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lol... come over. i have a nice little tool for that now, i did a few of mine tonight.
its in the garage tomorrow so ill do the rest asap
its in the garage tomorrow so ill do the rest asap
Yeh is was way, yup i got Intake topping 36c, then as soon as meth kicked in it stayed at 30c 
Very happy with that. EGT crept ovrer 900 twice only. Not many CFs at all, 215g/s. Injector duty cycle arround 82%. Fuel trim was -1.6 then BANG
Ill fix it to night and log on the way to Hayleys!!!
Very happy with that. EGT crept ovrer 900 twice only. Not many CFs at all, 215g/s. Injector duty cycle arround 82%. Fuel trim was -1.6 then BANG Ill fix it to night and log on the way to Hayleys!!!
This one was a lower intercooler!!! ever time im peaking at 25+ PSI, and its going to way belo 20 at the redline!! I did log boost, shoudl put them up really. I want a MBC that would get round it right?
jamiebennett81
Guest
Forge MBC is very good, if you are running off the N75 currently
you can dial in the same level of boost of course, but the MBC is a lot smoother and boost comes in harder.......seems a lot better on the butt dyno
I will be changing my N75 for my Forge MBC soon, once I get the chance to do some logs with the N75 and then change it over and compare logs against the MBC
jamiebennett81
Guest
on my gt2x it was (even if it was not quite working right)
so a k04 running more power, I would say it's definitely worth it on yours
did you notice an instant improvement with your MBC dave (if you were running originally off your N75)
also why is the car smoother and seems to perform better on the MBC over the N75, as the are just bleed valves?
I started using an mbc as I needed to control a huge boost spike from my turbo that was both dangerous and power sapping. With experiment, I eventually disconnected the N75 (left plugged in electrically). The N75 cycles on/off continually (duty cycle) and boost goes up and down (like a wave) as a result. An mbc keeps the boost level.
It isn't a bleed valve. Boost is kept from the actuator until the spring pressure is overcome.
With an mbc, you do get surging on part throttle. A good ebc will obviously do the job better.
what you describe dave on your n76 oscillation is a control issue.. which hardware can create of course outside of me7's hardware programmed pid control.
MBC was lazier to control than n75 when I have run them..
ecu control is N75 effectively full on until it see's a level of control boost. Achieving this by a leak from ball and spring is not the same level of control.. ball will start to push off its seat and continue to be pushed off its seat as boost rises, so the smoother onset is in my experience a slower response. not that that is bad, but it is different.
MBC was lazier to control than n75 when I have run them..
ecu control is N75 effectively full on until it see's a level of control boost. Achieving this by a leak from ball and spring is not the same level of control.. ball will start to push off its seat and continue to be pushed off its seat as boost rises, so the smoother onset is in my experience a slower response. not that that is bad, but it is different.
To get my head around it, the actuator is receiving no boost until the set boost level is reached, then it is fed boost and this is what opens the wastgate? If this is how it works, why does the n 75 had a 3rd barb going in to the TIP?
Simple way to remove the boost pressure from the N75, it's drawn out by the airflow in the tip. (also it makes it recirculatory system)
Ok so have read up on boost controlers so i dont have to annoy you with question but i still have a few .
So my now understanding is the wastgate opens at a set psi and the boost controler fools the wastgate by bleeding boost.
So im guessing the N75 bleeds boost back in to the tip so the engine does not see a air leak, like how you cant run a full atmospheric DV (Rob excluded).
So the N75 is a basic electronic bost controler.
So questions, Dave have you had any problems with that manual boost controler saying there is a leak?
Does the engine not go mental with the N75 unpluged / not reading boost? or do you have to leave it in with the Manual? How does this work?
.So my now understanding is the wastgate opens at a set psi and the boost controler fools the wastgate by bleeding boost.
So im guessing the N75 bleeds boost back in to the tip so the engine does not see a air leak, like how you cant run a full atmospheric DV (Rob excluded
).So the N75 is a basic electronic bost controler.
So questions, Dave have you had any problems with that manual boost controler saying there is a leak?
Does the engine not go mental with the N75 unpluged / not reading boost? or do you have to leave it in with the Manual? How does this work?
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