help to decide on injectors

[blackee]

i'm running now on a 4efte with TDO4,walbro 255lph, emanage, fmic, exedy racing clutch, with stock internals. what size of injectors should I use if I want to reach atleast 210whp?

Thanks and more power!!

 

[Rev]

You have a few issues to decide. Most specifications turbo etc are quoted for 20C so 210whp is 244 fhp but you will be driving in Manilla at 30degC plus temp so you will not easily have 210whp. I would say 200whp is more realistic assuming stock fuel pressure 430cc injectors with 80% dc and should do it.

 

[AdamB]

Work it out dude

 

[mudi]

made complete sense buddy.


repped!!

 

[Rev]

Love your work Adam. I noticed your formulas use standard figures for specific fuel consumption I think Starlet can be more efficient than .6 though but haven't checked at 585hp . You probably noticed I only allowed 0 DegC for Manilla above where as the standard formulas seem to allow -20degC fueling.

 

[AdamB]

When calculating I always work on a +20/30% increase on the HP target. This allows for any air temp, air density, quality of fuel, fuel temp etc changes.

 

[Nick@TD.co.uk]

We have Denso 430cc injectors here which will support over 210whp.

Drop me a PM if you're interested.

Cheers

Mike Jones
Tuning Developments Ltd