Forge Diverter Valve Questions ??
05-23-2012, 09:25 PM
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Forge Diverter Valve Questions ??
With only having my tc for a few weeks. I have been trying to read as much as I can understand. Which aint much !! 
I was thinj=king of picking up a Forge Diverter Valve from modern performance. There pretty resonably priced. And look simple to install. However , I have a few questions. I take it that when they call it a diverter valve. thats the same thing as a bpv ? Alos , I have heard that the nosie that comes with the forge is only slightly louder then stock. And that to hear it really well you should have an intake ? Or at least a cold side pipe. Is that correct ? And lastly. IF I did get the forge unit. Will it cause any driveability issues at all ? And will my car have to be retuned for the forge ? I have rea that our cars use a re-circulating system for the turbo an some bov can only really be used if you retune for them. Other then this forge bpv I may some day get an intake and possibly gms1. Thats all I will probably ever do to my balt.
I was thinj=king of picking up a Forge Diverter Valve from modern performance. There pretty resonably priced. And look simple to install. However , I have a few questions. I take it that when they call it a diverter valve. thats the same thing as a bpv ? Alos , I have heard that the nosie that comes with the forge is only slightly louder then stock. And that to hear it really well you should have an intake ? Or at least a cold side pipe. Is that correct ? And lastly. IF I did get the forge unit. Will it cause any driveability issues at all ? And will my car have to be retuned for the forge ? I have rea that our cars use a re-circulating system for the turbo an some bov can only really be used if you retune for them. Other then this forge bpv I may some day get an intake and possibly gms1. Thats all I will probably ever do to my balt.
05-23-2012, 09:28 PM
#2
Vtec Rep
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no you do not need one they are just stronger and wont tear like the stock one can.
if you want a really good sound get the forge bpv and a k&n sri, wont even need a tune but its the smart thing to do.
if you want a really good sound get the forge bpv and a k&n sri, wont even need a tune but its the smart thing to do.
05-24-2012, 07:25 AM
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Isn't the Forge Diverter valve just a different name for a bpv ?
I thoought they were one in the same thing. If so , then get the Forge Diverter valve and an intake ?
05-24-2012, 08:23 PM
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Will I be okay with NO tune. Will I have any driveability issues ? Because there are no tuners any where even remotly close to me. The nearst ine is probably close to a 4 to 5 hour drive. So what intake is the best with no driving issues. With no tune ?
P.s - I did read the intake thread. But theres too much info in there to sort through !!
P.s - I did read the intake thread. But theres too much info in there to sort through !!
05-24-2012, 08:27 PM
#9
You can be tuned remotely, FYI.
The Forge doesn't change anything if you use the spring that comes with it. Don't need a tune for that. The K+N reportedly causes no change in trims and doesn't "need" to be tuned for. I haven't tested it myself, can only report what I've seen posted here.
The Forge doesn't change anything if you use the spring that comes with it. Don't need a tune for that. The K+N reportedly causes no change in trims and doesn't "need" to be tuned for. I haven't tested it myself, can only report what I've seen posted here.
05-25-2012, 08:15 AM
#11
yea, K&N intake seems to work without a tune on 90% of vehicles on here. I know it works perfectly for me and Im right near sea level.
Any type of scan guage or scan tool that reads fuel trims off the OBDII is your friend
. It will help you narrow down the the right placement of the filter.
Any type of scan guage or scan tool that reads fuel trims off the OBDII is your friend
. It will help you narrow down the the right placement of the filter.
05-25-2012, 02:53 PM
#13
Vtec Rep
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no you dont need a tune but its always a good idea to get one, i ran the same setup without a tune for a couple months and it was fine.
Air Intake - K&N Typhoon Intake 08-10 Cobalt SS Turbo
Air Intake - K&N Typhoon Intake 08-10 Cobalt SS Turbo
05-25-2012, 03:36 PM
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Here's all the information you need to know about the K&N SRI..... buy it. The main advantage is that it makes your turbo sound loud and awesome. I've been running it with GMS1 for months now with no issues.
I also have the forge bpv. Honestly, I didn't think it was any louder than stock. In fact, I felt that it was a bit more quiet. However, I do feel that now it produces a more quality blow off sound because it's metal and not rubber. Also, it's much more durable than the stock one. I have no complaints and would recommend it. BUT, I would not recommend it without getting the K&N SRI first.
I also have the forge bpv. Honestly, I didn't think it was any louder than stock. In fact, I felt that it was a bit more quiet. However, I do feel that now it produces a more quality blow off sound because it's metal and not rubber. Also, it's much more durable than the stock one. I have no complaints and would recommend it. BUT, I would not recommend it without getting the K&N SRI first.
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