new BOV spring installed...
Senior Member
Joined: 08-06-2008
Posts: 1,761
From: Grand Haven, MI
I hope this link is OK to post. This is the most detailed description of the BOV spring tension setting I found - very good info on this topic.
http://www.frozenboost.com/stpg.php?page_id=bov
http://www.frozenboost.com/stpg.php?page_id=bov
Member
Joined: 12-10-2007
Posts: 65
From: Sacramento
I just installed the spring today, time 20 min, loosen top air box tube clamp 5/16 socket or screw driver, disconnect small black hose from inlet tube by unlocking a small wire , pull upper inlet tube back, you can access bottom inlet screw near the firewall using a short screw driver or 5/16 socket, loosen screw, move inlet tube back, lift and rotate to to right out the way, no need to take it all the way out, use short extension to loosen the 3 10mm screws holding the 3 bolt cap with the black hose attach to it, remove cap, pull out black rubber boot and spring, new spring is thicker and longer, place spring and boot into cap, will not stay in because spring is longer, hold cap against housing and start screw (it a small area to work in), once screw start install the other screws and finish tightening screws with socket and extension, put inlet tube on making sure upper part will reconnect to air box, note the position of the bottom clamp, tighten bottom screw, attach upper part of tube to the air box, tighten screw, your done.
Thread Starter
Senior Member
Joined: 08-18-2007
Posts: 602
From: Warrington PA
update on the spring performance w/auto trans....
as you all know on Eric's suggestion I installed the BOV spring. After driving the SS for over a week with the new spring, I am somewhat ready to report on the performance gain that I have noticed so far. Also take into account that more testing needs to be completed and this should happen now with the Spring season upon us (no pun intended)
Overall there is a more responsive throttle response as I have stated earlier. Where the SS would lug in high gear at a lower speed with the trans in "D", it now seems that with a mere touch of the accelerator, you see an increase of boost that was not seen before, without engaging either partial or full throttle passing gear. Also using part or even full (WOT) throttle on passing gear is quick and right there. Off the line performance is also more responsive, and the one time I have done this recently I have noticed not only does the boost come on quicker, but it appears that the r's arrive faster and the trans shifts quicker and may not drop off in the r's as much as before, when the trans shifts. Again more testing is needed and will be done ASAP, weather and the roads permitting, of course in a safe environment as always.
On a side note, since I have been driving the SS "normally" for the last month, even with the Hahn (BSR) tune, I feel that the computer still responds to your driving methods. So in addition to the testing, I have to let the ECM know I mean business and get it in that "here I am" mode.
So the saga continues and I may have an CAI intake installed in the near future, and that will also be interesting.....just an FYI update.
To everyone doing the BOV spring change, report back here and let us know your thoughts.
One last item, and I am by no means an authority on the subject, but with the links referenced to in this thread, they are a wealth of info and also great reading, but IMO I don't think that the spring change is going to put that much more undo pressure on the turbo than if you always had your foot into the pedal all of the time. If you make changes on any vehicle for any performance reason and you "beat" upon that said vehicle you always run the risk of something happening from making those changes, but if you make the changes and use them for some added perfromance and a trip down to the track every-so -often, then there is no reason why these changes would not last for the miles and years ahead of you for a big
of great driving...
Overall there is a more responsive throttle response as I have stated earlier. Where the SS would lug in high gear at a lower speed with the trans in "D", it now seems that with a mere touch of the accelerator, you see an increase of boost that was not seen before, without engaging either partial or full throttle passing gear. Also using part or even full (WOT) throttle on passing gear is quick and right there. Off the line performance is also more responsive, and the one time I have done this recently I have noticed not only does the boost come on quicker, but it appears that the r's arrive faster and the trans shifts quicker and may not drop off in the r's as much as before, when the trans shifts. Again more testing is needed and will be done ASAP, weather and the roads permitting, of course in a safe environment as always.
On a side note, since I have been driving the SS "normally" for the last month, even with the Hahn (BSR) tune, I feel that the computer still responds to your driving methods. So in addition to the testing, I have to let the ECM know I mean business and get it in that "here I am" mode.
So the saga continues and I may have an CAI intake installed in the near future, and that will also be interesting.....just an FYI update.
To everyone doing the BOV spring change, report back here and let us know your thoughts.
One last item, and I am by no means an authority on the subject, but with the links referenced to in this thread, they are a wealth of info and also great reading, but IMO I don't think that the spring change is going to put that much more undo pressure on the turbo than if you always had your foot into the pedal all of the time. If you make changes on any vehicle for any performance reason and you "beat" upon that said vehicle you always run the risk of something happening from making those changes, but if you make the changes and use them for some added perfromance and a trip down to the track every-so -often, then there is no reason why these changes would not last for the miles and years ahead of you for a big
of great driving...
Last edited by SSROADSTER; Mar 29, 2009 at 07:43 PM.
