1998 5.0 engine questions | Ford Explorer Forums

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1998 5.0 engine questions

oreokid220

Well-Known Member
Joined
October 9, 2001
Messages
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City, State
Wyckoff, NJ
Year, Model & Trim Level
1993 EB
Well I just got a 1998 Ford Explorer 5.0 AWD and I want to start on the engine as I did on my 1993 4.0. Well I am going to do exhaust and power programer and ship and stuff like that, but I want to knwo the facts about what I can do for superchargers, cams, throttle bodies, MAF's, intakes, heads, headers. I would love to do a stroker, but I do not have the money so I want to make a daily driver with alot of power closer to the 400 range with all bolt ons.
Also I would like some trans advice because I have seen the jet performance shift and trans go kit so let me know about the results with those.
Thanks again for the help and I hope to hit the power market before the summer and be hittin the 12s if that is possible on all bolt on and the stock block.

Jed

oreokid220@aol.com
 



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Intake.. u can go wtih a K&N drop in, mac or kkm. chip u can go with apten or dennis reinhardt. exhaust, watever u like - flowmaster, magnaflow, borla, gibson, etc. tb and maf - not sure if they give u a lot of power for the money.. but u can check out what they have at summit, jegs or truckperformance. cams. id go with the E303 from ford motorsports for good power gaines through all powerband. supercharger, you choices are limited to powerdyne or explorer express. powerdyne is centrifugal with higer gains, and explorer express is a roots style wtih better daily driving response. the **** kit i believe a few have installed and like it with no compaints. reaching 400 range hp is gonna cost some $$.. but people like troll, and soon rocket5979 will have more info on that for u. good luck

(only last year i would haved asked the same questions, and now after reading theforums for so long, i can answer them myself :D )
 






Thanks man.

Anyone else got some ideas and I would like to hear what you think of the stuff you run.

Jed

oreokid220@aol.com
 






4r70w warning

hey man one thing i highly reccomend is that you put a baumann or other high quality shift kit in your tranny and set it high to avoid loose shifts and also to minimize wear with the 400 horsepower numbers you want to make. i am going to wait a little till i can afford the 347 the way i want to do it but i should be able to reach low 13's here within the next 2 months. i am getting the powerdyne xb-1a s/c with 9 psi pulley, baumann shift kit, 77 mm pro m mass air meter, 3" dual exhaust with series 40 flowmasters, and zex dry 75 hp NO2 kit and a superchips "flipchip" to go along with the NOS and aggressive cam, maybe crane. later in a few months when i have saved another bundle of money up i am going to order the 347 complete motor 9:1 compression from fox lake or panhandle, canfield stage 2 or tfs stage 2 heads, victor 5.0 intake, 36 lb/hr injectors, ms dis 6 ignition, headers if i have not already gotten them by then, and i know i forgot something. but that is all i can think of for now. all i can reccomend is to do ALOOOOOOOT of research in here and other sites, magazines everything you can get your hands on. and plan your project from there. i have been on here for the last 8 months now just researching and looing and deciding what i want when i want it how i will afford it, and where i will get it from. all in all for the first phase it will cost me all of $6000 to make about 400 rwhp. after stage 2 of my project i plan on hitting a little over 500 rwhp without NO2. we will see. oh and also with all those power upgrades dont forget about hooking it all up to the ground, get better sawy bars suspension and such, and if really serious some good d/r's too will help alot. i hope this helps. email me if you have any other questions. i will be glad to help if i can.
 






oops

that is what i forgot. the dang 75 mm throttlebody. lol. man o man i would forget my head if it were not attached. i wish i could go with billet block for the 347 but i will end up going with forged because it is cheaper.
 






Thanks for all the great info. I do have one question the the stroker install is that a crate motor long block you are droppin in and also what is involved in the install. Do you still use the AOD trans and the same motor mounts and are all the electronics the same with the fuel injection. I see troll has a distributer and I am confused on my he does when the truck came with a DIS system with no distributer.
Thanks again for all the help and if the 347 stroker is just a swap of the blocks and retains everything else the same then I would be up for that. My one fear is oil blow by and life spand of these engines because I have heard bad stories. See my truck is driven alot and I need and long lasting and realiable one.
Also I see these turbo kits for the 5.0 miustangs and I was wondering if they could be used on the 5.0 explorer. Seems like if they can fit in the Mustang bay they could probably fit in the Explorer bay, any ideas?
Check out the first two links Dead Link Removed

Jed

oreokid220@aol.com
 






any mustang blower or turbo would have to be custom fabricated to fit the X. otherwise, someone would have done it already :p i believe psychotic is workin on a turbo for his ohv v6. but u could be the first for the v8.
 






I can see why the supercharger would have to be madified because of its pullies and things, but why would the turbo need it exactly?
Thanks

Jed

oreokid220@aol.com
 






I think Klowns is the one doing it. Or at least he is too.
 






