British-Cars.org

Welcome to the DMR Site for British Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGB GT V8 Factory Originals Technical - Demon Carb

Anyone have any experience with the Barry Grant Road Demon 525 carb on a 3.9 or other BOP engine?
David Gable

IMHO I believe it is too big unless you are extremely modified. The Barry Grant Demon carbs claim flow #'s higher then their size would indicate. For example my friend has a 68 AMX 390 that had a Holly 700 cmf double pumper (The 700 cmf carb was not too big for his application), he replaced it with a Demon 650 and the car runs better all across the RPM range. He did some extensive talking with the tech's at Demon...check with them.
Michael S. Domanowski

I am using the Demon 525 on my 3.4 V6 Due to the manifold and our manifold top design, it had to be re-jetted from stock jetting to .070 did not wanted to modified the air bleeds etc. Great carb.

For those who do not have experience tuning carbs then stay with the carter or Holley 390 cfm There is more than jets that have to be tune.
Bill Guzman

Thanks Bill. I bought an Edelbrock 500 today.
David

This thread was discussed between 07/12/2006 and 10/12/2006

MG MGB GT V8 Factory Originals Technical index

This thread is from the archives. Join this live forum now