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Sos To All Rb25 Tuning Guru's & Skyd

Targa Tom

By Targa Tom,
in Engines & Forced Induction

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Targa Tom Proficient

Targa Tom

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Just a request for some time saving info re VIT on RB 25's We have just had our preliminary run on the dyno with our circuit car. Without going into details of spec, it charges its way toward 300rwkw (tire spin to be resolved), but initially it has a soft spot off boost.

What is the concensis of the variable advance. Retain v loose? what is the best base line inlet cam (standard) timing? Do non variable RB20 type cams fit the RB25?

We aren't real bright down here on the island... so any help appreciated.

I know I have moved to a Valiant... but still having Nissan fun too

TT

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BezerkR32 Veteran

BezerkR32

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Hi mate, we run rb20 inlet cams in RB25 to eliminate vvt and run adjustable gear, i think it depends on what series engine though, i havnt tried it in series 2 yet. Only do this with big engines though, mild engines we retain the vvt and control it with the ecu. keeps a fat torque band through the mid range. depends on your application.

Hope this helps a little. Regards Stuart.

Just a request for some time saving info re VIT on RB 25's We have just had our preliminary run on the dyno with our circuit car. Without going into details of spec, it charges its way toward 300rwkw (tire spin to be resolved), but initially it has a soft spot off boost.

What is the concensis of the variable advance. Retain v loose? what is the best base line inlet cam (standard) timing? Do non variable RB20 type cams fit the RB25?

We aren't real bright down here on the island... so any help appreciated.

I know I have moved to a Valiant... but still having Nissan fun too

TT

Sydneykid Grand Master

Sydneykid

Posted
Posted
Just a request for some time saving info re VIT on RB 25's We have just had our preliminary run on the dyno with our circuit car. Without going into details of spec, it charges its way toward 300rwkw (tire spin to be resolved), but initially it has a soft spot off boost.

What is the concensis of the variable advance. Retain v loose? what is the best base line inlet cam (standard) timing? Do non variable RB20 type cams fit the RB25?

We aren't real bright down here on the island... so any help appreciated.

I know I have moved to a Valiant... but still having Nissan fun too

TT

What cams you got in it?

:whistling: cheers :P

Targa Tom Proficient

Targa Tom

Posted
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Posted
What cams you got in it?

:( cheers :D

Standard at the minute, but I have suggested the boys put in a set of my Tomei PonCams (RB20 with adj wheels) but didn't know if it was possible.

I have been bombarded with questions and have no exposure to RB25... so thought rather than talk crap - ask first.

Thanks GC

GJ

Targa Tom

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