unnatrl

iTrader: (1)

I have a LQ4 swapped into my 95 BMW and I'm using aftermarket fuel rails. The inlets to both rails are at the front, outlets at the rear. The driver side fuel rail doesn't have enough clearance to run an AN to NPT to 90 degree an fitting (hits firewall/ heater blower cover.

I have been able to get an NPT to brass "T" block to fit. It also allows both return lines to "T" together and have one outlet. I don't think its optimal for flow, but will it work OK? Im trying to stop over thinking this, it hasn't been easy! Any experiences, ideas and opinions are appreciated.

Blown06

iTrader: (32)

Will it work? Yes

Could it be better? Yes

I'm certain with a little help you could do something different. Post pics so we can see how much room you got.

unnatrl

iTrader: (1)

There is a little more room between the fitting and the firewall than it looks, but not much. A 3/8 Npt to -8 straight adapter with a 90* -8 elbow absolutely will not fit.

Old Geezer

iTrader: (3)

A pipe/AN tee that would work better than that brass thing. Available in blue and black. This is the -8 x 3/8npt pt # 482508.
Also, they have a low profile 90* w/ pipe thds. #199066
U have room to cut off the rail, and extend the threads in further?

unnatrl

iTrader: (1)

Thanks for the heads up. There is a little bit of room to shorten the rail, but it's not significant. If I use an AN 90* it has to be compatible with the Teflon lined hose. I have been unsuccessful in finding one that has NPT on the side normally associated with threading on to the AN adapter.

Blown06

iTrader: (32)

Trim the fuel rail down and re-thread it. Problem solved.

unnatrl

iTrader: (1)

I wish. There isn't much between the #7 injector and the end of the rail. 3/8 of an inch is about all the clearance I can gain. It would help, but I'm not sure that its enough all by itself.

Old Geezer

iTrader: (3)

pt # 499166 is a 90*swivel/-6/3/8npt. Using a PTFE strait on the hose will work.

That npt on the rails is something I've never understood...

Old Geezer

iTrader: (3)

pt # 499166 is a 90*swivel/-6/3/8npt. [Pge 28, in the Fragola catalog.] Using a PTFE strait on the hose will work.

That npt on the rails is something I've never understood. I've had several come to the shop, that leaked, split the rail, had to be welded in...

Blown06

iTrader: (32)

It's as if you want to fail.

There is room to gain 1/2" with trimming. Then you could get creative and weld the fitting into the rail flush so that it only sticks out as far as it has to.

Send me the rail and I'll fix it up for you. Unless you wanna keep on worrying and talking about it.

unnatrl

iTrader: (1)

Thanks for the offer. I'm not worrying about it, merely figuring out the best solution. Welding a fitting on after trimming the rail would probably do the trick.

boostedc20

I think Earl's and Aeromotive makes O Ring Boss to -6 or-8 an 90 degree elbows. Might be able to run a crossover line with them.