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Posted by: Root_Werks May 20 2021, 01:56 PM

Tank is pulled and waiting for a set of SS lines from Tangerine Racing.

Since I'm running a 2.7 with CIS, I have that large inlet on the fuel pump (think 1/2"). PO used an adapter to upsize from the roughly 3/8"-1/2".

It's what I've done in the past myself and seems to be fine for a 170HP engine.

Anyone know of a fitting I can put directly to the tank that's 1/2"?

Would be nice to have that "garden" size hose supplying directly from the tank to the pump.

Checkec TR's site, didn't see anything.

Posted by: bdstone914 May 20 2021, 02:30 PM

QUOTE(Root_Werks @ May 20 2021, 12:56 PM)

Posted by: wonkipop May 21 2021, 02:53 AM

makes sense.

yes, all pumps are weak on suction, strong on pressure side.
the bigger the gravity feed the better, esp if you can fire it into a beast.

i noticed an interesting detail rebuilding the late bosch pump on my 1.8.
earlier wimp 4 cylinder cars had the bigger feed line that matched the bigger feed port on earlier pumps.
in 1.8 (with 009 pump) they shrank the feed port but left the fuel line big same as earlier cars. worked out the pump sucked enough anyway and why not give it as much as it could take.
ie - they were oversizing the feed line to the pump by 74 on the wimp engine.
go big for sure.

Posted by: Root_Werks May 21 2021, 12:10 PM

Exactly, there's a reason Porsche has a 11mm inlet on a flat 6 2.7 CIS fuel pump. Would be nice to match that 11mm size from tank to pump.