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Re: 5.7 vs 6.1 new hemi
[Re: hemibeep]
#494190
10/13/09 09:58 PM
10/13/09 09:58 PM
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Joined: Mar 2004
Posts: 375
Canada
DmanSRT71
enthusiast
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enthusiast
Joined: Mar 2004
Posts: 375
Canada
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I don't have a running 6.1 so I can't comment, but there's a good thread discussing some idle issues over here (link is for page 11, but there are more comments, take a read): for a bodies only It's a long read. Quote:
i am also using 04' ram manual tranny computer and hotwire wiring.
Has anyone else had idle issues with this setup???
O
69 Road Runner 383/auto/N96
71 Demon 340/4 spd
Would like to find a rust free Cuda body.
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Re: 5.7 vs 6.1 new hemi
[Re: mdurbahn]
#494191
10/13/09 10:12 PM
10/13/09 10:12 PM
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Joined: Mar 2004
Posts: 375
Canada
DmanSRT71
enthusiast
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enthusiast
Joined: Mar 2004
Posts: 375
Canada
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Re: the predator, I didn't see a direct question from you on that, but....I'm interested in this option as well. My research has shown that you can't disable all that you'd need to with the newer car controller with the Predator. The CMR tuning software that Diablosport puts out may be able to, but no one has (in my limited research) done this! The CMR (chip master revolution) software is available at the authorized Predator dealers, or you can pick up a license for somewhere in the $1000 range. I discussed this exact thing with a CMR tuner: big block dart.com My post is the first on this page. There is a quote from a CMR tuner in my city And thanks for the tip on the engine controller. I was aware of hotwire auto, but wanted to find one less expensive. Oh, and with respect to why we're off topic vs your original question, sorry about that! In my opinion, any discussion on this subject is good...but you're correct,,, hope you're ok with the intrusion. Quote:
Quote:
Thanks Jerry.
Edit (addition): Where does one purchase an 04 ram manual trans engine controller?
Thanks
Darren
Darren, I see they had them on the hotwire website for sale with the wiring kits. What I am trying to figure out is the Diablo programmer, there is alot of talk of that helping with the swap but I am unsure why exactly.
Last edited by DarrenM; 10/13/09 10:20 PM.
69 Road Runner 383/auto/N96
71 Demon 340/4 spd
Would like to find a rust free Cuda body.
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Re: 5.7 vs 6.1 new hemi
[Re: mdurbahn]
#494193
10/13/09 11:51 PM
10/13/09 11:51 PM
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Joined: Dec 2007
Posts: 1,572
Jacksonville Florida
elitecustombody
pro stock
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pro stock
Joined: Dec 2007
Posts: 1,572
Jacksonville Florida
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good info here, I just wanted to put my  about power difference between 5.7 and 6.1. Few years ago I was looking to trade in my Suburban for new R/T Magnum,so I took one for a spin and was very dissapointed at the lack of torque and power ,it felt like it was barely getting out of it's own way,lol,Just recently I drove somewhat beat and ragged out ,with 80k on the clock 300C SRT-8 with 22" wheels and could not believe the power that car had,it would burn rubber and scoot like crazy,unlike R/T Magnum with no miles,I will also add, that 300C was bone stock other than crappy wheels, so there is a big difference between those two motor,atleast IMO .If I ever decide to do a late model HEMI swap,it would have to be 6.1
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Re: 5.7 vs 6.1 new hemi
[Re: elitecustombody]
#494194
10/14/09 08:09 AM
10/14/09 08:09 AM
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Joined: Oct 2003
Posts: 387
Almont, MI.
gdemon
enthusiast
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enthusiast
Joined: Oct 2003
Posts: 387
Almont, MI.
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HI
Mine started up and ran fine with the stock 2004 manual trans ram computer. But with the new flash it runs 100% better. I had my flash done by B & G in warren mi. At the time he was the only one doing them. Now they are using the 2005 computers. Hot wire has them on his site. There is a guy on For A body's only that has a diablo and a custom CMR tune and has it up and running.
69 Barracuda
70 Cuda
70 Cuda
70 Cuda Conv.
70 T/A Challenger
70 Sport Fury GT
71 Demon 5.7 Hemi
72 Demon
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Re: 5.7 vs 6.1 new hemi
[Re: gdemon]
#494195
10/14/09 08:10 AM
10/14/09 08:10 AM
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Joined: Oct 2003
Posts: 387
Almont, MI.
gdemon
enthusiast
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enthusiast
Joined: Oct 2003
Posts: 387
Almont, MI.
