SA Greetings people.

[Bradleh]

Took her out on sat night with a mate and tried a couple boost launches (Felt unbelievable and he wasn't expecting that from a magna)

after this particular launch (check vid) i took off at the T junction and gave her a little bit, but as soon as it hit boost it felt like it also hit a brick wall... May be exaggerating a little bit but it felt like it would hit boost then the rate of acceleration wouldn't increase.

So this morning i went out and took her to the shops and it was still behaving the same, so when i got home i popped the bonnet and had a look over the Cooler Piping and tightened everything up.. one seemed loose, not exactly finger tight but still took quite a few turns to tighten..

Then i took it for another drive and she felt back to normal.... can it really be as simple as a slightly loose cooler clamp?

 

[naughtika]

when it felt like you hit a brick wall, that's the boost cut telling you to calm the feck down ..lol

you can fix this by getting it tuned, as the factory tune is very conservative and will try and avoid you from going higher than 14psi

 

[Bradleh]

Yeah i understand.. but my car is running stock boost. Therefore shouldnt be hitting boost cut... PS what is the
stock boost on vr4's?

 

[Vstar_83]

do you have a blow off valve or a bypass valve?

 

[Bradleh]

Blow off.. stock plastic one

 

[Vstar_83]

Blow off.. stock plastic one

That's what I need to get, and the standard ones from bosch have been discontinued. I'm probably going to go with the turbo smart pb valve. Both my hoses are plugged up, so I'm not worrying about boosting at all as I don't want to damage the turbo. But in typing that I done a bit of searching today and found that a lot of people don't even have a BOV or even the bypass valve plumbed into the turbo. Haven't checked on this forum though.

 

[Bradleh]

Im going to get a stock evo 8 one.. they are metallic and bolt str8 on.. can get them thru the forum for about 150

 

[VR4STHOZ]

Yep tge evo 8 mr ones are the way to go.. i think most of us went to them

 

[Vstar_83]

Is there any difference between the normal evo ones and the MR ones?

 

[VR4STHOZ]

Unsure.. i just know its a metal one.. probably the same lol..

 

[Xoxide]

Some of the older Evo BOV are plastic too... the MR is metal.

 

[GMan]

Some of the older Evo BOV are plastic too... the MR is metal.

That's right -- no point replacing our plastic BOVs with another plastic one! The 8MR BOV is metal, as is the Evo X BOV. The Evo X one faces the right way, although it doesn't really matter.