HOW TO! MAX HP 4.6L FORD 2V MODS!

how can you yet 140-horsepower tier 4.6 liter to valve let's find out in this video we'll show you not one way but two ways to improve the power output of your 4.6 liter 2 valve by a hundred and forty horsepower in 1996 Ford introduced the 4.6 liter to valve in the Mustang and it carried all the way to 2004 but they also ran the same combination as far back as 1991 and passenger cars they also use it in trucks meaning there's a ton of 4.6 there are two valves still out there running around and they all have one thing in common they all need more power when it comes to 4.6 liter two valve motors they're really two varieties we have the non p.i motor that went from 1996 to 1998 and in 96 it started out at 210 horsepower and for up that rating to 225 horsepower in 1998 but for 1999 they made a dramatic change they changed the cylinder heads camshaft intake and piston design and stepped all the way up to 260 horsepower in the power improved version or P I as we call it now in my opinion the best combination to have is actually the early non-peak motor so why would we want a less powerful version well there are a number of reasons so let's take a look so I choose the early non-p I Mustang over a later more powerful P I version well first of all the early version is much less expensive if you have to buy a Mustang the early version is much less money than the later P Ivor's but the real reason is because of the engine combination you see when Ford made the non P API version they combined an 11 cc dish with a 51 cc combustion chamber when they stepped up to the later P I version they had a 17 CC dish with a 42 CC chamber what that means in our plan was to install the later PI heads on our early non-p i version and so the small chamber and the small dish make more compression than either one of the stock combinations and more compression means more power knowing that that early non p.i motor was the hot set up we wouldn't grab one from a local wrecking yard we've grabbed a 1998 4.6 liter 2 valve and put it up on the diet we installed long tube headers a fast exit by management system and larger injectors to support our intended power output we then ran it in baseline trim then replace the factory camshaft the set of extreme energy 274 camps from Comp Cams we then added as ex nitrous kit and finish things up by replacing the stock heads with a set of fully ported p.i heads from total engine airflow we installed a matching p.i intake and an A Cappella body and elbow so what happened with all this testing let's find out okay the first thing we're gonna do is take a look at the power output of our stock non p.i motor and this was actually a 1998 version we got from a wrecking yard as we can see here run on the engine dyno with a set of long tube headers and open throttle body and no accessories the way we normally do with an electric water pump our non p.i motor rated it braided at 225 horsepower from the factory actually produced right at 260 horsepower flywheel and 341 342 foot-pounds of torque as you can see not a lot of rpm on this thing despite the fact that these were overhead cam motors it was a little disappointing when these things first came out and replaced the 5 liter because they were overhead cam they were big we were hoping oh good overhead cam these things are gonna Rev but for designed especially these early non p.i motors they designed them as torque motor so we were a little disappointed but as you can see here it didn't do too bad you know not a good power curve but not a lot the PIO motor the later p.i motors actually were a fairly good sized improvement over these and they beat the thing at least respectable but these early non p.i motors not that fantastic so the first thing that we did the same thing that everybody does is the first thing we did after putting and this one was already run with long tube headers and basically an air intake it to kind of had an open throttle body but first thing that we did was put cams in it now we put the comp extreme energy to 74 cams in it the non p.i cams meeting the low lift version of the comp cams so and here's what happened when we installed the cams the power output jumped quite a bit from 260 to a touch over 300 301 302 horsepower the peak torque was actually fairly comparable at 346 foot-pounds up from 341 or 42 all it did was kind of shift the curve out and make more make more horsepower the torque stayed about the same and as you can see down low here we actually lost a little bit of torque which is kind of typical you might be able to tune a little bit of that out but this is kind of what you should expect from just a cam change I mean these were fairly good sized cams the 274 s but this is what you can get from a camp change on a non p.i motor so now let's take a look at the next upgrade ok as you remember we installed the camshaft in the 4.6 liter non pi2 valve motor and picked it up from 260 to 300 a little over 3 and our horsepower so what we did next was actually add nitrous to the equation now obviously nitrous works with every combination no matter what it is and works well on these non P I motors so here's what happened when we installed a 100 shot of on the Zek system it was a wet EFI kit installed in in an inlet tube in front of the throttle body and the Zechs kit combined the nitrous and fuel in the single single fogger nozzle and we injected that in before the throttle body into the intake manifold so let's find out what happens when we add our nitrous here is the hundred shot of nitrous and as we expected it picked the power up from right around 300 horsepower to the right around 400 horsepower which is kind of exactly what