Help!!! :( Pulley Sizes & Belt dont match!

redondoaveb

I contacted "StillenZ84" (Evan) and he said you have to install a spacer on the supercharger shaft in order for the pulley to line up with the jackshaft pulley when you change out the jackshaft pulley. A longer bolt is needed also.

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Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

cupcakez

Lol man. I wish I could talk to him.
I been trying to reach him forever!
Glad you were able to contact him though.
Maybe he doesn't like me xD or thinks I am a weirdo for trying to contact him hahaha.

Thank you. That is valuable information that I will hold onto and remember for when I decide to actually use my 3.47" pulley and swap out with one of the stock 3.2", just to pair it with my 3.0".

Would you be able to please ask him one more thing?
What belt part number is needed for the 3.47" and 3.0" combination of pulleys?

Now that the spacing issue has a solution of a longer bolt and custom spacers added, we just need to find the correct belt.

Please and thank you if so!! Would be super appreciated and helpful for any of us that want to use that combination to make nice boost.

cupcakez

Thank you.
My mechanic is doing as you said right now and will let me know how it goes.
If all is good then I O U

TopgunZ

Why not use the 2.8" pulley and the 3" idler instead of messing around with custom spacers?

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cupcakez

I will be honest haha, I do not know where the idler would go on the supercharger jackshaft side.
Would that mean theres 3 pieces total? 2 sc pulleys and an idler?

How much psi would be made with that setup?

redondoaveb

The Vortech 2A038 8 rib pulleys have a different backspacing on them than the stock 3.20 jackshaft pulley that comes with the Stillen kit. It makes the jackshaft pulley stick out from what I can guesstimate, about 5 mm's towards the front of the engine as shown in the pic that "cupcake" posted.

What I'm trying to accomplish is to replace my 3.20 jackshaft pulley with the same size high traction pulley.

Oh shiat, I just noticed this is my 666th post, the devil made me do it.

__________________
Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

cupcakez

Scratch that. I see the 3rd idler now lol. Im so blind.

Gotcha.

But would the 2.8 and 3.0" idler pulley with the stock 3.0 pulley bring in 13+ psi?


Also my mechanic had a slight concern.
He said when he was manually spinning the 928 upgraded SCi supercharger v3 in my car, it sounded dry

This is because of the brand new 928 pieces that were put in, correct? Impeller, HSS bearings, etc. Correct or incorrect?

turtle64b

You need to put oil in the SC when it comes back from rebuilding. One bottle (4 oz)

cupcakez

Oh yea. Pft. Duh.
I'm dumb to have forgotten that lol.

redondoaveb

Your mechanic didn't think to pull the dipstick to see if there was oil?

__________________
Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

cupcakez

Nah I think he was stressing out about the other issues that was going on at the time lol since he is the only one working on the car the entire time

But guess what though?

My car should be ready to fire up tomorrow, the A2A kit is on now, the new engine is swapped in, brand new VVEL's are in (just need to do the proper procedure for brand new ones), the new tires needa be swapped onto there (305/35/19) MT Street tires, fresh o2 sensors, bumper, headlights, and all necessary fluids.

After that it should be good to go. FINALLY the WAIT is OVER!

TopgunZ

There is no stock 3.0 pulley

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cupcakez

I meant stock 3.2 my bad lol.

TopgunZ

The fact your running low octane fuel is going to hurt. It will be hard to keep knock down. You can only compensate timing so much when you throw boost at it. Good fuel is a must for good power. I'm guessing by not having your blower spin any faster is a good thing untill you can get some better fuel into the build.

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cupcakez

Yeap. I totally understand that it will be not as powerful as it can be with running 91 octane.
However I am just concerned about safety and very nice driveability first as it is my DD.
My tuner and I both understand that e85 will definitely bring more power to the car overall, but we will do 91 octane first and then slowly transition to e85 once I get the CJM S1-SE return system which won't be for a good while and that's fine with me.

And yup, you're right haha, By not having it spin any faster is a good thing so I think the 3.0" SC pulley is a good fit right now Will lower the size later!