Rusty

Hey, I will be installing new pulley, injectors, and maf-t this weekend. I just wanted to see what everyone's experience was using the maf-t to tune the car. I've talked to intense-racing about what settings to use. With a 2.85" pulley and 42.5lb/hr injectors, they told me to set the maf-t to C 1. Unfortunately I do not have a wideband, or well, any other method to monitor A/F right now. So I just wanted to see what other people's experiences were with using the maf-t on their ss s/c's.

Saki XL

I ran into this same issue without having a Wideband... I ended up getting a couple of CEL's and throwing my car into limp mode before I just gave up and set it to E-3. I'd like to do more tuning but a wideband is definately needed for me.

I'm also running on a 2.6" pulley and 42.5lb/hr Injectors.

Rusty

so with a 2.6" pulley and 42.5 injectors you are set to E-3? how does it run?

Bad GTP

First off, make sure your DIP switches are set properly to ON-OFF-OFF-OFF. You shouldn't need to stray far from C-1, unless you have an aftermarket intake, and if so, then you really need to tune it with a wideband.


Those injectors will only support a 2.80" supercharger pulley up to 6,500 RPM, or a 2.90" supercharger pulley up to 7,000 RPM. You are risking major engine damage by having injectors that small with that much boost.

Rusty

sh*t. i already have the injen cai installed and will be installing the 2.85" pulley and injectors this weekend. any recommendations on which way to tune the maf-t with the intake? i'm assuming make wot slightly richer?

CobaltBurst

Thats the same thing i was thinking..... 2.6" pulley with 42.5lb injectors, didnt sound like enough.

Rusty

i finally got everything installed (2.85" pulley, 42.5 injectors, bkr7e plugs, and maf-t). the plugs are gapped at .35 and maf-t set to C 1. I also have an Injen CAI. the car pulls strong, but in the lower rpm range it seems to almost bog a little bit and runs kind of sluggish. i was wondering if anyone has a similar setup and has any advice. do i need to check the plug gaps? or should i adjust the base setting on the maf-t?

Rusty

anyone?

cybcow

Well you should listen to Bad GTP and definitely go with the base settings if you don't have a wideband tuning device. I suggest rather a professional tune (INTENSE / HPTuners software) or at minimum an Aeroforce gauge so you can see how its running using the base settings Bad GTP talks about.

Rusty

I am using the base setting that he talks about "C 1".

djt81185

on off off off setting c1 plugs gapped at .045 using the intense plugs worked perfect for me...

Dan

Anthony

.045 thats to big of a gap .035 works well for me..c1 on off off off 268hp 234tq 2.8...

*TRIX*

you live near the same elevation as me soooo i have a 2.85 from zzp and injectors
and im running on off off off c-1 OR c-2 it depends on the weather because of how rich the car wants to run

and im 2 steps colder with my plugs

djt81185

trust me its not to big...if u add more boost it will be...my car ran like crap on .035... .045 made it run like a champ. The guy who did all the tuning told me to run that and it made such a difference.

i dynoed 272whp and 256wheel tq on the setup i listed...tho it was a simulated dynojet run

Trust me it works The more gap u can run without blowout the more complete combustion u get for more power...basic engine theory...i said the same thing about too big until i tried it and it ran great.

Dan