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Upgrading to 38/38 DGES - Need to change base plate?

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davus
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2013/12/18 18:31:25 (permalink)
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Upgrading to 38/38 DGES - Need to change base plate?

Hi All,
 
So following on from some of my previous posts about upgrading to the 38/38 DGES carby, I have a question.
 
The standard base plate seemingly may be restrictive if used with this carby?. As can be seen by the below pictures, the primary hole in the plate measures 38mm, which is fine, but the secondary hole only measure 32mm, effectively restricting the flow of the second barrel of the 38 carby.
 

 

 

 
What are people thoughts on this?. Is there are standard replacement people use?.
 
Dave
 
#1


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    Knightime
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/18 19:08:16 (permalink)
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    Throw it in the bin.
    #2
    Drewdog
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/18 19:22:25 (permalink)
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    Bore it out with a file or drill?????

    GT Cortina Project "The Ugly Duckling"
    #3

    davus
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/18 20:45:44 (permalink)
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    Knightime
    Throw it in the bin.


    Thanks knightime. That answers the question of what to do with this one, but what should I put in its stead?


    Drewdog
    Bore it out with a file or drill?????


    That could be an option. Unless there is a plate of sorts already available?

    Dave
    #4
    Matt75
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/18 20:49:31 (permalink)
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    Chuck it.  You don't need it at all.
     
    Matt

     
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    #5
    davus
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/18 21:39:03 (permalink)
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    So just a gasket in there then and that's all?.....
    #6

    Flighter
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/18 23:59:01 (permalink)
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    It also serves as an insulator, which is beneficial.  I'd bore it out in preference to binning it.

    WTB: Recaro seat - any condition considered
     
     
    #7
    RS 2000
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/19 01:29:34 (permalink)
    +1 (1)
    Definitely keep the insulator, just open it up with a die grinder to suit. Also I reckon xe/xf falcon carby insulator might be already big enough, go past a carby place and they should have a pile of these.....
     
    cheers
    post edited by RS 2000 - 2013/12/19 01:56:53

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    #8
    davus
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/19 09:55:19 (permalink)
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    I think I might keep it based on the insulation point.
     
    I pulled out my dremel this morning and started opening the hole using another spare manifold I have as a guide. Seems to be working quite well.
     
    Dave
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    rallyrs
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/20 09:55:44 (permalink)
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    Dremels the go. The plates primarily there to stop/slow heat transfer from the manifold evaporating your fuel after engine stop.

    mk2 2dr club car. pinto, stage 1 valves, rl31 cam, gsxr 600 tb running  MS2 extra. :-)))
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    Flighter
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/20 10:21:59 (permalink)
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    I think the main benefit from the insulating spacer is to help prevent vapour lock; reducing fuel evaporation is a bonus.

    WTB: Recaro seat - any condition considered
     
     
    #11
    davus
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    Re: Upgrading to 38/38 DGES - Need to change base plate? 2013/12/20 22:33:17 (permalink)
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    the dremel with a bit of time and a grinding wheel took care of it no problems.
     
    Hole is now opened up and plate back in place.
     
    Thanks to all for the input and advice.
     
    Dave
    #12
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