These bad boys turned up this week from the States - 62mm billet throttle bodies designed and manufactured by Robert Bastian.

They are fully CNC machined from billet aluminium and are beautifully made. They have proper shaft seals (no leaks under boost)

and the butterflies are a perfect fit when closed. They need the return springs and stops transferred from OEM throttle bodies and

the intake manifold will need porting to the larger 62mm bore. They will be installed along with AshSpec SMICs and 2.5" IC pipe

work in due course.

 

 

 

Held up to bright lighting:

 

 

By way of illustration, this photo shows another car with the 62mm throttle bodies fitted (along with AshSpec IC pipe work):

 

Very nice. How much do they cost to get to us in the UK?

Very nice Andrew....:cool:

Very nice. How much do they cost to get to us in the UK?

 

$600 plus shipping plus import taxes... I bought mine from the first production run which Robert sold

directly to customers. I don't know how many (if any) are still unsold.

Those are lovely.

Very nice Andrew, all most a shame to fit them to the car, lol

Nice workmanship :yes:

Andy, now you've been running these for a while, any feedback?

Andy, now you've been running these for a while, any feedback?

 

They're still in his garage on the workbench! :lol:

Andrew!!!!! Shame on you!!!

They will be installed along with AshSpec SMICs and 2.5" IC pipe work in due course.

 

Andy, now you've been running these for a while, any feedback?

 

Yes, until I have the AshSpec stuff they are expensive paperweights!

:whistling:Maybe it's time to produce some in Uk

AndreWG it is time to mount the throttle body!!:lol:

 

Remember to space TPS, with thicknesses washer in the box.

 

and adjust the same simultaneous movement of both. with no game.

 

this guide can be useful.

 

http://www.twinturbo.net/nissan/300zx/forums/main/view/1038832/FAQ-Throttle-body-spring-assembly-photo-guide.html

Remember to space TPS, with thicknesses washer in the box.

 

I didn't get any washers with the TBs for the TPS. Got a photo of them installed?

i would like a set of them to. were are they listed for sale

i would like a set of them to. were are they listed for sale

 

https://conceptzperformance.com/robz-billet-aluminum-62mm-upgraded-throttle-body-set-nissan-300zx-90-96-z32-rz-16118-xx-kt_p_19290.php

tonight I put pictures.

https://conceptzperformance.com/robz-billet-aluminum-62mm-upgraded-throttle-body-set-nissan-300zx-90-96-z32-rz-16118-xx-kt_p_19290.php

 

super thank you will order some in the next few days. so i under stand i need to make the opening on the manifold a bit wider do that bolt rite up what gaskets do you need it it all plug and play apart from the wider opening in on he manifold

sorry just found the gaskets. i know its best t0 ugrade all the pipe work to 2.5, but is that a way of keep the stock pipe work for now and just changing the the 2 top throttle body pipes ? so you can use the bigger throttle body with the oem pipe work

You will need to transfer the spindle parts from stock throttle bodies (plus the new replacement parts that come with

the kit from CZP). Picture below shows what's involved.

 

 

You will need to remove the plenum material you can see in the picture to match the new 62mm diameter.

 

 

There is really no benefit in having 62mm TB's with stock pipework as they are the finishing elements to a complete

2.5" intake system and 2.5" IC's.

Edited June 23, 20169 yr by AndrewG

You will need to transfer the spindle parts from stock throttle bodies (plus the new replacement parts that come with

the kit from CZP). Picture below shows what's involved.

 

[ATTACH=CONFIG]98616[/ATTACH]

 

You will need to remove the plenum material you can see in the picture to match the new 62mm diameter.

 

[ATTACH=CONFIG]98617[/ATTACH]

 

There is really no benefit in having 62mm TB's with stock pipework as they are the finishing elements to a complete

2.5" intake system and 2.5" IC's.

 

my manifold is coming off next week so am thinking should i uprade to 2.5 while its all off. are you using duel maff set up with this ?

I will be when they are fitted. If your manifold is coming off you could open up the throttle mountings to 62mm and refit

the stock TB's. Then when you are ready do the full 2.5" pipework and IC's install plus 62mm TB's in one go.

the manifold am using is already off as its getting powder coated as we speak the then removing the one on the car for the powder coated one, but am thinking the would it be easy to fit the bigger piping when the manifold if off ? the cars in paint so the bumpers of to will see how am fixed for cash mite just upgrade the lot now while its in bits

Are these still available.

This is 9 years ago, seriously doubt it is.

The website actually says discontinued now.

The first run was done many years ago which I bought from. There was a second RobZ run planned which Aff68 on here was involved in but I don't know what became of that.

Polar engineering in the US are/were also making their version:

https://www.polarengineering.co/product-page/nissan-z32-300zx-billet-throttle-bodies-62mm

Edited May 12May 12 by AndrewG