boost question
#1
01-27-2010, 08:45 AM
Join Date: Jan 2010
Location: portsmouth
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boost question
hey all, im curious (not bi-curious), is it safe to put a boost gauge and adjuster in the volvo, reason being is taht ive newly installed a better intake syatem and i wanna up the boost a lil bit and if i did without fitting a fmic how much pressure do i adjust it to, normally in my old jap cars i had it set about 15-17psi of pressure for a proper whopping kick up the ****. many thanks the man from great britain
#2
01-29-2010, 03:11 AM
Yes, but at least in the states i think fuel cut is around 14lbs and 17-18lbs is peak efficiency for the 15g (if you have an 850, both numbers might be lower for the x70). Install the gauge right at the vacuum tree under the throttle cover. I would get at least a panel filter and a little more open exhaust before pushing too much out of it though.
#3
01-29-2010, 06:14 AM
1. What Volvo do you own? YEAR & MODEL.
2. To answer your question in the general sense, YES you can add a boost gauge and a Manual Boost Controller to your Volvo and raise the boost pressure.
2. To answer it more indepth, the answer is still yes... 1994-1998 850's and x70's can run a Manual Boost Controller perfectly fine. On the LPT (Low Pressure Turbo, 13g) your running about 5-7 PSI stock. You can raise it to 15PSI however that is the max you'd want to run on a 15g. Because anything more and your out of the turbo's efficency range. 10-12 PSI is a better choice if you have an LPT. If you have an HPT (High Pressure Turbo, 15g, 16t) your running about 10PSI stock and you can raise it to 15-17PSI safetly. At around 20PSI your getting out of the efficency range. Keeping it on the 15PSI side of things will be safer.
And like the other poster suggested hook the boost gauge to your vaccum tree under the throttle body cover.
3. With 1999+ Volvo's you can still add a boost gauge. However the issue with Manual Boost Controllers can become an issue. A lot of people have tried and it has failed and others have tried and it has worked. I personally on a 1999 s70 awd with an LPT engine. I raised the boost with an ECU upgrade. Now I went with the cheaper less developed tune from SpeedTuning USA. They range around $325 and if you get in on a groupbuy you can get them for less. But I wouldn't recommend them. As the owner is hard to deal with and just all around not pleasant. But what I am getting at is if you have a 1999+ Volvo you might want to think about an ECU upgrade to raise the boost and not a Manual Boost Controller.
2. To answer your question in the general sense, YES you can add a boost gauge and a Manual Boost Controller to your Volvo and raise the boost pressure.
2. To answer it more indepth, the answer is still yes... 1994-1998 850's and x70's can run a Manual Boost Controller perfectly fine. On the LPT (Low Pressure Turbo, 13g) your running about 5-7 PSI stock. You can raise it to 15PSI however that is the max you'd want to run on a 15g. Because anything more and your out of the turbo's efficency range. 10-12 PSI is a better choice if you have an LPT. If you have an HPT (High Pressure Turbo, 15g, 16t) your running about 10PSI stock and you can raise it to 15-17PSI safetly. At around 20PSI your getting out of the efficency range. Keeping it on the 15PSI side of things will be safer.
And like the other poster suggested hook the boost gauge to your vaccum tree under the throttle body cover.
3. With 1999+ Volvo's you can still add a boost gauge. However the issue with Manual Boost Controllers can become an issue. A lot of people have tried and it has failed and others have tried and it has worked. I personally on a 1999 s70 awd with an LPT engine. I raised the boost with an ECU upgrade. Now I went with the cheaper less developed tune from SpeedTuning USA. They range around $325 and if you get in on a groupbuy you can get them for less. But I wouldn't recommend them. As the owner is hard to deal with and just all around not pleasant. But what I am getting at is if you have a 1999+ Volvo you might want to think about an ECU upgrade to raise the boost and not a Manual Boost Controller.
Last edited by S70driver; 01-29-2010 at 06:16 AM.
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