Hi ,

Has somebody got the injector lag timing for the fuel injector clinic 850cc injectors?

thanks
sven

 

Are you refering to the injector battery offset, or the actual time it takes the fuel to make it down the intake track?

 

the differant voltages,as you need to alter them in the ecu (power fc)

thanks
sven

 

Here are some voltage against time below for the FIC 850cc, I hope this helps.

Volts uSec
----- ------
6v 2550 uSec

7v 2370 uSec

8v 1690 uSec

9v 1300 uSec

10v 1020 uSec

11v 870 uSec

12v 740 uSec

13v 620 uSec

14v 510 uSec

15v 430 uSec

16v 370 uSec

 

gtvevo,

thanks just what I needed

sven

ps where did you have that info from?

 

I run the same injectors on my AEM, But AEM does latency to voltage testing on several different brands and sizes for their EMS.

Glad I could help

 

Yep thanks mate,

What turbo are you running?

sven

 

GT30R (-15 CHRA) TO4S Inlet / .63 Exhaust side.

 

I have the same but with a 82 housing.
Do you think the injectors are big enough for a gt35(82 housing) ?

sven

 

They are not big enought for a GT35R with either housing, you will need 1000cc injectors if you are going to push the GT35R to its limit. The 30R will push the 850cc to their limit on a 2.0. If you are turning some really high rpms with either set you still may need to go bigger with the 30R and the 35R.

 

** 850cc min **

- S.G. gasoline = 0.69, which = 0.69g/cc
- (0.69g)*(850cc/min) = 586.5g/min
- (586.5g/min) / (454g/lb) = 1.29 lb/min
- (1.29lb/min) * (60min/hr) = 77.5lb/hr
- (77.5lb/hr) / BSFC of 0.55lb/bhp/hr = 141bhp
- (141bhp) * (4 injectors) = 564bhp

Therefore, a 850cc/min injector is good for a theoretical 560+bhp on a 4-cyl engine. What that equates to in 'whp' depends on the dyno. With a Dynojet, whp is probably close to bhp.

Notes:

- A ball-type injector (e.g. FIC, Lucas) will run more efficiently at higher duty cycles than a disc or pintle type (Denso, Bosch, etc.).

- Use of methanol reduces the injector load.

 

ted B

but they would be at 100% duty...


GTVEVO

Do you have the voltages for the fic 950?

sven

 

Sure thing, I have posted the FIC 950cc 90lb 2ohm chart below.

Volts uSec
----- ------
6v 2550 uSec

7v 2550 uSec

8v 2080 uSec

9v 1620 uSec

10v 1300 uSec

11v 1050 uSec

12v 880 uSec

13v 750 uSec

14v 650 uSec

15v 570 uSec

16v 510 uSec

 

Thanks again,and I presume these are good for the 35R?

sven

 

No, they'd be at 80-90% duty.

Why?

Because most people aren't aware that injectors are typically rated at 80-90% duty.