hey peeps,

wondering if anyone can make sense of a dyno result i got on Sunday.

a year and a half ago, i got 98.7hp atw (in 4th) with nothing done to my car except 2.25" exhaust and a pod filter in the engine bay.

on sunday i got 91.1hp atw (in 3rd) with extractors, fuel pressure reg, cold air intake.

now 91.1 i could live with since all dyno's are different and it was in 3rd instead of 4th and all that. but, (my car is a 2002 2.0L CG btw) i got beat by another CG with no mods cept a 2.25 exhaust which got 92.1hp atw

the other CG was running 95octane fuel and i had 98octane. I have exhaust, fpr, extractors & CAI

what's with that?
I also have 17" rims that i didnt have last dyno day, and he had 15" would that make a difference on a dyno?

see a vid if your interested

 

large rims could make a difference, especially if they are chromed out and weigh like 30 lbs each.

but the difference in gear selection probably plays the biggest difference I would guess.

 

Why the hell were you running 98 octane? Are you playing with timing and fuel maps at all?

And how did you get 98 octane... did you buy 98, or did you buy 94 octane and added 4 cans of Nos in a thincan?

 

You should be running 87 Octaine unless you car has been tuned to otherwise need higher octane.

 

you have to see what the correction factor is for the dyno if any. for example when i tuned my wrx we had an sae correction of 1.2 for our altitude and other uncontrollable things that could effect the number.

 

Haha, silly US doesn't know what is 98 octane. J/k
In Europe and I guess Australia too, they have 98 octane as their premium standard.

 

Jeez, doesn't anyone (but Greg) read?

He's in Australia! How do you think he's running a CG?

As for the results, why would you run the 2nd dyno in 3rd gear? That should have been a dead giveaway that you'd get different results. The gearing is completely different.

As for how the other guy beat you - maybe he's a better driver than you?

 

What difference does it make? He's in Australia.... so what? Does it mean we ALL know they have 98 octane available at the pump? Geez... you gotta tone it down a little

 

neo-geisha, wheel size should affect your WHPs. You shouldn't really worry about 3rd gear pull. It's not that big of a difference, check the Engine Tech section on the top of the page there are stickies and one of them have all the dynos. It will explain everything about 3rd and 4th gear pull = no big difference for NA Lancers.
I think maybe your new Fuel Pressure Regulator is setting your Air Fuel ratio too high and make you run rich = loose horespower.

 

To be honest, yes. I really thought you guys might understand that not every country does things like does. Maybe I'm just nuts.

Just don't go asking him how many MPH he does.

 

I knew other places had better quality standards, but I never thaught 98 octane was available anywhere at the pump... that really stumps me.

 

Better quality? I don't know about that. When I used to live in Poland one gas station did their own mixture of 50%50% water and fuel. I tried to explain that water/alcohol injection does not work like that but they didn't listen .
Because there is 98 octane available the gas is so expensive there.

 

Quality isn't necessarily the issue.

94 octane isn't BETTER gas than 87 - it's just a higher octane rating, which lowers the chance of knock.

For example, I use 94 octane in my '69 Camaro because it'll keep the engine safer, not because it's better gas. (PS - and I have the timing set so aggressive, the ****er still knocks at WOT. )

 

thanks for all the replys guys.

our standard unleaded fuel in australia is 91% octane
and then we have 95% and 98% octane fuels as premium unleaded choices

blacksheepdj - we don't take the cars on the dyno ourselves.. so its no question about who is the better driver. tha same guy took about 25 lancers on the dyno during the day.

i didnt realise at first that the dyno was run in 3rd, but i can get over the fact that the numbers were low compared to my last dyno run because of that.

but the two lancers would still be compareable even with low numbers. and the stocker got higher numbers.

my fpr is set to 38psi, which i'm pretty sure is same as the stock fpr. but its the Malpassi rising rate unit.

I guess i just have to start looking at my fuel management options. emanage, safcII etc.

by januuary, i will have a 60mm throttle body and 4g93 intake manifold. then it will be time to get a piggyback.

then we shall see who gets bigger numbers on the dyno.

thanks guys!

 

Let's not forget the biggest thing - different cars will be drastically different.

rates the Lancer at 120 chp, but I'm sure I could run 10 stock Lancers and get different dyno numbers and 400 km times. Every car is different.