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

[47_MasoN_47]

I'd definitely 1zz my Blitz if there was a way to make it bolt on.

[tooter]

Originally Posted by 47_MasoN_47

I'd definitely 1zz my Blitz if there was a way to make it bolt on.

I'm not familiar with what your clearances are. Would bolting something additional onto the top of your throttle body base cause issues if the throttle body's position was raised up higher?

[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.

[47_MasoN_47]

Originally Posted by tooter

I'm not familiar with what your clearances are. Would bolting something additional onto the top of your throttle body base cause issues if the throttle body's position was raised up higher?

It just depends on how much higher it would be...

[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.

[CrankyOldMan]

OK, here's a little better info: I measured the intake at 2.06-2.07", meaning 52-52.5mm OD. Looks like the bellmouth would need another spacer or have to be flared.

The good news is that a 2.5" -> 2" silicone coupler would allow my bracket to fit, but it would need another mounting point for the radiator hose. I'm still thinking that the xB intake tube would be the best way to make it happen since it is round all the way at the top instead of all squashed like ours.

[tooter]

[quote=CrankyOldMan;702651]OK, here's a little better info: I measured the intake at 2.06-2.07", meaning 52-52.5mm OD. Looks like the bellmouth would need another spacer or have to be flared.

Wow... that's really small.

The good news is that a 2.5" -> 2" silicone coupler would allow my bracket to fit, but it would need another mounting point for the radiator hose. I'm still thinking that the xB intake tube would be the best way to make it happen since it is round all the way at the top instead of all squashed like ours.

Your silicone adaptor idea is much better!

By the way what is an "xB intake tube"? Can you post a pic of one?

[CrankyOldMan]

Originally Posted by tooter

By the way what is an "xB intake tube"? Can you post a pic of one?

After looking at more images, it would still have to be altered to point in the right direction, but it could be easier than making one from scratch.

[47_MasoN_47]

Did you measure the diameter on an XB kit or a Yaris kit? I know the Yaris has a single piece pipe thing that comes off the top of the supercharger where the XB kit has that split one. I wonder if they might be different diameters?

[CrankyOldMan]

Originally Posted by 47_MasoN_47

Did you measure the diameter on an XB kit or a Yaris kit? I know the Yaris has a single piece pipe thing that comes off the top of the supercharger where the XB kit has that split one. I wonder if they might be different diameters?

I measured mine from my Yaris kit. As far as I know, the TB bore is the same, so the blitz runner bore should be the same. I can't tell from the images if the lower half of the runner looks bigger or not, so the OD is unknown unless you can get an xB owner to measure theirs.

[tooter]

With in inside diameter of 46mm and an outside diameter of ~52mm the Blitz intake must be an extremely thin casting to have walls that are only 3mm thick. That's tubing thickness. I'm wondering how they were able to pour aluminium into such a thin casting without leaving porous pockets.

[CrankyOldMan]

It's a very strange casting, indeed. You can see lots of seams inside from the different sections of the wax master that were never smoothed out, like bad concrete foundations.

[CrankyOldMan]

While waiting for my engine to cool off enough to change the oil yesterday, I installed my injen CAI. Some interesting things to note:
* The stock throttle body is TINY compared to the 1ZZ.
* The injen intake isn't a suitable donor for a 1ZZ due to the diameter of the mating end and the limited space to clamp a silicone coupler near the MAF mount.
* Finding an inexpensive aftermarket intake to scavenge a MAF section from is difficult, now that the Simota is not readily available.
* Finding an off-the-shelf 2.25" MAF section is pretty much not going to happen.
* Putting an intake on a supercharged engine makes for some really silly noises.
* There is a LOT of room to get creative in there, provided you can do all the silliness where the OEM intake was--not much clearance at the top of the S/C.

Correction: this may be a suitable alternative source for a MAF section, assuming you can deal with a 3" body:
http://www.spectreperformance.com/in...apter-kit.html

[JustDidIt]

Originally Posted by CrankyOldMan

* Finding an off-the-shelf 2.25" MAF section is pretty much not going to happen.

Correction: this may be a suitable alternative source for a MAF section, assuming you can deal with a 3" body:
http://www.spectreperformance.com/in...apter-kit.html

You could hack up this eBay intake kit for the MAF housing - verified its 2.25"

I tried the Spectre 3" MAF - immediately threw a CEL - MAF out of range. Unless you can modify this setting with the ECM - 3" is just too big for the 1.5.

[tooter]

Originally Posted by JustDidIt

You could hack up this eBay intake kit for the MAF housing - verified its 2.25"

I tried the Spectre 3" MAF - immediately threw a CEL - MAF out of range. Unless you can modify this setting with the ECM - 3" is just too big for the 1.5.

Now, that is one hell of a deal for only 44 bucks and free shipping!



It's well worth it, if only just to get a MAF section.

[CrankyOldMan]

Originally Posted by JustDidIt

You could hack up this eBay intake kit for the MAF housing - verified its 2.25"

I don't see any info on it being 2.25. Did you verify it yourself, or are you saying "if it's verified"?

I tried the Spectre 3" MAF - immediately threw a CEL - MAF out of range. Unless you can modify this setting with the ECM - 3" is just too big for the 1.5.

Was that with the 2.25" 'calibration tube'? Was it by chance P0103? I threw one of those today when I went through a rather deep puddle and splashed the filter. Scared me pretty good.

[CrankyOldMan]

Originally Posted by tooter

Now, that is one hell of a deal for only 44 bucks and free shipping!

It's well worth it, if only just to get a MAF section.

Agreed, it's a great deal for the tube. The rest looks like junk. Went ahead and got one.

[tooter]

And save the other pieces...
With careful cutting and straight silicone couplings you could create any custom shape intake you wanted.

edit: Just checked the seller's feedback and couldn't find any negatives for that intake. And they sell at least 2 of them a month.