Tomei Con Rod+tomei Piston 87mm

[naklaju]

Just want to ask about this setup...on RB25DET neo ER34

tomei conrod and bearing

tomei piston 78mm

tomei metal gasket 1.5mm

T04R turbine with waste gate

greddy exhaust manifold

sard 800cc injector and fuel rail

haltech

tomei fuel pump for ER34

tomei pon cam 256' 9.5 lift

FMIC

tanabe exhaust system 3inch all the way to cat back

what boost should i go if i want 600rwhp or what rwhp can i get with ths setup..

How many rwhp and boost can the tomei piston and rod can withstand..

any suggestion from any forumers

Edited May 10, 2007 by naklaju

[Risking]

78mm pistons??

Standard bore size is 86mm for the RB25.

The RB20 has a 78mm bore. I think you may be looking at the wrong pistons??

There is really no reason to go big name jap pistons. For almost every application there are plenty of local forged pistons that are easy to get and in most cases cheaper. get prices on CP's, Arias, weisco's, ACL's etc before purchasing Tomei pistons.

Ive used tomei pistons recently in an SR20 the owner supplied them and tomei rods. I wasnt overly impressed. They were all within spec but size and weight variances were a bit great for the dollars he paid. The rings are average and the ring clearances (not end gaps but groove clearances) were absolutly rubbish.

The rods needed a bit of work to get the right oil clearances which is typical of any brand really.

Just be warry that another product may save you a few bucks and be just as good for what you want it to o.

Edited May 10, 2007 by Risking

[naklaju]

sorry typing error...87mm piston..

[sh@un]

You're unlikely to get 600rwhp with that turbo at any boost level. What A/R turbine does it have?

edit- 'zorst is probly a little small too.

[naklaju]

its .70ar

[sh@un]

That A/R seems a little too small to expect 450rwkW to me. The most efficient boost level will probably be somewhere around the 24psi mark.

[naklaju]

With the T04r how much can be achieved..or need ar1.00

Edited May 10, 2007 by naklaju