Time for New Spark Plugs (again...)
#16
10-13-2015, 11:10 PM
997ttR, you may need to understand your car at a higher level. You have BRV's not Blow off valves unless, you sound like a WRX when shifting.
As you mentioned, if you bought it and own it, it is always better.
You may want to be more specific for the forum to help.
Unfortunately, I have owned 3 tunes, only to find my last few tunes were horrible.
I have the Cobb unit. It works and is flexible. I can log, change tune, and sell the unit when I decide to change.
As you mentioned, if you bought it and own it, it is always better.
You may want to be more specific for the forum to help.
Unfortunately, I have owned 3 tunes, only to find my last few tunes were horrible.
I have the Cobb unit. It works and is flexible. I can log, change tune, and sell the unit when I decide to change.
#17
10-14-2015, 03:00 AM
Hello Therock88 I am having the same problem on my car (997.1 turbo) I've change the blow off valves twice already the first ones were AP, and the ones I have now are a better brand which I don't remember by heart and still doing it, not as much but still noticeable, I have the Softtronic tune which I believe you have too, what is the recommendation for plugs on our tune.....any advice will be appreciated.
As indicated, you have recirculating valves or BRVs...we do not have blow off vales....ours is a closed system. Just FYI....and I would always avoid anything from AP/Vivid Racing.
On the plugs...recommended for best results, and I have experienced this, is Denso IK22 Iridium plugs gapped down to .021 for best results and longevity. Cannot speak for other tunes, but runs great on Softronic 93 Octane tune....Just had 26 flawless runs in my car at the NO FLY ZONE, and trapped over 163 mph in 1/2 mile, so I am pleased.
Good luck...
DC
#18
10-14-2015, 08:54 AM
Hi there, As indicated, you have recirculating valves or BRVs...we do not have blow off vales....ours is a closed system. Just FYI....and I would always avoid anything from AP/Vivid Racing. On the plugs...recommended for best results, and I have experienced this, is Denso IK22 Iridium plugs gapped down to .021 for best results and longevity. Cannot speak for other tunes, but runs great on Softronic 93 Octane tune....Just had 26 flawless runs in my car at the NO FLY ZONE, and trapped over 163 mph in 1/2 mile, so I am pleased. Good luck... DC
#19
10-14-2015, 09:57 AM
Could be lots of things. Assuming you have a Sport Chrono Package (most do), it should be reading all the way up the gauge. You may also want to check the actual pressure with a logging tool/device. With my upgrades etc., mine is pegging at 24 PSI +/-
Some things to check, are boost leaks, actuator rods stuck, BRV's, and of course plugs/coils (not for boost, but for your sputtering).
Good luck,
DC
#20
10-14-2015, 04:25 PM
Hi, Could be lots of things. Assuming you have a Sport Chrono Package (most do), it should be reading all the way up the gauge. You may also want to check the actual pressure with a logging tool/device. With my upgrades etc., mine is pegging at 24 PSI +/- Some things to check, are boost leaks, actuator rods stuck, BRV's, and of course plugs/coils (not for boost, but for your sputtering). Good luck, DC
#21
10-14-2015, 04:48 PM
I have them on most of the time. I play around a little and have switched to some billet Forge valves. Honestly the OEM's work the same, and unless they are deteriorating, no need to change at all. I happen to have the Forge on now since I had them laying around and figured I wanted to tinker. But same results with OEM...no difference.
Only thing I ever noticed was one set of the Forge BRV's had one side completely seize up (the piston)! If it happens again...they are garbage bound
As mentioned earlier, I would NEVER put AP or anything from Vivid on the car again( I am sure you have seen enough posts here on on Rennlist about that).
Good luck with your issue.
DC
Only thing I ever noticed was one set of the Forge BRV's had one side completely seize up (the piston)! If it happens again...they are garbage bound
As mentioned earlier, I would NEVER put AP or anything from Vivid on the car again( I am sure you have seen enough posts here on on Rennlist about that).
Good luck with your issue.
DC
#22
10-14-2015, 06:24 PM
I have them on most of the time. I play around a little and have switched to some billet Forge valves. Honestly the OEM's work the same, and unless they are deteriorating, no need to change at all. I happen to have the Forge on now since I had them laying around and figured I wanted to tinker. But same results with OEM...no difference. Only thing I ever noticed was one set of the Forge BRV's had one side completely seize up (the piston)! If it happens again...they are garbage bound As mentioned earlier, I would NEVER put AP or anything from Vivid on the car again( I am sure you have seen enough posts here on on Rennlist about that). Good luck with your issue. DC
As mentioned earlier, I would NEVER put AP or anything from Vivid on the car again( I am sure you have seen enough posts here on on Rennlist about that). Good luck with your issue. DC
#23
10-14-2015, 06:30 PM
DC
#25
10-15-2015, 08:42 PM
I was reading about the difference in between springs on the Forge Recirculating valves so if you have a remap you should install the yellow springs that comes in a bag aside of each valve box, if not, you should keep the blue ones that already come inside of the valves originally.
#27
10-18-2015, 12:21 PM
Just spent almost a month going nuts trying to figure out why I was only getting 13-15lbs of boost. Performed several boost leak tests up to 30psi and installed all new clamps thinking I was blowing past the y pipe or plenum. I even thought it was an exhaust leak so I replaced all my exhaust gaskets. I'm sure you know where this is going at this point, yea the stupid aftermarket brv was causing it. I just pulled them out and tested and I finally got full boost again. Moral of the story-Don't trust them. The stock ones work fine.
On a side note when doing a boost leak test try moving the hoses in and out (and side to side) of the IC's. One of mine held fine until I pushed on it and then leaked really bad. So I had to take it out and clean up the sealing surfaces.
Cheers
On a side note when doing a boost leak test try moving the hoses in and out (and side to side) of the IC's. One of mine held fine until I pushed on it and then leaked really bad. So I had to take it out and clean up the sealing surfaces.
Cheers
#28
10-18-2015, 05:13 PM
Just spent almost a month going nuts trying to figure out why I was only getting 13-15lbs of boost. Performed several boost leak tests up to 30psi and installed all new clamps thinking I was blowing past the y pipe or plenum. I even thought it was an exhaust leak so I replaced all my exhaust gaskets. I'm sure you know where this is going at this point, yea the stupid aftermarket brv was causing it. I just pulled them out and tested and I finally got full boost again. Moral of the story-Don't trust them. The stock ones work fine.
On a side note when doing a boost leak test try moving the hoses in and out (and side to side) of the IC's. One of mine held fine until I pushed on it and then leaked really bad. So I had to take it out and clean up the sealing surfaces.
Cheers
On a side note when doing a boost leak test try moving the hoses in and out (and side to side) of the IC's. One of mine held fine until I pushed on it and then leaked really bad. So I had to take it out and clean up the sealing surfaces.
Cheers
DC
#29
10-18-2015, 10:19 PM
Registered User
Join Date: Jan 2012
Location: Sydney, Australia
Posts: 147
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Hello Therock88 I am having the same problem on my car (997.1 turbo) I've change the blow off valves twice already the first ones were AP, and the ones I have now are a better brand which I don't remember by heart and still doing it, not as much but still noticeable, I have the Softtronic tune which I believe you have too, what is the recommendation for plugs on our tune.....any advice will be appreciated.