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injector sizing?
Posted: Sun Sep 23, 2007 1:05 pm
by froggy
im building a single turbo 3.9 with 9.3 pistons to start with and moderate boost but ultimately i want to use 8.1 pistons and 1bar boost, my turbo is a holset hx35 and the efi is the old lucas flap system hardware running ms for fuel and ignition ,my problem is knowing which injectors to use ?
Posted: Sun Sep 23, 2007 4:25 pm
by katanaman
You have another problem in that the flapper inlet doesn't take the common sized injectors. I would have a search around and see what you can get to fit first as you might be better swapping the inlet for a hotwire one to get a huge choice of injectors.
Posted: Sun Sep 23, 2007 8:25 pm
by chodjinn
and i have a complete reconditioned hotwire manifold/plenum with injectors and fuel rail if ya interested
Posted: Sun Sep 23, 2007 9:52 pm
by Eliot
Something like 24 or 26Lb's should get you somewhere 300bhp. megasquirt site has an injector calculator from memory.
I happen to have a set of bosch 26lb'ers hi impedance for £200 - need to double check the flow rate though.
As kataman says, you will need the later hotwire base to use them though.
Posted: Mon Sep 24, 2007 5:36 pm
by stevieturbo
Get the hotwire manifold and fuel rails, and buy a set of Ford SVO Bosch green 42lb's off ebay.com
Job done, and you wont need to worry about running out of injector for a good while, and they are pretty good value.
Posted: Mon Sep 24, 2007 5:52 pm
by froggy
cheers chaps, i sold a perfectly good hotwire system last year when i was going to run motorbike carbs
