5.7 Hemi Conversions - XVMotors? Arrington Chip Killr? Other options?

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Kmrumedy

Kmrumedy

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Hi - I'm putting a 5.7 hemi in my 1971 Dart Swinger this fall/winter. I'm trying to make up my mind on the computer issue. I don't want to splice up an existing computer harness.

XVmotors has a carburated solution with their own chip. Arrington motors has a chip killer product which essentially is designed to house a distributor, eliminating the need for electronic ignition controls. Both are pretty pricey but I am willing to consider both and willing to purchase if they are worth the $$. ($2000 - $2400)

Not sure which way to go and was wondering what you guys would advise? Too many local shops giving me advice with no hands on knowledge to back it up. Question to those that have done the conversion, what would you recommend?

Have to make up my mind so I can start figuring out other things. As an example, I saw a great deal on an autometer tach on this forum that I would love in the Dart but given the Hemi's lack of single ignition coil not sure how it hooks up??!! Any one know?

Gah!!

Any help is appreciated.

Cheers,
John
 
personally i don't see why to go through all the trouble to put a genIII hemi in a car only to run a carb. may as well build a stout small block in that case.

give these guys a call. they make a harness to run the stock injection . http://www.hotrodlane.cc/
 
Agree with Joe,

http://www.hotwireauto.com/ .......these guys make the harnesses for Street and Perf last I heard. Probably be cheaper buying from the builder.

You can also call Dave Weber at Modern muscle...he has done several harnesses, he likes AEM systems

Fastmanefi.com ....he builds FAST systems for GenIII.

Three options I have been considering for my GenIII wiring/ECU
 
Actually a carbed 3rd gen will make more power then an efi set-up if you don't have a ton of time to spend tuning the car. I have seen a Chipkillr in person since we work with Arrington a lot and I have to say thats the route I would take and if you are interested I can get you a deal on one.
 
Bouchelon sells a computer/harness for putting the stock EFI in an A Body. They also sell the A518 5spd OD trans & computer to control it for A bodies.
The AlterKation set up makes this swap really sweet, but really expensive.

fastmopar
 
johnparts said:
Actually a carbed 3rd gen will make more power then an efi set-up if you don't have a ton of time to spend tuning the car. I have seen a Chipkillr in person since we work with Arrington a lot and I have to say thats the route I would take and if you are interested I can get you a deal on one.
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i would still build a small block if your going carb. to me the biggest thing about using the genIII hemi is getting all the drivability of injection. if going carb i would just build a stroker small block with ,that will run just as good as that hemi and probably do it a few bucks cheaper too.
 
abodyjoe said:
i would still build a small block if your going carb. to me the biggest thing about using the genIII hemi is getting all the drivability of injection. if going carb i would just build a stroker small block with ,that will run just as good as that hemi and probably do it a few bucks cheaper too.
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Yeah I agree but there is something about being able to say "I've got a Hemi" Heck I have 5.7 hemi parts laying around all over and I will put one in my Scamp eventually and I'm goin gwith the Chip Killr and one of my manifolds with a 6-pak
 
johnparts said:
Yeah I agree but there is something about being able to say "I've got a Hemi" Heck I have 5.7 hemi parts laying around all over and I will put one in my Scamp eventually and I'm goin gwith the Chip Killr and one of my manifolds with a 6-pak
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Um... That's NOT the Hemi they were talking about :D. That one is like a Diet soda Big Gulp. Sure, it's a Big Gulp... but it's a cup of nothing.
 
It may be a "baby" Hemi, but mine in my Charger makes 345 horsepower and 380 ft lbs at the wheels with nothing internally done and JBA heads, cats, and a programmer. They make PLENTY of power, with lots on tap. These are excellent and powerful motors that have true hemispherical combustion chambers. Actually, they make more HP per cubic inch than the stock 426 street Hemi, with close to advertised ratings.

