These are actually called Bypass Valves as they do not vent to atmosphere like a blow off valve would. I replaced my stock 8 MR edition plastic BV with a metal one from an EVO 9.
Thank you for showing the results of the 9 Mr bov. Along with the 9 and 8. I ran 28.5 psi for over 100k miles on my tuned 9 Mr. Most people did not believe that, except for people that rode or raced this car. Still, after 130k miles the stock bov is getting a bit tired. 9 Mr se best Evo, best and fastest stock tunable 4cy. Gets no respect from American car owners, always gets respect from exotic car owners.
@@jameslapine678 how long did yours last? I still have the original a 160k, I hammered the crap out of it. Broke the shifter cables and a shift fork, the synchros look new ( I have new ones to compare). I used to break parts in the Muncie in my chevelle, this is no different. A cheap and easy fix for the enjoyment of the car. The Evo is not for everyone. Maintaining the car is key, and most people are not up to it. Just my own opinion and experience.
Madmagyver I bought my ix gsr in July with 63k miles, I’ve put about 4K miles on her so far and I daily it. Bone stock too, even has the fender liners and splash shield. How much power are you putting down? I agree, it’s not cheap either but I wouldn’t trade my Evo for anything else
@@jameslapine678 stock engine, stage 3.5. Self tune. Not sure how much power, but I maxed out the stock fuel pump hitting 28.5 psi. Bought in 08 with 30k. No major problems, oil change every 2k, transfer case 4k, trans 12 times. Cracked the turbine housing, but no play in 160k mile over boosted turbo journals. The Mr is even better than a five speed. The gears are perfect, lower first and higher top gear. Reverse is crazy high. But it balances out. Thank for the dialog.
How about the Tomei ones? 🤷🏻♂️ Are they just the same as metal 9s or better? Oh and BTW, the CT9A’s silver top metal BOV are no different from the gold, they’re just the new ones. Even some of their brand new oem metal parts, even its bolts if you buy them now, has silverish coating as opposed to the older yellowish ones. Maybe Mitsu and their supplier had decided to make them silver now.
Are the springs all the same too? I installed an Evo X BOV on an Evo 8, and went from the woosh sound when letting off throttle to the stutututu flutter sound with the Evo X BOV.
It's really easy to modify a plastic one so it won't leak at all.................they're designed to open at a preset pressure as a safety valve, crushing a metal one just increases the opening pressure
Do you know if the BOVs are interchangeable if they're aftermarket too? I have an Agency power BOV for a 2003 evo 8 but just got an evo x. I am wondering if there is any cons to switching the BOV. I would set the AP BOV to be fully recirculating.
If it works for a 8/9 it should work for an X. just might need a longer vacuum hose. Edit: but can obviously depend on aftermarket intercooler piping. Tial flanges for example.
I have two question, I bought a hks ssqv IV and want to vent air to atmosphere is it a big problem for my car ? Second question I saw 2 different install types some of them install it on original recircilation valve place and some of them install it on the intercooler pipe which one is right and if I install on intercooler pipe should I remove original recircilutaion valve ?
Using the stock ecu, with less than 30psi. You must recircutate. Speed density & ve, allow for external blow off. Over 30 I recommend external blow off to take it easy on the turbo.
are you by chance using any of the IX BOV's?? I just looked at IX and I have an VIII BOV! I have a tune a week from today and don't want this bov to limit my potential.. I think I'm at 21psi right now..
@@BoostedFilms I actually have a Mitsubishi colt czt which has the exact same plastic bov. Everyone changes this bov. I run 0.8-1.4 bar low-high pressure setting on bc
You're not even testing them properly....you need one single pressure source and a tee so that both pressures are the same. like here. ua-cam.com/users/edit?o=U&video_id=ddSJkx0ozSY
I was running the same PSI at both ends, just with 2 different compressors. But i understand what your saying. It took me a while to get this set-up and I just want to compare the results. Did you do a test of the stock 8 BOV this way? If so, what were the results? Also, your video link is not working in your post, but this one should ua-cam.com/video/ddSJkx0ozSY/v-deo.html
These are actually called Bypass Valves as they do not vent to atmosphere like a blow off valve would. I replaced my stock 8 MR edition plastic BV with a metal one from an EVO 9.
They can vent to atmosphere if you set it up that way.
05 was the last 8 so there is almost no stock evo 8 in 2017 from when u posted
I’m mad I didn’t see this before. I ordered a new evo 9 blow off valve and wish I got the evo 10 one instead.
I love learning about this kind of stuff about my car. Keep up the vids!
Thank you Boosted Films!
Thank you for showing the results of the 9 Mr bov. Along with the 9 and 8. I ran 28.5 psi for over 100k miles on my tuned 9 Mr. Most people did not believe that, except for people that rode or raced this car. Still, after 130k miles the stock bov is getting a bit tired. 9 Mr se best Evo, best and fastest stock tunable 4cy. Gets no respect from American car owners, always gets respect from exotic car owners.
