Thread: Power is just not there?!?

Do you see a problem with that? Or are you just stating something to get a post in.....?

A friend of mine VVL'd his car with N60 maf and ebay header and it was shit slow and unresponsive. Switched to DE maf and it normal and pulls hard.

Who the heck care what the timing is at idle. You're not making peak power at idle.

The total timing is what's important.

Having the ECU tuned for that kind of MAF there's no reason to run better or worse, I'd say that a N60 MAF is an upgrade by the 3" housing.

If the ECU is not tuned for a diferent kind of MAF or even the same MAF but other housing I bet the car runs like sh!t

I just don't feel my VVL as fast as I thought and everything's seem to be fine, maybe I just can't drive...

The base timing is the starting point, it should be set according to your timming map and if not this will affect both mid and high end, if base is so high you could get some knocks causing your ECU to pull the timing up top.

Ill try and set the timing to 15 degrees and see what happens. Ill get back to those that are following and helping me soon.

Now a question for those that know for a fact and are not guessing, If i do not have an O2 sensor plugged into the rear O2 harness is it going to be seen by the ECU as an open or fault? -- leading to cause possible poor performance--

Also there is a slight hesitation at part throttle when shifting and then rolling on the throttle directly after the shift. -- Just trying to give as much info to those trying to help.

dude everytime you make a post you make your self look dumber an dumber.. if you dont know what the hell your talking a bout dont post.



@ the op take the car an get it tuned, i dont care if your not tryin to set any records or what ever, thats not the reason for tuning..

yeah.......um kind of important that your maf/injectors are matched to your "tune"

Agreed. So very, very, very, strongly agree.

People need to read on their swaps. I didnt go into mine blind, i read up on it, and asked josh plenty of questions.

First, the OP has a tuned ecu and he never showed his timing map. So how can anybody( without seeing the map) jump to the conclusion the timing is too high?

When a car gets tuned on a dyno, it usually run at full throttle from 3,000rpm to what ever rpm the peak power occurs. The timing and afr is adjusted for the those rpm range. With a tuneable ecu, you can change the idle timing without affecting the other part of the rpm and vice versa.

As an example, let say one engine has very radical cams and has problem idling. I can help it out by adding timing to idle rpm and leave the rest of the timing map alone. I’ve added 20 degrees to some engines to help them idle. But base on your reasoning, the 20 degree at idle is too high for peak power, which is flawed. In this case, one has nothing to do with the other.
When I tune a car for peak power, I want know the total or peak timing for peak power. I could care less what timing you have at idle.

The more relevant question to the OP is: what is the peak timing?