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ECU and Fuel system Upgrades?

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Old 10-10-04, 11:17 PM
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Rotary Freak

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ECU and Fuel system Upgrades?

Right now I am running a DP and CB with everything else stock. I may install a midpipe in place of the cat. I came from having a S4 TII and I had to port the hell out of the wastgate (after which I had no boost creep with a full exhaust), do the FD twins need ported running a full exhaust? Basically I am looking to keep the power at or near stock levels. And this winter I am going to port the wastegate to hopefully insure that, along with add a few more mods. The other power mods I am looking to run are the following, let me know if any of them are not necessary:

Apexi PFC
Upgraded SMIC (have yet to decide which to go with)
Intake (have yet to decide which to go with)
Efini Y-pipe/crossover

I was on RX7.com page and saw that they said the stock fuel pump is the first that would need to be placed, and I can get *with the right ECU 380fwhp*, I was going to the competition for secruity reasons. So from what I gather with the power levels I want getting a larger fuel pump or injectors is a waste?? I am also going to send out my injectors to get cleaned and balanced this winter (or would I be better putting that money towards bigger injectors and tune it with a PFC?)

I am sure I will have more questions, but I would appreciate the help. I know I am lame for wanting stock power levels.....
Old 10-10-04, 11:22 PM
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Originally Posted by eyecandy
do the FD twins need ported running a full exhaust?.
\Yes and No. Depending how "healthy" your twins are, and if you have a boost controller to hold it at 10psi. I "gutted my cat" (still 2 1/2 inches) and i had a creep into 11psi nothing big. So it runs fine. My twins may go out in 6 to 8 months though.
Old 10-10-04, 11:27 PM
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I would just get bigger injectors if I were you. How much bigger depends on the power you want to make. I would port them if you can to be safe even though you may not need to. Its better to just get it out of the way.
Old 10-12-04, 05:26 PM
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Black97VR4, but I will need a PFC for that. So I guess a PFC with close to stock power is a good idea?

How important would an upgrade fuel pump be for me? Or what about a FPR?
Old 10-12-04, 05:45 PM
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Upgrading the FPR on the FD is a huge pain in the ***. If you have the PFC, that would be a far easier way to richen things up.

Sonny
Old 10-12-04, 05:50 PM
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fatman, why would boosting 11 lbs make your turbos go out in 6 months???
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