Finally! Numbers from Dyno Tune are IN!

[WhiteDevil]

Alright well i had a great time with the guys at San Diegos local mustang shop DPR. Spent about 2.5 hours playing with it on the dyno. My old numers were with 1,000 miles on the motor and just raw guesses in the TwEECer.
OLD NUMBERS: 327rwhp and 356rwtq

My first baseline pull was with the same tune as before but with the addition of 1 3/4 Long tubes and a new DR. Gas X.
Baseline: 336rwhp 348rwtq
I was pretty happy with that gain just from the long tubes but i did lose a little tq probably to the bigger primaries

That baseline was also with the Anderson Power Pipe on and the A/F was right on. Next i swapped that out for C&L inlet tube i kept my pro-m MAF.
Numbers:330rwhp and 355rwtq
So i lost some hp but gained the same tq. BUT mainly the C&L pipe made me much richer. So i took some fuel out of it and got
Numbers: 337rwhp and 356rwtq

Now that i decided to keep the C&L pipe on i started to mess with timing i had it at 33 degrees in the base line and pushed it up to 34 degrees. I lost 6rwhp and 9rwtq. So next i went down to 32 degrees and my A/f went way rich but i only lose 4rwhp from the high of 337rwhp. And TQ went up to 359rwtq! So now i just had to lean it back out and would be in the money!

I got the A/F back into the 12.8-13.0 range and got these numbers!
Numbers: 342rwhp and 368rwtq

I liked that and called it quits for tuning but we let it cool for about 20 mins and did another pull. I was rewarded with
Numbers: 347.18rwhp and 374.73rwtq!

 

[badstang123]

Good work Those seem like pretty good numbers to me. And it's cool to see what you did and how it affected numbers.
- Justin

 

[94-302-vert]

That is a nice torque number... WOW...

 

[slvrbullit302]

Congrats man, nice numbers, I just wish my 10.5:1 331 would have made better power than it did (317rwhp 360 rwtq untuned). Maybe it will when I get it back together.

 

[Killercanary]

Congrats on the new numbers! At what RPM did the peaks occur at now and before the long tubes?

 

[WhiteDevil]

Congrats on the new numbers! At what RPM did the peaks occur at now and before the long tubes?

Good question i have the old numbers at home i can check later on this dyno run i peaked at 5,500rpm. I went straight from the shop to work so i dont have it on me. Also when i get home ill put up the dyno sheet, and some pics, and i have a video of the last run.

 

[rj95svt]

I am surprised the C&L inlet pipe gained over the AFM power pipe. I know the main difference was in torque but I thought it would be down on upper rpm power but it actually done better.I am surprised! Nice numbers man!

 

[Pops Fun]

Congrats... some good numbers

 

[gcomfx.com]

Sweet... there we go. One Cubic Inch for One Horsepower.

 

[urban96]

Sweet... there we go. One Cubic Inch for One Rear Wheel Horsepower.

fixt

 

[69clark]

Great numbers. Congrats

 

[BlackVert]

now that's more like it. well done. post that graph if you can ...

 

[final5-0]

John

I got so much to say about your experience
I just don't know where to start

First of all ... the session was controlled by ... Y O U

:Teh-Win: Great Job :Teh-Win:

Your O N L Y requirement of the shop was the use of it's equipment

John ... Over the years I've tried to help so many self tuners to see .......
The way you did it ..... Thats the best way to do it

IMHO ...The dyno is for fine tuning & confirming subtle changes :Word:

Before going to the dyno for fine tuning ... do two things

1) Get familiar with your equipment
2) Be capable enough with your tuning abilities to be efficient
cause
Roller time is $$$ ... Don't Ya Know

You can so easily do 1 & 2 on the street
thus
Your tune can be 95% in place before going on the rollers
thus
Your session will yield the kind of experience ... John has obtained

Gotta go for now ... might have more to say later

again John ... A tuning guru ... are you

Grady

 

[blksn955.o]

Nice numbers

great read too, with good details of changes made and the outcome.

I would not mind seeing something like this on the wiki tuning page...real world tuning and examples of what to do with said output results. Kinda like a quick trouble shooting guide....

Nice tech article

 

[WhiteDevil]

Pics and Vids

 

[blksn955.o]

DAMN nice trq.

 

[final5-0]

A bigger pic of Before & After

Grady

 

[Black95GTS]

Thats has got to be fun on the street. Love seeing this self tuned tweecer cars put down great numbers!

Adam

 

[final5-0]

I have spent most of my time researching 302-306 cubic inch combos.
When it comes to 347's ... I don't have much data so they always are
fun to look at

I'd not have thought you could reach the 1rwhp per 1ci benchmark
with the smaller size heads you are using.

With nothing more than small changes (fine tuning) in spark & fuel
you picked up 5rwhp & 12rwtq

Lets talk about the cool down situation

The cool down gave you an additional 5rwhp & 7rwtq which is nice
but
Its benefit is not always gonna be present.

Most take advantage of that for a nice little bump in the final values
and ... As I see it ......
Thats not that much of an unreal expectation for a street car

Some ... on the other hand
Do things like
short belt
no belt
enhanced gas for enhanced spark abilities
non corrected or standard calibration values
and
other little tricks that don't really show ........
every day reality driving conditions

A gain of 20rwhp/20rwtq is nothing to be unhappy about
and I know you gotta be pleased John

Makes me wonder what you could do with heads that were
more suitable for the extra 50 cubes

Grady

 

[Grn92LX]

Nice improvements. You're using the 3"x2.5" dr gas X right? My 347 NEEDS that 3" pipe! How did it end up fitting and going together?

I wonder what my combo will make since I spin it 1,000 rpm's higher than you and have much more aggressive parts/more compression. I'm thinking at or near 400rwhp once I get the right sized 3" mid pipe i need.