370cc TT injectors in an NA

[gpelite]

I have a set of 370cc injectors from a TT that I want to put in my N/A. I have a piggy back computer to adjust the air fuel ratios and such and make sure dentonation doesn't occur. I know the stock fuel pump can handle 400hp in an N/A per Z1motorsports, so I don't need a booster pump or new in tank.

My question is, does timing or anything else need to be adjusted before I drop these in?

Is there a way to tell, if they are not working. My mechanic before on my N/A injectors just heard a cylinder wasn't firing right, I dunno how.

Anything else I'm missing, let me know

[nsrZ32]

I'm pretty sure you need to reflash the ECU on the NA to run the 370's.

[gpelite]

so basically pick up a TT ecu?

Next summer I plan to run the Z in for new 8.5:1 pistons for running any boost. So can I just run a TT ecu now with my N/A engine, 370cc injectors, and wastegate boost turbos?

Note: I have a lot more parts for the application not listed

Question basically is can I run the combination above safely?

[elwesso]

You will have to reflash the ECU or somehow compensate for the 37% extra fuel... the ECU isnt gonna do it automatically...

I also dont think running a TT ECU will work, as itd still run super rich under high load.. Its expecting boost!!!

[elwesso]

on another note, its gonna bea real PITA to get it to work when you dont really need it...... Dont put those injectors in, itd be a lot easier to replace 1 or 2 injectors from the N/A and then swap the injectors when you really need more fuel.

[gpelite]

You will have to reflash the ECU or somehow compensate for the 37% extra fuel... the ECU isnt gonna do it automatically...

As I mentioned in the very opening post, I have an apexi piggy back fuel computer, I can temper the fuel curve however I please. I was simply asking if that would be enough. I know the ECU is not that smart, heck I don't trust it normally.

The reason I brought up the TT ecu at all is because nsrz32 said I should reflash it, even after I mentioned I would be able to control the air fuel ratio and make it run safe. I wondered why.

Is there something more besides the rich condition and the pressure in the lines (It WILL be enough for the new injectors), I have already planned those two. That is all I have been asking. If so, what else am I missing.

I was asking possibly if some crap with timing or other systems would need to be adjusted, true or not?

[elwesso]

really for something like this youd have to ask someone that knows the ECUs very well..... The fuel rails are the same, so thats fine, but i cant answer your question about the timing and stuff...

youd probably want to look at a Q45 timing curve since its N/A and has 370cc injectors.

[gpelite]

Well I shall ask anyone else out there, do you know if there will be any issue than the ones covered above should I drop 370cc injectors in my N/A with an Apexi fuel computer governing the air fuel curve?

If I knew how to deal with timing elwesso I'd be very happy. Do you suggest any material on how to learn how to properly tune timing, replace the belt after a rebuild, etc. ? I would be most grateful since my knowledge only goes so far on the Z right now.