost so im sure with a couple of tweeks you can get similar power i do think you should go the extra mile and get a better ecu as apexi is getting a bit long in the tooth. I hope you get your car up to your expectations

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