Yeah i have spoke with klown and he is planing on being done in Jan with his OHV install.

Jed

oreokid220@aol.com
 






Now mind you, I am NOT asking if the cartech http://www.cartech.net/fordturbo.htm system is 100% bolt on. I am askin if the header and the turbo placement will work and then I, as the explorer owner, will make then intake piping and the exhause. The reason I ask is because with all turbo system it seems the hardest thing to do is make headers and match the turbo, but it looks to me that one of the cartech systems might be able to work and if not they also make the headers for us to play with. Thanks for listening and hopefully someone will know.

Jed

oreokid220@aol.com
 






Troll said awhile back no stang turbo can be adapted. the only way to do it on an X is to buy a turbo and have everything custom made. also, Troll has a distributor because at the time the programming out there would not allow his motor to rev over 5500. this is why he did the mustang motor swap. now this is not a problem. same with the stang charger, it will not work on an explorer. with big heads/cam, proper tuning and a charger, there is no reason why you wouldnt see 400rwhp on the stock explorer bottom end. you could also retain the stock intake manifold and 65mm. throttle body with no problems.
 






Any suggestions on parts that people actually use and the power that they have gained from them.

Jed

oreokid220@aol.com
 






you are in luck

hey jed the 347 motor is based upon the 302 block you already got in your truck. there are 2 was to go about this. a 347 kit cost bout $1800 or full built 347 motor fo about $2800. i would reccommend that you get the full motor beig that i doubt you have a forged or billet 302 block just sitting around in your garage, that way you know the block will handle te even bigger horsepower you will make later. i would go 347 before turbo anyday. just because it would be a little cheaper depenidng on what hookups you got, alot less time consuming, and made for your truck. you also have the 5.0 liter so it already has a great tranny in it, the 4r70w tranny is a really strong tranny, put a shift kit in it and like i said set it firm and you wont have any problems busting through 400 hp with it, unless you got an unusully high amount of miles on it. to me i consider the 347 like a BIG bolt on. there is not alot of fabrication that goes into one getting installed. unless you want the mustang options and accessories you need the mustang front drive assemblies, which we wont get into quite yet. if you want to break 400 at the rear just go with my list above all the way through my stage 1 and you should be at about 400 rwhp right there. unless anyone else can reccommend anything better or cheaper. yeah you could get the 347 but with that and the heads and cam and headers, TB, intake you are talking about another 6 grand in that alone too. let me go through a parts list and see how much it would cost(average jo cost). 347 motor $2700, s/c bd-11 kit with6 psi pulley for $2950 or for an xb-1a kit with 9 psi pulley costs bout $3800, victor 5.0 intake cost bot $550, exhaust costs bout $400-600 depending, superchips "flipchip" costs bout $400, NO2 dry kit costs $750-950, canfield heads stage 1+ ported costs about $2000, Pro m mass air meter costs about $300-400, baumann shift kit costs about $170, 36 lb/hr injectors costs about i think like $300ish or so, cam about $300 or so depending if it is custom grind, msd ignition about $400-450, TB go for around $290 w/ spacer, headers about like $350-400 ish too i believe. and i think that is it. anything else i missed guys? as you can see to do it right takes alot of money but it is sure going to be alot of fun to get there. lol. well hope this gives you a better understanding of what line you would want to pick to go through. let me add this all up for ya real quick without labor costs thoug alot of this stuff for labor could be done by you or by a buddy that knows what they are doing. ok soabout $13000 for all parts needed tomake well over 575 rwhp. labor depends on who you know. by the way that is with everything on the list at the high end of the estimated costs, including xb-1a s/c instead of a bd-11(if you are gonna go that far then by all means dont weigh yourself down with a bd-11 that can not run as much psi as you would want to run safely. well there ya go and if anyone has anything to add to what i said or quoted that is cool, sometimes i leave some thing out that i forget to mention. good luck.
 






I would really try some other ideas before you jump. I have a 5.0 88 GT. It's all I know. I have combinations of all kinds made up in my head and on paper. A guy at my local track runs high 12's maybe I'm not sure if he's there yet but definatly a 13.0 all day SUV. All he is running is nitrous. Now don't go thinking that nitrous is goin to kill your daily drivin mind set. You can pull it off just like him you just have to be smart with it. You need some good exhaust. I mean headers, high flow cats, and after cat. Nitrous is oxygen when it's burned in your combustion chamber. With more air you need more fuel. So bigger injectors and a higher flowing pump with an adjustable regulator will be a must. The last thing to make it all work is a GOOD custom burnt chip. You need to get a colder plug and retard the timing when running the "juice". Getting a custom burnt chip and letting them know you are runnin NOS at WOT they will program it to retard the timing even more on the top so you wouldn't be in the danger zone. Hook that up and it will take a while to get a safe combination set but you will be on your way.
 






