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92legacyss · Post by **92legacyss** » Thu Sep 24, 2009 6:16 pm

What Fuel cut deffender does everyone recomend or use on our cars, i like the TD04 but more boost is going to be needed pretty soon.

n2x4 · Post by **n2x4** » Thu Sep 24, 2009 7:01 pm

I'm impressed with the TurboXS unit. A little bit more expensive, but works well!

ericem · Post by **ericem** » Thu Sep 24, 2009 9:37 pm

Just get a stage 2 chip from revtronix.

92legacyss · Post by **92legacyss** » Fri Sep 25, 2009 12:58 am

Do i need to get a MBC and fuel pump with the revtronix stage 2???

mexicanzero · Post by **mexicanzero** » Fri Sep 25, 2009 1:40 am

mbc not at all the chip tunes the ecu to run 14/17psi with the stock bcs

fuel pump highly recommended but not necessary.

with the td-04 and stock injectors/maf you "shouldnt" be running more than 12 psi anyways (which is pretty much fuel cut point)

i highly recommend the chip just make sure you have all the requirements stated on the site met before putting it in to avoid over stressing the turbo/engine.

-Alex

magicmike · Post by **magicmike** » Fri Sep 25, 2009 3:30 am

come on guys, you dont need a stage anything to go beyond fuel cut...at least to 16 psi anyway.

ericem · Post by **ericem** » Fri Sep 25, 2009 5:00 pm

But atleast the car will run better. Although I have no evidence. Also im pretty damn sure you are maxed out at 13psi after that the stock MAF sensor is maxed out as well as injectors anyway.

asc_up · Post by **asc_up** » Fri Sep 25, 2009 6:41 pm

I was running 15 PSI on a VF39 and 440cc injectors for about a year. Worked well, although it maxed out the MAF so the injectors just dumped fuel under full boost which took away from how much power it was making.

mexicanzero · Post by **mexicanzero** » Fri Sep 25, 2009 11:03 pm

yeah i ran 15 psi on a td-04 on stock injectors for about a year doesnt mean it was a good idea

the fuel economy was SHIT power was decent but nothing compared to with the chip even in normal mode (so 1 psi less is making noticeably more power) and i'm getting close to 500km to a tank in the city...
aand by the end of it one of my injectors was burning out (when the maf maxes out the injectors go wide open they are not meant to be open for longer than a split second so sometimes if they go open for a longer time they just stay open, that CAN not will, cause hydrolocking and at 15 psi at 5000rpm that would definitely mean at least a bent rod maybe even worse.

there was a very similar discussion not long ago here
http://bbs.legacycentral.org/viewtopic.php?t=41207

-Alex

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