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93 4X4
Dodge Dakota
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9/10/2007
19:49:15
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 Subject: 5.2 Pref.
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Hi every one I got a question for ya, I am getting a 95 318 for free cause it’s been sitting around campus in a shed and no longer turns over, as far as I can tell it has never been run. I am going to go through and rebuild it. Cause most likely the cylinder walls are rusted, but I am going to boar it .30 over and was planning on putting billet aluminum heads, an m1 intake, cam, rockers, ford 5.0 motor sport injectors and a Mopar performance computer. My question is what cam should I go with and any other suggestions would be nice because I am going to build this engine up and some days replace my V6 with it. So I got nothing but time.
Thanks and sorry for the long post
Adam
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daddio
Dodge Dakota
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9/10/2007
21:06:22
|  RE: 5.2 Pref.
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that's great Adam. first things first. what vehicle are you going to use this in? hopefully a Dak. 2nd, what will said vehicle see as primary use? mudder, rockcrawler, strip, daily driver, towing, etc.... 3rd budget(if needed).
if you determine those 3 things first and you can build the engine to suit that purpose the best and be satisfied with what you've built.
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93 4X4
Dodge Dakota
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9/12/2007
19:05:39
| RE: 5.2 Pref.
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O of coarse, it is going into my 93 4x4 Kota… um I have a good size budget as I am in no hurry and can slowly build it up. My v6 is running fine but its age is showing with how hard I run her... but it will be a daily driver, a lil towing, lil mudding (I ain't afraid to get her dirty) and a lil hot rodding/ showing off thrown in. I was just wondering what would be the best combo. I found some .40 over pistons, would they fit? Cause that would be one big engine!!! BIGGER = BETTER!
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daddio
Dodge Dakota
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9/12/2007
19:53:29
| RE: 5.2 Pref.
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you won't get much with just a .040 overbore. plus that's probably a little much for the block.
now a good stroker kit with a .030" overbore will yield 390 cubes. now we're talkin'. a good RV cam for mudding, towing. maybe some Edelbrock Alum performer heads. give these guys: www.krcperformance.com a call or
www.hughesengines.com.
you need all the components to work together. and i mean all, like heads, cam, torque converter(if it's an auto), rear gears, etc.....
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Tyler
Dodge Dakota
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9/12/2007
23:35:50
| RE: 5.2 Pref.
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Does anybody know how comp cams thumpr cam is? And if so would it be a good combo with M1 2bbl intake and 2.02 non-ported R/T heads 1.5 rr F&B 52mm tb complete msd ignition and pcm? And also whats going to be good for the bottom end? stroker?
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gen1dak
Dodge Dakota
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9/13/2007
06:30:58
| RE: 5.2 Pref.
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Just looking at the Thumpr specs makes me cringe. You're gonna need some custom programming to make that sucker work. Looks like it would sound fantastic, however.
"And also whats going to be good for the bottom end? stroker?" Huh? What are you asking?
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Tyler
Dodge Dakota
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9/13/2007
20:27:51
| RE: 5.2 Pref.
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Ya kinda what I thought to when I first seen thoughs specs. Would definetly compliment my gibson exhaust with no cat that already sounds great! Why would a special programing be needed? Does it make a huge difference vs. just programming a performance cam in in general? And what I meant was with this setup is a 390 stroker a good idea? Thanks
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gen1dak
Dodge Dakota
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9/14/2007
02:35:25
| RE: 5.2 Pref.
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The Thumpr cam isn't gonna generate a lot of vacuum. Typical computers like nice smooth idling, high vacuum cams to keep MAP sensors happy. Externally programmed computers and the use of wide ratio O2 sensors makes it possible for proper MPI function. The Mopar Performance computer tolerates lower vacuum levels, but really hot cams require even more help in the form of custom data maps to operate with the lower vacuum, etc. The larger the engine, the more vacuum it will generate under a given situation, with a given setup, so a stroker would be a good thing.
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Reapist
Gen I
9/14/2007
08:59:28
| RE: 5.2 Pref.
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If you want more engine stroke it out to a 390. Also, forget the aluminum heads, go with the cast R/T small valve heads and just do a little bowl blending. If you go with large valve heads you'll have to notch the tops of the cylinder bores for the valves to open without a clearance problem.
If you're worried about the small valve R/T heads doing the trick just read this. artivle.
http://www.popularhotrodding.com/enginemasters/articles/hardcore/0412em_magnum_cylinder_heads/index.html
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gen1dak
Dodge Dakota
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9/15/2007
00:23:25
| RE: 5.2 Pref.
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Actually, the 318's 3.91" bore can handle even a 2.08" intake valve without notching the bores because the valves open on the centerline of the bore.
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Tyler
Dodge Dakota
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9/17/2007
19:28:53
| RE: 5.2 Pref.
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Sorry I haven't gotten back been crazy busy. Thanks for all the help. One last question is 2.08 still going to be streetable? Its not a daily driver just on the weekends and occasional weekday. Thanks
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daddio
Dodge Dakota
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9/18/2007
08:39:33
| RE: 5.2 Pref.
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i believe the std 5.2 "large" intake valve is 2.02" and should flow plenty for what you need.
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gen1dak
Dodge Dakota
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9/18/2007
10:19:55
| RE: 5.2 Pref.
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Yes, 2.02" is plenty, just addressing the point on clearances. 2.08" is a total effort thing best reserved for racing.
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