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M30 Turbo Injectors
Posted: Nov 05, 2013 5:54 PM
by jodystevens
http://www.siemensdeka.com/product/60lb ... -fi114962/
I'm considering injectors at this point in my m30 turbo build. It's going to be running 20lbs of boost steady. I will be running megasquirt and don't want to sacrifice idle as is common with large lb injectors. Do the injectors in the link look good or is there something better? Don't want to spend more than say $60/injector.
Posted: Nov 05, 2013 7:11 PM
by Shadow
You need to not get the short style.
60lb is too small.
These 80lb are $47 each.
If I wasn't injecting alcohol through an 83lb/min nozzle
they would be close to "100%" dc on mine m30.
Not much more boost then what you're wanting either.
This is not 1971 "big" injectors idle like butter.
80lbs are only pups.
http://www.ebay.com/itm/SIEMENS-DEKA-80 ... 5b&vxp=mtr
Do the right thing.
Posted: Nov 06, 2013 3:21 PM
by GI jonas
60lb is too small.
Too small?
I run 16psi on 42lbers without issue on my m30. 60's should feed well in excess of 5-550 hp with safe duty cycle (which I admittedly care not about) I thought?
Edit: did I miss something regarding fuel? is this e85?
Posted: Nov 06, 2013 4:36 PM
by jodystevens
I wouldn't think that 60lb is too small, I've heard many people run 60lbs with no issue at high boost. Maybe someone else can chime in on this?
Posted: Nov 06, 2013 9:59 PM
by sideways7
the amount of boost you are running makes no difference on injector size... you need to figure out how much power you are trying to make and on what fuel. what size is your turbo and how much does it or can it flow at 20lbs?
mark
Posted: Nov 06, 2013 10:38 PM
by GI jonas
sideways7 wrote:the amount of boost you are running makes no difference on injector size... you need to figure out how much power you are trying to make and on what fuel. what size is your turbo and how much does it or can it flow at 20lbs?
mark
And can your M30 head keep up with it?
Posted: Nov 06, 2013 11:17 PM
by sideways7
so, simply... how much power are you trying to make and on which fuel. that will give you a ballpark. technically you need to know fuel pump flow, fuel pressure goal and some other things also... but start with the basics
Posted: Nov 07, 2013 6:27 AM
by jodystevens
Looking for 450-500 hp range. Highest octane available to me is 91. Undecided between hx55 and gt35r. I'm really open to opinions and suggestions at this point. I planned to run twin walbro pumps as well as bigger fuel lines if need be.
Posted: Nov 19, 2013 9:38 AM
by jodystevens
So is it better to go with high impedance or low?
Posted: Nov 23, 2013 4:36 PM
by dr.house
is 630cc siemens deka ok for 500-550whp m30b35 with megasquirt 2 v3 and 98 oktan?
Posted: Nov 24, 2013 7:40 AM
by iViLe
I would be looking at 80lb just to be on the safe side, most are high impedance.