blower belt slip??

[Foxfan88]

heya guys i threw a 2.90 blower pulley on.. ( was the stock 3.33) and along with my crank pulley (7") and it looks to be making about 10-11 psi on my combo

i noticed that the boost gauge just slightly jumps around when it gets up in the higher boost levels. shakes a bit around 10-11

i'm assuming this is a little belt slipppage?? still running the 6 rib pulleys.

but the car feels like it picked up a decent amount of power.
as far as i saw it went from 7-8 psi to 10-11, pretty warm outside, so i may see 12 psi or so on a colder night.

got my tweecer and tuned the car pretty rich (11:1) and timing is locked out at 18* total at high loads. the car still runs pretty awesome. cant wait to lean her out a bit and maybe add a few degress of timing and see how she feels.

layed into it in 4th gear and after i let out at like 5500 i could smell a slight hint of clutch lol

 

[bentley429]

Sounds like its slipping some. How tight is the belt? Have you decided on what clutch yet?

 

[Foxfan88]

its pretty tight, about as tight as i would dare run it. are there any other measures i can take to keep the belt from slipping? i'd sure hate to have to swap to 8 rib pulleys you know....

as for the clutch i will probable get the RAM powergrip HD like you have. the FMS clutch works good but just not enough holding power for my car now lol

 

[bentley429]

Anderson has some stuff that you put on the blower belt thats like glue I suppose that makes it not slip. No clue if it actually works though.