slant 6 or V-12?

[COLORMECLONE]

ive heard two stories of how the slant 6 got slanted.first,the long stroke made the engine too tall to fit under an Abody hood straight up.second,it was designed as a V-12 but was too big and expensive to prouduce,so it was basicly cut in half.both of these stories sound good to me.anybody really know?

[ram100]

I'd go with the first thing about it not fitting the A-bodies. Who really knows? It could be something totally different. Good question.

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1988 Dodge Ram D100, 3.9 V-6, Throttle Body Fuel Injection, Chrysler A-998 Transmission, Chrysler 8.25 Rear with 3.54 gear, Hercules Step Bumper 1200#tongue/12000#pull, Reese Hitch 750#tongue/7500#pull, Hopkins "Quick Connect" Trailer Plug, Hopkins trailer circuit breaker, Kenwood AM/FM Stereo CD player, Pioneer 5 speaker system, Mohawk aluminum cap(painted to match truck) with custom installed PM red/yellow marker lights and PM third brake light, 2 sets of Custom Cut Floor Mats Red and Burgundy, Custom modified Lighted Cup holder/Console with control switch.

[This message has been edited by ram100 (edited December 07, 2000).]

[goldduster]

The way I remember reading on http://www.valiant.org is that that chrysler was building an inline 4. They tested the 1st inline 4 and it didn't make much power. they knew they needed an inline 6, however it wouldn't fit under the '60 Valiant prototype's low hood. they slanted it so that it would fit.

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GOLDDUSTER
'70 Plymouth Duster
http://duster.excelland.com/duster318
The Plymouth Duster Homepage
http://duster.excelland.com

[dschumers]

Yes, it was for hood clearance. Also, the water pump was moved back onto the slant side, making the engine shorter, too. Dennis

[ram100]

Schweet!

[Blunderbus]

Straight Sixes (including slant sixes) were great motors. They're inherently balanced, like a V8. Damn shame Mopar stopped making them.

Just look what GM is getting out of their new straight-six in their trucks: 270 HP.

[ram100]

About the only thing I didn't like about the /6 I had in my 81 ram was the sound. I like the sound of the V-6 I have in my 88 ram better.

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1988 Dodge Ram D100, 3.9 V-6, Throttle Body Fuel Injection, Chrysler A-998 Transmission, Chrysler 8.25 Rear with 3.54 gear, Hercules Step Bumper 1200#tongue/12000#pull, Reese Hitch 750#tongue/7500#pull, Hopkins "Quick Connect" Trailer Plug, Hopkins trailer circuit breaker, Kenwood AM/FM Stereo CD player, Pioneer 5 speaker system, Mohawk aluminum cap(painted to match truck) with custom installed PM red/yellow marker lights and PM third brake light, 2 sets of Custom Cut Floor Mats Red and Burgundy, Custom modified Lighted Cup holder/Console with control switch.

[wildman]

I know a number of other brand fans that tout the durability of the slant six. Just one of many Mopar engines that are legends.

[ram100]

No doubt about it, the slant is infamous and will probably remain that way. Good motor.

[rather]

You guys miss out on another good feature of the /6. The long stroke that gives this engine massive torque output especially for a one barrel like mine. I know the engine sound is whimpy but changes to the exhuast can easily make up for it. I do regret that mopar never made a street legal mpfi system for it I think it would have been great to have one. Clifford Performance claims that with the right parts from them (I think) the slant would be capable of putting out one horse per cub. in..

I have vowed to myself not to replace it with a v-8, but to instead rebuild it to make it even better.


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1987 Dodge D100, 2wd, 3.7 Slant Six, California Certified, Automatic A904, 2.94 rear gear, K&N Filter Charger,
Jacobs Electronics Pro-Street Ultra Team Ignition sytem, Autolite Plugs #25, Basic Timing Set To 14 degrees,
Chevron supreme Gasoline, Castro Synthetic 10w-30 Motor Oil, Valvoline Synthetic Rear End Oil,
American Racing Wheels AR-767 15x7, Heavy-Duty front springs, Fully Loaded Clifford Alarm System, and now at
121,750 miles. Photos at http://photos.yahoo.com/jonrather

On the way new set of Bridgestone Desert Duelers A/T's
255/70/15 tires due on 1/1/01. Maybe even the SmartTire Monitoring System if the new model is released by Jan..

[ram100]

rather,

Funny you bring that up. Tonight in live chat we were talking about that and how they should have fuel injected that motor. I would have liked to see what it could do before they replaced it with the 3.9

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1988 Dodge Ram D100, 3.9 V-6, Throttle Body Fuel Injection, Chrysler A-998 Transmission, Chrysler 8.25 Rear with 3.54 gear, Hercules Step Bumper 1200#tongue/12000#pull, Reese Hitch 750#tongue/7500#pull, Hopkins "Quick Connect" Trailer Plug, Hopkins trailer circuit breaker, Kenwood AM/FM Stereo CD player, Pioneer 5 speaker system, Mohawk aluminum cap(painted to match truck) with custom installed PM red/yellow marker lights and PM third brake light, 2 sets of Custom Cut Floor Mats Red and Burgundy, Custom modified Lighted Cup holder/Console with control switch.

