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  1. Ah forgot about the shotgun high pressure pump on...

    Ah forgot about the shotgun high pressure pump on yours! OK well 750whp or bust! Go break something. :)
  2. In for the results. With hybrids I've seen issues...

    In for the results. With hybrids I've seen issues trying to tune them up around 28-30psi where back pressure is so high very minor dutycycle changes result in huge boost swings. Definitely easy to...
  3. Thread: Which flash?

    by Terry@BMS
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    I would guess it will be OK, the log would...

    I would guess it will be OK, the log would confirm it. Or if logging is not for you just go with the PUMP as we know that's fine for your situation. Either way you're not going to hurt much just may...
  4. Thread: Which flash?

    by Terry@BMS
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    Once you add in the back end flash and then...

    Once you add in the back end flash and then enable mode 4/2 telling the JB4 a back end flash has been loaded, the map definitions change. While you can still use map5 you may find map2 is the best...
  5. Thread: Which flash?

    by Terry@BMS
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    I'd start with the RACE JB4 back end flash as...

    I'd start with the RACE JB4 back end flash as with your fuel you should be able to pull it off. It offers a little more timing than the PUMP flash. Then evaluate map2 which is around 17psi.
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    This isn't our thread. Some of the information...

    This isn't our thread. Some of the information was posted here: http://www.n54tech.com/forums/showthread.php?t=30708

    The rest is spread around several other threads on n54tech. Feel free to ask...
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    It was widely discussed maybe a year ago. Start...

    It was widely discussed maybe a year ago. Start reading up on the old threads. :)
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    The adjustment is different between the PUMP and...

    The adjustment is different between the PUMP and E85 maps but some adjustment was made to both. Overall I've been very happy with the changes, having had a chance to view literally hundreds of logs...
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    6/6/15 MHD Map Release...

    6/6/15 MHD Map Release Adjusted knock tables to reduce false knock, adjusted load targets to undo changes that were meant to reduce false knock that are now no longer needed. Other minor fixes and...
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    The back end flash maps are posted to the BB and...

    The back end flash maps are posted to the BB and MHD back end flash map threads on n54tech and versioned so you can scroll through previous versions. There is also a link to the community XDF Hub and...
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    The vacuum WG system is pretty awesome. The only...

    The vacuum WG system is pretty awesome. The only control system I've seen that is better is BMW's new EWG system.
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    I have not tried pushing a lot of boost at 70psi...

    I have not tried pushing a lot of boost at 70psi fuel pressure so its entirely possible that the HP cap is 100whp or something like that. Still, having a hard time reconciling the injector capacity...
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    Well MOTIV has a MOTEC on their race car right?...

    Well MOTIV has a MOTEC on their race car right? How much power can they support with it? I know it's running N55 injectors, are they theorized to flow the same or less?
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    We have the knock sensor feedback desensitized to...

    We have the knock sensor feedback desensitized to various degrees with the JB4 back end flash maps, which was done to counter the false knock we've frequently seen. It's been that way a year at least...
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    The VANOS is specific to the manifold anyway and...

    The VANOS is specific to the manifold anyway and we know the factory inspired high overlap setup has been doing wonders for the twin scroll setups. So I imagine they would run that. I could have...
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    B58: BETA tuner came out a month or so ago, there is a...

    BETA tuner came out a month or so ago, there is a thread on n54tech we maintain. We have an intake coming out this week. :)
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    Did they work out the current theoretical...

    Did they work out the current theoretical injector flow? Is that the 700cc figure you quoted above? That would be maybe 1/4th of the previous estimate I had seen years ago.

    Has anyone ever flow...
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    With the method of manifold construction it...

    With the method of manifold construction it doesn't seem to me it would be that difficult to do. I'm just continually impressed with the VM twin scroll spool with larger turbos. Doesn't PTE make a...
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    There are a lot of factors at play here with...

    There are a lot of factors at play here with regard to spool and I'm trying to conceptualize which of those are higher leverage. Just to summarize some of the variables.

    We know by altering the...
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    That sounds reasonable. I'm just trying to get my...

    That sounds reasonable. I'm just trying to get my finger on the pulse of the details with this one. The mass flow out the exhaust port has to be equal to the mass flow in the throttle body plus the...
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    So the theory goes that 68/84 increases overlap...

    So the theory goes that 68/84 increases overlap and exhaust flow at lower RPM allowing for an improved spool. But with a single scroll exhaust back pressure during spool is higher and thus you get...
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    terry@burgertuning.com

    terry@burgertuning.com
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    I don't use PM systems, too much communications...

    I don't use PM systems, too much communications to follow up on, sorry. You can always email me though.
  24. When the single turbos came out prior to port...

    When the single turbos came out prior to port injection several of us hit 700whp on race gas + meth. It's doable but unless the meth nozzles are properly placed gets sketchy on fuel trim bank to bank...
  25. With the JB4 controlling the port injection now...

    With the JB4 controlling the port injection now we have a lot more flexibility. For example we can set the system up to dynamically reduce port injection flow as a function of meth flow, fuel trims,...
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