Head Feed vs. OFH feed

[EclipticalGS]

Well, I'm about to get my 6-bolt block with the 7-bolt oil pump mod (crank sensor) and also the 7-bolt head was machined onto the 6-bolt block (keeping cam sensor) so no wiring issued when install, just the shaving of the motor mount which im not sure where to shave it yet, but,

The motor is having a balance shaft removal kit, and the oil relief will not be ported.

I have a FP-16G and I need to know if I should run it straight from the oil filter housing like it was when i bought the car, or run it from the head.

Or if i need a fitting to decrease pressure from the OFH.

Any input would help, thanks!

 

[lacroixdp]

You either need a reducer orifice or you need to run the oil feed off the head. I'd go from the head, IMHO.

 

[scooter24]

you can run of the head but also dont forget to run a filter on that feed line as well.

 

[jjrock5]

16G turbos are run from the head typically. Jusmx (or something like that) will probably reply later.

 

[EclipticalGS]

argh, where from the head? And when i run from the head do i need any reducer fitting? or do i just need a filter in-line with my stainless braided feed line?

also, when running from the head, is an oil catch can necessary for DD? how does that work.

thanks!

 

[jrohner]

Just get a stock 1G feed line and you're good to go from the head. On the side you'll see a bolt with a pretty good size head on it, that's just a plug that you take out and replace with a banjo bolt and the line.

 

[324vr4]

I had a similar inquiry; I have it coming off my OFH and its working great right now...I too have the FP e316g and I was getting smoke out the back when I got into boost...so if that happens stop driving your car until you get an oil restrictor...I picked one up for cheap and it dropped my oil pressure down to within specs and now no smoke and the oil pressures are more OE standard which will retain the FP turbo's warranty and longevity. Here's the piece I am using without any problems and only took 7 min to install: TURBO OIL RESTRICTOR AN-4 BILLET ALUMINUM:eBay Motors (item 250434511919 end time Sep-26-09 17:48:46 PDT)

Installed it on feed banjo and all it does is bring out the feed line .75"....hope this helps...but either way you go, get the oil pressures down between 15-20psi at idle and no more than 75psi at WOT...Good luck!

 

[EclipticalGS]

Cool, thanks, Id also love to know if anything will change now that i have a 7-bolt head on a 6-bolt block. I mean, the only thing i know i have to do is grind down the part on the motor mount, but what do I use for auto-tensioner and the bearing pulley? 1G, or 2g?

Lastly, If anyone knows about the balance shaft removal, do i need to run a oil catch can from the VC? should i delete the vac line going from the valve cover to the intake, and just filter it?

thanks!

 

[JusMX141]

I have a FP-16G and I need to know if I should run it straight from the oil filter housing like it was when i bought the car, or run it from the head.

If you're keeping the boost under 25psi or so, feed from the head with a 1G line.

If you're going to run this turbo into the ground, you'll want to feed from the filter housing with a .075" restrictor. The idea here is to give the turbo a little more pressure for the extreme loads the shaft and thrust bearing will be seeing, while not over-oiling the turbo.

Never feed a MHI turbo from the filter housing without a restrictor or you're asking for trouble.

 

[EclipticalGS]

Will i have troubles feeding from the head if i have a 7-bolt head machined onto a 6-bolt block? Is there any reason at all? If so, ill just buy the resrictor and keep it from the OFH, The turbo was great though, boosted well, didnt smoke out of the center section or the tail pipe, the only smoke came from the tailpipe when i through a connecting rod.

I still have to tap my j-pipe for wastegate boost signal on my internal gate. Then I guess i'll be close to done, this whole oil thing just chills me bacause the car blew up on the way home and everythings just a mess. I mean, apparently i was driving with a whole in my oil pan, 50 psi oil pressure on my gauge and I was getting boost but the car wasnt accelerating so the rod went and my oil lgiht never came on, until 1 minute after i was dead on the side of the road.

 

[jjrock5]

If you're keeping the boost under 25psi or so, feed from the head with a 1G line.

If you're going to run this turbo into the ground, you'll want to feed from the filter housing with a .075" restrictor. The idea here is to give the turbo a little more pressure for the extreme loads the shaft and thrust bearing will be seeing, while not over-oiling the turbo.

Never feed a MHI turbo from the filter housing without a restrictor or you're asking for trouble.

See OP, I told ya, here he is!! haha

 

[JusMX141]

Will i have troubles feeding from the head if i have a 7-bolt head machined onto a 6-bolt block?

Probably not; if the head's surface was decked you might want to look into doing this if the head is still off the car:

http://www.dsmtuners.com/forums/newbie-forum/341028-4g63t-head-oil-port-mod.html