post under tech>engine and from there either reviews or intake/exhaust - seems like both forums have enough mrev threads.

so is mrev the only thing you have? still using the stock paper filter and g tube?

 

Yes, completely stock other than the MREV+. My car still has the paper filter and G-tube.

I must admit that the stock intake is a little bizarre. What’s the deal with the catch bottle?

 

Now that's odd. I dyno'd on a Mustang dyno and hit about 212 whp and 185 ft-lbs, which is similar to other numbers G35s got on the same dyno. This matched basically exactly with road dyno calculations I made from my car accelerating on the street. I'd question those numbers you got, or find out if there are any weird additional factors being added in.

 

My thought exactly...but I wasnt going to say . The dyno operator added in some correction . Since the dyno operator dynoed at 220whp earlier and now dynoes 47whp more

 

Question what?

A dyno is like a scale. It could have said I have 500 HP or 100 HP. As long as it’s consistent I’ll know if the MREV actually works. Remember, the other G (owned by a Curry’s employee) recently dyno’d within 5 HP of mine.

I’ll ask the guy at Curry’s what he attributes the 220/266 difference to when I go back in a couple of days.

But don’t think I will stop telling people that my G puts down 261 at the wheels.

 

If you go back and make 275whp you know you have gained hp . No biggy there . We just wonder why one car on the same dyno gain 47whp with nothing added... thats all

 

Log vehicle speed versus time on a street run and back-calculate power if you want to know what your car actually puts out at the wheels. Unfortunately you need special tools (like Cipher) to do so.

 

Never post a G that dynos over 240.
It is very dangerous on this forum.
Did that twice and same result.

 

Post delta numbers, not absolute numbers.

 

Thank you!

 

Any time.

 

I'm going to be taking my car to a mustange dyno next week and I'm curious on what I'll get. Last time, I took the car over the summer (93 degrees BTW)to a dynojet and got 231 WHP with just a Stillen exhaust and AEM intake on my '04 5AT.

 

WHen you go . Have him put the Wt. of the car at 3450lb's plus your Wt. or operators Wt. , who ever sits in the car . And ask what ramp up time he uses...I believe it should be 6 seconds

 

^I assume that'll give more accurate numbers?

 

My, you do like to post in absolutes, don't you?

Please, elucidate, will you? What exactly do you mean by "log vehicle speed versus time"? Should a run be performed in a single gear? If so, which gear? If not, then how does one account for the elapsed time in shifting gears? Is there a way to log when the car is fully in gear, or not?

Also, just how accurate is this means of measurement? Do you have a weather station recording wind direction and speed? How would a tail wind or head wind affect the measurement? How would tire pressure affect measurement? Or what about wheel size and weight, in combination with tire size and weight? If one increases the diameter and weight of his drive wheels, by say 50%, would this not lengthen the time required to cover the same distance? But technically, the amount of power the car is putting "to the wheels" would be unchanged, correct?

My point here is that even your *suggestion* is merely an approximation, just like using any type of dyno. Like you said, your way of doing things requires "special tools (like Cipher)". Hitting a dyno for 50 some-odd bucks, for an approximation, doesn't seem too bad to me.