blow off valve on copper s

[beef]

hi all just wondering if anyone have fitted or know anyone have fitted a BOV on S and how would it sound like compare to other turbo cars and is there any negative or fitting it to S
thx for ur reply

[TT_Convert]

Turbo?

[Richard Crofts]

urr... beef the S is Supercharged not turbo'd. I assume you mean a dump valve when you say BOV? Eg. dumps excess gas as the turbo speed drops (changing gear rev drops etc). Supers don't use dump valves as they don't use gasses in the same way as a turbo, they deliver constant power as they are not rev reliant as a turbo is (no spooling time).

[GTT 280]

It's nearly as bad as the guy who asked me - Is the Evo 4wd ???

I just tutted and walked off. he's not worthy of my words.

you gotta laugh.

oh, and you gotta think - the mini would sound awesome if it was able to dump.

Vrrrrrrrrrrrrrrrrrrrrrrrrrrrm Ktschhh.

[JackAss]

umm.. yes.. it could be done... I was planning to put one in too... but its going to risk getting the engine light on... I'll let you know how it goes when I get it in

[Revolution Mini Works]

Quote: Originally Posted by JackAss

umm.. yes.. it could be done... I was planning to put one in too... but its going to risk getting the engine light on... I'll let you know how it goes when I get it in

I can tell you it has already been done on the twincharge car.... 1 blowoff for turbo and 1 for supercharger

[Mike Edwards]

I suppose there might be merit in venting surplus boost rather than feeding it back into the supercharger inlet - it would help keep the charge temperatures down.

It's likely to be rather loud though - and not just when it's venting.

Kuhmo - how much oil vapour comes out? Or have you completely replumbed?

[Revolution Mini Works]

Quote: Originally Posted by Mike Edwards

I suppose there might be merit in venting surplus boost rather than feeding it back into the supercharger inlet - it would help keep the charge temperatures down.

It's likely to be rather loud though - and not just when it's venting.

Kuhmo - how much oil vapour comes out? Or have you completely replumbed?

I still have the BPV on my twincharge but the other SPI car has made a custom pipe from the throttle body that takes out the BPV. It was boosting it open sometimes at 25-30psi.

I will probably replace my tube also in the next few months. He has been running this set-up for more than a yr and a half.

The tube itself is probably worth some power on these twincharge kits but I doubt there is too much to gain from it on a slightly modified MCS. The mini just doesnt make enough HP to take advantage of all of the extra air. Now when you start boosting over 20psi the advantages become very obvious.

[Cape Cod MINI]

Hi Kumho Kid,
I'm running the twincharge too w/ two stage boost. Second stage maxes at 21.5 psi. What a ride!
I'm having issues w/ detonation. Have fried cylinder one plug nicely at one point. I have a couple of tuning maps but it still isn't right or running at full potential. I'm running the tank almost dry of current fuel and putting in 5 or 6 gallons of 100 octane this coming week to see if that stops the detonation. I'm hoping that will then give us a clue on where to tune things.
How are you doing with the summer heat and the turbo?

[Revolution Mini Works]

Quote: Originally Posted by Cape Cod MINI

Hi Kumho Kid,
I'm running the twincharge too w/ two stage boost. Second stage maxes at 21.5 psi. What a ride!
I'm having issues w/ detonation. Have fried cylinder one plug nicely at one point. I have a couple of tuning maps but it still isn't right or running at full potential. I'm running the tank almost dry of current fuel and putting in 5 or 6 gallons of 100 octane this coming week to see if that stops the detonation. I'm hoping that will then give us a clue on where to tune things.
How are you doing with the summer heat and the turbo?

You are running the Helix kit.... correct?

[minigolf]

[Tit]

haahahaha...

[enzothemaddog]

WWWWOOOGGGGGGG!!!!!!!!!!!

Pffffttttt...tsshhhhhhhh.....brdbrdbrdbrbdbrbdrbbr d.

[IML337]

can you make an MP3 of those noises Nick?

[enzothemaddog]

Quote: Originally Posted by IML337

can you make an MP3 of those noises Nick?

CAN DO...

I'll always remember when my Bro had an Sti engine ($$$) imported for his 97' (B4 Sti's were sold in OZ) and put in his rexxy. He had an MRT BOV. Sounded cool for about 3 hours then got REALLY annoying.

.....doing an Ipod recording of my ppffft....tsshhhh..brrrbrrrrbbrrrbrbr..tsh