we'd expect from a hundred shot and as you can see up here we got a big jump in torque all the way up to right at 500 foot-pounds of torque so you definitely notice hitting the button on this thing we activated this so little past 3500 we got the spike at 4000 RPM 500 foot pounds and this thing would carry 400 now there's it dropped off down a little bit out near 5,000 rpm and that's just because the thing got a little bit rich we could tune that out of it but we didn't spend a lot of time on this particular application doing the extra tuning and maybe a fresh bottle would also help there but you know we took away on this hundred shot we took away four degrees in this particular combination we didn't want to hurt this motor it was the only one that we had back in the day and like I said it came from a wrecking yard and we did not increase the ring gap on this we actually ran it the way that it came and we would eventually run superchargers on this which I'll be doing videos on that as well and never touch the ring gap although you know looking back we probably should have so that's the nitrous game we picked up a nice hundred horsepower but now let's take a look at another way you can add a hundred horsepower to this same non p.i combination now let's take a look at another way to add push the power output of our non pi4 point six liter to valve over the 400 horsepower mark so you'll remember we started out about 260 then we added our camshaft our XE 274 non p.i camshaft and pick that thing up to about 300 and when we added the nitrous we push that over 400 or right at 400 but there's another way to do it that doesn't require filling the bottle in doing all that and so what we did was instead of trying to jack up the power on this non P I version what we did was convert it over to a P I at least the top in so we installed the set of Pi heads and all the PI heads by themselves will certainly improve the power because they've got a smaller combustion chamber which means they're gonna add power just from an increase in compression and it's quite a bit it's over 10 CC so it's a nice increase they also flow more not not so much in terms of peak flow but a lot more average flow especially through on the intakes by side especially through the middle lift version and they also have a lot more exhaust flow but rather than just install us of the stock P I heads we had a set poured it from the guy's a total engine airflow and those guys really know their thing and the heads were float the the ported p.i heads float a ton more both than either the stock non P I or the P I heads so we installed those installed these same cams installed a P I intake and an AK you fab throttle body and again all of this was wrong with the same hooker long tube headers so if we take a look I'll show you what that p I top-end upgrade was worth on this non P I short block take a look at that now the nice thing is we still had basically the same bottom end that we had once we installed the cam and our non P I version but we had a ton more peak power I mean this thing made 406 or 407 and not only was the peak horsepower up but the peak torque was up to peak torque was up to 390 to 393 foot-pounds of torque and actually occurred a little later in the RPM range out at 4800 and peak horsepower occurred at 6000 rpm so it made the thing more usable without losing any low-speed torque so whether you've got a P I motor because this obviously this also works if you put cams and ported p.i heads on a P I motor you'll be able to make good power not quite as much as this because the compression will actually be down compared to the non P I short block and P I top-end hybrid combination like we had here but as you can see you can get power out of these P I motors that just take or out of these non P I and P I versions it just takes like it if it air in anything else it takes ported heads it takes the right camshaft and there are even bigger comp counts we could have run and the P I intake now on the intake side there's definitely more power to be had from other intakes but like most of them they're short runner and they tend to trade the power down low for more peak power at the top so if that's what you're looking for those are definitely out there but for right now this is a good upgrade check it out we went from 260 horsepower to a little over 400 horsepower on this on this non P I in 1998 4.6 liter 2 valve well let's get to the conclusion okay guys before we get to what did we learn here I need to point something out I didn't have any video of the engines running on the dyno this test was run maybe fifteen years ago as a series of stories for muscle Mustangs and fat sports shout-out to Evan Smith and Jim Kappa son so now we can get to what did we learn well what we learned here was that it's definitely possible to improve the power output of a 4.6 that your two belt just like any motor all you have to do is apply the right cylinder it camshaft in intake and in our case you can apply it to either a non P I or a Pilar but remember the non P I is the hot setup arm Richard holder thanks for watching guys make sure to like share subscribe ring the bell do all that stuff also make sure to comment because I'm gonna have playlists for every engine family coming up modular forwards coyotes LS small-block big bucks chevy dodge chrysler hemi all of that stuff I'll have everything because I test it all thanks for watching her

Channel: Richard Holdener

Views: 176,553

Rating: 4.9294271 out of 5

Keywords: ford, modular, 4.6L, 2V two valve, camshaft, comp cams, PI, Non-PI, dyno, hp, torque, richard holdener

Id: trS4YdTeCkQ

Length: 12min 8sec (728 seconds)

Published: Sun Feb 02 2020