509 cam 383 what Stall?

[darrin75]

452 heads 509 cam 383 750 holly Dp.  It seems that I got great power at high rpms, but I need more torque?  What do I need higher stall or small cam?  Thanks, also is it a trade off,  I mean Will I lose power or horses on top end, if i go with more torque? Also the guy that build the tranny, put a stock converter, I think thats were I am losing it.  Just trying to learn as much as I can on these things, so don't beat me down to bad.

[8WHEELER]

If you are only racing the car, yes you can put a 2800 of 3000 stall in for that cam. But if
its a street car at all, I would pull out the 509 and sell it ''that's what I did'' I had a 2800
stall converter in mine, and the came was just a pile of junk. They are not supposed to be on
a automatic car in the first place, it says that right in the info on the cam.

The cam had great pull between 3500 and 6k, but any lower than that and it is worth less.

I still run the old fashioned 484/284 mopar cam, it runs OK, but there are much better cams out
there nowadays for sure. I will be running a Engle cam on the next two engines I build for good
torque, and fantastic midrange for great street use because I don't race anymore.

Dan

[jg68]

Get at least a 3400 flash stall, 36-3800 would be best.

[Nacho-RT74]

I still run the old fashioned 484/284 mopar cam

DCC-4120235 ? with 2800 stall ? or wich stall do you have right now ?

[8WHEELER]

I still run the old fashioned 484/284 mopar cam

DCC-4120235 ? with 2800 stall ? or wich stall do you have right now ?

I bought it in 1980, I got information from a big time racer at my local Dodge dealer. He said why
not save some money and buy a 340 converter, so I bought a new small block flex plate, put the
340 converter in, he said it make my stall right about 2800 on a 440. I have had great luck with
it works perfect, still in the car today.

The stock converter with the 484/284 cam was beating me to death at idle, now it is real smooth

Dan

[Nacho-RT74]

My question was because I have stock converter and will install a  DCC-4452993 cam ( kinda similar that your one ). Ron told me about 3500 stall but I think that's to much. I was thinking kind 2400-2800 rate modifying my stock one

[firefighter3931]

452 heads 509 cam 383 750 holly Dp.  It seems that I got great power at high rpms, but I need more torque?  What do I need higher stall or small cam?  Thanks, also is it a trade off,  I mean Will I lose power or horses on top end, if i go with more torque? Also the guy that build the tranny, put a stock converter, I think thats were I am losing it.  Just trying to learn as much as I can on these things, so don't beat me down to bad.

Personally, i would change the cam to something more streetable. 

How much gear are you running in this car ? 


Ron

[firefighter3931]

My question was because I have stock converter and will install a  DCC-4452993 cam ( kinda similar that your one ). Ron told me about 3500 stall but I think that's to much. I was thinking kind 2400-2800 rate modifying my stock one

Natcho, Dan is running a similar cam in a healthy 440....he has more compression and cubic inches to absorb some of the cam's duration. 

You want to put a large cam in a low compression build.....comparing these 2 engines is like comparing apples and oranges. They will not behave the same, at all. The only way to cover up an overcammed engine is with lots of stall and gearing....otherwise you will have a slug. Trust me, i've been there and learned my lesson. 


Ron

[Nacho-RT74]

well that's the reason I'm asking, to compare

My question was because I have stock converter and will install a  DCC-4452993 cam ( kinda similar that your one ). Ron told me about 3500 stall but I think that's to much. I was thinking kind 2400-2800 rate modifying my stock one

Natcho, Dan is running a similar cam in a healthy 440....he has more compression and cubic inches to absorb some of the cam's duration. 

You want to put a large cam in a low compression build.....comparing these 2 engines is like comparing apples and oranges. They will not behave the same, at all. The only way to cover up an overcammed engine is with lots of stall and gearing....otherwise you will have a slug. Trust me, i've been there and learned my lesson. 


Ron

BTW I'm increasing compresion

[darrin75]

well the guy that build my engine said he used 3 quarter of cam, what ever the hell that means I don't know, but...damn I have had too much to drink..

[Purple440]

lol yeah my Uncle was down a few months ago and we were running the Charger for him and he said, "you must have a 3/4 race cam".  My first thought was wtf is that.  I gave him my cam specs and he was glossy eyed.  My dad later explained that back in the day they used to call them that, and it meant higher lift and duration cams used for mild racing.

[darrin75]

452 heads 509 cam 383 750 holly Dp.  It seems that I got great power at high rpms, but I need more torque?  What do I need higher stall or small cam?  Thanks, also is it a trade off,  I mean Will I lose power or horses on top end, if i go with more torque? Also the guy that build the tranny, put a stock converter, I think thats were I am losing it.  Just trying to learn as much as I can on these things, so don't beat me down to bad.

