xrdreaming Lifetime Members 1,693 Member For: 21y 11m 8d Gender: Male Location: Melbourne Posted 29/05/04 10:01 PM Share Posted 29/05/04 10:01 PM I am located Syd nth shore.Thus proving, once and for all, where God's country really is Yes, Mexico! Link to comment Share on other sites More sharing options...
Blown BA In Your Face Member 6,195 Member For: 21y 9m 28d Gender: Male Location: Peninsula Posted 30/05/04 12:29 AM Share Posted 30/05/04 12:29 AM I am located Syd nth shore.Thus proving, once and for all, where God's country really is Yes, Mexico! Hey puncho ....ihhhppp where the tequila Link to comment Share on other sites More sharing options...
XR6ISM ASHA - Anti Stooge Hunter Association Member 535 Member For: 21y 6m 25d Location: Sydney Bronx :) Posted 30/05/04 06:16 AM Share Posted 30/05/04 06:16 AM Good old forums, its only a matter of time before all threads go off topic LOL Link to comment Share on other sites More sharing options...
sixfan Flaccid Member Donating Members 2,503 Member For: 21y 7m 16d Gender: Male Location: NOONAMAH, go figure..... Posted 30/05/04 10:15 AM Share Posted 30/05/04 10:15 AM YUP,Well sorry to go back on topic, but isn't the factory unit pretty good? If it fails I'd consider an aftermarket unit, but, I'm not heading out to get one for the sound effects alone... Link to comment Share on other sites More sharing options...
XR6ISM ASHA - Anti Stooge Hunter Association Member 535 Member For: 21y 6m 25d Location: Sydney Bronx :) Posted 30/05/04 12:37 PM Share Posted 30/05/04 12:37 PM YUP,Well sorry to go back on topic, but isn't the factory unit pretty good? If it fails I'd consider an aftermarket unit, but, I'm not heading out to get one for the sound effects alone... the theory behind it is that when the valve opens up, it releases the extra pressure instead of sending it back to the turbo, at which point it hits the turbine and goes out the filter........releasing the pressure means that theoretically your turbo is allowed to free spin untill the throttle opens up again, therefore reducing the amount of lag between the gear changes.How true this is I dont know, but from what ive been told the factory unit is a 5 dollar off the shelf bosch part which is also used in the audi a4. Link to comment Share on other sites More sharing options...
Guest surreal_jippo Guests Posted 31/05/04 07:20 AM Share Posted 31/05/04 07:20 AM A few guys have tried these on the Jap turbo cars... the main plus about hte model of BOV obviously is the ability to control its plumback/atmospheric venting capabilites. This SHOULD fix the common backfrie problem found when replacing a sotck plymback item for a atmospheirc vetning BOV correct? Wrong... after checking out a few of them fitted out on some fairly modified cars, we came to the conclusion that they weren't as good as the manufacturer states... there is still a backfire issue, casuing richness and puff's of black smoke on gearshift despite having the BOV set to about 40-60 which should allow enough air to bypass back into the intake system adn counterweight the fuel being dumped regardless. Very good concept I must admit, but not 100% satisfied with results yet. Pretty much teh same as any aftermarket BOV, which means a tune is needed to fix the richness on shift to compensate for the atmostpheric vent. Good to hear though its working for you. Link to comment Share on other sites More sharing options...
XR6ISM ASHA - Anti Stooge Hunter Association Member 535 Member For: 21y 6m 25d Location: Sydney Bronx :) Posted 31/05/04 07:38 AM Share Posted 31/05/04 07:38 AM (edited) A few guys have tried these on the Jap turbo cars... the main plus about hte model of BOV obviously is the ability to control its plumback/atmospheric venting capabilites. This SHOULD fix the common backfrie problem found when replacing a sotck plymback item for a atmospheirc vetning BOV correct? Wrong... after checking out a few of them fitted out on some fairly modified cars, we came to the conclusion that they weren't as good as the manufacturer states... there is still a backfire issue, casuing richness and puff's of black smoke on gearshift despite having the BOV set to about 40-60 which should allow enough air to bypass back into the intake system adn counterweight the fuel being dumped regardless. Very good concept I must admit, but not 100% satisfied with results yet. Pretty much teh same as any aftermarket BOV, which means a tune is needed to fix the richness on shift to compensate for the atmostpheric vent. Good to hear though its working for you.yeah mate, dont forget one thing though, our cars use MAP sensors not Airflow meteres, which means this issue doesnt apply to us. My BOV in my car is open to full atmospheric and the car does not backfire.On your note though, one of my mates with an S15 has the same BOV as mine and he does have the back firing issue your refering to when the valve is adjusted. He can adjust is to a certain degree, but anything after that and he starts having problems. Edited 31/05/04 07:42 AM by XR6ISM Link to comment Share on other sites More sharing options...
Guest surreal_jippo Guests Posted 31/05/04 08:11 AM Share Posted 31/05/04 08:11 AM Yeah spot on dude... forget to mention the AFM set up rather than MAP. So any atmo BOV would be perfect for the XR's ey. oops lol. A question then does anyone know if running a Unichip allows you to drop the AFM and run a MAP sensor instead?? This would be ideal for a lot of jap import cars of which 85% run AFM's. If so whats a MAP sensor worth to use for that sort of application? Link to comment Share on other sites More sharing options...
XR6ISM ASHA - Anti Stooge Hunter Association Member 535 Member For: 21y 6m 25d Location: Sydney Bronx :) Posted 31/05/04 09:54 AM Share Posted 31/05/04 09:54 AM Yeah spot on dude... forget to mention the AFM set up rather than MAP. So any atmo BOV would be perfect for the XR's ey. oops lol. A question then does anyone know if running a Unichip allows you to drop the AFM and run a MAP sensor instead?? This would be ideal for a lot of jap import cars of which 85% run AFM's. If so whats a MAP sensor worth to use for that sort of application? LOL yeah Atmo BOV on the XR is fine............as for jap cars , yeah you can get rid of the AFM.I have a couple of mates who have done this with their 180's and skyline. They all used after market computers including Power FC, EMS and Autronics........im not sure on the specifics as to how the computer gets this data, but all 3 have no AFM. Im not sure about the uni chip to be honest, your best bet would be to PM Peter (his nick is APS)..he should be able to tell you more about the unichipMight have to do some research into this! Link to comment Share on other sites More sharing options...
Scruffman Member 255 Member For: 20y 11m 22d Gender: Male Location: Prestons NSW Posted 31/05/04 12:12 PM Share Posted 31/05/04 12:12 PM Excuse my ignorance on this whole issue but I would like to get something cleared up for myself.The BOV fitted to out cars lets the pressure out of the pipe to stop the turbine from slowing down due the the buildup of pressure. THe bov opens which basically pipes the pressure back through the plumbing into a pipe.What pipe is it that it goes into. Someone has suggested ot me that this plumbing atucally goes back to aid the turbine to turn by re introducing the air flow back in into the good side of the turbine. Can someone please give a bit of description or clear this up as with my thinking in this the BOV to atmosphere is just wasting that valuable pressure. The T comes with a BOV as standard so on unmodified cars are we actually losing performance by doing this - blowing off to atmosphere. The comment we got back from GFB seems to be correct when talking about a car the has no BOV fitted at all form the sense has having no BOV at all does effect lag etc etc.Ohhh im so confused my head is going to explode.Wayne Link to comment Share on other sites More sharing options...
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