I performed this procedure on my 2001 4.7 it took a spell for the PCM to acertain timing and such not. The vehicle in it's entirety however as to having it's nut sack untied responded most favorably. Indeed the vehicle is 22+ years old, third engine and that #10 wire was virginal. I finally cut it. As aforementioned there was a bit of a spell of uncertainty. Once the PCM had sorted it'self it was off to the races. I got the jump on a 2005 Outback XT going up hill and it didn't catch up till I 100mph which beyond that point to me at least is academic. It's a 4wd Truck not a turbo-wagon. Still sufficinet enough change to make me question all the other "mods". Indeed give the PCM a minute to re-learn then you should begin to notice what the platinum tip plugs and overhead cam in a V8 were designed for. High revs and pull.
I'm happy it was worth it to you. But my engine is already so much more powerful than stock I did not realy notice not even after a while. I also did a factory reset so no need for it to learn slowly. I don't lose many races I have the shift kit and manually change gears. I change from second into drive at 125kph at that stage I've already won before changing into drive. My daily driver is a HO overland which does quite well but it's no where near as powerful or fast as the red "Carabao" as my wife named it. I have many plans for it but I'm still struggling with my health. I have many performance upgrades ready to install. Sadly the reason I don't drive it is because the lumpy camshaft and performance valve springs are too much for the timing chain and it stretched a new chain and broke the chain guide. So first on the list is a custom roller chain timing chain. The stock chains are terrible. I'll machine my own sprockets and use rollerchains. Future episodes. I keep telling people the timing chains are not up to performance valve train lumpy camshafts and high performance valve springs. 0 to 100 in under 6 seconds. I miss driving it Sooooooo much but if I do and break a chain I will do a lot of damage being a interference engine. I'll have valves hitting pistons. Happy jeeping thanks for watching. Rik
A short but big question my friend. But lets delete the HO from the question to start and compare the 4.0 straight inline 6 to the 4.7 V8. The HO is a option of more power or " High Output". I do not think either is superior over another . It depends on the consumer. Me I love the 4.7 V8 it is a great power to size ratio in fact it has more power per cubic inch than the 5.7 HEMI V8. It uses less fuel than the 4.0 straight 6 by quite a bit. Some love the 4.0 to go off road because it has torque and slowly pulls itself u and down the tracks. But me personally love the power and like to hammer my way through the tracks. Both engines have design problems but good maintenance fixes both those issues. I have a daily driver 4.7 that has only been serviced never had any engine repairs and is nearly at 250,000klm. People need a bit more skill to work on the 4.7 which can be a deciding factor depending on your mechanical skill. So in reality the choice comes down to YOU and only you on what you prefer. I am 100% the V8 man I love the power and I have a bit more mechanical skill compared to your average driver. I hope this answers your question Atom? Happy Jeeping Regards Rik
@@atom6999 I don’t think so. I own a 2000 4.0 and a 2004 4.7. The 4.0 has given me more of a fit than the 4.7. The 4.0 has cracked 2 heads and the transmission is garbage. The 4.7 needs its lash adjusters upgraded and keep regular service intervals. The transmission behind the 4.7 is tough as iron. Same as the Hemi transmission. That being said I also have a 2004 LJ with the 4.0. That engine is bullet proof. I don’t understand the issue with the WJ. But they are definitely different. Supposedly the same head casting as a Wrangler on paper but you hear a lot of head casting failures in the WJ and almost zero in the wrangler.
So this alteration is supposed to make it shift faster but you're still doing 1st to 2nd manually. Doesn't that defeat the purpose? It's impossible to shift faster than a computer.
It is supposed to reduce the power of the shift not the speed. It is supposed to give you a more powerful shift as I understood it. If you watch carefully I do both methods auto shift and manual shift. I like to shift manualy not for speed but choice of rpm at shifting. For example the transmission in automatic mode would not allow me to do 125kph in second gear. I can take of much faster with my modified setup by changing gears at peak power. The automatic transmission will shift for comfort and smooth ride but I don't want that. Well not always lol. Because my engine and transmission are modified I could not notice a difference in either auto mode or shifting manual but you may notice a difference in a totaly stock setup. Mind you I love my Grand Cherokee but I hate automatic transmissions. So I hope to one day convert it to a manual gearbox.
No never but mind you if you look at my channel I did install a Transgo kit which will help. I also do it to the HO Overland and they do not seem to mind at all. I hate Auto boxes and am looking forward to building a manual kit.
