Holden202T wrote:i dont see why the lift pump needs to be turned off other than to save a few amps of load ?
the whole idea of the surge tank is to keep it full all the time so you never run out of fuel, so to do that you need the lift pump running all the time and it just returns back to the main tank once its full...... that line also stops the surge tank getting pressurised or vacuumed.
While the amp drawer component would be favourable (even if only a little) the two main reasons are,
1. so that you dont have ethanol/methanol remaining in your surge tank at the end of your day.
2. so that you have independant cutoffs with your specific pumps and that way you only need to worry about cutting fuel to the main pumps.
When I ran the suzi 800 it was about individual cuts. it is far easier to kill one circuit than the whole lot. (Main reason is the power steer pump I designed in the suzi was driven off electrical motor to not have it preload the crank. Car was a amazing bit of kit and lost of fun, but then I found corners and the suzi would not do corners well. (picture similar sizing to delco's starlet. running a magna 2.6L motor EFI with turbo. No weight + heaps of power = lots of fun with brown pants occasionally.)
Your firewall and trans tunnel look very well designed. I remember doing this type of cad work when designing ducting etc at uni (wow that was a long time ago) Looks like a piece of origami and is beautiful well done Holden202T
Kind regards
oldn64
