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Dakota Performance
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Jim Sipkovich
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1/31/2001
18:45:20

Subject: Intake and other mods
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Hi all what do you think of an performance intake for the 5.2 liter. Any suggestions? Also does anybody know where I can see Dyno results for the 1.7 Roller rockers. Just want to see if its worth the $500. What would you have done first, your gearing(3.92 I have 3.55 now) and transmissiom kit put in or the rocker arms. Would I see more of a immediate result by doing gearing and tranny work or by installing the rocker arms. thanks



Bernd
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1/31/2001
23:54:39

RE: Intake and other mods
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There's only ONE available for the Magnum engines: Mopar Performance M1-MPI. It's an excellent manifold for the modified Magnums (with modified TB, Headers, exhaust, and 3.9x:1 gears). You'll need to get an installation kit and the one person who sells complete kits for the M1's is Jon Steiger: http://www.steigerperformance.com. (Also owner of the DML and one hell-uv-a nice guy.)

On the rocker arms, 20-24HP is the average for the R/T people and about the same for the 5.2L folks. Jim Harmon, I believe, had the Dyno sheets. I'll try to dig up his website and post the URL here.

You'd see the quickest results with the gearing first. As for any intake work, K&N Gen-II (or QuickD), Flometrics Billet 50mm TB (for the 5.2/5.9L), and a good cat-back exhaust system (with headers preferred) for even better results.

Don't bother with the roller rockers until you've enhanced the intake and exhaust system first. The added lift from the higher ratio rocker arms won't do a whole lot of good if you can't get the air in and out more efficiently.


On the gears...definitely 3.90's. They are very "happy" at the track and don't degrade your mileage...unless your heavy footed.

Bernd D. Ratsch
1997 Dodge Dakota SLT
Supercharged w/Nitrous

JImSIp
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2/01/2001
11:25:18

RE: Intake and other mods
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I have already have, K&N generation 2, MSD Ignition, Hedders , Flowmaster, Jet chip Stage 1,Taylor wires. Whats hpuld I do first reguarding intake work, throttlebody or roller rockers? thanks for the advice on the MPI do you know the cost of one and would it be worth getting a better torq converter? Thanks



Bernd
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2/01/2001
12:48:12

RE: Intake and other mods
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You'd get better gains from the TB first.

On the intake manifold: P5249816 MPI Aluminum Single Plane Rt. linkage Magnum Std. Truck 92 & newer. (Average price is $230 - $250).

Check with http://www.steigerperformance.com for a complete installation kit first since you will need this to install the M1-MPI Manifold.

On the torque convertor, 200-300rpm over stock is what most are using at the track...but a lot get away with just the TV Cable adjustment: http://www.fast4x4.net/cable.htm.




Bernd D. Ratsch
1997 Dodge Dakota SLT
Supercharged w/Nitrous

JIm Sip
Gen III
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2/01/2001
21:19:15

RE: Intake and other mods
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Thanks for your reply Bernd. How much is the 4 barrel throttle body, I have the cataloge from MOPAR but they dont list the prices I wonder why $$$??. What type of gears do you recomend, where should I purchase them from. Also is the MPI from mopar$$ Legal in Cali?

JIM sipkovich

Bernd
GenIII
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2/01/2001
22:09:27

RE: Intake and other mods
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Don't bother with the 4-BBL TB. Unless you've got some serious engine work done (as in: Head work, Intake work, Cam, and Blower) you won't gain anything from it. Several people have tried it (on the R/T list as well as on the DML) and most have reverted back to the 2-BBL TB. The M1 is NOT emissions legal at all. (However, that would depend on the Smog-Nazi doing the visual. If he/she doesn't know what they're looking at...they'll pass it on the visual.)

On the gears...for strip and the occasional street romp: 3.90:1. For the torque convertor, you can contact http://www.protorque.com. They'll build you a serious convertor for the money.


Bernd D. Ratsch
1997 Dodge Dakota SLT
Supercharged w/Nitrous

btt
Dodge Dakota
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1/20/2003
23:40:00

RE: Intake and other mods
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btt



Cpt. Steve
Dodge Dakota
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1/04/2004
21:44:12

RE: Intake and other mods
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I have a jeep grand cherokee with a 5.2L motor. It runs well for the time being but is high in milege. I was contemplating a crate motor but not sure if I should go for the 5.9l instead. I want to know if I make the change will I have to swap out most of my onboard electronics as well as the motor? I dont want to make this venture for more power in a fresh motor too much more expensive than if I just replaced th 5.2l. Do you think that I would be better off running the 5.2 with some boltons or just go for more cubic inches for my HP per $ dillima?



gen1dak
Dodge Dakota
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1/05/2004
01:14:15

