Throttle Body Photo

[Ollie133cup]

Could someone if they have a spare 5 minutes upload a photo of the Black cover on the Throttlebody , I need the details of of it. I would check my self but im away offshore ....

I will be eternally grateful

 

[benmc]

Ill get one tomorrow if pos what's you after like? Part no or ...

 

[singlespeed]

Its readable on this pic
https://farm4.staticflickr.com/3269/5822036890_6142a574f4_o_d.jpg

 

[Ollie133cup]

Perfect , thanks Neil.

And thanks ben.

 

[Oliver]

It´s the same as in the Clio RS197 ....

 

[benmc]

Yea and ph2 mk2 1*2 bud

 

[Ollie133cup]

Cool , good to know.

Trying to get a spare which i can butcher :shock:

 

[Oliver]

To port it? If it´s enough for the 197 than for the 1.6RS it, too... :lol:

 

[Ollie133cup]

No no , im adapting the servo motor to operate my Itbs to keep the dbw system...

See my progress thread...

 

[Oliver]

Sorry...

 

[singlespeed]

Sorry...

You could still remove the cast/machined steps without enlarging the throttle plate diameter. As said, 60mm is plenty large enough for a 133.

Not realy a problem for Ollie I hope its workable

 

[benmc]

The step is there for a reason though

 

[singlespeed]

The step is there for a reason though

I thought it was just to leave enough metal for when machining the bore to the right size to take the butterfly. The likes of Jenvey bodies etc don't have a step and I think mines been ok with the step smothed out.

whats the other reason(s)?

 

[benmc]

I don't think make too much difference but its 100% tere for a reason I can't remember the name of the effect sure it begins with a V though some guy brought it up when we were all getting ours done to 64mm on The old 197

 

[mazmaz]

ventury?


Me i think it's just because it cost to much money to make it properly

 

[singlespeed]

carbs use a venturi to create a low pressure across the fuel nozels, which then draws the fuel from the float chamber. So, yes theres a reason for a narrowing, but it could be a smooth narrowing, an angled hump or a step .

All a TB needs to do is regulate the airflow as the fuel is metered and added afterwards.

 

[Oliver]

....


Me i think it's just because it cost to much money to make it properly

I think so, too. There will be casted raw parts that e.g. cover a bore from 60mm to 64mm and then these parts are drilled to their final diameter and nobody takes care for the step because it´s additional time in the production process and so additional costs. The effect removing it is not worth this money, but I think if it´s removed it won´t be a negative effect anyway.

 

[singlespeed]

Its only a small step, with one either side of the butterfly plate

After some work with the Dremel and sanding drum, followed by some 500 grit paper to remove the lip