what size injectors.

[96 420a-t]

soo after fighting with this setup for soo long I have decided to do away with my fmu setup.

What is a good injector size for a stock 420a running 8psi?

 

[bagged420a]

Stock injectors will hold 8psi.

 

[96 420a-t]

With stock fuel pressure?

 

[Bud92gsx]

Your stock injectors will probly be able to take care of 8 psi..What are the size of the stock injectors on a 420a anyway?

 

[phantom_19]

450cc+ you will have more options down the road.So you wont have to buy injectors twice...

 

[96 420a-t]

450 would require me to run MS, stock injectors are 190cc but flow around 235cc.

i have a set of 275 laying around i think they might do it with a safc

i will never run over 10 psi so i dont need huge injectors.

 

[Bud92gsx]

You miz well put in the 275's, but honestly you miz well get a set of 450's so thers no reason to upgrade later unless you plan on building your motor..I have a set of 390's laying around if you want them..See what hapens with the 275's and the safc, but keep going bigger in the back of your mind..

 

[96 420a-t]

450 reqire MS. safc can only handle 400. your 390s will require a resistor box to run

 

[Bud92gsx]

SO run the 275's with the safc, and make sure to log it if you can to make sure everything works correctlly..

 

[96 420a-t]

uh... log... sure

 

[Bud92gsx]

No logger got it..Just try your best with the safc, you will figure out what works and what doesn't work very quickly..

 

[96 420a-t]

i can log but it is a scan tool i have

 

[Bud92gsx]

Even with the scan tool you probly wont be able to post your log, just incase you need sum help..Will the scan tool log knock, fuel trims stuff like that?

 

[96 420a-t]

everything my computer sees so no, not knock. car doesnt have a knock sensor. but fuel trims etc. yeah. i can record like a logger and i can write them down and transfer themn on here if i really have to.

 

[Bud92gsx]

There you go man try logging and figuring it out with the safc..But if you run into problems, there are plenty of people here on tuners that can help you out with the tune..So please don't blow it up, like I said if you run into problems sumeone will be able to help you out no problem.

 

[Shake_Zulla]

uh... log... sure

I seem to remember Dave telling you to do some logging 5 posts into your running lean problem . Do we need to have a charity event for your cause?

 

[96 420a-t]

I did log and I made a post about it.

 

[Locke]

[...] car doesnt have a knock sensor. [...]

Back of the block under intake manifold - it's the middle sensor, between the OPSU and the CKP.

 

[96 420a-t]

Oh. Well that's what that is. But still I can't log knock