Nissan 370Z Forum - View Single Post

chuckd05 · 02-13-2012, 08:33 PM

In the N54 BMW world , with BMS' Meth kits with their built in FSB (fail safe that reads meth flow and tells JB4) and JB4's tuning/piggy back capabilities it's extremely safe.

Meth injection acts as an octane adder, cools your intake charge drastically, and helps keep your engine clean (an added bonus with the n54's direct injection causing valve build up)

In my car my jb4 sees the meth flow through the kits "FSB" and will only add additional boost when it sees the proper flow. The JB4 (piggy back tune) has the capabilities to have on the fly boost control through the ECU based on various info in the ECU's canbus values that it constantly monitors. It allows you to datalog so many values like afr, timing, boost target, actual boost, duty cycle, intake temp, oil temp, gear, meth flow, and many many other things and its also using all of this info on the fly and cutting boost or spark when it sees fit.

Meth could be used without adding any extra PSI and would be benefitial with very very minimul drawbacks but many use it to raise boost as well as its octane benefits allow for this. If you do not set up your system correctly or cut corners this could be dangerous if your meth flow was to be interupted. In the BMW n54-n55 (twin turbo engine and than the newer single turbo engine) world with the BMS kits from terry at burger tuning, as long as everything is hooked up correctly , the kit is about as perfect (safe) as you can get with any meth setup.

the JB4 also has Nitrous intergration that works the same way and guys have used it without fail with insanely good results 130mph + traps with very small jets because of how well jb4 sees the cars values and throws the proper boost at it as nessasary and cuts boost when nessasary, its an extremely interesting ECU and it allows for great tuning capabilities but in some aspects the ECU's advancement combined with the BMW DI fuel system actually is a drawback for those looking to make more power than 500 whp

02-13-2012, 08:33 PM	#347 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	In the N54 BMW world , with BMS' Meth kits with their built in FSB (fail safe that reads meth flow and tells JB4) and JB4's tuning/piggy back capabilities it's extremely safe. Meth injection acts as an octane adder, cools your intake charge drastically, and helps keep your engine clean (an added bonus with the n54's direct injection causing valve build up) In my car my jb4 sees the meth flow through the kits "FSB" and will only add additional boost when it sees the proper flow. The JB4 (piggy back tune) has the capabilities to have on the fly boost control through the ECU based on various info in the ECU's canbus values that it constantly monitors. It allows you to datalog so many values like afr, timing, boost target, actual boost, duty cycle, intake temp, oil temp, gear, meth flow, and many many other things and its also using all of this info on the fly and cutting boost or spark when it sees fit. Meth could be used without adding any extra PSI and would be benefitial with very very minimul drawbacks but many use it to raise boost as well as its octane benefits allow for this. If you do not set up your system correctly or cut corners this could be dangerous if your meth flow was to be interupted. In the BMW n54-n55 (twin turbo engine and than the newer single turbo engine) world with the BMS kits from terry at burger tuning, as long as everything is hooked up correctly , the kit is about as perfect (safe) as you can get with any meth setup. the JB4 also has Nitrous intergration that works the same way and guys have used it without fail with insanely good results 130mph + traps with very small jets because of how well jb4 sees the cars values and throws the proper boost at it as nessasary and cuts boost when nessasary, its an extremely interesting ECU and it allows for great tuning capabilities but in some aspects the ECU's advancement combined with the BMW DI fuel system actually is a drawback for those looking to make more power than 500 whp __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-) Last edited by chuckd05; 02-13-2012 at 08:37 PM.