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I got my computer from Ebay.
69 Barracuda
70 Cuda
70 Cuda
70 Cuda Conv.
70 T/A Challenger
70 Sport Fury GT
71 Demon 5.7 Hemi
72 Demon
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Re: 5.7 vs 6.1 new hemi
[Re: mdurbahn]
#494196
10/14/09 01:28 PM
10/14/09 01:28 PM
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Joined: Mar 2004
Posts: 375
Canada
DmanSRT71
enthusiast
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enthusiast
Joined: Mar 2004
Posts: 375
Canada
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Just to clarify, From what I've heard, the 04 and 05 Ram manual transmission computers are more forgiving in terms of controlling the hemi in the old cars like ours. The LX body computers are more difficult (newer magnum/300C/charger/SRT8). Unfortunately, I don't know this for certain, and I hate spreading or discussing rumours.....but I just did  There are a few posts on forAbodiesonly.com in the members builds sections where the guys used the 04 ram manual trans computer and tuned it with the diablo predator and it ran (check out 67limecrazy's post, if I got the name correct). I think to start I'll do this path - the stand alone units, while nice, is a bit pricey for me. So an 04-05 ram manual trans computer I assume is under $500. Use the harness as is until it runs, then cut and slash the stock harness of the things not needed. Pick up a diablo, pay for a tune (or a flash from B&G/hotwire) for say $400 (controller) + $?? for a tune. The computer, if I read things correctly, doesn't care if some inputs are not seen that aren't on our old cars....so it'll run correctly. Hopefully someone that's read up on all the computers can include a few comments on this subject. D Quote:
Quote:
Oh, and with respect to why we're off topic vs your original question, sorry about that! In my opinion, any discussion on this subject is good...but you're correct,,, hope you're ok with the intrusion.
Quote:
I agree, I like as much info as possible as I am starting to dive into this project! I was hoping the diablo was going to be a cheap out for using the stock ecu and and wiring harness because I do not like the idea of a stand alone engine management system.
69 Road Runner 383/auto/N96
71 Demon 340/4 spd
Would like to find a rust free Cuda body.
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Re: 5.7 vs 6.1 new hemi
[Re: gdemon]
#494197
10/14/09 01:31 PM
10/14/09 01:31 PM
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Joined: Mar 2004
Posts: 375
Canada
DmanSRT71
enthusiast
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enthusiast
Joined: Mar 2004
Posts: 375
Canada
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It ran fine with the stock 5.7l hemi program on it? Good to know. Do you know what the user name of the guy on forAbodies only you're referring to ? By the way, very cool Demon logo! I wouldn't mind picking up one of those for my 71 Demon when I'm done  Quote:
HI
Mine started up and ran fine with the stock 2004 manual trans ram computer. But with the new flash it runs 100% better. I had my flash done by B & G in warren mi. At the time he was the only one doing them. Now they are using the 2005 computers. Hot wire has them on his site. There is a guy on For A body's only that has a diablo and a custom CMR tune and has it up and running.
69 Road Runner 383/auto/N96
71 Demon 340/4 spd
Would like to find a rust free Cuda body.
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Re: 5.7 vs 6.1 new hemi
[Re: hemibeep]
#494199
10/16/09 03:11 PM
10/16/09 03:11 PM
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Joined: Mar 2004
Posts: 375
Canada
DmanSRT71
enthusiast
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enthusiast
Joined: Mar 2004
Posts: 375
Canada
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Keep me informed on what fixes the idle. I bought a 6.1 hemi last night, so the game is on! Do you know (or anyone), if a 2008 charger gas pedal works with the 04-05 ram computer drive by wire setup? Thanks D Quote:
I am still learning as I go.
There are a few codes that still show with the 05 ram even after the reflash. I am using the manual tranny setup, as this eliminates all of the newer tranny wiring, and speed sensor. Reflash takes care of security, and this is literally a four wire hookup. I am chasing idle issues. One possibility is a variance between throttle motor and pedal. the DRB can set the limits of voltage to make sure they are within range. I might also have a vaccuum leak or faulty map sensor. Hotwire is working on diablo for us, but they need our PCM to prgram base burm from our PCM, then they can set up diablo for adjustments. He recommends a flash after car is runnning to optimize our setup.
