jdmConversion

How many and what kind of modifications put on the FD's would require a fuel computer of some sort? im worry because with a certain amount of mods and no fuel computer can result in running too lean and engine detonation. im new to this forum so any help would be much appreciated.

rynberg

Welcome to the forum. Please use the search function and read through the sites listed in the newbie sticky. Once you've spent dozens of hours reading through those, THEN come and ask questions.

maxpesce

What rynberg said
But the rule of thumb is 3 mods (chosse 3 from Intake, IC, DP, & Catback) at STOCK BOOST (10psi) is OK. The stock IC or Intake and Cat cause enough restriction to keep you safe at stock boost. adding a MidPipe, Porting, or More Boost will put into the need more fuel zone.

kyle@insight

So many ecu questions today

Anything beyond a downpipe I'd upgrade the ECU, that's probably being overly paranoid tho. Better safe than sorry tho.

1 BAD 7

If I could go back and do it all over again, I'd say upgrade the ECU first or second, then go from there.

I blew my motor with just an intake and a DP - lasted three weeks, then *pop*

And of course...get a boost gauge before anything else

jdmConversion

a performance shop i called told me that a bigger fuel pump can also remedy the lean problem. is that true???

kyle@insight

The fuel pump won't help you if your ECU isn't using it to send more fuel. Talk to a rotary specialist shop, a normal performance shop wont cut the mustard.