|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: gdonovan]
#803745
09/18/10 11:20 AM
09/18/10 11:20 AM
|
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
|
I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
|
The 5.9 cam specs you have listed are wrong, that is the old 2bbl cam, all the magnum motors have more lift than that, varries just a hair depending on the year.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: HotRodDave]
#803746
09/18/10 11:51 AM
09/18/10 11:51 AM
|
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
OP
I Live Here
|
OP
I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
|
Quote:
The 5.9 cam specs you have listed are wrong, that is the old 2bbl cam, all the magnum motors have more lift than that, varries just a hair depending on the year.
The numbers are right from the Magnum modification manual and I have confirmed it with a micrometer.
Easy enough to do, the difference between base circle and peak lobe x rocker ratio.
I have confirmed this on 2 5.9 (.410 lift) and 2 5.2 (.430-.432) camshafts.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: HotRodDave]
#803747
09/18/10 07:38 PM
09/18/10 07:38 PM
|
Joined: Jan 2003
Posts: 2,511
Tampa , Fl
MoparJoe
super gas
|
super gas
Joined: Jan 2003
Posts: 2,511
Tampa , Fl
|
Quote:
The 5.9 cam specs you have listed are wrong, that is the old 2bbl cam, all the magnum motors have more lift than that, varries just a hair depending on the year.
Going off the lobe I got .260" in a '99 and '01 360 - comes out to .417" using the advertised rocker ratio of 1.6, they will spec out higher at the valve though since some stamped rockers are closer to 1.7, my '99 318 had nearly .280" at the lobe and was a pretty good running truck.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: MoparJoe]
#803748
09/18/10 08:18 PM
09/18/10 08:18 PM
|
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
|
super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
|
The factory 360 magnum cam (at least in the 94-95 models were right around 410 lift, the dur. is horrible even at 50*, i had mine re-ground through bullet cams, Tim was limited to what could be done because of its "lack' of any real lobe, We settled on this useing factory rockers (.477-.477, .218-.218 @50, went from a 114 too a 112), this cam even though it has "great" torque lacks in anything above 5200, its about finished, but it runs very very well.
I'm running a stock 904 with a RMVB & an 11" 2800 PTC.
I know you said the headers are not an option right now, put them on your list soon, i'm running the cheapo summit 105.95 headers, i will say thay are NOT cheap by any means, the construction is very good along with the fitment, much better then some headman/hookers i've had.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: joedust451]
#803749
09/18/10 08:53 PM
09/18/10 08:53 PM
|
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
OP
I Live Here
|
OP
I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
|
Quote:
I know you said the headers are not an option right now, put them on your list soon, i'm running the cheapo summit 105.95 headers, i will say thay are NOT cheap by any means, the construction is very good along with the fitment, much better then some headman/hookers i've had.
Its not a question of money but of looks (I actually have a new set of Dougs ceramic coated sitting on the shelf)
I want the car to look stock under the hood, so manifolds are a must. The car was suppose to come out with 340/360 manifolds but I was in a hurry to get some racing in before the end of the season and didn't want to tie up the car any longer.
The valve covers and small exhaust manifolds will be changed over this winter.
Frankly if the car dips into the 12's it will have exceeded what I wanted to do.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: gdonovan]
#803751
09/25/10 07:31 PM
09/25/10 07:31 PM
|
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
|
super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
|
Quote:
Quote:
Not sure but with that carb and manifold and exhaust 14.0-14.3 around 98-99 mph Need better exhaust and the AFB got to go With a little tuning you could well see 12s
You were closest- Car ran a best of 14.2 at 94 mph.
Car barks the 10 x 26 slicks hard on launch, I had to lower the tire pressure to 9 psi to get some hook!
My power wheel states 249 whp based on ET, 235 based on mph (car with me in it is 3610 on the scales.)
Not shabby, my buddy states a stock Dakota R/T 2WD will rap out 195 to the wheels, so I'm 50 hp over a stock 5.9 motor.
The cam makes to much low end power and the exhaust manifolds are just killing any top end, as I expected.
Tried jacking the timing about, it liked what I had it set at from the gitgo, 36 degrees total. Tried 34 and 38 and the mph fell off both times.
Car really didn't care if it had the stock air cleaner or an open unit. If I had more time I'd run the 750 but there was no more passes to be made before heading for home.
http://www.youtube.com/watch?v=XMRI_DhiCqw
That car needs a serious diet, my 75 BB duster weighed less then 3000 lbs., it had all steel & glass, also had iron heads, those bumbers/brases are a solid 165 lbs. that can be taken off.
Don't know what your Alt. is there but that 360 magnum is sleeping IMO & can do "much" better. Mine likes 30-32* total.
I'm curious, what were you shifting at? Mine is somehow limited to 5100, i can't amagin anything being the limiting factor other then the cam in mine, its already in the mid. 12s.
