How much Horsepower are you making?

-
johnparts

johnparts

Slammed 1
Joined
May 10, 2009
Messages
2,429
Reaction score
54
Location
Lisle Illinois
Hey guys just a quick question since I know most of you guys are running 5.7's and 6.1's in stock configurations has anyone dyno'd their combo's? I know what these engines can do in a New LX vehicle with all the computer BS fighting them so I'm wondering what happens when you bolt one of these engines to a 727 or a tremec 5 speed. Also has anyone decided to change heads/cam to increase power or are you all pretty happy with the performance of your engines the way they sit?

Also how many of you have retained the efi as opposed to going carbed. Do you have any driveability problems with your efi? Are you using a stock pcm or the aftermarket stuff?
 
my 5500 pound truck ran a 12.72 at 105 it had inertia heads, spartian can, a 150 shot, and all the supporting bolt ons. It was estimated to be over 500 to the wheels on the bottle, but was never dynoed. That same motor is going in the duster, minus nitrous and adding twin turbo's. I know it does not help you but that is all I have for ya.
 
03ramit1 said:
my 5500 pound truck ran a 12.72 at 105 it had inertia heads, spartian can, a 150 shot, and all the supporting bolt ons. It was estimated to be over 500 to the wheels on the bottle, but was never dynoed. That same motor is going in the duster, minus nitrous and adding twin turbo's. I know it does not help you but that is all I have for ya.
Click to expand...
No dude thats awesome info Thanks
 
John,

I can't help but to think with just simple heads, cam and ported intake we would see approx 425-450 RWHP depending on location and type of dyno. There are quite a few chargers running heads and cams that have broke into the 11.8 range and weigh 4400lbs. Take 1000lb off for an A-body and drop the TCM issues and you have a mid 10sec daily drive that get 20mpg! :cheers: We can accomplish this all with modified stock computers and harnesses ran by diablo. A heads and cam car can last you as log as you take care of it. It can be driven from coast to coast if you wanted. 15 years ago if you told a racer that he could make 450RWHP or 500 at the fly wheel and be able to dive it anywhere he/she wanted making 18-20mpg you would have been drug tested on the spot! It's 100% do able with the new 3Gen Hemis.

Jason
 
Oh Jason I completely agree that's why I posed the question in the first place. I know the head and cam 6.1's are knocking on the 10 second door in a like you said 4400 lb car
 
yeah i know its getting done, but you guys are making it sound a little too easy. yeah headed and cammed cars are getting in the mid 11's but they have done alot of other things to get there. suspension, tires, tuning, rear ends, trans stuff, bolt on's ect.
 
03ramit1 said:
yeah i know its getting done, but you guys are making it sound a little too easy. yeah headed and cammed cars are getting in the mid 11's but they have done alot of other things to get there. suspension, tires, tuning, rear ends, trans stuff, bolt on's ect.
Click to expand...

IT's extremely easy... I've been there done that. On a Lx the fastest guys are running stock R/T suspension, tuning is obviously diablo, a 8.75 will work fine until you get going deep into the 10's... the LX guys are running upgraded half shafts but that's no different then us upgrading our axles. The Lx guys are stuck running a 17" wheel too.. most guys are running 275/50/17's we have unlimited options in that department with most of us running 15" wheel. Our transmissions make going fast a lot easier than that Nag1 that the LX guys have to deal with. We can build our 727, 904, etc... for 1/3 of the price and use what ever TC we want.. LX guys are stuck using a Paramount or SHR transmission with both cost in upwards of $4000 plus another $800 for TC... Although if your an LX guys and ur only going in the 11's the just a upgraded Valve body would work too.

The bottom line is with heads, cam, intake and Drag radials a 4400lb LX goes in the 11's daily.... if you want to go real fast then yes, transmissions, axles, etc.. need to be upgraded in the Lx before you make that move.... It's all weight related too.
 
I'm curious about all of this as well but am really curious about engine controls, what are you running? I picked up an AEM programmable EMS for super cheap a year ago and have only heard of one other person running the same setup and he has a 6.1. He has had great success but it does take some time to get the tuning right. Tuning will no doubt be a process for me but like my entire build, it's a learning process... This is all great info and I can't wait to get this power into my build!
 
