The swap is still on the way and now that it's coming (saving for labor hehe, have ALL parts) I have a couple of questions that I couldn't get a clear answer with using the search. I'll be running a walbro 255 on my new motor (kevin landers 87TII w/ streetport) and a GReddy FMIC (new style). How much boost can I run without a fuel controller or larger injectors? Also, if I decide to run an SAFC should I have an S5 TPS or not?

Thanks!!

Jon

 

Stock ECU?
Maybe 12...


-Ted

 

thanks ted, next question...if the wastegate of the S4 turbo is properly ported what boost leves should I be seeing without a boost controller? I have a new GReddy profec B boost controller but it's obviously on useful if the turbo doesn't creep like mad over stock. A stock intake probably won't fit with the FMIC pipes so that method of restriction is out and I don't want to use a cat/airpump.

 

Full exhaust, it'll do 10-12psi, but with the FMIC, it might be lower by a little.



-Ted

 

I see 9psi with a 2.25 downpipe/midpipe. I bump it up to 12psi with a MBC and the stock ecu is likeing it just fine.

 

sounds great I guess that boost controller is only gonna be good for preventing the turbo from boosting past wherever the wastegate can control.

 

I think I'll do well with this setup for a while - the next stage of upgrades will be a bit more involved...I'm thinking of a 60-1, bigger primaries and secondaries along with TEC3