camshaft specs on 1uzfe non vvii, 1st gen vs. 2nd.

[ithom]

Hi,
I have desperately been searching to find a post I read here about some minor differences of camshaft specs (lift/duration) between the very first gen 1uzfe (billet fuel rails) vs. 2nd gen (round case fuel rails) .. There was some minor difference in either the intake or the exhaust lift/durations... and it speculated that this may have been partly responsible for the slight increase in HP between the two.
I have searched high a low here and still cannot find that thread.... Anyone with any help on this one ?

Thank you kindly.

 

[Lextreme]

Is this it?

'08 4runner 2UZ HP upgrades?

I have an '08 4runner with the 2UZ VVTi. Did the K&N intake and magnaflow exhaust. What else can I do to boost power? 260-ish sounds awfully low...

www.lextreme.com

 

[ithom]

Is this it?

'08 4runner 2UZ HP upgrades?

I have an '08 4runner with the 2UZ VVTi. Did the K&N intake and magnaflow exhaust. What else can I do to boost power? 260-ish sounds awfully low...

www.lextreme.com

Unfortunately no, it was a member that had done some comparisons of the earliest two 1uz , the “big rod” vs small rod and also noted a slight difference in either intake or exhaust camshafts…
Was speculating that the small difference might be a improvement on a big rod, earliest 1uz….