is jecs safe/better

Lego · Post by **Lego** » Wed Apr 29, 2009 2:03 am

im running 480cc injectors and i need to make it not so rich so i put a jecs maf on it and grounded the blue wire.

no CEL but my narrowband shoes partly lean partly optimal when getting on boost but is it safe to run this jecs maf if im running 17 psi or should i go back to hitachi?

BSOD2600 · Post by **BSOD2600** » Wed Apr 29, 2009 3:27 am

Without a piggyback or other way to tell the ECU it's got larger injectors/different MAF, it won't do you much good.

Mattheww044 · Post by **Mattheww044** » Wed Apr 29, 2009 3:28 am

damn 17 psi... nice!! not quite sure about the maf but just thought i would give you some props

Lego · Post by **Lego** » Wed Apr 29, 2009 3:33 am

well does anyone have a wideband i can barrow around my area, im willing to pay if i can use it.

with a wideband i can really see if the jecs does make an ok match with 480's since i already run rich

wtdash · Post by **wtdash** » Thu May 07, 2009 3:42 pm

The stock ECU can't handle the 480...the max are 440s, based on info on this site. I've done both and 440s run fine, but rich. The 480s are too much. The JECs allows more air, but the ECU still doesn't know what to do w/it and the bigger fuel supply....it ain't that smart!

If you want to do it safely, in addition to a piggyback, I'd also consider the REVTRONIX chip.

Have fun,
Td

Lego · Post by **Lego** » Fri May 08, 2009 3:49 am

no, not necessarily. i ran a 14.2 with 480cc's and with a decent reaction time.

mlitz123 · Post by **mlitz123** » Fri May 08, 2009 5:16 am

so i have done a search both on this sight and nasioc and have not been able to get a strait answer... where can you get a jecs maf?

wtdash · Post by **wtdash** » Fri May 08, 2009 5:34 am

mlitz123 wrote:so i have done a search both on this sight and nasioc and have not been able to get a strait answer... where can you get a jecs maf?

You're hijacking the thread. Plz post this in the Parts Shed.

Mattheww044 · Post by **Mattheww044** » Wed May 13, 2009 8:39 am

would you guys recommend a JECS MAF for me? what exactly are the benefits over the hitachi?

BSOD2600 · Post by **BSOD2600** » Wed May 13, 2009 6:31 pm

hitachi maxes out around 155 g/s while the jecs maxes out around 205-220 g/s airflow.

Mattheww044 · Post by **Mattheww044** » Wed May 13, 2009 7:39 pm

o, ok but i would definately need to get the car tuned immediately after putting it in right?

BSOD2600 · Post by **BSOD2600** » Thu May 14, 2009 3:14 am

Right, the stock ECU doesn't know how to 100% completely handle the larger MAF nor injectors (yes, 440cc's "work" but it's not perfect at all).

Mattheww044 · Post by **Mattheww044** » Thu May 14, 2009 3:28 am

ive got a piggyback PP6, i have kellys old red SS (click my sig link for specs), but i would need to get it tuned if i get the JECS reguardless right? or could i just throw it right in?

ericem · Post by **ericem** » Thu May 14, 2009 3:36 am

Lego don't you have a stage 2 chip?

Mattheww044 · Post by **Mattheww044** » Sat May 30, 2009 1:52 am

i just got the JECS MAF in the mail, but i will need to tune it right after i get it right? im running a PP6 not the stock ecu. i would like to just throw it in there but if i cant then... well i cant haha

legacycentral bbs

A forum for 89-94 BC-BF(BJ) Legacy Owners and Fans

is jecs safe/better

is jecs safe/better