my cams say I hate blow off valves!

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Nov 4, 2005 | 11:56 AM

#31

Z1 Performance

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From: Long Island, New York

fixed..thanks!

Nov 4, 2005 | 03:32 PM

#32

ev08buoy

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From: Boston

Well went back to stock BOV.. still stalling, still getting CEL's... what's left? I think I need my idle tune fixed...

Putting on the stock diverter did do a few things.. I feel alot smoother shifts, the soft noise from it is calming and no more god damn fluttering... I think JDM MR is right for me at this point.

I'm going to Pruven tommorrow so they can check it out... it seemed like my cam timing was fine.... At full boost or under a load my car runs great.. It pulls hard and takes off like a rocket. At low rpms my car stumble and eventually stalls out.. especially reversing.

Sigh... I am getting P0171 sys too lean code like always but now I'm starting to get that p0134 heated oxygen sensor no activity detected, p0131 heated oxygen sensor voltage low <--- thats a new one.

Tons of black smoke comes out from exhaust when I'm taking off I can even see it from my mirrors, it smells horrible.. From looking at the codes it could be very well possible my 02 sensor is dead but why and what the f_uck, After my cam, fuel pump, ECU flash.. did any of those cause my 02 to go bad?... I don't want to pay $300 dollars to get that replaced that's BS and I don't want this happening again it does need to be replaced... is how my car is running so rich polluting my 02 sensor and that's why it's dying? I don't even know if my car is running rich because of the failing 02 sensor... did it happen before or after... because I never had a CEL until I did all of those things.

I am so convinced its the tune.. I've done so much and still having problems... sigh...

Nov 4, 2005 | 03:38 PM

#33

Curt@MrLed

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From: A.K.A. DaFarmer

youre a kid that says it all..

Quote:

Originally Posted by ev08buoy

I'm trying to run alky on my car so I can boost 25+ boost (in the near future)... that's why I see the MR unsuitable... I mean I hear lots and lots of good things about it but I just need something that holds more.

Cams really changed everything, I felt as if I could any BOV i wanted.. when my car was close to stock..

After seeing how hard my 272 pulls, "sound" could never beat that.

You know what.. after all this hell I think I might just go with the MR bov.. I mean no complaints.. I'll just run under 25PSI and save money?

That's exactly what I'm thinking... how can 50/50 beat fully recirculated... especially if you have cams it makes it even harder to get a BOV that makes your car run well...

I'm a kid.. I just want to have fun, I like to win drags, I like to smoke mustangs, camaros, corvettes, and any v8

Nov 4, 2005 | 03:41 PM

#34

ev08buoy

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From: Boston

A hard working kid with a good job, if not that I wouldn't be driving an Evo that's for sure!

Last edited by ev08buoy; Nov 4, 2005 at 03:50 PM.

Nov 4, 2005 | 03:56 PM

#35

bigjhoney

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From: philly/bucks

Quote:

Originally Posted by Warrtalon

Any problems with the JDM MR DV can be attirbuted to installation or a bad valve. There is no way a 50/50 valve can work BETTER than the fully-recirculating JDM MR DV.

I understand what your saying. I can assure you I didnt install it wrong, im not an asshat. It may be a bad valve problem, but ive had 2 different ones and both gave me the same problems.. ocassional stall when feathering clutch, boost surge, my car just didnt like it. The aps dual vent has given me no problems.

Nov 4, 2005 | 04:46 PM

#36

alex s

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From: las vegas, NV

edit: are you using the flash exclusively, or the SAFC-II ?

Nov 4, 2005 | 08:10 PM

#37

05-EVO-GSR

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My "stock P.O.S." BOV holds 24 psi just fine.

Nov 4, 2005 | 09:25 PM

#38

PureEvoL

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From: Scottsdale, AZ

Dude just get your car tuned. I did im runiing HKS and 272's no problems!

