Thread: air fuel ratios vvl

i have connected a wideband on my stock sr20ve with i/h/2.5 inch cutout i am running the de maf and de ecu and my numbers at wot are about 11.7-12.4 is that running too rich? timing is set at 15 may go up to about 17-19

For an NA VE yes that is very much too rich. You need to get a tuneable ecu or piggyback and get it tuned. Don't touch the ignition timing until you do. The ignition tables you are running right now are intended for a DE not a VE. Although I believe the VE tables are more aggressive on timing, it's not a linear scale.

Stock DE from a 92 ecu I think can't remember.

You want to shoot for 13.0-13.1

so will raising the timing about 2 degrees will that help with the air/fuel ratio?

^That's like a DET table, definatly not a stock de or even ve table???


ricardo_m20,
If your on the stock de ecu and maf then set the distributor to 19/20 deg. As for the air fuel, your screwed. Don't waste your time buying an AFC or fuel regulator, you need a basic ecu or nemu setup!

Wait... Don't you have a basic ecu and n60 maf and 333cc injectors? Put that shit back on, because I have a great tune for you. 100X better

What are you using for VVL engagement?

my bad I'm blind that one says N15.
This one is the B13 timing map


This one is the sr20det timing map


GtiR timing map

i am running the 333 injectors i also do have a n60 maf just laying around...but only thing im waiting for is my nistune to be shipped

it should stay over the 12.5 range and under 13.2, if you got a stock ecu get a nismo fpr and start dialing it in. But the best way is the chipped ecu and dyno tune, that way it'll have a custom tune for your engine needs, plus you can narrow down the afr to a more specific range

Like i told you on facebook, put your timing at 20-23 and adjust your afr like they said lol de ecu you need to run a lot of timing when your running de ecu, dyno proven to gain a lot of whp

yeah that's what im doing been testing it on 2 and 3rd gear pulls at 19 timing