Post Reply
User avatar
Jose_76
Gold
Gold
Posts: 193
Joined: Thu Mar 10, 2005 5:56 am
Location: Murcia - Spain

Guillotines

Post by Jose_76 »

Has any body fitted guillotines instead of the regular butterfly-throttle bodies? They are supposed to be better at full throttle as they can't cause any turbulence on the air, but they are also more difficult to build.
'84 Red GTV6 3.0
User avatar
matt
Platinum
Platinum
Posts: 259
Joined: Mon Apr 18, 2005 9:19 pm
Location: HK

Post by matt »

Check out the Beninca site, their awsome 230Bhp N/A 2.0 Twin spark uses them!
User avatar
Jose_76
Gold
Gold
Posts: 193
Joined: Thu Mar 10, 2005 5:56 am
Location: Murcia - Spain

Post by Jose_76 »

I can't find a good picture of at at Beninca site. Anyway, I'm interested in a possible fitting on a V6, anybody has done it before? We have been thinking about doing so and have built some wood stuff to take measures, but I'd like to ask someone who has already done it and see some pics.
'84 Red GTV6 3.0
User avatar
TS_turbo
Gold
Gold
Posts: 185
Joined: Fri Dec 24, 2004 10:06 am
Location: Bulgaria
Contact:

Post by TS_turbo »

:) sorry for late post, but if someone have interest ...personaly i dont like it ! even F1 engineers used standart buterfly throttles :wink: ...
Attachments
slides-1.jpg
slides-1.jpg (80.16 KiB) Viewed 7735 times
slides-2.jpg
slides-2.jpg (103.37 KiB) Viewed 7735 times
slides-8.jpg
slides-8.jpg (152.14 KiB) Viewed 7735 times
slide-throttle-rev11.jpg
slide-throttle-rev11.jpg (30.94 KiB) Viewed 7735 times
User avatar
tectoteam
Gold
Gold
Posts: 188
Joined: Thu Dec 16, 2004 11:11 am
Location: south FRANCE

Post by tectoteam »

anybody had feeling about these....
because like in the cad pic above it sounds very cheap to build...

its really that we can see these just a little time... :?
2 stroke addict
User avatar
Mats
Verde
Verde
Posts: 4059
Joined: Mon Nov 29, 2004 12:26 am
Location: Gothenburg, Sweden
Contact:

Post by Mats »

As i understand it they are absolutely crap for anything but full throttle. They are also difficult to design since you will have a huge problem with the engine vacuum acting on the plate and making them stick... :shock:
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-

GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
User avatar
sh0rtlife
Verde
Verde
Posts: 536
Joined: Fri Jun 02, 2006 7:45 am
Location: portland, oregon, USA

Post by sh0rtlife »

a set of nylon slides on top and bottom would cure any stickyness..but i cant see getting a good seal out of it
User avatar
TS_turbo
Gold
Gold
Posts: 185
Joined: Fri Dec 24, 2004 10:06 am
Location: Bulgaria
Contact:

Post by TS_turbo »

useful ONLY in WOT=racing :D
User avatar
Mats
Verde
Verde
Posts: 4059
Joined: Mon Nov 29, 2004 12:26 am
Location: Gothenburg, Sweden
Contact:

Post by Mats »

sh0rtlife wrote:a set of nylon slides on top and bottom would cure any stickyness..but i cant see getting a good seal out of it
You realize you need a return spring from the depths of hell to make it work?
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-

GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
tomp
Gold
Gold
Posts: 97
Joined: Thu Jun 30, 2005 3:22 pm
Location: central texas
Contact:

Post by tomp »

This type of throttle has been around for a long time. they used to use small roller bearings to prevent engine vacum from jamming the slide but they were still vulnerable to dirt and normal intake tract buildup. On the other hand lots of motorcycle racing carbs have flat slides and do just fine. Also, why would you locate the throttle in the high velocity section of the port? Why not move it further away from the valve when the port widens up and velocitys are lower?
-Tom P.
Post Reply