misslabeled waste gate springs?
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,757
Likes: 4
From: omaha ne
misslabeled waste gate springs? i am having a problem holding the boost up top that i want. i am seeing 8psi with my boost controler off and with it turned all the way up can only hold about 14psi up top. i can get a lot more boost at lower rpms but up top it falls off fast. i think i am seeing a lot of exhaust presure and it is pushing open the gate but i am really not sure.
anyways. i look at my wategate instructions. it is a turbonetics evolution. says it comes shiped with the red spring rated at 5psi(i see 8), i decided to go up a step or two on springs and pull out the red and goto put in the blue it is rated at 9psi so i am hoping for a few psi more than the 8 i am seeing now.
first thing i notice is the red 5 psi spring i pull out is the fattest spring of the bunch. i thought the fatest spring would be the highest boost but what do i know. i slap in the blue spring rated at 9psi and go for a spin and hmm, i see 5psi. ****!!. fatter spring does = more boost like i thought and the springs are misslabeled. this sucks. i was hoping to goto the dyno tomorrow and see if i could get a little more boost up top. now all i have is a few shims.
anyways. i look at my wategate instructions. it is a turbonetics evolution. says it comes shiped with the red spring rated at 5psi(i see 8), i decided to go up a step or two on springs and pull out the red and goto put in the blue it is rated at 9psi so i am hoping for a few psi more than the 8 i am seeing now.
first thing i notice is the red 5 psi spring i pull out is the fattest spring of the bunch. i thought the fatest spring would be the highest boost but what do i know. i slap in the blue spring rated at 9psi and go for a spin and hmm, i see 5psi. ****!!. fatter spring does = more boost like i thought and the springs are misslabeled. this sucks. i was hoping to goto the dyno tomorrow and see if i could get a little more boost up top. now all i have is a few shims.
Hey Jim,
I've got .4 bar, .5 bar, .8 bar springs (so ~ 5psi, 7.5psi, 12psi). The 5 psi is the smallest spring diameter and the lightest gauge coil. The 12psi is the biggest spring diameter and the largest gauge coil.
I've got .4 bar, .5 bar, .8 bar springs (so ~ 5psi, 7.5psi, 12psi). The 5 psi is the smallest spring diameter and the lightest gauge coil. The 12psi is the biggest spring diameter and the largest gauge coil.
