Did the 89 -91 Maxima also use the variable induction system? Im extremely interested in knowing why the 89-91 VGs had peak torque 182@3200rpm, but the newer 92-94 VGs peak torque was 182@2800rpm. Anyone that has the older 89-91 brochures please help. thanx!!

Larry R

 

My 90 has a 'power valve' in the intake that supossedly legnthens the intake runner size i think if thats what you're talking about. not sure how the newer ones are tho.

 

you mean THIS power valve?

<img src=http://24.1.29.190/blehm/pics/car/intake_manifold/clean_upper_manifold_2.jpg>

Yup.. we got 'em too.

 

Yup...looks just like mine when i had mine off

 

you sure it didn't look more like this? -->
<img src=http://24.1.29.190/blehm/pics/car/intake_manifold/dirty_upper_manifold_1.jpg>

 

Hmm you're right..mine was nasty..especially with 174k on it when i pulled it