Another thing if your really hooked on the "stoker" idea is a 331 stroker. A 347's geomertry is alittle messed. The rod length with the stroke length does not complement the cmbination in some cases it works against it self. A 331 has a better rod and stroke geometry. If you are lookin to go that way. As a 5.0 mustang guy I would love to get my hands on an X 5.0s intake. When ported and worked with it a good median between a Cobra intake and a GT-40. TBs I think you could use any one of the Mustangs 70-85mm. The tb on teh X 5.0 is a 65mm. As with your intake you are a lucky owner of a set of Motorsport GT-40P heads. Ford found with the poor headers they put on the X 5.0 that the performance stunk. So instead of making a better manifoild they just slapped a set of GT-40Ps on there.
They go a some better performance with the new combo so they shipped the X like that. With a set of aluminum heads from Trick flow, AFR, Canfeild, or Edelbrok you will be doing better. I'd just have your intake ported and matched to the heads of your choice. As for a cam Motorsport knows what there doing. A E303 will do nice for a daily driver. 70mm TB. 73mm MAF. 36lb injector. MSD 6AL or jacobs ignition.
From what i've heard Trans go makes a good product that has worked well in the Mustang AOD so I'd go with TRans go.
 






Originally posted by 91Exploda
A guy at my local track runs high 12's maybe I'm not sure if he's there yet but definatly a 13.0 all day SUV. All he is running is nitrous.
A low 13's possible high 12's suv with just NO2? What kind of supersuv does that dude have? is he running a dry kit or wet kit and how big a nozzle? do you know what he weighs? i know that it would take more than just NO2 to get into the 13's for an explorer. for instance stock 5.0 v-8 rated at 215 h.p. at flywheel. ok so take that and then take say a 125 shot NO2 just for good measure, ok well any advantages of the new burnt chip will mostly be outweighed by the timing retarding for NO2 so we wont even add the h.p. for that little addition. add a 2.5" dual exhaust with headers and you will pick up a few ponies too. so take 215+125+bout 20 for the exhaust=360 flywheel h.p. now to get rear wheel h.p. since the guy that started this thread has an automatic we will use that, but since he will have a shift kit we will set it a little in between for drivetrain loss so instead of 20% loss from auto or 15% loss from stick we will go with 17% loss. ok that comes to about 308 rear wheel h.p. since his explorer is a four door and we will give him a little credit that he doesnt haul a garage full of tools we will say he weighs 4400 pounds. ok so 4400 lb vehicle and 308 rear wheel horsepower = about a 14.1 @ 97 mph. damn even after all the credit i gave him he still has not busted into the 13's. it may have worked for your buddy that had an engine that stock form would put out 300 horsepower but not with an explorer. trust me i wish it were so. if i only had to buy NO2 to go 12's i would be much more happier. plus also i would rather put a superchrger on there and gain more horsepower and keep it there than juicing with nitrous. that is just personal opinion on that on though. however after the supercharger and a few other mods then by all means throw it on too. all i am reccommending is that whatever anyone does in the pursuit of horepower and torque is that they research for what they want, pick a plan and form a budget and timeline based upon the plan.
 






i don't have any hard numbers, but i ran a 15.3 with just the E303 and 1.6 roller rockers and bolt on air flow/timing mods and thats with a 4 door heavy as hell explorer turning 275/55/17 scorpions on chrome kmc wheels. I'd figure it weighs about 4500 so you can calculate back from that hp numbers (i don't really know what they are though i don't know the equation to use)
 






Hey drew actually it is a program i use. if you want it i could send it to you, it is only 120 KB. the number above come to about 248 rwhp to make the time and let me seeee......so flywheel would be bout 297 fwhp. and i know you got a shift kit so i would put the drivetrain loss @ about 17% loss like i did above and that puts you at.....290 fwhp. so by adding just those mods you gained about 75 horsepower. which makes sense. e-303 cam good for about 40 hp then airflow mods(though i dont know which ones so i will take a guess and say k&n cold air intake and exhaust will be good for another 15 or so. and the chip for another 15-20 maybe so that is about right. as for the roller rockers i dont know what just them would yield in terms of horsepower. hey i thought you said somewhere in another thread you ran like a 14.2 sec. 1/4 mile @ like 102 or something? or maybe i misread. anyways if you want the program i can just email it to you. obviously it isnt a perfectly exact horsepower calculation because different vehicles respond differently to different mods, but it will get you in the ballpark for sure.
 



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no, the 15.3 is my best, and that is without the shift kit. the other post was not true. lol. i was sort of throwing it out there because i was tired of all the threads that were all the same wondering what everyones times were (there had been three that one week) i figured most members would know that it couldn't be my real time (that would be some crazy n/a no nitrous power from a non stroked 5.0.

the other mods are fipk, mas, modded intake tube, chip, hyperthech tuning, baumann, headers and single 3 inch exhaust (sort of proves that is all you really need. huh?)
and as much dropped weight as i could do that day.
 






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