supercharger pulley upgrade

[John Jones Jr.]

You want to add fueling only when needed. And thats only at open loop, otherwise you mess up the fuel trims. You add fuel above 7PSI to get an AFR 12 and you'll be flying!
For fueling I suggest this:

First clamp the MAF signal at 4.6V
then add fuel with this
https://splitsec.com/product/aic1-g2...or-controller/

using something like this:
http://www.ebay.com/itm/Weld-on-Addi...-/261843239446

Sorry guys for the thread hijack but it's a relevant question.

Piko, what do you reckon. Will I be running too lean with 10psi @ max rev's? I don't have a AFR gauge installed but have clamped the MAF @ 4.7v.

[piko]

Sorry guys for the thread hijack but it's a relevant question.

Piko, what do you reckon. Will I be running too lean with 10psi @ max rev's? I don't have a AFR gauge installed but have clamped the MAF @ 4.7v.

The stock injectors don't provide enough fuel for much over stock boost. Didn't you have yours remaped?
Many people just run higher boost with stock fueling and the ECU takes care of knock by reducing ignition timing. It does a good job but you're loosing a lot of power that way.

[John Jones Jr.]

The stock injectors don't provide enough fuel for much over stock boost. Didn't you have yours remaped?
Many people just run higher boost with stock fueling and the ECU takes care of knock by reducing ignition timing. It does a good job but you're loosing a lot of power that way.

Thanks for the replay Piko. Yes, I had mine remapped. So, that may help?

Would it be beneficial to just change to larger injectors anyway (without an ECU remap to suit) and if so importantly is there suitable injectors that are a direct swap that won't cost a fortune? I think I know the answer but would like to hear your view.