Yep....guess I'll start my collection of TVS pulleys to go along with my collection of MP112/122 pulleys. Ahhhhh shoot

 

You wouldnt happen to have a dinner plate sized 112 pulley would you? Im looking for a big pulley to start off tuning with on my 112 then work down to my 2.8 thats currently on it. If youve got some bigger ones shoot me a PM with what you want shipped to 78754 please sir

 

I have 2.6, 2.8, and 3.0 pulleys. I probably won't sell any until I get the blower sold. I know if I sold one or two, those would be what the buyer wanted

 

Ive got a 3.3, 3.1, and a 2.8 6 rib pulley. All 3 are stainless. Ive also got a 2.9 8 rib aluminum. None of these are RIP'd. Ive got an aluminum RIP 2.9 also. If interested, PM me.

 

3.3 and 3.1 SOLD

 

My son installed the 3.1" pulley and shorter belt. Seeing about 10psi. Gets to 10psi quick and holds it until 6000rpm (shift point). No evidence of belt ship. Should I pulley down one more notch (3.0), buy a RIP pulley, and call it good?

 

Go for it, i was advised by Joe to run the HD belt with the RIP pulley. I just picked one up yesterday.

 

I would have expected you to gain a bit more going to a 3.1" I would have expected you to be around 11 or so. Do you have the ability to scan? HPT, EFIlive etc? Also are you running 2bar or MAF? What TB are you running? Sorry all the questions just trying to get a complete picture of your setup. I am still waiting on those pics.... haha

 

I was expecting a little more boost too. If you subscribe to the .1" decrease in diameter = 1psi increase, I should be at 11psi. With the 3.1", I was expecting to see 11psi at 3000rpm and belt slip on the top end. I saw high 9's to 10psi yesterday with 60 degree OAT's. This morning, with 32 degree OAT's, I see just over 10psi.

I'm speed density tuned, no MAF. My son does have HPT. I know little to nothing on how to use it. He knows enough to be dangerous. Right now, I'm using a stock 90mm t'body. Looking into having it ported, but haven't pulled the trigger on that yet. Plan is to get to max boost without slip, port the t'body, then have a final tune tweak done.

I'll get you the pics today......sorry, forgot that one.

 

Personally I wouldnt mess with porting the throttlebody, I have not seen any gains to warrant it. Just remember your truck does not have a IAC, your PCM just uses the blade angle to control idle.