How am I making 9.4psi of boost on a 3.5-5psi pulley?!

im trying to lower the boost back to safe levels but do not know how.

when I began tuning with Dom we were
at 3-4.5 psi.

If a boostleak were present, wouldn’t it be lower than the pulley limited 3.5-5psi?

Could it be that the S/C is “Stacking” PSI because of my high flow cats being clogged from running too 10%? This would cause a backup and give me overboost in the high RPM range?

Nope. They have been clogged. My car now sounds so quiet it’s eerie.

im going to gut them this Saturday morning. I have not yet turned on the meth/water system because I’m going to first finish my tune.

I’ve contacted Andy Gerzand and if all goes well will order the Stage 3.5 kit. Though it will take four weeks to arrive because he’s going on vacation.

When boost suddenly jump like that without any changes that is not a good sign.

I was driving around when out of nowhere there was a snap on 3/8 wrench in the middle
of the road. It was like mana from heaven!

I’m driving down the highway, going home from work. “When out of nowhere” I hear a thwap, thwap, thwap, thwap. My heart sinks and the first thing I think is, oh got there goes my engine. I quickly pull over and shut off my engine. Pop the hood and find serpentine
belt ground up between the blower pulley and neck. I spend a few minutes
pulling out strings of serpentine like spaghetti while cars are zooming by.

When i I was installing the belt I tried to make certain the blower support pulley was in tight. But first I wanted to unscrew it. So I began turning it like a standard bolt and thought, wow this sure is on tight! After some wrenching I hear a pop and a little give. It was loose now, but 1/2” off the track path. So the new serpentine belt was but to that size by the off track pulley. Is there a way I can fix this pulley?

The blower “support” pulley is off center.

Just misaligned. It’s not the main blower pulley, it’s the supporting one.

There was luckily no damage from the belt tearing.

Do I just do what I did in the first place, butt now turn it the other way? I’m afraid of breaking it.

I aligned the support pulley by cutting it shorter. Now it’s aligned with the belt.

I guess those cats gut themselves. Kamikaze rv6 hfpc!

Anyone have an idea as to how to gut the cats? I tried to use a bar and a hammer and it’s not working as well as I thought. I could try to drill it out with a large bore drill.

Since the 3rd cat is unaffected. I could replace the precats and just drive it until it clogs again. Then unbolt the 3rd cat and keep cleaning it out until it’s all gone from the precats? Seems like the easiest way to do it.

I am now running one cat half way gutted and the thee is smashed up inside. Eh, I may just buy pcds... the 3rd cat is in good shape.

Mike, I love your build man. I hope you will be there to give me pointers when I go to install the 3.5. Andy is getting it ready. Since I live so far away I’ll have to install it myself.

Zeta, I’m confident that the CLS outlet will work, I just can’t get a size 10 wrench that fits in that small space! I’ll go to Home Depot today and get one.

RV6 PCDs ordere and are 4-6 weeks out. It’s to bad my RV6 HFPCs took a poop from running too rich..

The WOT cat gut trick seems to be working, I floored it and heard a bunch of metal sounds in the exhaust. Going to clean it out of the “third cat catchcan”. If this works I can save $400.

I’ll message him about it. I just got another load of cat material in my 3rd cat. Car barely started before I headed home, so that’s a good sign that it’s ready to be emptied. Soon enough, Ill have the only RV6 HFPC PCDs around!

Car is running good now. I gutted the RV6 HFPC as I wait for my RV6 PCDs. Car isn’t running 9psi anymore so it’s not as fast as it was. Though it’s running healthy, I was getting worried.

I used a 3/8” electritioms 2x4 still and beedlenose pliers to get it all out.

What difference would the gutted HFPCs HPwise vs. the PCDs? The only downside I can imagine is air turbulence.