Mount BOV on hot side of intercooler?

[krummel21]

I was wondering if it will hurt anything if I mount the BOV on the hot side of the intercooler. This would be the best option more since I could keep my water injection from hitting my GM MAf sensor and could still run a BOV with out re-circulation. If I put the Gm Maf anywhere but right next to the intercooler theres a chance that the water will roll down and mess with the sensor. This is probly a dumb questioin but is there anyhing inside a HKS SSQV that might melt from the heat?

Thanks

 

[e85_4g63]

Yes, you can put the BOV in the hotside, however it could shorten it's life with the high air temps coming out of the turbo so it's not advised. But it can def. be done.

 

[gofer]

Im not exactly sure what your setup looks like so Im not sure if this suggestion will even work... ive seen a DSM running a HKS SSQV on their LICP right before it goes up into the engine bay blowing it right out that opening next to the fog light cutout on the stock 2gb bumper and it was loud!!!
Anything to keep your $275 bov working... running on the hotside will work but how many bov's are you going to go through before you move it back to the IC piping on the cold side of the intercooler?

 

[krummel21]

Thats wear I would prefer to put it (right after intercooler) I'm just really afraid the water might come back on Sensor. Anyone have personal experience with mounting it there?

I've been reading on a couple other forums and people are saying that the good part about mounting it there is that you are getting rid of hot air before the intercooler which means less work for it and less heat soak. The other point they make is that it helps with boost spiking. Any truth to this?

 

[talonDSMerr]

Most will put the BOV as close to the throttle plate as possible for optimal release of the compressed air and to reduce the chance of compressor surge.

 

[partyboy25]

I had this exact same question! Only difference is that I would be doing it for a different reason. I am installing a Water to Air intercooler and the way I plan on having it set up, there is no metal piping for me to mount it to after the intercoller. Infact, there will only be 2 sections of metal piping and they will only be about 4-5 inchs in length.

talonDSMerr - Even if the BOV is on the hotside piping, it is still before the turbo. So it would still be preventing compressor surge, right?

 

[habitatguy187]

Even if the BOV is on the hotside piping, it is still before the turbo. So it would still be preventing compressor surge, right?

It would in theory, but when it's after the intercooler the air that doesn't escape out of the bov has a longer way to travel, esp. in the intercooler, so the air that was moving towards the throttle plate collides with air that didn't make it out of the bov, and it prevents compressor surge.

You could put it on the hotside, but I'd be too leary about it to try it.

 

[mschlanglv]

For what it's worth, turbo MR2s have the BOV mounted about 8" after the turbo from the factory. It is not the best place for it, but it can work.

 

[->PrOjEcTGS<-]

The Hyundai Genisis's CBV is mounted on the compressor housing!!! How's that for close to the turbo!!

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AMS promptly made a block off plate for this so you can run a traditional BOV.

 

[partyboy25]

ok...so if oem is doing it, then it cant be that bad...right...? Maybe even ok?

 

[SkylinesSuck]

Mines on the hotside. Might not be ideal for performance (doubt it actually makes much of a difference though) but it's not going to hurt anything.

 

[tkelly27]

I've run a blow off valve 8" from the turbo, and 16" from the throttle body. Same BOV (used a plug on the spot it wasn't at), same engine, same charge piping. There was absolutely no difference.

I could see the rubber on the SSQV getting hot, but you would have to be totally stupid to design a BOV to fail at temps above those seen post IC. What about cars without intercoolers at all?! Lots of people run without them and have no BOV failures. The non-intercooled dodges have plastic valves that are equidistant from the compressor outlet and the throttle body (again, about 8"). Mine had 250k miles @ 12-13psi on it before I took the whole system out to put an intercooler on it.

 

[partyboy25]

well, i guess im convinced that its ok...you brought up some good examples!