Race Engine...

[monster]

Ok, so the time has come to pick an engine for my next race car. I was aiming for an RB25DE NEO with some faily mild bits and pieces but trying to find exact info on these is hard.

Ok's, so what exactly makes it (NEO) special from the 33 RB's and which is better suited to high revs?

Whats the compression rating on both and the power output?

The RB25DE run direct actuation lifters correct (SR Hydralic... Pfft)

Would an RB24 (ie RB26 bits with Tomei Pistons) be better suited to a NA tune?

What diameter are the GTR throttles?

I saw there was a bit of a debate on whether turbo cams would be effective in an NA tuning situation... has anyone actually used turbo cams?

Go easy on me... I'm a n00b to the Nissan

[Kaido_RR]

there not alot of info on it

"They are 6 connected throttles of RB26. The manifold for NA. It is the HKS delivery pipe attachment. Funnel kernel funnel 70 millimeter."

[monster]

They look awsome...

Where do I get them from?

[Eug]

HKS I suppose, but not only are they rare, they are extremely expensive.

Turbo and NA cams and cam gears are exactly the same (respective of pre or post 96), neo is different.

[AlexCim]

I dont think it is any specific brand or anything, read it it says its

N/A manifold, with attached RB26 funnels, with a HKS fuel rail. Looks pretty custom to me.

[andylaurel]

what chassis will the motor be used in?

[monster]

More than likely a '32

Does anyone know of where I could find a thin headgasket (read: 0.8mm) or heavy duty valve springs for a RB25 NEO?

Does anyone do a bigger cam than 270deg