In an old car, I agree to keep the injection, as it would help out with engine longevity (as these motors can go upward of 150-200,000 mi easy, injected). If you want to stay carb oriented and avoid wiring, it may be wiser just to go with a normal LA small block.
 
not to be rude but, i think the carb setups i have seen including Herb McCandles' car are AWESOME, if you wanna down play what a guy thinks is cool fine but I am sure he would rather have the knowledge and ability to do an injection setup, some of us just wanna build a cool ride(to us) and if we can get help that is even better
 
love the chip killer,, i have talked to those guys several times,, ide love to use it in my street rod,, but to me that price is way out of wack,,,2 grand by the time you get all the pieces,,ive only seen one so far on the road in a street rod,,
ive been told,,,the GM LS1 ,2 distributor conversion is only around 360 bucks,,cause arrington goofed on dizzy selection,,and had to R&D the timing cover to death,,thats why the cost is so high,,,14 grand they told me for the timing cover R&D,,,

yes very true for all you non gen111 the modern hemi ,makes more horse power per cubic inch then any other hemi to date,,,including the ground pounding 426..the motors are reasonable priced in yards,,its the electronics or what ever method you choose to make um run that makes it to costly,,,

the cheapest method ive seen is XV motor sports kit,,tuned carb,intake,ecu,and wiring harness 1200.00
 
I really do like the idea of having a new 5.7/6.1 Hemi in an older muscle car. But I guess I am biased because I have a 408 stroker sitting in my room, and thats what I would use...Much easier and cheaper to go with an aluminum headed 408...But, FWIW, sometime in my lifetime, I will have a gen III hemi in my ride. I do like the chipkiller idea, I think it would cure alot of the computer and wiring hassles. But, I am cool with either way...
 
I am running MSD's controller. Works great and is EASY to tune with a laptop. I am not a computer genius and I have no problems. Oh and by the way my stroked 5.7 makes 600 hp and pushes my 3700 pound Dart down the 1320 to low 11's. It will be 9's on the spray next season. With 2 edelbrock carbs. I believe the right look for vintage cars is carbs.

cecil1.jpg


engine2_001.jpg
 
I believe the right look for vintage cars is carbs.
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but the serpintene(sp?) belt, tiny alt, a/c and the rest of the motor all screem modern day motor. car runs and looks good i'll give ya that but i still don't see the point of doing the swap without taking advantage of all the injection and stuff. but hey thats just me i guess :)
 
Crazy4Carz said:
I am running MSD's controller. Works great and is EASY to tune with a laptop. I am not a computer genius and I have no problems. Oh and by the way my stroked 5.7 makes 600 hp and pushes my 3700 pound Dart down the 1320 to low 11's. It will be 9's on the spray next season. With 2 edelbrock carbs. I believe the right look for vintage cars is carbs.

cecil1.jpg


engine2_001.jpg
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I agree with you on the carbs!! There's something about that baaawaaa when the secondarys kick in that can't be duplicated with EFI. EFI is great if you never want to work on it and it's an everyday driver but for most the everyday driver isn't a classic car. BTW how tall is your air cleaner as the set-up I want to use must fit under the stock hood. I want the car to look plain Jane but GLH!!
 
dart looks great,,whats the dael with the MSD controller ??needs a program to start or is it all ready havea program to fire it up ???
 
I went with the xv set-up cause my son did not want a plastic intake in a 40 year old car,Which will be his someday--I used the truck hemi in my Duster--first turn of the key and it fires right-up with a big lope idol can't wait ti get to the dyno--Steve
 
Check out Indy cylinder heads line of late hemi carb manifolds and options too

There's a lot of choices now for non-EFI gen III builds
 
i was at the 4 wide NHRA event and talked with the guys from MSD,, there ignition controller for the 5.7/6.1 is 513.00 bucks,,

if you go with the MSD and a carb, you dont need a donor wiring harness ,MSD has an ignition box to coil harness new 200.00..

if you want to use the factory injection, you will need the factory harness and MSD adapter harness,,i think it was 175.00

i was recently told, but not seen that the dual quad edelbrock intake it a dual plane,,,, all the other carb intakes for the 5.7 are single plane,,[/COLOR

so for a stock application,,getting a donor vehicle is still the cheapest way to go it seems]
 
fstfish66 said:
i was at the 4 wide NHRA event and talked with the guys from MSD,, there ignition controller for the 5.7/6.1 is 513.00 bucks,,

if you go with the MSD and a carb, you dont need a donor wiring harness ,MSD has an ignition box to coil harness new 200.00..

if you want to use the factory injection, you will need the factory harness and MSD adapter harness,,i think it was 175.00

i was recently told, but not seen that the dual quad edelbrock intake it a dual plane,,,, all the other carb intakes for the 5.7 are single plane,,[/COLOR

so for a stock application,,getting a donor vehicle is still the cheapest way to go it seems]
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Not sure if cheapest is accurate but yes you would have practically all the parts. Be sure and get a 2004+ so that you can use a Diablo tuner to cope with the factory ECM.
 
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