Omega Owners Forum

Chat Area => General Car Chat => Topic started by: Sheepie on 19 October 2010, 23:40:07

Title: Is there any interest in enlarged throttle bodies?
Post by: Sheepie on 19 October 2010, 23:40:07

Ive done a few vec tb's now and gauging interest on if any of you would be interested in these for your moggys i will be doing 1 for myself for when mine goes back on the road .

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: feeutfo on 19 October 2010, 23:51:11

According to oof legend the throttle body is not restrictive anyway, so nout to be gained....

Exhaust manifolds on the other hand....

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: Sheepie on 19 October 2010, 23:58:41

I dont think they are restrictive mate although they can be enlarged so better/more airflow can be achived

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: feeutfo on 20 October 2010, 00:15:05

But how? If it's not restricting air flow in the first place? Could be the size of a dustbin, the engine  won't flow any more air until the exhaust manifold is changed from a plenum type to a down pipe type apparently? Which will give a more peaky revy delivery.

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: 2woody on 20 October 2010, 10:57:21

Quote

Ive done a few vec tb's now and gauging interest on if any of you would be interested in these for your moggys i will be doing 1 for myself for when mine goes back on the road .

got dyno sheet before & after ?

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: david036 on 20 October 2010, 16:34:59

Would be interesting to see the test results!!

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: Sheepie on 20 October 2010, 17:23:29

Will be doing 1 for mine when i get it back on the road .
This is what courtenay sport have to say
http://www.courtenaysport.co.uk/index.php?act=viewDoc&docId=21

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: Kevin Wood on 20 October 2010, 17:37:38

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Will be doing 1 for mine when i get it back on the road .
This is what courtenay sport have to say
http://www.courtenaysport.co.uk/index.php?act=viewDoc&docId=21

Well, they are Vectra throttle bodies in the first place, and that engine has a completely different induction system. "6-8 BHP" from an improved throttle body?   :-?

Kevin

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: TheBoy on 20 October 2010, 18:56:32

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Will be doing 1 for mine when i get it back on the road .
This is what courtenay sport have to say
http://www.courtenaysport.co.uk/index.php?act=viewDoc&docId=21

And anybody would take any notice of an up-and-over garage door outfit like Courtney :o

They'll claim higher FPRs make a difference next. Oh, yes, the idiots do ;)

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: feeutfo on 20 October 2010, 19:13:29

So how much bigger is the internal diameter exactly? Throttle body wall is only 2mill or so thick?  :-?

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: TheBoy on 20 October 2010, 19:17:51

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So how much bigger is the internal diameter exactly? Throttle body wall is only 2mill or so thick?  :-?

You know as well as me, any perceived gains, like 'performance' air filters on the Omega, are placebo effect....

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: feeutfo on 20 October 2010, 19:39:07

Quote

Quote

So how much bigger is the internal diameter exactly? Throttle body wall is only 2mill or so thick?  :-?

You know as well as me, any perceived gains, like 'performance' air filters on the Omega, are placebo effect....

Many a tuning "wallet emptying" house  built on that same effect.

Better performance from an oil change....

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: Sheepie on 20 October 2010, 19:55:49

Quote

Quote

Will be doing 1 for mine when i get it back on the road .
This is what courtenay sport have to say
http://www.courtenaysport.co.uk/index.php?act=viewDoc&docId=21

Well, they are Vectra throttle bodies in the first place, and that engine has a completely different induction system. "6-8 BHP" from an improved throttle body?   :-?

Kevin

They actually do increase on the vectra and i have a rr of this (will search my hdd for it) i gained 7bhp 5 touques and a better power graph in total on my 3l vectra

Title: Re: Is there any interest in enlarged throttle bodies?
Post by: Sheepie on 20 October 2010, 19:57:34

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So how much bigger is the internal diameter exactly? Throttle body wall is only 2mill or so thick?  :-?

The wall is only 2mm but if you actuall measure the throat top to the base you will see the base is around 4mm smaller