does anybody know if the cowl is tall enough to clear the pathy manifold and throttle body??
-86 turbo

 

nope. . . . .

 

I know for sure, it won't. Additional modifications are required.

 

like using longer bolts or adding washers ??? OR are you talking about cutting out some of the hood??

 

Yes, you can raise the rear of the hood about 1/2" and it will clear the TB end of the intake. However, this looks like poop and takes away from that smooth look a z31 is suppose to have.

Other options include:

Lowering the engine a little. You can't go too far or you'll lay the oil pan on the cross-member. Some have talked of dropping the cross-member down a little as well, but I don't recall if anyone did it, or not. I think the big concern with lowering the entire cross-member was messing up the suspension geometry. Getting the engine to a lower point would have the additional benefit of lowering the center of gravity of the car. A notable improvement in handling could be gained.

Modify the intake to miss the hood. This the route I chose because it required less work. Also, if I messed it up it was easy to get another one. I used a CNC mill to remove material, at an angle, from the lower intake mating surface of the upper intake (plenum). More material was removed from the left edge of the mating surface, thus changing the mounting angle of the entire piece. This dropped the overall height of the TB section to the point it is almost touching the left valve cover, and it no longer touches the hood.

It's a tight fit


But, the hood will close like it's suppose to.


I would have posted the pictures instead of the links, but for some weird reason, the IMG code is off. Duh-huh!!!

 

OK thanks for the help. BTW Do you have any pics of the whole front end of the car with the hood closed... I just want to see how it looks with the taller cowl before I buy it.... I've never seen it on a real car and it looks almost too tall for my liking. As well do you have any pics of the underside of the hood.....is it like OEM??

 

The only pic of the underside is the one I took to show how I had tried to trim some away to get it to clear the TB... It is just like the underside of the z31 hood, except for the cowl opening...


Here's pic of the hood on the car. The car is in it's 3rd rebirth and is not yet complete, but you'll get the idea of how it will look... There is an image or two in the zdriver gallery, as well...

 

you never finish projects. they just keep going and going and going.....

 

very nice ride! Thanks for the pics.