USCG CHARGER said:
IT's extremely easy... I've been there done that. On a Lx the fastest guys are running stock R/T suspension, tuning is obviously diablo, a 8.75 will work fine until you get going deep into the 10's... the LX guys are running upgraded half shafts but that's no different then us upgrading our axles. The Lx guys are stuck running a 17" wheel too.. most guys are running 275/50/17's we have unlimited options in that department with most of us running 15" wheel. Our transmissions make going fast a lot easier than that Nag1 that the LX guys have to deal with. We can build our 727, 904, etc... for 1/3 of the price and use what ever TC we want.. LX guys are stuck using a Paramount or SHR transmission with both cost in upwards of $4000 plus another $800 for TC... Although if your an LX guys and ur only going in the 11's the just a upgraded Valve body would work too.

The bottom line is with heads, cam, intake and Drag radials a 4400lb LX goes in the 11's daily.... if you want to go real fast then yes, transmissions, axles, etc.. need to be upgraded in the Lx before you make that move.... It's all weight related too.
Click to expand...
you ran fast with that setup, i know you did. but I have done a ton of cam and head swaps here in AZ. and I'm not seeing the numbers your talking about. Junior, has one of the faster head/cam cars here and he is not in the 11's (at least last i herd i have been out of the LXF world for a while now) most of the head/cam only LX's here dont run in the 11's. (could be a DA thing too)

now when you start talking a bodies, then yeah i fully agree with you. 10 will be easy on a cammed and headed motor. im trying to figure out how to slow my build down to keep it out of the 9's (to avoid getting an NHRA liscense and the SFI stuff that is required for the 9's) because i really dont want to go that far just yet. I want to get the car up and running and get the kinks worked out of it before i run the single digets. (BTW im building a spartan cammed and inertia headed twin turbo car)
 
03ramit1 said:
you ran fast with that setup, i know you did. but I have done a ton of cam and head swaps here in AZ. and I'm not seeing the numbers your talking about. Junior, has one of the faster head/cam cars here and he is not in the 11's (at least last i herd i have been out of the LXF world for a while now) most of the head/cam only LX's here dont run in the 11's. (could be a DA thing too)

now when you start talking a bodies, then yeah i fully agree with you. 10 will be easy on a cammed and headed motor. im trying to figure out how to slow my build down to keep it out of the 9's (to avoid getting an NHRA liscense and the SFI stuff that is required for the 9's) because i really dont want to go that far just yet. I want to get the car up and running and get the kinks worked out of it before i run the single digets. (BTW im building a spartan cammed and inertia headed twin turbo car)
Click to expand...


Yeah you nailed it.. it's 100% a DA thing. Here on the east coast we will run .75 faster than your guys b/c of DA.
 
thats nothing. i was racing in el paso tx, back when my truck had headers a 6.1 cam, and drag radials, and ran 16.0's all day long. drove to phoenix when we moved and it ran 14.6's all day long. talk about a DA change.......
 
03ramit1 said:
thats nothing. i was racing in el paso tx, back when my truck had headers a 6.1 cam, and drag radials, and ran 16.0's all day long. drove to phoenix when we moved and it ran 14.6's all day long. talk about a DA change.......
Click to expand...

Thats why I would never sponsor some one unless they are in good air...
 
Well, I can't comment on all the performance options ( my motor is stock, and the one in my 05 Magnum only had exhaust and CAI). But the guy's on Horsepower TV took a bone yard 5.7, gave is a stock rebuild, dyno'ed it with headers and a self tuning aftermarket EFI and made 400HP. I figure mine should be close to that because, headers (sort of ) no cats, CAI, and Diablo tune. I would be extremly happy with that in my 2700# Dart, and getting 20+ mpg too.
 
Tincup said:
Well, I can't comment on all the performance options ( my motor is stock, and the one in my 05 Magnum only had exhaust and CAI). But the guy's on Horsepower TV took a bone yard 5.7, gave is a stock rebuild, dyno'ed it with headers and a self tuning aftermarket EFI and made 400HP. I figure mine should be close to that because, headers (sort of ) no cats, CAI, and Diablo tune. I would be extremly happy with that in my 2700# Dart, and getting 20+ mpg too.
Click to expand...

Add day! I would grin from ear to ear!
 
