Pulley Identification
 

I need some help identifying the below pulley and what I can do to replace it(I know there was just a post about pulleys, but I did not want to Hijack.) It is a 2.8 and I am currently running an S3 HE, Dual Pass, Opt B, 42 lb injectors, cut out airbox, Trifecta tune, bad mab header, ZZP downpipe with 50 state converter =(, 91 octane and semi-custom exhaust (I think it still has the bend over the axle.) I will be upgrading to 60 lb injectors, a 2.5 downpipe with 400 cell cat and a ZZP tune soon. ZZP recommended going up to a 3 pulley to be safe with fueling since 93 is not available here. I mainly need to identify the easiest way to replace this pulley. Secondary, will I be able to flash the ZZP tune over Trifecta with HPTuners or am I better off getting the core from zzp with the tune on it? I have been running the 2.8 for 7+ years now, but I do not have any monitoring or UEGO to know what has been going on, I have also been looking into Boostane to possibly keep the 2.8 and run 93-94 with the additive. I have been asking alot of questions lately and I hope to pay it forward sometime, thanks in advance for any input!

https://cimg6.ibsrv.net/gimg/www.cob...695e0620b5.jpg

id say that pulley is a from smoothflow, looks like their pulleys.

zzp is pretty conservative on their pulley recommendations. with the right mods there is no reason to go up to a 3" pulley, even on 91 octane. first thing id do is get a wideband in the car, you really need that to know whats going on. id also recommend an interceptor gauge, or something else that allows you to monitor things like knock and intake air temps.

i believe you will need to either remove the trifecta tune from the ecm, or get a core ecm in order to go back to a tune thats done by a method other than trifecta (hp tuners).

if 91 octane is all you have available in your area i would look at a water/methanol injection kit. octane boosters are a pain and really dont work as well as they claim. water/meth has both benefits of cooling the intake charge and adding octane. ive been running it for nearly 10 years on my car and its never given me an issue. i run 91 octane as well because the 94 in my area is inconsistent. 91 octane + water/meth with a 2.7 (and all the supporting mods) has been a solid combo for me for the past 5 years.

Did you run your injection through the TB or a supercharger spacer plate? How much Methanol do you go through in a month? Just curious since you brought the system up.

with the AEM kit set with the medium nozzle i can go a couple months before draining the tank. my old devils own kit that ran on a boost activated switch i would go through 2 quarts a of water/meth per week. its also very dependent on your driving style. im running my nozzle in the air intake before the throttle body. i havent had any issues with the coating on the rotors either.