Moparchat - Home of MOPAR enthusiasts worldwide!



Go Back   Moparchat - Home of MOPAR enthusiasts worldwide! > Technical Forums > Performance Talk

Click here to search for Mopar cars and parts for sale.


Reply
 
Thread Tools Display Modes
  #1  
Old 04-12-2002, 04:24 AM
xroadrunnerx xroadrunnerx is offline
Inactive User
 
Join Date: Dec 2001
Location: Saskatoon, Saskatchewan
Age: 44
Posts: 26
Default 440 Power ???

I'm wondering what kind of power and quarter mile times I could expect from this setup:
-440 engine
-9.5:1 forged SpeedPro pistons
-forged connecting rods
-stock crank
-edelbrock cam .480/.495 with 238/246 degree at .050
-edelbrock performer RPM manifold
-Holley Street Avenger System Carb 770cfm
-Mopar Performance Ignition
-1 7/8" headers leading to 2.25" tailpipes exiting through dynomax ultraflows single chamber mufflers
-727 tranny w/stock converter
-8.75" rear differential w/3.91 gears and 26" tall tires
All in my 71 Satellite weighing 3850# without me. 4030# w/me.
Thanks for any and all opinions.
Reply With Quote
  #2  
Old 04-12-2002, 08:55 AM
6pakman 6pakman is offline
Inactive User
 
Join Date: Oct 2000
Location: motor city mich.
Posts: 623
Default

about mid 14's.
Reply With Quote
  #3  
Old 04-12-2002, 08:55 AM
sbuc72's Avatar
sbuc72 sbuc72 is offline
Inactive User
 
Join Date: May 2001
Location: Ontario/Canada
Posts: 254
Default

Thats similar to my 440 setup, except my compression is around 9.8:1, and i have ported heads, at the flywheel i make 401hp, 513lbs/torque.
I'm still waiting to drop it in my ebody though :\

.sbuc72
Reply With Quote
  #4  
Old 04-12-2002, 11:34 AM
Jims451 Jims451 is offline
Inactive User
 
Join Date: Mar 2001
Location: Littleton, Colorado
Age: 59
Posts: 924
Default

You din't say what cylinder heads or modifications done to them, but from the sound of it, maybe high 13's to low 14's?

Why only 2.25" exhaust? Using the stock exhaust pipes? I would use 2.5" exhaust pipes.

Why the Edelbrock cam? There are better cams avaliable.

What is the stall speed of the stock converter?
The stock converter will likely hurt performance (ET.) With your 3.91:1 gears and 26" tall tires you can run a higher stall converter without too much slippage at highway speed because the engine will be reving about 3400 RPM at 65 MPH.

I wish that I only added #180 to my cars weight
Reply With Quote
  #5  
Old 04-12-2002, 10:58 PM
440BB 440BB is offline
Inactive User
 
Join Date: Mar 2002
Location: hesperia california
Age: 37
Posts: 92
Default 440 power

no way it will only reach mid 14's with all thows parts, if some people read my post above. in my 69 newyorker, stock except dual exhaust foward timing, t.n.t air cleaner i ran a 14.76@99mph.
with all thows parts you should hit low 13's. i may only be 16 yrs. old but i was born around and raised with fast mopars. (dads 68 340 cuda 12.66@118mph)...... (uncles 70 roadrunner 440, 10.21@141mph)
Reply With Quote
  #6  
Old 04-13-2002, 12:25 AM
dave571's Avatar
dave571 dave571 is offline
Inactive User
 
Join Date: Feb 2001
Location: carstairs,alberta,canada
Posts: 2,809
Default

There's more to speed than a parts list 440bb, and I don't see anything in there that would make that car run low 13's.(not critisizing you xroadrunnerx, it's a good setup)

Sounds like a good combo, should do well. but as some of the other guys have said, what heads/head work? For the most part, the combo isn't much more, if any, than a stock 440 magnum(not that there is anything wrong with that.)

stock stall converter? 440 converters range from 1200 to 2200 from the factory. which one do you have?

Also agree with going to the 2.5" exhaust, other wise your just choking the headers.

Low 14's, high 13's once you know the car well.

If there's a parts mismatch(like a 1200 stall converter, and heads that are seriously ported) then it'll be high 14's
Reply With Quote
  #7  
Old 04-13-2002, 08:07 AM
dkn1997's Avatar
dkn1997 dkn1997 is offline
Inactive User
 
Join Date: Dec 2001
Location: Coram, NY
Age: 54
Posts: 1,057
Default

I am running a similar setup in my charger. check my sig. I have stock 346 heads with the big valves, and some bowl blending, but nothing else. with a 2800 stall conv w/3.55's on hoosier quicktimes (26" tall) I ran a 13.094.

that's with same compression as you, edelbrock 750 eps carb, performer rpm intake and not too much converter. That was with zero tuning, no jet/metering rod changes or adjustments, didn't even touch the timing. If it did not get dark, I would have been in the twelves, easy. I never even popped the hood at the track, biggest prob was still traction.

I am running SRP lightweight pistons, more converter than you, and a full 2 1/2" exhaust w/ two chamber flowmasters. Our cars are probably close in weight.

Before anyone kills me on this, I do realize that there are other variables, but you should be abel to run mid 13's. I would change that converter, though.

