Fuel starvation on RH corners, 28/36 DCD Weber

Post any technical questions or queries here.
Post Reply
SMOKE GREY
1275 Cooper S
Posts: 1552
Joined: Thu Jun 24, 2010 7:31 pm
Location: Sunny Lancashire
Been thanked: 2 times

Fuel starvation on RH corners, 28/36 DCD Weber

Post by SMOKE GREY »

Going to have a play round with float level height's tonight, but anyone here had same problem :?: Using a Derrington inlet manifold.
User avatar
mk1rally
850 Super
Posts: 231
Joined: Tue Oct 26, 2010 4:26 pm

Re: Fuel starvation on RH corners, 28/36 DCD Weber

Post by mk1rally »

Could you somehow baffle the float chamber? looking for my Weber book now but if I remember correctly, DCD stuff is a bit thin on the ground. The DGV is it's progression, I wonder if it's the same in these situaitions?
Smiffy
998 Cooper
Posts: 702
Joined: Fri Jun 25, 2010 10:33 am
Been thanked: 2 times

Re: Fuel starvation on RH corners, 28/36 DCD Weber

Post by Smiffy »

mk1rally wrote:The DGV is it's progression
The DGV is a normal twin choke carb, both chokes open simultaneously. Unlike the DCD which is a progressive twin choke carb, with these the primary choke opens upto two thirds throttle and then the secondary choke starts to opens.
Steve A
998 Cooper
Posts: 275
Joined: Thu Aug 12, 2010 10:23 pm

Re: Fuel starvation on RH corners, 28/36 DCD Weber

Post by Steve A »

If this is a twin choke downdraft weber like i had on my old mk2 then yes i had the same problem. It used to un-nerve me when cornering hard. The new owner is a member of thisforum and i think he has now changed to twin su's and the car performs much better i beleive he may add some more info if he reads this regards Steve
Smiffy
998 Cooper
Posts: 702
Joined: Fri Jun 25, 2010 10:33 am
Been thanked: 2 times

Re: Fuel starvation on RH corners, 28/36 DCD Weber

Post by Smiffy »

I think it depends on the manifold, coz I never had any problems with mine in corners. Not familiar with the Derrington manifold, does this manifold place the carb at right angles to the bores ?
My manifold has the chokes parallel to the bores, also note that the float chamber should be in front of the chokes with this type of manifold. So under acceleration the any surge causes the fuel to flow towards said chokes.
Good for 89 bananas and easily outperforms the HIF44.
davidnutland
998 Cooper
Posts: 635
Joined: Thu Sep 02, 2010 9:48 pm
Location: Dorset
Been thanked: 2 times

Re: Fuel starvation on RH corners, 28/36 DCD Weber

Post by davidnutland »

Oh yes same problem when autotesting years ago engine would cut out when handbraking and reverse spin flicks, sell it and buy a side draught of some kind.

David
Post Reply