98MAX

I understand you would have to have exact bottle presure everytime to use it. And my car runs rich with just intake and exhaust, not lean. And can you control the fuel threw all the power band?

MardiGrasMax

iTrader: (14)

Sure!, but it wont help with the NOS. The NOS wont interfear with it either. It is just ment to be used for a NA car.

My 4DSC

It is not just meant to be used for a NA car.
Supercharged/Turbocharged cars are the best candidates for the SFC. NA cars can benefit from the SFC but HP increase will be minimal.

98MAX

Thats cool. I have to try some way to lean it out. It runs way to rich. you should find somewhere that sells 105 unleaded man, it runs great with the NOS.

SteveChicagoSC

The NA car can be leaned out more than a boosted vehicle.

MardiGrasMax

iTrader: (14)

Yea yea type o, I was trying to distinguish between on and off the NOS.

Your right thanks for catching it.

1MAX2NV

iTrader: (5)

I'm more interested in the memory settings. Ideally, you want to have 1 fuel map during NA (lean) and 1 fuel map during nitrous (a little rich). I don't think the Apexi Super AFC has memory settings. I guess a fuel pressure regular can do the same thing, but you would have to manually adjust it everytime. With Field AFC, press few buttons. You are ready to go.

MardiGrasMax

iTrader: (14)

Thats not really how you should do it, IMHO. You would set up your motor to operate at peak power with an AFC, with out the NOS. Then set up the NOS so it will run a little rich, rich is better than lean. But not too rich or you loose all the NOS power and in extreme cases you can wash the cylinder walls of oil and cause excesive wear.

Propper NOS tuning is a pain in the a** with out a wide band 02 and some dyno time. Even with just my EGT and simple AF and my dynobuttometer its trickey. Its one of those things that it will work just fine for a while if its a little lean. But eventually it will break or cause excessive wear on your piston rings and valve seats that you will loose an excessive amount of compression, thats not good! Tune it right and you have nothing more to worry about than the guy with the SC (unless its a V2, ha). Bla bla bla, ok ill shut up now. hehe

Nismo87SE

Even though its expensive it takes care of all these problems. Almost all of the fastest nissans (sentra's, 300zx's, maximas,) use this ECU. But how are you gonna adjust the ignition timing? Everyone says the ignition timing on the VQ30DE isn't adjustable. I believe the rule of thumb is to retard timing by 1-2 degrees. Also the Apexi ITC won't work on the VQ30DE. Good luck!

MardiGrasMax

iTrader: (14)

I have called JWT to discuss using the 95-96 ECU in my 98 and they said "oh whats your number well call you back". Guess what no call back on more than one ocasion! JWT can kiss my ***.

Synki

This is what i heard too about the VQ engines not being able to have timing adjusted. HOw much power can a NA max expect outta this gadget? I'm thinking about buying one soon. I need more power!