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Dan,

Unsure about the r34's vct but the R33 turbo vct flicks over at a lower rpm compared to the non turbo. I'd assume this is due to airflow differences, the turbo obviously pushing a lot more air through the motor will benifit from the switch over point being lower than n/a (which it is).

This 'may' give the feeling of an urgency in the top end as torque fades off a tad then vct flicks over and picks up again giving the urgency feel.

Speculation but it kind of makes sense.... ;)

Hey dan,

i got NGK Platinum sparkies in my ride atm( installed 2 months ago), but im not sure what heat rating they are and if there difference from the turbo model skyline. Did a search on teh NGK site but nothink in regards to the RB25DE,Your other post said Heat Rating of 7 is good.

Is it urgent to install new sparkies? If not ill changed down the track.

Edited by shorty_01

I put the 7's in only so I could 100% rule out any issues with the tuning related to them. I didn't want to go through the process to find it was pinging due to too high a heat rating.

Speaking of which I need 7's for my next tune on this car :dry:

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