70 Duster 06 5.7 hemi--XV kit,Cam,springs,650 quick fuel carb,TTi headers,hemi -6 controller,A833 4 speed,

mustang dyno results:

343 hp @ the wheels

338 ft lbs torque
 
ateam said:
Just spoke with Mazzolini, 482hp. (flywheel), Fast efi,headers and cam. That's it! I'm hopin for about 450 with ported heads in 5.7. We're jus' gettin started with these motors. :cheers: ateam.
Click to expand...
Hey Ateam I just sent you a lengthy pm
 
USCG CHARGER said:
IT's extremely easy... I've been there done that. On a Lx the fastest guys are running stock R/T suspension, tuning is obviously diablo, a 8.75 will work fine until you get going deep into the 10's... the LX guys are running upgraded half shafts but that's no different then us upgrading our axles. The Lx guys are stuck running a 17" wheel too.. most guys are running 275/50/17's we have unlimited options in that department with most of us running 15" wheel. Our transmissions make going fast a lot easier than that Nag1 that the LX guys have to deal with. We can build our 727, 904, etc... for 1/3 of the price and use what ever TC we want.. LX guys are stuck using a Paramount or SHR transmission with both cost in upwards of $4000 plus another $800 for TC... Although if your an LX guys and ur only going in the 11's the just a upgraded Valve body would work too.

The bottom line is with heads, cam, intake and Drag radials a 4400lb LX goes in the 11's daily.... if you want to go real fast then yes, transmissions, axles, etc.. need to be upgraded in the Lx before you make that move.... It's all weight related too.
Click to expand...

if those lx car run 11s ,remove 1000lbs plus lighter 904 trans , solid axle susp , 15" wheels so plenty of slicks or dr sizes , and all the know upgrades that can be done to make an a.body go faster on the drags like 90/10 shocks on the front and adjustables on the back , caltracs etc.

now i have to get a cold shower :toothy10:
 
swifter said:
70 Duster 06 5.7 hemi--XV kit,Cam,springs,650 quick fuel carb,TTi headers,hemi -6 controller,A833 4 speed,
Click to expand...


So I've been wondering this for a while now and never have managed to find a clear answer. What all is required to use an A833 behind a new hemi? I know the bellhousing pattern is the same, but what needs to be done regarding flywheels, input shaft stuff, etc? I've heard you have to trim the input shaft and have heard about offset flywheels, but most of the talk is about autos, so the stick guys seem to get brushed aside.
 
Map63Vette said:
So I've been wondering this for a while now and never have managed to find a clear answer. What all is required to use an A833 behind a new hemi? I know the bellhousing pattern is the same, but what needs to be done regarding flywheels, input shaft stuff, etc? I've heard you have to trim the input shaft and have heard about offset flywheels, but most of the talk is about autos, so the stick guys seem to get brushed aside.
Click to expand...

use the hemi flywheel a clutch disc that has a compatible spline to the a833. and a hydraulic slave cylinder trim about .25 to .38 from input shaft. and install a pilot bushing
 
Map63Vette said:
So I've been wondering this for a while now and never have managed to find a clear answer. What all is required to use an A833 behind a new hemi? I know the bellhousing pattern is the same, but what needs to be done regarding flywheels, input shaft stuff, etc? I've heard you have to trim the input shaft and have heard about offset flywheels, but most of the talk is about autos, so the stick guys seem to get brushed aside.
Click to expand...
I'm actually working on that myself too. I'm running a dode truck hemi flywheel and pressure plate and then a 70's clutch disc with the correct spline for my 833. Not sure about it yet because I haven't got the parts yet but the truck hemi clutch is 10.5" anso is the 70's unit so I'm hopinwith some dumb luck I can mate the 2.
 
johnparts said:
I'm actually working on that myself too. I'm running a dode truck hemi flywheel and pressure plate and then a 70's clutch disc with the correct spline for my 833. Not sure about it yet because I haven't got the parts yet but the truck hemi clutch is 10.5" anso is the 70's unit so I'm hopinwith some dumb luck I can mate the 2.
Click to expand...

We use a Hemi truck flywheel for dyno purposes, but had to knock the starter ring gear off so it would fit inside a SB bellhousing. I think Mopar Performance now carries a flywheel for the swap.
 

You must log in or register to reply here.
-

Similar threads

DionR
Why are the easy answers the hardest? Using the OEM fuse box and stock harness for a G3 swap
2
Replies
33
Views
2K
DionR
DionR
MoparManiac2000
EFI Question
Replies
11
Views
673
TT5.9mag
TT5.9mag
3
flywheel and bellhousing for EFI magnum 5/6 speed swap
Replies
4
Views
925
Professor Fate
Professor Fate
Coyote Jack
It's time for a change
Replies
21
Views
964
memike
memike
B
Blue Print Hemi
2
Replies
27
Views
1K
racerjoe
racerjoe
Back
Top Bottom