A proper screwed fitting is always going to be better than a hosetail or plain
tube end with clamps. But if you do a proper job, two hose clamps will work OK.
This is an ebay external fuel pump kit...
They only use one clamp to hold the hose onto the hard line. The bump on the
end of the fitting is more to stop the hose slipping off, rather than to stop leaks.
The pressure side is the one to be careful with. Make sure the hose is EFI rated
and a nice tight fit on the hard line. CRC or similar makes it easier to slide on.
For the electrical side you should use a failsafe system as used in all 4AGE
powered AE86 cars. This is designed to stop your pump continuing to run after
you crash and you are trapped in the wreckage !!! Anything less is at your own
risk. The following sketch shows how the GTS factory AFM system works...
The absolute minimum you should have is shown in the following sketch. This
does not have the failsafe feature, and will not stop the pump running if the
engine stalls in a crash situation.
You can get a 15amp 4-pin relay (don't need 5-pin) with a blade fuse already
built into the relay. Hook the hot side up to the battery and run the relay output
to the pump. Take a control signal from a switched power supply such as the i
coil positive and ground the coil to the chassis.
I recommend that you grab a Circuit Opening Relay and wire it as per the first
diagram using the FC and STA signals. If you are transferring the wiring over
from a GTS donor, most of the wiring will already be in the car
Cheers... jondee86