Last edited by joedust451; 09/25/10 07:36 PM.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: joedust451]
#803752
09/25/10 08:03 PM
09/25/10 08:03 PM
|
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
OP
I Live Here
|
OP
I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
|
Quote:
That car needs a serious diet, my 75 BB duster weighed less then 3000 lbs., it had all steel & glass, also had iron heads, those bumbers/brases are a solid 165 lbs. that can be taken off.
Not going to happen, this is a full street car with my 221 pound butt behind the wheel.
Quote:
Don't know what your Alt. is there but that 360 magnum is sleeping IMO & can do "much" better.
608 foot above sea level.
Yes, as noted the cam and 318 manifolds are killing the combo. Still, 50 hp over stock isn't nothing to shake a stick at either.
Shifts were at 4500, I let it shift by itself and focused on the tuning aspects. Stock HP peak is 4000 rpm.
Maybe next month I'll have the larger exhaust manifolds installed and take another crack at it with the cooler weather.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: gdonovan]
#803753
09/25/10 09:00 PM
09/25/10 09:00 PM
|
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
joedust451
super gas
|
super gas
Joined: Feb 2005
Posts: 5,221
Branson, Mo.
|
Quote:
Quote:
That car needs a serious diet, my 75 BB duster weighed less then 3000 lbs., it had all steel & glass, also had iron heads, those bumbers/brases are a solid 165 lbs. that can be taken off.
Not going to happen, this is a full street car with my 221 pound butt behind the wheel.
Quote:
Don't know what your Alt. is there but that 360 magnum is sleeping IMO & can do "much" better.
608 foot above sea level.
Yes, as noted the cam and 318 manifolds are killing the combo. Still, 50 hp over stock isn't nothing to shake a stick at either.
Shifts were at 4500, I let it shift by itself and focused on the tuning aspects. Stock HP peak is 4000 rpm.
Maybe next month I'll have the larger exhaust manifolds installed and take another crack at it with the cooler weather.
What were the 60fts., that MPH is worth mid. 13s.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: joedust451]
#803754
09/25/10 09:06 PM
09/25/10 09:06 PM
|
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
OP
I Live Here
|
OP
I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
|
Quote:
What were the 60fts., that MPH is worth mid. 13s.
1.96, 1.96, 1.99 and 2.0
MPH in the 8th was 74.5-75.6 mph depending on where the timing was at.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: gdonovan]
#803755
09/25/10 11:46 PM
09/25/10 11:46 PM
|
Joined: Jan 2003
Posts: 2,511
Tampa , Fl
MoparJoe
super gas
|
super gas
Joined: Jan 2003
Posts: 2,511
Tampa , Fl
|
Quote:
Quote:
That car needs a serious diet, my 75 BB duster weighed less then 3000 lbs., it had all steel & glass, also had iron heads, those bumbers/brases are a solid 165 lbs. that can be taken off.
Not going to happen, this is a full street car with my 221 pound butt behind the wheel.
Quote:
Don't know what your Alt. is there but that 360 magnum is sleeping IMO & can do "much" better.
608 foot above sea level.
Yes, as noted the cam and 318 manifolds are killing the combo. Still, 50 hp over stock isn't nothing to shake a stick at either.
Shifts were at 4500, I let it shift by itself and focused on the tuning aspects. Stock HP peak is 4000 rpm.
Maybe next month I'll have the larger exhaust manifolds installed and take another crack at it with the cooler weather.
Try shifting at 5000-5200, that's where my trucks ran best with stock cams- it was worth 2/10 and 2 mph on a stock truck, I had a custom 206* in one that liked 5800-5900.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: MoparJoe]
#803756
09/26/10 09:09 AM
09/26/10 09:09 AM
|
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
OP
I Live Here
|
OP
I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
|
Quote:
Try shifting at 5000-5200, that's where my trucks ran best with stock cams- it was worth 2/10 and 2 mph on a stock truck, I had a custom 206* in one that liked 5800-5900.
I have been giving some thought- I might slap the bigger manifolds on and just run some short dumps. This would allow me to seperate the two issues (cam and manifolds) and figure out which is the worst offender.
I doubt the rest of the exhaust system is the issue (2.5" mandrel bent with an H-pipe) so if the car suddenly picks up a bunch of power I know which direction to go.
This would be quick and easy to do which is good as I'm suppose to be winterizing the house soon not tinkering further with cars! 
Looking at the vids in slow-mo shows the car hitting the slicks but not spinning after the first run or two, it simply isn't making enough power to shorttime better.
|
|
|
Re: What will it run? A-body with 5.9 magnum & slicks
[Re: gch]
#803758
09/26/10 12:16 PM
09/26/10 12:16 PM
|
Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
OP
I Live Here
|
OP
I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
|
Quote:
Even an off the shelf converter will pick up .2-.3 with slicks.Efficient or not.Most folks will trade mph for e.t.
I'm installing an overdrive trans this winter, spending cash on a 904 converter I'm going to use for maybe one event isn't cost effective.
|
|
|
|
|
