just throwing a curve ball in this debate. this i s from the new apr r1 dv

"Secondly, diaphragms do not require the periodic greasing that piston-based valves do. Piston-based valves must be qreased periodically (usually every year or sooner), requiring removing the valve from the car, disassembling and reassembling the valve "

has anyone had to regrease their forge or bailey dv's???? or clean then up internally?

In general I think piston valves replaced diaphragms because of increased reliability. Diaphraghms my not need greasing but they do split and require replacing.

Forge or willing to supply a maint kit FOC, I can't see then that it becomes a problem having to service the valve.

I tried this a 5 or 6 years back bailey vs forge on my old stage 3 saffy cossie (334bhp)..

Baiscally for those of you who no Quedgeley.. just off the motorway jnct 12 there is a roundabout with mc'ds booting it round there up to the first bridge(just past quedg turning) i got 125mph with bailey and about 130 with the forge... obviously gonna be slightly out as could of took roundabout differant but seemed to be better with the Forge..

Running a Forge Recurc on the octy which Kev(Forge) kindly serviced a few weeks back... seems a noticable differance wasnt that bad though(been on car for 4 yrs odd)

hmm interesting. i wonder why APR are releasing a diaphram replacement then saying its better than pistons if everyone else knows that pistons are more reliable..

Forge used to do a diaphragm DV but withdrew it due to a number of failures, and they've been making DV's ALOT longer than APR. :rubchin:

i think someone needs to tell apr that then lol