Your Dyno numbers

[Beauwulf]

Originally Posted by scrming

got to remember on a dyno you really aren't coming off idle... rollers are rolling, car is shifting... dyno operator hits the start button and then gets on the gas... So at that point the car is probably in the leaner cruise mode...

So to me that starting AF looks pretty typical to me...

That's why I asked if there were any other runs with AFR on them. I wanted to see if there it was the dyno operator rolling on the gas or if the EPA mandated that lean of a setting below 2500.

[scrming]

Originally Posted by Beauwulf

That's why I asked if there were any other runs with AFR on them. I wanted to see if there it was the dyno operator rolling on the gas or if the EPA mandated that lean of a setting below 2500.

Well.. i haven't had the need to have a bung installed yet... so no AFR for me... yet... LOL

[Beauwulf]

Originally Posted by scrming

Well.. i haven't had the need to have a bung installed yet... so no AFR for me... yet... LOL

Well, I won't coment on your need for a bung.... LOL! But (pun intended), you can get a fairly accurate AFR from a tailpipe probe...... That just don't sound right! LOL!

[scrming]

Originally Posted by Beauwulf

Well, I won't coment on your need for a bung.... LOL! But (pun intended), you can get a fairly accurate AFR from a tailpipe probe...... That just don't sound right! LOL!

LOL!

Shop doesn't use a sniffer... (is that better? LOL)

[Beauwulf]

Originally Posted by scrming

LOL!

Shop doesn't use a sniffer... (is that better? LOL)

A little I guess..... Anyway, I'm gonna try to schedule some dyno time next weekend and I'll try to get them to do a simulated 1/4 to see what it does on the AFR....

[dobie]

what do you guys pay (ballpark) figure for a dyno run or session, etc. never looked into it before this car but my interest is peaked now.

[mrray13]

I pay $55 for 3-4 pulls, depending upon how much time he has, what we are doing to the car.

[PieNsky]

Just got back and will scan the results. Mustang Dyno and an automatic.
Three pulls, 265 hp 243 tq, 268 hp 242 tq,268hp 244 tq
Stainless Works 1 5/8" headers, high flow cats and exhaust.

[KMPrenger]

Originally Posted by PieNsky

Just got back and will scan the results. Mustang Dyno and an automatic.
Three pulls, 265 hp 243 tq, 268 hp 242 tq,268hp 244 tq
Stainless Works 1 5/8" headers, high flow cats and exhaust.

So looks like you gained somewhere around 15HP, and 28 TQ on top with these mods.

I'd like to see a full dyno chart with your original run vs this one and view your gains across the entire RPM band.....post it sometime if you get the chance!

Thanks!

[mrray13]

Lt headers or shorties?

Very nice numbers!!

[PieNsky]

This is what I have. Any questions would have to be answered by Auto Motion. Phone number is on the sheets.

[PieNsky]

Originally Posted by KMPrenger

So looks like you gained somewhere around 15HP, and 28 TQ on top with these mods.

I'd like to see a full dyno chart with your original run vs this one and view your gains across the entire RPM band.....post it sometime if you get the chance!

Thanks!

Stainless Works headers are made from 304 stainless, the good stuff. The results are what they are and consistent. The base dyno numbers were at a different dyno however my end result were a 265,268,268 HP and these are not manufactures numbers. Compare this to the base lines of what the other members are getting. I have read, but can not confirm that the Mustang dyno doesn't dyno as high as a Dyno Jet. If that is true, these numbers might be higher.

[mrray13]

I've heard the opposite, lol. Mustang tends to give higher numbers, DynoJet lower. Who knows? Unless a shop has them side by side and one can dupilcate runs almost exactly, it would be damn near impossible to say one reads higher then the other.

[rolnslo]

Originally Posted by PieNsky

Stainless Works headers are made from 304 stainless, the good stuff. The results are what they are and consistent. The base dyno numbers were at a different dyno however my end result were a 265,268,268 HP and these are not manufactures numbers. Compare this to the base lines of what the other members are getting. I have read, but can not confirm that the Mustang dyno doesn't dyno as high as a Dyno Jet. If that is true, these numbers might be higher.

Maybe I missed it but what correction factor for conditions was applied to the results?

I know my car dyno'd at 249.2hp/231.85tq - uncorrected.

With STD correction, it drops to 247.55hp/230.29tq.

With SAE correction, it really drops off down to 240.56hp/223.79tq.

Even if you apply some sort of correction factor, your v6 is still whooping up on my v6...

Did your SW header setup ever get any quieter or lower pitched with time? I seem to remember the videos that were originally posted of it having a really high-pitched exhaust sound rather than a lower more rumbling sound.