s12 in a lotus 7 kit car

[wacomuk]

Originally Posted by Pukkasilvia

what fuel pump has been fitted to the car?

i would check this first. The standard fuel reg is non adjustable, the fuel pressure rises accordance with the inlet manifold pressure, if the fuel reg isn't receiving correct manifold pressure the fuel pressure will be affected (lower)(idle fuel pressure is 32psi from memory) check for cracked pipes

the standard reg could be past its best, try a FSE adjustable fuel reg or something similar

silviagod has had good results will the cheap jap ebay ones


are you the guy off locostbuilders??

[graememk]

useing the original fuel pump,dont know what psi it is.

[wacomuk]

using the original silvia pump or kitcar pump?

[graememk]

silvia pump, silvia reg and rail and injectors.

[wacomuk]

pump and or reg could be past there best

someone on hear has an uprated silvia pump for sale

[graememk]

yes i'm graeme mk off locostbuilders.co.uk

Originally Posted by wacomuk

i would check this first. The standard fuel reg is non adjustable, the fuel pressure rises accordance with the inlet manifold pressure, if the fuel reg isn't receiving correct manifold pressure the fuel pressure will be affected (lower)(idle fuel pressure is 32psi from memory) check for cracked pipes

the standard reg could be past its best, try a FSE adjustable fuel reg or something similar

silviagod has had good results will the cheap jap ebay ones


are you the guy off locostbuilders??

[PukkaSilvia]

is the fuel pump wired via a relay? Also i may be wrong but did i read somewhere that the standard ecu map for the s12 runs the injectors at upto 136%?

[graememk]

i'm not using the silvia ecu, i'm using megasquirt much easier for mapping.

pump wired direct to dedicated relay.