[rather]

To bad we don't live closer to each other. I would love to do some before and after test runs of modifications against your 3.9l.

Clifford Performance use to sell a mpfi conversion kit but I don't think it is around any more but I think turbo city makes a universal tbi for the /6. Both were made with gm parts mostly. I wouldn't have been satisfied with just a tbi unit.

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1987 Dodge D100, 2wd, 3.7 Slant Six, California Certified, Automatic A904, 2.94 rear gear, K&N Filter Charger,
Jacobs Electronics Pro-Street Ultra Team Ignition sytem, Autolite Plugs #25 gapped at .054in., Basic Timing Set To 14 degrees,
Chevron supreme Gasoline, Castro Synthetic 10w-30 Motor Oil, Valvoline Synthetic Rear End Oil,
American Racing Wheels AR-767 15x7, Heavy-Duty front springs, Fully Loaded Clifford Alarm System, and now at
122,550 miles. Photos at http://photos.yahoo.com/jonrather

On the way new set of Bridgestone Desert Duelers A/T's
255/70/15 tires due on 2/1/01. Maybe even the SmartTire Monitoring System if the new model is released by Jan..

[ram100]

I think the 3.9 had more HP, but they can't be compared as far as I'm concerned because one was a carb and the other is fuel injected. I have 125HP/195footpounds as numbers for my motor. I would love to have MPI. That would be great. I wonder if anyone has ever compared the performance of these motors? They would have to have the same mods but that would be interesting. That was funny I didn't catch it before. I wanted to replace my V-6 with a V-8 but the more I drove it the more I wanted to rebuild it and keep the truck the way it is!!

[Maxwedge]

one of the main reasons that I believe they got rid of it was weight and or size of the motor..I was alos under the impression that the /6 was half of a German Panzer(the Tank) v12..Chrysler Engineers during the war built and designed primarily Tanks in WWII. ALthought the Kokomo Tranny Plant#1 built Planes during the war.

[rather]

SAE net horse is 140@3900rpm and torque is 215@1600 for an '87 one barrel /6. two barrels added ten more on each measurement.

Compress ratio is 8.4 to 1. Yours I thinkis 9.0 to 1.

BTW I'm am now able to pull 38 mph out of my first gear before running to fast. When I change the rear ratio to 3.9 or 4.1 that will drop of course but takeoff will be even better.

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1987 Dodge D100, 2wd, 3.7 Slant Six, California Certified, Automatic A904, 2.94 rear gear, K&N Filter Charger,
Jacobs Electronics Pro-Street Ultra Team Ignition sytem, Autolite Plugs #25 gapped at .054in., Basic Timing Set To 14 degrees,
Chevron supreme Gasoline, Castro Synthetic 10w-30 Motor Oil, Valvoline Synthetic Rear End Oil,
American Racing Wheels AR-767 15x7, Heavy-Duty front springs, Fully Loaded Clifford Alarm System, and now at
122,550 miles. Photos at http://photos.yahoo.com/jonrather

On the way new set of Bridgestone Desert Duelers A/T's
255/70/15 tires due on 2/1/01. Maybe even the SmartTire Monitoring System if the new model is released by Jan..

[larrys dart]

HEY GUYS i now of a man in south Indiana that runs a /6 for power. 1976 dodge dart sport. the dart runs 7.32 in the 1/8 mi not to bad. no nos at all.
larry

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[dschumers]

larry's dart, That wouldn't be the Davis family with the 'Hillside Six" would it? Super clean car, and some very nice people.

[ram100]

I am seeing conflicting numbers. 3 books I have tell me the stock HP of the 225 in a ram was 100-110 HP and an extra 10 with that bolt on mentioned. I can't see dodge putting a less powerful motor (3.9) in the ram for the 88 model year. Does anyone else have numbers for that motor? On chat last night I also got the same numbers in my books from other 225 owners. 100-110HP.

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1988 Dodge Ram D100, 3.9 V-6, Throttle Body Fuel Injection, Chrysler A-998 Automatic Transmission, Chrysler 8.25 Rear with 3.54 gear, Hercules Step Bumper 1200#tongue/12000#pull, Reese Hitch 750#tongue/7500#pull, Hopkins "Quick Connect" Trailer Plug, Hopkins trailer circuit breaker, Kenwood AM/FM Stereo CD player, Pioneer 5 speaker system, Mohawk aluminum cap(painted to match truck) with custom installed PM red/yellow marker lights and PM third brake light, 2 sets of Custom Cut Floor Mats Red and Burgundy, Custom modified Lighted Cup holder/Console with control switch.


1999 Dodge Ram 2500 SLT Laramie 2x4, 5.9 V-8, Chrysler 46RE Automatic Transmission........more to come........