How many of you have non recirc. bov's?

[j-z]

thanks man, that first linked was really useful. now i know what to look for when doing a brake upgrade and lsd if i get one that doesnt have it already. i wonder if that guy has any oil seaping past the seals in his turbo. the way his center section is clocked is whack. anyways thanks im gonna start a new thread and get out of this guys.

[TurboKA37]

they guy whos site that is, is a active member here in the KA-T section. his user name is orion

[C-Kwik]

yes i know that. the guy up there ^ was saying how at about 5.0v is the maf limit. i was kinda relating that with the honda map cause at a certain voltage the map wont read any higher. get it? so the maf does reach a point to where it cant read past a certain voltage correct? with the maf it has nothing to do with pressure like the map sensor does. its all about how much air is actually moving through the *****. so turbo sizes actually play a role in this. well, how much ever cfm is being flowed. so does the maf start acting all weird and make the engine run like *** when it goes past the max reading? if so is there anyway around this to be able to boost more?

The Stock ECU will likely max out the injectors before it receives a 5V signal. Depends on how much boost you are running. At 6.5 psi, my stock injectors were at over 90% duty cycle at about 4600 RPM. From that point, it stabilizes at 5 volts and failed open through redline.

My understanding is the stock MAF runs a little over 5 volts. My E-Manage doesn't provide read or provide a signal beyond 5 volts. Not sure if the Stock ECU does either.

Either way, once it maxes out, The ECU will just be holding the injectors all the way open anyways. It should run fine, but the more air or RPM's you run, the leaner it will become. Using a hacked MAF will provide a lower reading to the ECU, so and provided the injectors are large enough, and the MAF signal is calibrated correctly for the injectors, you shouldn't run into a problem.

[rco8786]

I was just thinking... When you let off the throttle quickly, aka b/w shifts, wouldn't some air bounce off the tb and go backwards through the MAF?(This is for a blowthru) It seems like this would cause some detremental defects and the air is rushing past the MAF in the wrong direction towards the bov.

[TurboKA37]

no. think of it as air is filling the cold pipe rather than bouncing off of the TB. the bov realizes this pressure and releases air that is coming from the turbo not backwards from the TB

[rob808]

i jus read the ka24development turbo story and it was a good feeling knowing that it can b applied to SOHC owners as well.clean looking turbo install too.BTW whos car was that?

[rob808]

NM i found out who's car it was.good job orion:thumbup !now can anyone give or show me a link to a story like that of orions set up that shows a SOHC instead?

[Jonny 290]

the closer your MAF is to the TB, the less 'blowback" you will have. I doubt it's an issue - that volume of air is incredibly small and it wouldn't measure much at all coming back through. If anything, it'd make it run a little rich, but not too much, and only for a moment.

the s13 maf is designed actually to combat blowback - it appears as though orientation is very important with it, more so than the s14 maf. there's a definite inlet and outlet side. I'm getting excited about my dual MAF project - I get paid next week and am promptly beginning work on it then.