10-09-2015, 06:56 AM
Two types of cam plate found in the standard 9mm iirc matched to two different heads - same lift and duration but physical differences in size mean you can't mix them without snapping plungers or it not working.
The DI camplate in a transit pump for example has a higher lift but much shorter duration which is no good for the longer injection burn of IDI
You'll hear about the VW boys putting a higher lift camplate in their pumps, but they are all DI
If on the other hand you deffo have an IDI camplate that has a higher lift and same duration as standard, then get it whacked in and you'll have potential for getting more fuel in same injection window.
The DI camplate in a transit pump for example has a higher lift but much shorter duration which is no good for the longer injection burn of IDI
You'll hear about the VW boys putting a higher lift camplate in their pumps, but they are all DI
If on the other hand you deffo have an IDI camplate that has a higher lift and same duration as standard, then get it whacked in and you'll have potential for getting more fuel in same injection window.
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