RE: Intake and other mods
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Jeep ? first. You need to look at how much money you want to put into this thing. How much work will you be doing yourself. Are you prepared to rebuild an engine? If not, a 5.9 swap seems more your alley, and you'll ahve an automatic increase in power through displacement. You will need a 5.9 computer. The wiring will be plug-and-play. Tranny? Automatic? You'll need the flexplate for the 5.9. A 318 swap would be a no-brainer by comparison, but the 3.9 isn't that much more.
Jim? A far better approach for the money than roller rockers is to get a better cam. Increased ratio rockers will only increase the specs of the stock cam, and there's a lot to be said for that. A lazy cam (timing and ramp design) will only get a little better with 1.7's. Case in point: 20-24hp? Keep in mind that some of this power is through reduced friction, and some through the true-ness of the rockers--OEM's tend to be less than stated specs. They work, but they're only as good as the cam they're running with. A good cam will easily double those torque/hp gains, and if you still feel the need for more, you can go with the 1.7's afterwards. Even roller 1.6's will add power through reduced friction and true ratios. The rockers are easier, don't get me wrong, and something is better than nothing. The Magnum RT cam is emissions legal and bumps power up all over, pulls hard through 6,000rpm. Certainly a good place to start, but more work to install.
Gears provide an immediate change. They're cheap and they work.
Why soup up an engine if it's gonna get bogged down with a lazy tranny? Slap a good kit in that thing. Torque converter? At least $400, but swapping to 3.90's will lessen the need for higher stall a bit. Naturally, as you build up the engine and the powerband moves up the rpm range, a higher stall will help. After the tranny is tightened up, you'll be making the most of what you already have.
Intake. Only one? Yes, and no. The M1 is great, but the emissions issue is there, as some have already mentioned. However, what hasn't been mentioned is a modified stock beer keg intake. Hughes Engines and Magnum Performance offer these. You can send yours in for mods, or send it as a core and get one already modified. I'm sure there are others who do this as well. They modify the intake to perform a lot like the M1. Overall costs are very close, as are power gains. Externally, it's as stock-appearing as ever. Stockers are on eBay for $25-$50. Nobody has to know it's a heavy breather.
Mancini Racing handles only Mopar stuff. Check them for prices, etc. A good 2-barrel TB is really all you'd need for a street-driven 5.2.



vern
Dodge Dakota
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1/05/2004
09:45:12

RE: Intake and other mods
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also check hughes engines.com-they have intakes,tb,cams,rockers etc and their mopar only.

they have alot of info on their web

just shop around



JD
Dodge Dakota
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3/21/2004
04:34:32

RE: 94 GRAND CHEROKEE 5.2 Intake and other mods
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Is there a set of headers for 5.2 liter grand cherokee



Michael Freeman
Dodge Dakota
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3/29/2004
21:43:59

RE: Intake and other mods
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Hey guys I know this is a dak site but maybe one of you guys can help me out. I have a 2000 dodge ram 1500 with a 5.2 liter 318 in it. I was wondering if anyone knew a site or If anyone knew the dimensions for an s bolt on my throttle body to switch from the regular air intake system of the ram to a dakota air intake system



dabald
Dodge Dakota
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3/31/2004
22:43:15

RE: Intake and other mods
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The S bolt mod is:
4-1/2" long 1/4" threaded rod
From the bottom, measure up 1-7/16", make a mark.
From the top, measure down 1-11/16", make a mark.
Now bend the rod at both marks, approx. 35 degrees for both bends, so that the top and bottow sections are lined back up. A vise helps.
I hope this helps.
dabald
2000 Dakota 5.9 R/T, Regular cab, Firemist
ceramic coated PPH headers, Flowmaster 40's
Intense Perf. intake
PCM upgrade and 180 degree thermo, iat relocated,
MSD 6A, 8mm wires, Accel and Autolites
2400 RPM Mopar conv, Trans-go shift kit, Moroso cooler, Hughes 52 mm billet throttle body, Hughes stage 2 intake manifold.
NX express and remote opener going in Sunday...




jon ayers
Dodge Dakota
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9/03/2008
12:05:24

RE: rocker arm adjustment
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my rockers are tapping and i was wondering what the specs are for them?



Chris Henson
Dodge Dakota
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3/11/2009
12:57:17

RE: Intake and other mods
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Does anybody have or know any info. on the differences between a 1997 318 cam and a 1978 360 cam. I need specs. to compare.



gen1dak
Dodge Dakota
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3/11/2009
22:38:59

RE: Intake and other mods
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360 LA specs here:
http://www.allpar.com/mopar/318.html
318 Magnum here:
http://www.dodgeram.org/tech/gas/specs/5_2v8.htm
Once you take the rocker ratio difference into account, if it's a 360 2bbl cam, they're virtually identical in lift specs, and would be very close in duration as well.



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