Snake Skin Green '69 R/T build - UPDATE: 12-4-13 'CHASSIS DYNO RESULTS'

[FlatbackFanatic]

Your Charger looks fantastic!!!!! Great job.

[Charger-Bodie]

I am a die hard when it comes to stock apearing Chargers,BUT Your Charger is the exception.What a BADA$$ unit. Love it!!!!!!! 

[War wagon]

Any plans on running that beautiful beast down the 1320?? Very interested in the numbers if you do.

Now that you had a chance to put some miles on it, curious how you like the seats? They really suit the car and look very comfy from pics. I'm 6'6" and my OE seats don't have the factory headrests, I find them Very uncomfortable on long drives.

Your car is stunning and deserves all the accolades
Well done sir.... Well done

[yeahitsgotahemi!]

Any plans on running that beautiful beast down the 1320?? Very interested in the numbers if you do.

Now that you had a chance to put some miles on it, curious how you like the seats? They really suit the car and look very comfy from pics. I'm 6'6" and my OE seats don't have the factory headrests, I find them Very uncomfortable on long drives.

Your car is stunning and deserves all the accolades
Well done sir.... Well done

As soon as they reopen the local track here (used to be Firebird, now its under new management and called Wild Horse Pass), I definitely want to give it a go. Will post up results next year most likely.

I like the seats a lot, both looks and comfort. For a big guy like yourself, I would go to an off road store and try out a display model first before throwing down the cash. The side bolsters in the regular seat might be a bit tight for larger folks. They do have a wide version of the seat I bought I believe.

[War wagon]

Any plans on running that beautiful beast down the 1320?? Very interested in the numbers if you do.

Now that you had a chance to put some miles on it, curious how you like the seats? They really suit the car and look very comfy from pics. I'm 6'6" and my OE seats don't have the factory headrests, I find them Very uncomfortable on long drives.

Your car is stunning and deserves all the accolades
Well done sir.... Well done

As soon as they reopen the local track here (used to be Firebird, now its under new management and called Wild Horse Pass), I definitely want to give it a go. Will post up results next year most likely.

I like the seats a lot, both looks and comfort. For a big guy like yourself, I would go to an off road store and try out a display model first before throwing down the cash. The side bolsters in the regular seat might be a bit tight for larger folks. They do have a wide version of the seat I bought I believe.

First off thanks for the heads up on the side bolsters. I was hoping they might offer that seat in different sizes.
Can't wait too see the results when you hit the track. Hopefully you'll be bringing some real slicks, with Dyno numbers like those your tires won't stand a chance.
Curious also on your rear gear choice and stall speed in the converter...
No matter what it ends up running I bet every guy in attendance that day will wish he was going home in your car.
That's one SWEET ride you've built 

[firefighter3931]

Yep, a few jet changes and some timing = 681 RWftlbs and 441 RWhp. Not to shabby. I figured it was going to make 100 less torque and 100 more hp, but hey?

Seems like it wants more cam? I'll enjoy it as is for now. Maybe help pull some buildings down or move a train...

If I assume 25% drivetrain loss, thats roughly 900 ftlbs / 590 hp at the crank.

MS

Looking at the dyno sheet you can see it going richer as the rpms are climbing. That will hurt power a lot. You ideally want the A/F ratio in the high 12's to low 13's at WOT. At 5100 you are in the high 11's so it's getting too much fuel.    Correct that and the power will move up 

It does appear that it's peaking early which can be a too small camshaft issue....but with those heads at MW port i would think it should keep making power to 6K with XS290S 

There's certainly more hp to unlock with tuning....i would think based on experience that combo should be in the 600hp range at the crank.

The tq numbers are definately off....now way it's making that much torque at such a low rpm. My 572 didn't make that much at the crank at those engine speeds. 

Generally, i don't place much stock in chassis dyno results....i use them for tuning the A/F under load and shoot for best results. Once you get it to the track the MPH number will tell us how much power it's making. 

Nice job, the car looks fantastic ! 



Ron

[1974dodgecharger]

Fellow Arizonian tearing up da streets....

[yeahitsgotahemi!]

Yep, a few jet changes and some timing = 681 RWftlbs and 441 RWhp. Not to shabby. I figured it was going to make 100 less torque and 100 more hp, but hey?

Seems like it wants more cam? I'll enjoy it as is for now. Maybe help pull some buildings down or move a train...

If I assume 25% drivetrain loss, thats roughly 900 ftlbs / 590 hp at the crank.

MS

Looking at the dyno sheet you can see it going richer as the rpms are climbing. That will hurt power a lot. You ideally want the A/F ratio in the high 12's to low 13's at WOT. At 5100 you are in the high 11's so it's getting too much fuel.    Correct that and the power will move up  

It does appear that it's peaking early which can be a too small camshaft issue....but with those heads at MW port i would think it should keep making power to 6K with XS290S  

There's certainly more hp to unlock with tuning....i would think based on experience that combo should be in the 600hp range at the crank.

The tq numbers are definately off....now way it's making that much torque at such a low rpm. My 572 didn't make that much at the crank at those engine speeds.  

Generally, i don't place much stock in chassis dyno results....i use them for tuning the A/F under load and shoot for best results. Once you get it to the track the MPH number will tell us how much power it's making.  

Nice job, the car looks fantastic !  



Ron

Thanks for the feedback Ron.

I'll have another look at that A/F. I was a bit skeptical on the torque numbers as well. I might have to buy a wide-band O2 sensor and see if I can't do some tuning of my own.

Do you think I should try stepping down the jet size again? Any tuning suggestions appreciated.

[ChargerD100]

  I remember randomly finding this car on a google search was wondering how it ended up it looks great! I need to find a garage to make some progress on my own