Nov 4, 2005 | 09:37 PM

#39

Warrtalon

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From: Long Island, NY

Quote:

Originally Posted by bigjhoney

I know you're not an asshat, and if you had the problem with 2 separate JDM MR DVs, then it most likely wasn't caused by bad valves. You're probably right when you say "my car just didn't like it." Something in your setup was causing the MR DV to give you problems, because it does not cause any stalling or surging problems. It should behave exactly like the stocker...mine sounds the same, acts the same, drives the same. You wouldn't know I had one if you didn't see a silver thing connected to my intake...

Nov 5, 2005 | 02:14 PM

#40

dryad001

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From: Oak Creek, WI

I really don't think it's your bov. Who tuned your car? Did you check the plug for the MAF? There might be water sitting in it, happened to me more than once.

Last edited by dryad001; Nov 5, 2005 at 02:16 PM.

Nov 5, 2005 | 02:22 PM

#41

Rez90

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From: Flemington, NJ

HERE IS YOUR SOLUTION......GREDDY TYPE S WITH THE SMALL SPRING REMOVED. I HAD IT...I LOVED IT....I HAD NO PROBLEMS WITH IT....I HELD 25 PSI TO REDLINE AND MADE 430 AT THE WHEELS WITH IT....WITH 272'S

I HAD ABSOLUTELY POSITIVELY WITHOUT ANY QUESTION......NOT A SINGLE PROBLEM

hope that helps

oh and for anyone who says the spring mods are a waste of time....before i removed the spring.....my car stalled and shuttered while crusing....after i removed it.....all the problems dissappeared.

Last edited by Rez90; Nov 5, 2005 at 02:25 PM.

Nov 5, 2005 | 02:26 PM

#42

Rez90

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From: Flemington, NJ

if you continue to have problems while at idle....i would get your ECU retuned because at that point.....your BOV clearly isn't the problem

Nov 5, 2005 | 10:06 PM

#43

95GSXtoEVO8

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From: RI

I had problems with my MR bov also. It would stall sometimes when backing out in reverse and then braking and clutching at the same time. Also I would get some fluttering when boosting to like 2psi and letting off quickly. That was a year ago and I remember reading several posts of people saying the same thing.

Once you start modding, there's so many variables that come into play that I believe it's best to go with an adjustable BOV so that you can compensate. A decrease in vacuum when upgrading your cams is an example of a mod that could effect BOV operation.

Nov 6, 2005 | 06:01 AM

#44

Z1 Performance

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From: Long Island, New York

there is abosolutely zero need to adjust a blow off valve - they are either installed properly, or not, or your car is tuned properly, or not.

Nov 6, 2005 | 06:42 AM

#45

emperor_gp

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From: San Diego, CA

Get the TOMEI bov.. its a jdm mr bov with forged internals that will hold upwards of 30psi.

Quote:

Originally Posted by ev08buoy

Atleast this is what I think it's saying, If people have been following my problems with my 272's for weeks now I'm going to Pruven tommorrow to see what they can do....

Before that I'm trying something I never did before which I should've in the first place, after doing some research on the forum... I found very little information about this... Infact I found one thread with one post on this problem and noone really replied back.

I had HKS SSQ vented before my 272 cams... loud as ****, no problems or very little "unnoticeable" problems on my car..

Added cams... Hi check engine light, Bye driving my car

Worst of all... constant stalling, idle dipping low from time to time.. infact I really care less of my idle... JUST the stalling.

I used to like loud BOV's,.. but now I don't care.. BOV's are waste of money and time to deal with.... I already went through 2.. not bout to make another mistake.

I NEED A BOV THAT PEOPLE HAVE TRIED WITH 272 CAMS.. I want absolutely no problems with that..

I noticed that one posts I read.... someone stating... Wether it's.. Vented, Recirculated, Adjusted the screw in or out, Single spring or Dual spring.. I stall all the time with my 272 cams.

<--- same thing here.

I don't want to keep my stock plastic diverter valve and I'm not interested in the JDM MR.. need something that holds more than 23 psi please

The reason I got another recirculating BOV is because I refused to go back to my stock BOV.. i just dont like it but if it brings back my drivability I'll take it temporarily...

Now to end my BOV dilema... I'm looking at APS but I don't know if it can work with 272 CAMS

Someone show me the way.........

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