[jmackisback]

Good evening.
I was wondering if someone could simply give me the lower pulley part numbers for 15%, 18% and 21.5% OD (and their accompanying manufacturers). I am about to do some modding with a dual nozzle meth set up and I cannot get a clear answer as to who makes the 18% OD lower pulley.

On a side note, what would a 18% and 21.5% OD pulley spin the stock blower at? Not looking to go much, if any, beyond the max efficiency.

Please keep in mind the car has intake, ported TB, headers and dual nozzle meth set up.

Thanks kindly in advance.

[IneedAZ]

This will tell you the rpm they will make the blower spin at. No part numbers though.

https://weaponxmotorsports.com/blogs...ng-mods-needed

[Markoz28]

Originally Posted by jmackisback

Good evening.
I was wondering if someone could simply give me the lower pulley part numbers for 15%, 18% and 21.5% OD (and their accompanying manufacturers). I am about to do some modding with a dual nozzle meth set up and I cannot get a clear answer as to who makes the 18% OD lower pulley.

On a side note, what would a 18% and 21.5% OD pulley spin the stock blower at? Not looking to go much, if any, beyond the max efficiency.

Please keep in mind the car has intake, ported TB, headers and dual nozzle meth set up.

Thanks kindly in advance.

Im not sure on the RPM's but since you are running meth, may just want to go up to an 18% which is like a 9.55" lower pulley. You could also do 9.1 lower and 2.3 upper which I think would net you about 21%. Would be a good idea to port the SC with either Kong, Jokerz, Or Modern Airflow Dynamics. You will be over 700whp with all of this and without touching a cam if that is not your desire. Also throw in 103TB or Soler 95mm with their adapter. Should be a killer!

[jmackisback]

Thanks for in input guys, I appreciate it. Still looking for that 18% part number

[JasonSB]

https://dsxtuning.com/collections/su...12859884372048

[Markoz28]

Originally Posted by JasonSB

https://dsxtuning.com/collections/su...12859884372048

Well this should be the answer then.

Hey Jason what part of Tx are you in?

[JasonSB]

Originally Posted by Markoz28

Well this should be the answer then.

Hey Jason what part of Tx are you in?

I'm in the DFW area.

[jmackisback]

Originally Posted by JasonSB

https://dsxtuning.com/collections/su...12859884372048

Thanks kindly. I take it ATI and/or other brands don't make an 18%? (which basically appears to be a 9.5"?)

[Zigg L1]

I got a 9.17in lower pulley and balancer that is 17% not sure of an 18%

[jmackisback]

Originally Posted by Zigg L1

I got a 9.17in lower pulley and balancer that is 17% not sure of an 18%

I was under the impression a 9.17 was 15%, am I mistaken?

[Markoz28]

No, you are correct. 9.17 on the lt4 is a 14-15% but on the LSA an 18%.

[jmackisback]

Recommendations for pulley size with a CAI, headers and dial nozzle meth set up?

[Markoz28]

Originally Posted by jmackisback

Recommendations for pulley size with a CAI, headers and dial nozzle meth set up?

If porting the stock SC, change the upper to 2.1 pulley would net you 14%. If not do the lower pulley 9.17.

I ported my SC and run dual meth with 2.3 upper and 9.17 lower. Added the upper bc of the better flow from the SC now and to maintain boost. Some would say that it’s too much and the SC will heat soak. I don’t run back to back as I like everything to cool down from Diff to trans so I don’t mind waiting 30-45min between runs.

[Zigg L1]

DSX makes a 9.45in lower which is 18%. Got mine from Vengeance Racing