Madmagyver Mr has a weak trans, gsr for the win
@@jameslapine678 how long did yours last? I still have the original a 160k, I hammered the crap out of it. Broke the shifter cables and a shift fork, the synchros look new ( I have new ones to compare). I used to break parts in the Muncie in my chevelle, this is no different. A cheap and easy fix for the enjoyment of the car. The Evo is not for everyone. Maintaining the car is key, and most people are not up to it. Just my own opinion and experience.
Madmagyver I bought my ix gsr in July with 63k miles, I’ve put about 4K miles on her so far and I daily it. Bone stock too, even has the fender liners and splash shield. How much power are you putting down? I agree, it’s not cheap either but I wouldn’t trade my Evo for anything else
@@jameslapine678 stock engine, stage 3.5. Self tune. Not sure how much power, but I maxed out the stock fuel pump hitting 28.5 psi. Bought in 08 with 30k. No major problems, oil change every 2k, transfer case 4k, trans 12 times. Cracked the turbine housing, but no play in 160k mile over boosted turbo journals. The Mr is even better than a five speed. The gears are perfect, lower first and higher top gear. Reverse is crazy high. But it balances out. Thank for the dialog.
What are the inlet & outlet sizes on them? 1.25"-ish like on the Evo7/Airtrek Turbo-R/Outlander Turbo?
How about the Tomei ones? 🤷🏻♂️ Are they just the same as metal 9s or better?
Oh and BTW, the CT9A’s silver top metal BOV are no different from the gold, they’re just the new ones. Even some of their brand new oem metal parts, even its bolts if you buy them now, has silverish coating as opposed to the older yellowish ones. Maybe Mitsu and their supplier had decided to make them silver now.
Are the springs all the same too? I installed an Evo X BOV on an Evo 8, and went from the woosh sound when letting off throttle to the stutututu flutter sound with the Evo X BOV.
How do you know if it’s failing? If it is, can you buy another oem bov of the same one(evo 9) & replace it without a tune?
awesome info!
It's really easy to modify a plastic one so it won't leak at all.................they're designed to open at a preset pressure as a safety valve, crushing a metal one just increases the opening pressure
How would you modify the plastic BOV?
A writeup is on a BMW forum somewhere.
Do you know if the BOVs are interchangeable if they're aftermarket too? I have an Agency power BOV for a 2003 evo 8 but just got an evo x. I am wondering if there is any cons to switching the BOV. I would set the AP BOV to be fully recirculating.
If it works for a 8/9 it should work for an X. just might need a longer vacuum hose. Edit: but can obviously depend on aftermarket intercooler piping. Tial flanges for example.
Boosted Films thanks appreciate it!
What are the inlet outlet diameter sizes? 1.5"?
I have two question, I bought a hks ssqv IV and want to vent air to atmosphere is it a big problem for my car ?
Second question I saw 2 different install types some of them install it on original recircilation valve place and some of them install it on the intercooler pipe which one is right and if I install on intercooler pipe should I remove original recircilutaion valve ?
Using the stock ecu, with less than 30psi. You must recircutate. Speed density & ve, allow for external blow off. Over 30 I recommend external blow off to take it easy on the turbo.
what a great video!
are you by chance using any of the IX BOV's?? I just looked at IX and I have an VIII BOV! I have a tune a week from today and don't want this bov to limit my potential.. I think I'm at 21psi right now..
I still have one 9 and one 10 BOV. I would try to get a 9 or 10 before your tune :)
Got a lead on a X for a good price. Do you foresee any fitment issues with the vac nipple being clocked a different direction?
No, if anything you may just need a longer vacuum hose.
So do i need to upgrade the plastic bov to a Metallic one? Or is it just waste lf money
It’s worth upgrading away from the plastic version
@@BoostedFilms thanks for answering. So am I going to notice any performance gains upgrading from the stock ? That's all I care about
@@ΔημήτρηςΤζιωτζιος depends on how much boost you are currently trying to run.
@@BoostedFilms I actually have a Mitsubishi colt czt which has the exact same plastic bov. Everyone changes this bov. I run 0.8-1.4 bar low-high pressure setting on bc
Sensei 🙏🏽
Heard they Crush the stock wastegate too?
danny boii never heard that. don't see why you would when a boost controller would be all you need.
EVO4LiFE LET'S GO!!!
Crushing them is really dumb.
hmm i got a plastic bov in my evo 9. maybe it's different in europe
FlugelMann all evo 9s should come with the metal version
I've heard that the USDM versions have plastic ones.
evo 8 has plastic 9 have metal
1g dsm bov
The flange on a 1G dsm can tend to warp and you have another gasket added to the mix. Not worth the trouble to put on an evo IMO.
You're not even testing them properly....you need one single pressure source and a tee so that both pressures are the same. like here. ua-cam.com/users/edit?o=U&video_id=ddSJkx0ozSY
I was running the same PSI at both ends, just with 2 different compressors. But i understand what your saying. It took me a while to get this set-up and I just want to compare the results. Did you do a test of the stock 8 BOV this way? If so, what were the results? Also, your video link is not working in your post, but this one should ua-cam.com/video/ddSJkx0ozSY/v-deo.html