Personally, i would change the cam to something more streetable. 

How much gear are you running in this car ? 


Ron

I am pretty sure the gears are 3.23 in rear.  I want more torque, but then again don't want to lose alot top end speed.

[firefighter3931]

452 heads 509 cam 383 750 holly Dp.  It seems that I got great power at high rpms, but I need more torque?  What do I need higher stall or small cam?  Thanks, also is it a trade off,  I mean Will I lose power or horses on top end, if i go with more torque? Also the guy that build the tranny, put a stock converter, I think thats were I am losing it.  Just trying to learn as much as I can on these things, so don't beat me down to bad.

Personally, i would change the cam to something more streetable. 

How much gear are you running in this car ? 


Ron

I am pretty sure the gears are 3.23 in rear.  I want more torque, but then again don't want to lose alot top end speed.

The engle k56 cam and a ptc 11in street converter would be my choice. 




Ron

[71 B5383]

Drop the cam down a notch,or run 55's with a minimum 28-3k stall.A littlle big for the B engine in that mild of a state.That cam would serve a 4 spd set up much better as well.Gears are too small as well,they dont make things happen quick enough.I will be putting a 383 in my 71 Charger next year ,(if I cannot build the 472),either way,being at 4,000 lbs +,I want all the bottom and midrange torque as possible.I already know I will have a 2800 stall with 3.91's,I'm also going to find something with not as much duration as most cams,but more lift.I'm considering Hughes Engines for a good cam.My compression will be a minimum of an actual 9.5:1 with ported 346 heads.

[deputycrawford]

When  a guy tells me he has a 3/4 race cam. I tell him I usually run the whole race. Sometimes I ask him where he put the other 1/4. I have asked them if the car runs any good on 6 cylinders. Then I tell them to put the other 1/4 in and it'll run better.

[darrin75]

so If I go with 3600 stall, what is the best price and qualit to go for?? Links

[darrin75]

So If I go with 3.55 gears and 2800 stall ,would that get me close to where I want, without losing much top end and gas mileage??

[darrin75]

If I go with a higher torque converter with this set up what do i need from summit.  I have no means of changing the cam right now.  I I go with a torque converter, can someone explain somewhat of what that will do to my car.More torque out of the hole, loss of top end speed etc.. thanks guys i am no mechanic

[firefighter3931]

If I go with a higher torque converter with this set up what do i need from summit.  I have no means of changing the cam right now.  I I go with a torque converter, can someone explain somewhat of what that will do to my car.More torque out of the hole, loss of top end speed etc.. thanks guys i am no mechanic

Darrin,

You'll be dollars ahead by simply swapping the cam.....the right converter will cost over $600.00 to make that mismatched combo run properly.  You will also need to change the gears as well....and after all that the car won't be much fun to drive on the street. 

It allways amazes me that guys are willing spend hundereds to thousands of dollars to band-aid a car together.....when the simple answer is just a cam swap away. 


If you're dead set on running that cam : order a Dynamic 9.5in converter ($650.00) and a set of 4.30 Gears for your rear end which will cost approx $350-$400 with labor & parts. 


Ron

[darrin75]

ok, if I go with a 3000 rpm converter, do i need a new flexplate, what about bolt size I think the 727 is using 5/16 ? But the one I want is  7/16-20 in for hemi style.  I want to buy all I need at one time here?

http://store.summitracing.com/partdetail.asp?autofilter=1&part=TCI%2D142200&N=700+4294865449+4294905607+4294865436+400252+115&autoview=sku

[darrin75]

bump

[Steve P.]

three quarter, 3/4, 0.750 race cam... 


What a 3/4 race cam reallllly is, is a 0.750 lift cam for a V-8 cut down to fit a V-6.. Or would that be a DOUBLE 3/4 race cam???   

[darrin75]

three quarter, 3/4, 0.750 race cam... 


What a 3/4 race cam reallllly is, is a 0.750 lift cam for a V-8 cut down to fit a V-6.. Or would that be a DOUBLE 3/4 race cam???   

Not really sure, I could be wrong on that, however Still need to find all the parts I need to replace the stock converter with a new one.

[Steve P.]

Dump the 590 cam. It's made for a light body with a manual tranny and 4:0+ gears.... AND open headers....

[Mfr426]

This is a great line..." When  a guy tells me he has a 3/4 race cam. I tell him I usually run the whole race. Sometimes I ask him where he put the other 1/4..."

I'm going to have to use that one. Nice!