1zz Tb on a blitz supercharger ... Any good ?

[tooter]

While most of my concepts never make it to reality, this 1ZZ bellmouth adaptor actually did. It's 2 inches thick so there's plenty of material work with. And lots of room to drill a hole in the side to add the breather hose fitting.

$185 including shipping.

When I had one made for the experimental tooter et, I also made one extra just to see if there would be any interest in a Blitz 1ZZ Adaptor.

[CrankyOldMan]

Originally Posted by tooter

When I had one made for the experimental tooter et, I also made one extra just to see if there would be any interest in a Blitz 1ZZ Adaptor.

I woke up this morning thinking about how this would work, and I think it may be slightly too big. I measured the neck of the Blitz at some point, but I've forgotten the exact dimension. I'm thinking 54mm O.D., but that seems awful small if the I.D. is 52mm. I'll have to take the calipers out to the car and measure it again.

[tooter]

Originally Posted by CrankyOldMan

I woke up this morning thinking about how this would work, and I think it may be slightly too big. I measured the neck of the Blitz at some point, but I've forgotten the exact dimension. I'm thinking 54mm O.D., but that seems awful small if the I.D. is 52mm. I'll have to take the calipers out to the car and measure it again.

The bore diameter of the adaptor/bellmouth is straight 55mm, exactly the same as the 1ZZ throttle body.



The bore diameter of the Blitz intake should be at least 46mm to fit the 1NZ throttle body. So there would need to be a perimeter transition of 4.5mm, or slightly less than 3/16 of an inch. That's how much the Blitz runner would need to be flared out at the end. It would leave a thin outer edge which would slip fit up inside the tapered bellmouth curve. It would then be needed to be welded from the outside.

If less than 2 inches were cut off of the Blitz runner, the adaptor would make up that difference, and the 1ZZ throttle body would end up in the same place as the 1NZ.