tell me what injector to go with here please

[horndog]

You should have 13.6 v, you may not be exciting the alternator.

Yeah, I see 13.8 at idle now with the volt booster.

 

[Toby_Goodmk]

volt booster should not activate until X amount of tps, so you should be seeing 16V with that idle reading.

 

[20psiofevil]

Question on the fast xfi, doesn't it refrence fuel pressure on the rail and alter slopes accordingly so it doesn't go lean?

Another question on 1600cc injectors, anyone ever use these high impendance from these guys?https://www.fiveomotorsport.com/1600cc-asphalt-2-series-import-fit-wrx

 

[Toby_Goodmk]

Question on the fast xfi, doesn't it refrence fuel pressure on the rail and alter slopes accordingly so it doesn't go lean?

Another question on 1600cc injectors, anyone ever use these high impendance from these guys?https://www.fiveomotorsport.com/1600cc-asphalt-2-series-import-fit-wrx

it does if you have the fuel correction turned on, and your pressure transducer needs to be spot on.

 

[BEATAV8]

Another question on 1600cc injectors, anyone ever use these high impendance from these guys?https://www.fiveomotorsport.com/1600cc-asphalt-2-series-import-fit-wrx

Haven't seen anyone running those.... But I run the F.I.C. 1650's with a stock ECM / SD2. http://fuelinjectorclinic.com/
The SD2 required a modification to extend tip-in fueling range but that was all.

 

[horndog]

volt booster should not activate until X amount of tps, so you should be seeing 16V with that idle reading.

I haven't fully tested it and logged it yet.

 

[horndog]

Question on the fast xfi, doesn't it refrence fuel pressure on the rail and alter slopes accordingly so it doesn't go lean?

Another question on 1600cc injectors, anyone ever use these high impendance from these guys?https://www.fiveomotorsport.com/1600cc-asphalt-2-series-import-fit-wrx

As Toby stated, do you have the pressure transducers for XFI?

 

[Detomaso71]

Toby
If I change from the 6266 TA
To a 6262 PTE DBB I don't have to make changes you made correct?
Your problems were only over 21lbs?

 

[horndog]

Toby
If I change from the 6266 TA
To a 6262 PTE DBB I don't have to make changes you made correct?
Your problems were only over 21lbs?

Boost pressure is just a number. Why would you want to go to a slightly smaller turbo?

 

[Toby_Goodmk]

Toby
If I change from the 6266 TA
To a 6262 PTE DBB I don't have to make changes you made correct?
Your problems were only over 21lbs?

My problems were solved with much more fuel at the rail supplied by a larger pump. We then upgraded to larger injectors, as mine were out of capacity. Right now I am at 75% (and a little fat) at 20lb. If you go down in turbo size, you can expect it to spool quicker that is all, and less power in the power band. We dyno tuned my car, and the car is much more safe.

 

[horndog]

My problems were solved with much more fuel at the rail supplied by a larger pump. We then upgraded to larger injectors, as mine were out of capacity. Right now I am at 75% (and a little fat) at 20lb. If you go down in turbo size, you can expect it to spool quicker that is all, and less power in the power band. We dyno tuned my car, and the car is much more safe.

It makes me wonder if I need to turn my pressure up... Fuel pressure sender sees 37... just talking out loud.

 

[turbo89]

It makes me wonder if I need to turn my pressure up... Fuel pressure sender sees 37... just talking out loud.

Turn it up.., let the
Pump do the work .. Especially when running certain injectors