Can I use 560cc injectors with fuel pump rewire and everything else stock?

[91whiteGSX]

Hey whats up.. see everyone talk about this rewire things I looked it up still dont understand totaly but all I see is a bigger wire... now i have a 91GSX everthing on the fule is stock beside I just bought 560 Injectors but they are not in yet.. so should I get rewire kit off ebay.. or am i gonna need more then that to run this injector size ..just a round town car / work ???

 

[wret]

You should not upgrade from stock injector size until you have a way to control the additional fuel. Rewiring the fuel pump would increase fuel flow even more and make things worse. You at least need an safc or MAFT.

 

[4G63_Attack]

Re-wire the fuel pump, Install the injectors, get a 2G MAS. Then your pretty much set for now that is, down the road you should get a AFC to fine tune it.

 

[91whiteGSX]

Ok cool Thnaks guys.. I Appreciate it ...

 

[elfroggo]

That's not right because you aren't compensating for the larger 560cc injectors.

*edit*
for clarification its supposed to work because of the following reasons

1000 AAQ - Major conversions
However, Keith McDonnell reported that the 2G MAS will operate almost perfectly with the stock 1G computer when larger 550 cc injectors are also fitted. The bigger injectors add more fuel to offset the additional 'uncounted' air flowing through the larger MAS. Keith was experimenting on a Galant VR-4, , which could possibly behave slightly differently than other DSMs, but his results were confirmed second-hand by Dallace Marable.

Re: 2G Mas in 1G
When running 550's with a 2G MAS you can get away with no fuel control
at all if you are willing to deal with a rough idle for a couple days as
the ECU learns that it needs to add more fuel on the low trim. I ended
up with about 112% on the low trim and 100 on the middle and high (as
checked with the TMO Data Logger) after running for a couple weeks with
the AFC zeroed out.

Later,
Keith McDonnell, GVR-4 #275 of 1000

Re-wire the fuel pump, Install the injectors, get a 2G MAS. Then your pretty much set for now that is, down the road you should get a AFC to fine tune it.

 

[bmxer89]

Just get a afc, might as well get a pump there cheap and good thing to have.

 

[Tsi_User]

Re-wire the fuel pump, Install the injectors, get a 2G MAS. Then your pretty much set for now that is, down the road you should get a AFC to fine tune it.

I would definately NOT do this.. follow what wret suggested he knows what he's talking about.