auto upgrade

[Marke Bailey]

I am about to change my talons 13g for a 14b turbo and 450 injectors. What I need to know is if I need a manual trans. ECU for this or if I can keep the ECU thats in it.  Are there any other items I may need for this swap?  I have a 2g manifold, 2g TB elbow, 2g MAF. I would like to put everything on now but not sure what else I need. thanks.

[Mike Schmid]

The fuel maps are setup for the smaller injectors so you might need a SAFC to compensate for the bigger injector size.  You can keep you ECU tho.  I think the ATs are supposed to have more fuel pressure too so it might not be far off if you lower your FP with a MT FPR.  You can always try it and see what happens, you can datalog it and tune your MAF hacking to match.  Make sure you datalog after the swap to make sure it's running right.

[Marke Bailey]

Shouldn't this just be a easy swap? If I just change turbo and injectors and away I go.

[Martin Raska]

If you just put in bigger injectors you will be running way too rich because the ecu will open them for as long as the smaller ones so obviously more fuel will come out.  You will only want more fuel under bigger boost, not all the normal driving.

[Ryan Lore]

I think by installing the 2gMAf it will offset the injectors close enough for decent drivability

[Marke Bailey]

I forgot to post that I also have a MBC if needed.

Ryan, thats a good point about the maf but should I get a manual ecu? Would it be easier or will it not work?

[John Hartman]

Get a set of manual TSi cams while you are at it.  The auto 1g cams are not as performance oriented either.

[Marke Bailey]

I thought they were the same?

[Graeme Shaw]

Manual cams are more agressive.  1G 5 speed are better than 2G.  2G are all the same though.

[Martin Raska]

Why go to the trouble to replace your cams with more shitty cams?

[Ryan Lore]

I agree with Martin.

It's a fair amount of work to replace cams.

Marke, I'm sure you will enjoy your turbo upgrade

I'd also recommend purchasing a fuel pump, and replacing the fuel filter and cleaning the injectors before installing them.

[Marke Bailey]

thanks guys.
 
I will probably do the cams later cause I have really noisy lifters, and will be replacing those soon. I was wondering about the fuel pump too, should I get a 255 lph? it might be overkill for now but I have plans to go further in the near future.

[Mike Schmid]

Do it once and do it right.  
Go big or go home.

I think think you know where I'm going with this  

Keep in mind with a real upgraded fuel system you might need more stuff though like a AFPR and SAFC.

[Martin Raska]

Apparently you can replace the lifters without taking the cams out.  I saw pictures somewhere, but have never taken the lifters out without the cams first being out.