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M35 Bov?

spoolin12
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m35stagea Community Regular

m35stagea

Posted
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so i did the coke can mod tonight and seemed to get rid of the farting issue... How bad is it not having the blowoff functioning? Should i look into the grub screw mod?

There is mechanism why it may not be good..

But its pseudoscience at best no one really knows and there are many people on either side of the fence... Personally i have never run them in any of my drift cars. 20+ psi. Had no dramas.

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ECR33_RB25DET
ECR33_RB25DET

Did the coke can mod. Very straight forward. Great results; eliminated the farting, seems to be slightly more responsive, got the fully sick VL flutter sound which is manageable. Certainly turns head

ECR33_RB25DET
ECR33_RB25DET

Installed the Turbosmart Kompact plumb back BOV.....you can still make some funny flutters with it but no farting and under load releases pressure the way a BOV should.....

Sticker Dude Newbie

Sticker Dude

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yeah well we purposely never ran one on the CTS Drift Car as we found it held the boost better that and the fact it was one less part we had to worry about failing. But i was just worried on a stock car such as these it might have some issues. i guess ill wait n see...haha

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andy65b Veteran

andy65b

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Docile... that was not problem when I did that mod.

I found it good when on of off the throttle but when cruising on the Highway at 115kmh it tended to stutter and was very uncomfortable. Had to stop on the trip to remove the grub screw. Fortunatley it only takes 5 minutes to remove.

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ECR33_RB25DET Community Regular

ECR33_RB25DET

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Did the coke can mod. Very straight forward.

Great results; eliminated the farting, seems to be slightly more responsive, got the fully sick VL flutter sound which is manageable. Certainly turns heads when people look that it is a wagon.

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spoolin12 Collaborator

spoolin12

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As Andy mentioned, wait till you take it on the highway. Drives like a dog.

I'm not exactly sure what the fix is... but once I changed the intake and tuned it with the E-Manage I no longer get the farting... Have been driving it around for about a year with no issues.

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ECR33_RB25DET Community Regular

ECR33_RB25DET

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As Andy mentioned, wait till you take it on the highway. Drives like a dog.

I'm not exactly sure what the fix is... but once I changed the intake and tuned it with the E-Manage I no longer get the farting... Have been driving it around for about a year with no issues.

Thanks for the heads up. So far had it cruising at 90kmh at constant speed, seemed quite ok, will see how it goes over 100kmh.

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spoolin12 Collaborator

spoolin12

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Take it on a long hill and when you try and maintain a steady speed. When you ever so slightly back off the car will begin the shudder.

It drove me nuts. That and the stupid sound. Would be fine if it was a 1000kw beast... but its a wagon... with alot less power.

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ECR33_RB25DET Community Regular

ECR33_RB25DET

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Take it on a long hill and when you try and maintain a steady speed. When you ever so slightly back off the car will begin the shudder.

It drove me nuts. That and the stupid sound. Would be fine if it was a 1000kw beast... but its a wagon... with alot less power.

Took it for a drive today across Melbourne (Moorabbin to Geelong and back). Kept it steady at intervals of 90kmh, 100kmh, 115kmh and 120kmh. If you are steady on the throttle, not like a taxi drive on/off, I could not fault it.

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iamhe77 Grand Master

iamhe77

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Took it for a drive today across Melbourne (Moorabbin to Geelong and back). Kept it steady at intervals of 90kmh, 100kmh, 115kmh and 120kmh. If you are steady on the throttle, not like a taxi drive on/off, I could not fault it.

Have to agree. I ran mine with the grub screw for many 10's or thousands of kms on highway, never an issue.

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sav man Grand Master

sav man

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My car has the super hectik vl fluttaz, but I can't work out why. I just assumed it was an a/m bov, and never got round to looking at it.....until my turbo blew.

I've pulled the BOV off and checked all the lines to make sure someone hadn't blocked them for teh fluttaz. Do the BOV's fail very often?

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bennyb110 Explorer

bennyb110

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My car has the super hectik vl fluttaz, but I can't work out why. I just assumed it was an a/m bov, and never got round to looking at it.....until my turbo blew.

I've pulled the BOV off and checked all the lines to make sure someone hadn't blocked them for teh fluttaz. Do the BOV's fail very often?

My std BOV did similar, [fully hectic sound included] annoyed the crap out of me and made the car surge on light throttle transitions I took it off to check it out. Ended up having a ruptured diaphragm, I replaced it with std BOV off another VQ25det and the problem was solved, driving the car was so much better.

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bigkevracer Grand Master

bigkevracer

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now just wondering whether to keep it or put on a new stock BOV as I do not want to kill the turbo.....

I replaced mine with a Turbosmart Dual Port. Theo has the same one, and Scotty has a Turbosmart Kompact. Little bit of flutter but if you're smooth it's hardly noticable.

I didn't like the idea of replacing one BOV having issues with a second hand one when they're all prone to doing this.

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