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Supplier for venturi restrictors (venturi sleeves)
Posted: Tue Dec 04, 2012 9:23 am
by Harv
I figure that when I find a great piece of kit or supplier, I should let others know. For those people who are considering twin (

) or triple (

) Stromberg carbs, an issue that may be faced is a lack of throttle response down low. This can be solved to some extent by fitting venturi restrictors. They are sleeves that shim down the carb thoat, giving sharper vacuum signal and hence better throttle response.
Most venturi sleeves used are mild steel, originally intended for the Holley 350 carb (the 7448 model), and are filed back to suit the Stromberg throat. An alternative is to purchase ready-to-go venturi sleeves from Frank Whitby (
mango235@yahoo.com.au). Frank puchases stainless steel restrictors, and sizes them to suit a given throat size. He can do the common grey motor 1 1/32", but also the larger 1 3/32" and 1 5/32". The restrictors Frank is selling are a great snug fit with no additional filing. I've found Frank to be a gentlemen to deal with - great communication and fast post. Would definitely reccomend his products.
Mods - can we add Frank to the Suppliers and Services thread please?
Cheers,
Harv.
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Tue Dec 04, 2012 10:20 am
by Blacky
HMMMM - I need a pair of them , does he have a phone number ?
I will add him tonight if one of the other mods doesnt do so in the meantime .......
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Tue Dec 04, 2012 3:04 pm
by choppedfan
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Tue Dec 04, 2012 11:49 pm
by Blacky
mine are ordered too

Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Mon Dec 17, 2012 8:36 am
by choppedfan
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Mon Dec 17, 2012 2:50 pm
by fingers
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
http://www.fbekholden.com/forum/viewtop ... ri#p178119
I bought 5 sleeves off Frank in August last year ........the prices seem to have jumped somewhat ......$5.00 each including post .....

......Fingers
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Mon Dec 17, 2012 4:53 pm
by choppedfan
fingers wrote:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
http://www.fbekholden.com/forum/viewtop ... ri#p178119
I bought 5 sleeves off Frank in August last year ........the prices seem to have jumped somewhat ......$5.00 each including post .....

......Fingers
Thats what happens when I get sidetracked

should have followed up back then............................
Got em now so its all good.
Mick

Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Sat May 22, 2021 6:48 pm
by Blackdog
Hi,
Just letting you know Frank sold me a pair of sleeves last year, still reasonably priced and a great guy to deal with. He also popped in the bag about 8 pages of old holden tuning tips and recipes on better mileage for the grey. All hand written!
Would recommend Frank and the sleeves.
Blackdog.
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Fri Jun 04, 2021 5:56 pm
by FJWALLY
I have a pair I was going to put in the twins but changed to blower first - free to a good home if will be utilized
Sent from my iPhone using Tapatalk Pro
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Fri Jun 04, 2021 6:52 pm
by ardiesse
Rob,
Yes, please.
Rob
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Sat Jun 05, 2021 8:32 am
by FJWALLY
ardiesse wrote: Fri Jun 04, 2021 6:52 pm
Shoot me a message with your details Rob - 0431163263
I'm away from the cave for a few days but should be able to find them before end of next week.
Cheers
Rob
Rob,
Yes, please.
Rob
Re: Supplier for venturi restrictors (venturi sleeves)
Posted: Sat Jun 05, 2021 8:58 am
by Harv
If anyone wants to play with venturi restrictors, but is not sure if they want to buy some, please let me know. I can loan you a set as part of the tuning kit:
http://www.fbekholden.com/forum/viewtop ... 25&t=17922
I've got three each of the 1 1/32”, 1 3/32” and 1 5/32” restrictors - should suit most of the Strommies that are going onto a grey, but may not capture the larger Torana/Bedford/post-HQ carbs.
Cheers,
Harv