@@rodom303 Your welcome. Mind you this is my experience and a transmission specialist may tell you I am wrong. All I can tell you I shift my box manually 50% of the time and that is when I want the most power and I have never had a problem. I guess the reason I do it because in my opinion I know better than the gearbox when it's the best time to change. I highly recommend a line pressure builder. You can make your own very cheaply with a resister but I brought one of the shelf and have a clip installing it. th-cam.com/video/ZdXbzbC_Wuw/w-d-xo.html
@@rodom303 At the moment I have a 247 but I have a 242HD ready and waiting. I am also waiting for one more operation in Feb 26 2001 and everything will have to wait till then. Go for the 242HD if you can a much better option.
It was a standard 4.7 but build to higher specs and power than the HO engine. But the torque control system would be the same on both I would imagine. I did not do a power take of comparison in drive so will do that as soon as I feel well enough to do it. I have a neck injury and doing this clip caused substantial pain due to my head getting thrown back. I'm having an operation in 9 days so unsure when I can do this. Please like, subscribe and share this will help support this channel. Regards Rik
Its not a option but a modification you can do your self. th-cam.com/video/40h61ma2LBc/w-d-xo.html Not sure about your other statement about it not disconnecting in muddy conditions. Regards Rik
love the videos man. my mind was made when a guy with the standard 4.7 was getting 0-60 in 6.7 seconds and it was stock lol.
Thanks for the feedback. So you own a WJ 4.7 now?
Most people buy one and get adicted like me.
Ohhh and my wife and my kids lol
Home Mechanics for almost 2 years lol. had a i6 before that though
@@BuiltByRik sold my wife and kids to buy mine!
Dyno may not show a diff as no extra power is gained! Maybe 2 wj one with and one without cored cut, do a standing start 0-60?
@@terrystratford1235 You mush have sold them very cheap or got ripped off. I buy my WJ's for 2 to 3 k
I wasn't aware brits had these. More power to you.
I'm an Aussie mate.
He’s definitely an Aussie
Apologies, no offense intended sir. The quality of content transcends accent.
@@jamesdewer Thank you 😉
I performed this procedure on my 2001 4.7 it took a spell for the PCM to acertain timing and such not. The vehicle in it's entirety however as to having it's nut sack untied responded most favorably. Indeed the vehicle is 22+ years old, third engine and that #10 wire was virginal. I finally cut it. As aforementioned there was a bit of a spell of uncertainty. Once the PCM had sorted it'self it was off to the races. I got the jump on a 2005 Outback XT going up hill and it didn't catch up till I 100mph which beyond that point to me at least is academic. It's a 4wd Truck not a turbo-wagon. Still sufficinet enough change to make me question all the other "mods". Indeed give the PCM a minute to re-learn then you should begin to notice what the platinum tip plugs and overhead cam in a V8 were designed for. High revs and pull.
I'm happy it was worth it to you. But my engine is already so much more powerful than stock I did not realy notice not even after a while. I also did a factory reset so no need for it to learn slowly. I don't lose many races I have the shift kit and manually change gears. I change from second into drive at 125kph at that stage I've already won before changing into drive. My daily driver is a HO overland which does quite well but it's no where near as powerful or fast as the red "Carabao" as my wife named it. I have many plans for it but I'm still struggling with my health. I have many performance upgrades ready to install. Sadly the reason I don't drive it is because the lumpy camshaft and performance valve springs are too much for the timing chain and it stretched a new chain and broke the chain guide. So first on the list is a custom roller chain timing chain. The stock chains are terrible. I'll machine my own sprockets and use rollerchains. Future episodes. I keep telling people the timing chains are not up to performance valve train lumpy camshafts and high performance valve springs. 0 to 100 in under 6 seconds. I miss driving it Sooooooo much but if I do and break a chain I will do a lot of damage being a interference engine. I'll have valves hitting pistons. Happy jeeping thanks for watching. Rik
Is the i6 4.0 superior to the 4.7 HO??
A short but big question my friend. But lets delete the HO from the question to start and compare the 4.0 straight inline 6 to the 4.7 V8.
