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hey guys

i have eng dyno program that allows u to change the specs of the eng and give a power out put im told it;s 95% accuret u can change most things but not all things.

i after the following spec for the rb25de.

the intake and exhaust valve size (diamiter)

the intake lift@valve in mm

the exhaust lift@valve in mm

and can some on exsplaing what small tube and large tube headers is im thinking it's tuned exstractors

if any body wont me to get some figures for them u can send the detales of the eng, turbo, intercooler to me and i see what i can do.

as u can see from the pick ive done a quick un accret nissan 3L single turbo with nos 25hp shot

i can change all these field as the timeings.

if some one can give me the specs of thier eng with a known eng out put ill see how accuret it is

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https://www.sau.com.au/forums/topic/158810-specs-needed/
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hey guys

i have eng dyno program that allows u to change the specs of the eng and give a power out put im told it;s 95% accuret u can change most things but not all things.

i after the following spec for the rb25de.

the intake and exhaust valve size (diamiter)

the intake lift@valve in mm

the exhaust lift@valve in mm

and can some on exsplaing what small tube and large tube headers is im thinking it's tuned exstractors

if any body wont me to get some figures for them u can send the detales of the eng, turbo, intercooler to me and i see what i can do.

as u can see from the pick ive done a quick un accret nissan 3L single turbo with nos 25hp shot

i can change all these field as the timeings.

if some one can give me the specs of thier eng with a known eng out put ill see how accuret it is

Hey,

Don't know if this is going to help much, I have a R33 RB25DE head sitting in my shed just put a set of calipers over the valves and these are the measurements I got,

Intake valve 33mm

Exhaust valve 29mm

If it's any help the cam specs are 240 duration and 7.8 lift

Link to comment
https://www.sau.com.au/forums/topic/158810-specs-needed/#findComment-2962422
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Hey,

Don't know if this is going to help much, I have a R33 RB25DE head sitting in my shed just put a set of calipers over the valves and these are the measurements I got,

Intake valve 33mm

Exhaust valve 29mm

If it's any help the cam specs are 240 duration and 7.8 lift

thanks the perfict any chance u going to sell that head soon

Link to comment
https://www.sau.com.au/forums/topic/158810-specs-needed/#findComment-2968468
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