Xtreme F6 Team Xtreme Donating Members 1,680 Member For: 20y 1m 1d Gender: Male Location: Perth Posted 19/12/06 10:01 AM Share Posted 19/12/06 10:01 AM Jason with all your years of experience in the tuning world why would you quote a power figure on a car that did > M6XR6T I've another run where I aborted the run as the car was at the top of the roller and almost came outanyone that knows anything about DD dynos knows the minute you come up on the roller your figure is in correct.Have you got a copy of the graph to show, would love to see it.Also when you did your pass at the track with your 393 tune what MPH and time did it run? Hope sharing answers to the following doesnt give away to many of your trade secrets Link to comment Share on other sites More sharing options...
2MUCHKW Member 350 Member For: 18y 10m 18d Posted 19/12/06 10:02 AM Share Posted 19/12/06 10:02 AM (edited) I guess the reason for the BOV's goes back to the days of bushed-bearing turbo's, and their slow spool up speed. Hence the need for one to keep the turbo spinning whilst changing gears.As for the extra throttle response - that's more than likely due to the extra 6-8 degrees of ignition timing over what it had.....did I mention the 408rwkw it pulled?Gonna have to see what I can squeeze out of it Friday.←Jason ... re the throttle responce I'd say having not having a BOV will be the major difference {forget about ignition timing} on a tight twisty mountain range road where your off the throttle for quite short durations {whilst braking} then accelerating hard again. This is because you still have allot of boost on tap and it has'nt all been bled of off by a BOV the moment you lift the thottle!Silly silly me - that's right you only drive your car fast in a straight line for 400 metes Edited 19/12/06 10:04 AM by 2MUCHKW Link to comment Share on other sites More sharing options...
bcl Toughest BA Turbo Lifetime Members 3,408 Member For: 22y 2m 13d Gender: Male Location: Sydney Posted 19/12/06 08:40 PM Share Posted 19/12/06 08:40 PM How much boost is it running? I've decided to change my mind on posting that info. Apparently it's not done as it gives away 'trade secrets'. .....In light of the 408rwkw it managed on Friday when I stopped the run I'm quite confident that I can now crank 430rwkw by lifting the boost a little more. I'll post the dyno sheet during the week.←I should have clarified my statement. The 392rwkw tune (as did the 408rwkw tune) overboosted (24+psi) so I didn't run it through to the end of the strip. Not enough time to do anything on a Friday afternoon. No point blowing an engine as you would agree. Hence the reason to look at over the next few weeks. Thanks for the scrutiny though.←I think it’s time to stop this blatant self-promotion, as you’ve still got a lot to learn about turbo car basics.You publish impressive dyno graphs and talk about ‘trade secrets’, by not revealing boost levels, and about raising boost more, and now in your latest posts (now removed) you reveal that these runs were using 24 lb boost…. Only after being questioned.And anyone that knows anything about turbo cars knows that factory blow-off valves and high boost levels are a very poor mix.It appears to me that you guys in WA are becoming a bit too competitive.Brian Link to comment Share on other sites More sharing options...
JimmyXR6T04 Member 1,299 Member For: 19y 8m 18d Location: Canberra Posted 19/12/06 10:47 PM Share Posted 19/12/06 10:47 PM How much boost is it running? I've decided to change my mind on posting that info. Apparently it's not done as it gives away 'trade secrets'. .....In light of the 408rwkw it managed on Friday when I stopped the run I'm quite confident that I can now crank 430rwkw by lifting the boost a little more. I'll post the dyno sheet during the week.←I should have clarified my statement. The 392rwkw tune (as did the 408rwkw tune) overboosted (24+psi) so I didn't run it through to the end of the strip. Not enough time to do anything on a Friday afternoon. No point blowing an engine as you would agree. Hence the reason to look at over the next few weeks. Thanks for the scrutiny though.←I think it’s time to stop this blatant self-promotion, as you’ve still got a lot to learn about turbo car basics.You publish impressive dyno graphs and talk about ‘trade secrets’, by not revealing boost levels, and about raising boost more, and now in your latest posts (now removed) you reveal that these runs were using 24 lb boost…. Only after being questioned.And anyone that knows anything about turbo cars knows that factory blow-off valves and high boost levels are a very poor mix.It appears to me that you guys in WA are becoming a bit too competitive.Brian←Brian,Out of interest sake, running 15psi to 17psi with the usual mods (injectors, cat, intercooler, fuel pump), is there any advantage in taking the factory BOV off? Or should I have it replaced with an after market unit? Or should I just keep the standard one on?? I do remember Simon (nizpro) talking about the BOVs, but damn it gets so confusing for the people who aren't so mechanically minded Link to comment Share on other sites More sharing options...
bcl Toughest BA Turbo Lifetime Members 3,408 Member For: 22y 2m 13d Gender: Male Location: Sydney Posted 19/12/06 11:09 PM Share Posted 19/12/06 11:09 PM Brian,Out of interest sake, running 15psi to 17psi with the usual mods (injectors, cat, intercooler, fuel pump), is there any advantage in taking the factory BOV off? Or should I have it replaced with an after market unit? Or should I just keep the standard one on?? I do remember Simon (nizpro) talking about the BOVs, but damn it gets so confusing for the people who aren't so mechanically minded ←My turbo cars usually run a minumum of 19lb boost, so items such as actuators and blow-off values are a typical mandatory upgrade. Factory bov may hold 15-17psi, but don't assume that they will all hold boost uniformly.Simon's views are documented at http://forums.nizpro.com.au/phpbb/viewtopic.php?t=764For any further discussion best to start a new topic.This thread has passed it's use by date.Brian Link to comment Share on other sites More sharing options...
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