The HO is a option of more power or " High Output". I do not think either is superior over another . It depends on the consumer. Me I love the 4.7 V8 it is a great power to size ratio in fact it has more power per cubic inch than the 5.7 HEMI V8. It uses less fuel than the 4.0 straight 6 by quite a bit. Some love the 4.0 to go off road because it has torque and slowly pulls itself u and down the tracks. But me personally love the power and like to hammer my way through the tracks. Both engines have design problems but good maintenance fixes both those issues. I have a daily driver 4.7 that has only been serviced never had any engine repairs and is nearly at 250,000klm. People need a bit more skill to work on the 4.7 which can be a deciding factor depending on your mechanical skill. So in reality the choice comes down to YOU and only you on what you prefer. I am 100% the V8 man I love the power and I have a bit more mechanical skill compared to your average driver. I hope this answers your question Atom? Happy Jeeping Regards Rik
@@BuiltByRik yes thank you
@@atom6999 I don’t think so. I own a 2000 4.0 and a 2004 4.7. The 4.0 has given me more of a fit than the 4.7. The 4.0 has cracked 2 heads and the transmission is garbage. The 4.7 needs its lash adjusters upgraded and keep regular service intervals. The transmission behind the 4.7 is tough as iron. Same as the Hemi transmission.
That being said I also have a 2004 LJ with the 4.0. That engine is bullet proof. I don’t understand the issue with the WJ. But they are definitely different. Supposedly the same head casting as a Wrangler on paper but you hear a lot of head casting failures in the WJ and almost zero in the wrangler.
good to know bro, cheers
So this alteration is supposed to make it shift faster but you're still doing 1st to 2nd manually. Doesn't that defeat the purpose? It's impossible to shift faster than a computer.
It is supposed to reduce the power of the shift not the speed. It is supposed to give you a more powerful shift as I understood it. If you watch carefully I do both methods auto shift and manual shift. I like to shift manualy not for speed but choice of rpm at shifting. For example the transmission in automatic mode would not allow me to do 125kph in second gear. I can take of much faster with my modified setup by changing gears at peak power. The automatic transmission will shift for comfort and smooth ride but I don't want that. Well not always lol. Because my engine and transmission are modified I could not notice a difference in either auto mode or shifting manual but you may notice a difference in a totaly stock setup. Mind you I love my Grand Cherokee but I hate automatic transmissions. So I hope to one day convert it to a manual gearbox.
You’ve never had issue with shifting through the gears manually? I heard it’s bad for the transmission.
No never but mind you if you look at my channel I did install a Transgo kit which will help. I also do it to the HO Overland and they do not seem to mind at all. I hate Auto boxes and am looking forward to building a manual kit.
@@BuiltByRik nice ok good to know👍
@@rodom303 Your welcome. Mind you this is my experience and a transmission specialist may tell you I am wrong. All I can tell you I shift my box manually 50% of the time and that is when I want the most power and I have never had a problem. I guess the reason I do it because in my opinion I know better than the gearbox when it's the best time to change. I highly recommend a line pressure builder. You can make your own very cheaply with a resister but I brought one of the shelf and have a clip installing it. th-cam.com/video/ZdXbzbC_Wuw/w-d-xo.html
@@BuiltByRik what transfer case do you have?
I can’t decide if I want to stick with my 247 or go with the 242HD
@@rodom303 At the moment I have a 247 but I have a 242HD ready and waiting. I am also waiting for one more operation in Feb 26 2001 and everything will have to wait till then. Go for the 242HD if you can a much better option.
Oh, also meant to ask, would the torque control switch be evident if you were towing a trailer? (if you have a hitch and trailer to test with...)
I don't have a trailer to test but I would not think it benefit towing. No need to use WOT towing a trailer.
Was this tested on a standard 4.7 or was this on the High Output?
It was a standard 4.7 but build to higher specs and power than the HO engine. But the torque control system would be the same on both I would imagine.
I did not do a power take of comparison in drive so will do that as soon as I feel well enough to do it. I have a neck injury and doing this clip caused substantial pain due to my head getting thrown back. I'm having an operation in 9 days so unsure when I can do this. Please like, subscribe and share this will help support this channel. Regards Rik
yo I didn't have that opp on my 99 ? but when I was low range mostly muddy conditions driveing slow it gave me shit wouldn't disconnec
Its not a option but a modification you can do your self.
th-cam.com/video/40h61ma2LBc/w-d-xo.html
Not sure about your other statement about it not disconnecting in muddy conditions. Regards Rik
Nice job.. what work do you have done to your 4.7? And what kind of exhaust are you running? It sounds great and looks like it movies out
I have thinking about this mod for some time. So essentially, the mod works best take off and highway driving where a lot of throttle is used?
I don't use it. It may make a difference on a stock engine but the difference is not noticeable on my engine.