69 Road Runner 383/auto/N96
71 Demon 340/4 spd
Would like to find a rust free Cuda body.
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Re: 5.7 vs 6.1 new hemi
[Re: gdemon]
#494202
11/05/09 10:58 PM
11/05/09 10:58 PM
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Joined: Mar 2004
Posts: 375
Canada
DmanSRT71
enthusiast
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enthusiast
Joined: Mar 2004
Posts: 375
Canada
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Hey GDemon, what part number engine controller did you buy ? I found a source, but they want to know the part number! 2004 dodge truck 5.7 hemi computer for a manual trans. Thanks Quote:
I got my computer from Ebay.
69 Road Runner 383/auto/N96
71 Demon 340/4 spd
Would like to find a rust free Cuda body.
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Re: 5.7 vs 6.1 new hemi
[Re: mdurbahn]
#494203
11/06/09 12:42 AM
11/06/09 12:42 AM
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Joined: Dec 2007
Posts: 587
minot north dakota
ledft79
mopar
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mopar
Joined: Dec 2007
Posts: 587
minot north dakota
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If you are going to buy a 5.7 and all the stuff to get it running, Im going to guess that you will have a minimum of $6,000 plus any labor that you have to hire out, and that is if you put your self on a budget. The 6.1 will cost a couple of grand more, but you won't have to wonder, [what if]. I bought the 5.7 w/ 5 spd auto, and then researched and figured out that that was only half of the $ battle. I will have $8,000 in to mine if it goes good. I'm buying parts now & hope to start the project next summer. I'm saying, go for the 6.1, a project this big should be all that you wanted and then some.
DRIVE EM, DONT HIDE EM.
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Re: 5.7 vs 6.1 new hemi
[Re: mdurbahn]
#494204
11/06/09 01:43 AM
11/06/09 01:43 AM
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Joined: Apr 2009
Posts: 81
HOUSTON,TX
OSO
member
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member
Joined: Apr 2009
Posts: 81
HOUSTON,TX
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Quote:
I will be doing a new hemi swap into a b-body, I am trying to compare the 5.7 to 6.1 to see what would be best for me. I like the 6.1 because it has more hp, but it is quite a bit more expensive for not much more hp, would it be better to build the 5.7 up a little or go for the 6.1
If you have not picked one as of yet go with a 6.1 block there is more HP potential. If you still can not find one let me know.
Or if you just want to take a project off of my hands i will have a new 6.1 based 426 stroker with cp pistons, carillo rods, K1 crank, cnc heads with Manley valves here in two or three weeks built for a 300 shot. I will even throw in a manual pcm, also have a 727 with low gear set R/M LBA VALVE BODY and a Gear Vendors 1200Hp unit 
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Re: 5.7 vs 6.1 new hemi
[Re: 540challenger]
#494206
11/06/09 04:28 PM
11/06/09 04:28 PM
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Joined: Apr 2009
Posts: 81
HOUSTON,TX
OSO
member
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member
Joined: Apr 2009
Posts: 81
HOUSTON,TX
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Quote:
Has anyone compared the Revised 5.7 head to the 6.1 head.
I know the combustion chamber of the revised 5.7 very small compared to the 6.1 and the 5.7 head they also changed the ports on them but i haven't heard any comparsion of the 2 side by side
Just had my hands in a 09 5.7 head swap laid them next to my 6.1 heads without looking at the combustion chamber they are almost identical . I should have a few pics some where.
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Re: 5.7 vs 6.1 new hemi
[Re: Slipknot440]
#494208
11/07/09 11:43 AM
11/07/09 11:43 AM
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Joined: Mar 2006
Posts: 189
Portland,OR
rjsjea
member
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member
Joined: Mar 2006
Posts: 189
Portland,OR
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Quote:
5.7. i've sen them at pull-a-part and craigslist with less than 50K on them for 800-2000. Add a supercharger and spend as much if not a little less than a 6.1. Or if you plan on rebuilding a 5.7 get the stoker set up for it, 7.0 hemi sounds just as good to me
Supercharger kits for a 5.7 are $5,000+.....I bought my 6.1 without the ecu for $4,100.
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