Ironically, I slowed down when I put fuel injection on. admittedly, not the best system (projection) but for mostly a street car, I will trade the 3 tenths for easy starting and better response down low!!!

hope this helps
Reply With Quote
  #8  
Old 04-13-2002, 08:16 AM
6pakman 6pakman is offline
Inactive User
 
Join Date: Oct 2000
Location: motor city mich.
Posts: 623
Default

wow 440b!! you've got alot of experience! i still say mid 14's.
Reply With Quote
  #9  
Old 04-13-2002, 09:29 AM
Jims451 Jims451 is offline
Inactive User
 
Join Date: Mar 2001
Location: Littleton, Colorado
Age: 59
Posts: 924
Default

dkn1997 has a good point I left out, traction!
If you get the car to launch good (higher stall converter) this will really reduce your ET's, but you will need some sticky tires to get the car to hook up.
Reply With Quote
  #10  
Old 04-13-2002, 02:48 PM
dkn1997's Avatar
dkn1997 dkn1997 is offline
Inactive User
 
Join Date: Dec 2001
Location: Coram, NY
Age: 54
Posts: 1,057
Default

yeah, jim, traction is so important. I switched from quicktimes to Mickey thompson et streets, and still do not hook up for $hit!!

maybe time for some caltrax bars or something!
Reply With Quote
  #11  
Old 04-13-2002, 03:08 PM
440BB 440BB is offline
Inactive User
 
Join Date: Mar 2002
Location: hesperia california
Age: 37
Posts: 92
Default 440 power

QUITE THE COMEIDIANS I SEE.
Reply With Quote
  #12  
Old 12-07-2002, 03:34 AM
pcb1's Avatar
pcb1 pcb1 is offline
Inactive User
 
Join Date: Aug 2002
Location: Petaluma, Ca.
Posts: 63
Question

Hey, if I'm running 80mph @ 4000rpm, what is my stall speed? 3:54:1 gears 440/4/727
Reply With Quote
  #13  
Old 12-07-2002, 10:16 PM
dave571's Avatar
dave571 dave571 is offline
Inactive User
 
Join Date: Feb 2001
Location: carstairs,alberta,canada
Posts: 2,809
Default

Impossible to determine stall speed with the info you have given.

The only accurate way is a stall test.

Hold the car with the brake.

Put it in gear, and pin the throttle.

Don't allow any wheel spin with the brake. The resulting engine rpm is your stall speed.
Reply With Quote
  #14  
Old 12-09-2002, 03:19 PM
pcb1's Avatar
pcb1 pcb1 is offline
Inactive User
 
Join Date: Aug 2002
Location: Petaluma, Ca.
Posts: 63
Idea

Ohhhhh! Brake Torque. Isn't that a good way to blow out a rear seal? Okay, how about this: 727auto 3000rpm=60mph, 4000rpm=80mph. Waddya think?
Reply With Quote
  #15  
Old 12-09-2002, 03:42 PM
451Mopar 451Mopar is offline
Inactive User
 
Join Date: Sep 2000
Location: Aurora, Colorado
Age: 59
Posts: 1,831
Default

Just a total guess, but the engine should be making about 420 to 470 Hp depending on how good the heads flow and how well the engine is assembles and tuned.

This should give you about 350 Rear wheel HP?
That is about 11.5 lbs/HP

That should be able to put you into the 13's if the converter and traction are good, and the track is near sea level?

The real small exhaust will hurt your power/performance.
Use a mandrel bent 2.5" dual exhaust or 3" exhaust system.
Reply With Quote
  #16  
Old 12-09-2002, 11:16 PM
Ihategms's Avatar
Ihategms Ihategms is offline
Inactive User
 
Join Date: Dec 2002
Location: racine,wi
Age: 54
Posts: 10
Default

I can't say enough about the HUGHES HE2330BL cam
go with that one !!! you WILL be happy. MAYBE low 13's
with a convertor (I'd suggest a dynamic)
Reply With Quote
  #17  
Old 12-09-2002, 11:49 PM
dave571's Avatar
dave571 dave571 is offline
Inactive User
 
Join Date: Feb 2001
Location: carstairs,alberta,canada
Posts: 2,809
Default

Pcb1, the numbers you are giving could be used (with an exact tire size) to calculate converter slipage. Converter slipage and stall speed ARE NOT the same thing at all. Higher stall converters will have higher slipage as well, but the relationship is hardly exact. Even a very high stall converter will only have a drop of 20% under light load cruise conditions.

The stall test instructions I gave you, are from a SERVICE MANUAL. A stall test is comonly used by transmission shops to test torque converter condition. Can easily be used to find if a stator clutch is slipping(this reduces stall speed considerably) There are charts in the service manual giving stall speed ratings by engine code, and converter diameter, ect.

Obviously you want to take precautions when doing this test. Engine should be at operating temperature, trans fluid checked(when idling in neutral, not park!) and don't hold the throttle down for more than a few seconds as it makes the converter very hot, very quickly.

Any seals that fail, when the test is done properly, were on the verge of failing anyway.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Power Programmer / Power Chips ehostler Diesel & Turbo Diesel Chat 12 10-12-2006 11:21 AM
Power or No Power Brakes sfkennedy Performance Talk 13 02-19-2004 02:13 PM
Adding power windows and locks to non power?? zig Dakota Truck Forum 4 02-05-2003 07:49 PM
Power In but No Power Out at Ignition Switch. Leo Phelps Ram Truck Chat 6 12-30-2002 07:05 PM
power window/power lock wiring denros Ram Truck Chat 0 04-26-2001 12:49 AM




All times are GMT -4. The time now is 12:53 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
. . . . .