r0ma

hello... I want to put a aftermarket fuel pressure regulator on my FD.... I understand the stock unit is on the back of the secondary rail..... what is the device at the front of the primary rail? it looks very similar to a stock fpr??? do i leave this in place?

also I have got rid of the twins and solenoids for a single upgrade. where is the best place to run the vac hose for the fpr.... the UIM?

How about the vac line for the oil injectors?

For the oil feed line, do I remove the stock brass connector and put a new line from the block to the turbo? as the stock feed comes right out where the turbo will sit and almost touches the exhaust housing.

Oil drain, I beleive I need an adapter, any suggestions where to buy?

thanks everyone.

Flying_solo

iTrader: (7)

I can answer the first question. The one in the back of your rail that has a vacuum line is the FPR, the one in the front with no vacuum line is the Fuel Pulsation Damper (FPD).

boosted414

iTrader: (30)

If youre going single you probably dont want to run the side feed stock rails anyway. Upgrade to FFE or CJM.

billyboy

Vacuum source can be anywhere post throttle body, should be a shiteload of vacant nipples post conversion....and nearest one to your relocated fpr will more than likely work best.

If you want to retain the oil injectors vacuum source for when they die, not too hard to do the same as stock and either turn up and weld on an appropriate sized nipple on an intake, or drill and tap the housing if you decide to mount a pod on the turbo intake - yuk. Some here don't do anything with them at all.

Oil feed isn't brass, it's gold passivated zinc plated steel. Should be bendable to fit virtually any turbo without risk of fracture, need a 14 x 1.5 male to -4 AN male adaptor, plus the usual assortment of hose and fittings after that. If you don't do the usual blue red fitting thing, Pirtek/Enzed/hydraulics joint should be able to make up lines easy enough.

Oil drain, motorsports connections has them in -10....2" centres on the bolt holes?? The usual chinese copies, proflow/aeroflow, should have them too perhaps. Normally impossible to access the matching fitting without a crowsfoot spanner and lots of swearing I find. You'd need another fitting welded onto the standoff pipe at the engine, plus the hose, yada, yada.

ondabirdhouse

iTrader: (26)

running oil injectors with a single turbo can be a tricky situation if your aftermarket ecu can't control it. when you upgrade to a larger turbo you generally upgrade the fuel system to support it and when you do it changes the amount of oil needed to lubricate the combustion chamber. Most people who do single turbo conversions either
1 - delete the OMP + injectors and run 2 stroke pre-mix in the gas tank or
2 - they use a combination of the OMP and pre-mix.

Upgrading to single turbo and NOT doing one of the above options is a sure fire way to blow your engine very quickly.
just something to consider/think about.

r0ma

Thanks Guys, that has cleared a few things up for me.......

When upgrading the secondary injectors there is a rubber gromet/o-ring in the housing, does this stay when putting the aftermarket injectors in or take it out?

ondabirdhouse

iTrader: (26)

most likely you will get new ones with the aftermarket injectors you buy, which might also come with injector adapter hats like the ones in the pic.

IRPerformance

iTrader: (41)

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