Jakee's 4.0 SOHC Build up discussion and motivation thread

[Jakee]

The Crank pulley is out for delivery now so I'll have it by the time I get home tonight. I need to do some school work but I'll probably stay up and get all the pulleys on. I'm pretty anxious to see what these new mods will do for me.

Guys, I said I was gonna do a Header comparison dyno, but the way it looks, I really just need to add them before I make my journey to see James. I just can't afford to make the trip twice and I think it would be better for me to have everything on the truck so James can get the most out of what I did.

Coil? Hmmm, not sure about this one anymore for a N/A goal and stock motor?

I hope that all my hard work, and attention to detials will pay off for me. I'm not 100% confident that I'll come up with the highest numbers but I should be up there.

Also, I don't think I'll see the 14's until I get the Posi trac rear end. I may try and do that before I go up there so that I can see about getting the 14 sec goal (HIGH)

Should be a good learning experience for me and I look forward to it!!!

 

[Jakee]

Pulley's are on. No more "Performance" mods for me until I get the power to the ground. Traction sucks, as I have NONE.

 

[aldive]

Pulley's are on. No more "Performance" mods for me until I get the power to the ground. Traction sucks, as I have NONE.

Pictures? Why not describe the install? How did you get the old crank pulley/damper off?

 

[Jakee]

Pictures? Why not describe the install? How did you get the old crank pulley/damper off?

I'll post some pics soon.

The old damper was a pain to get off. The puller I was using was a little too long. I had to install the crank center bolt that was supplied (Screwed in a few threads) and use that to place the puller on. I cranked it about half way off and the puller started to hit the radiator. I then loosened the radiator bolts and managed to move it back just a bit. This allowed me to pull the crank off to the point where I could finish pulling off with my hands.

To get the thing from not turning the motor over, I had to rig. Because I knew I wasn't going to use the old damper, I use a big pair of vise grips to wedge on there against the Water pump pulley(Being careful not to damage any bearings!). I also had to wedge a jack handle in the other side of the damper/belt surface to help keep the thing from not spinning. I then use sharp blows to loosen the bold. All this could have been avoided if I had a impact. I did what I had to do..

To torque the bolt to 80LBS. Well, I didn't. I was able to get it on there pretty tight and it's not coming off but 80 LBS didn't happen. I didn't want to damage the new parts so no wedging!

The Water pump pulley was easy. No comments.

The Alt pulley is yet to go on. I might not even put it on. Just depends.


After all was done I went out and tested it out. The thing just spins off the line. Real bad. I feather foot it to keep it from spinning but I hate doing that! I want that thing to take off like a rocket!

Anyways, I'll get the ford racing diff next go around.

 

[Turdle]

Jakee,
I once had a car that wouldn't hook for anything.

This helped quite a bit.
Air shocks--pump them just until rear rises 1/8-1/4 inch. This is increasing the downward pressure, and will help with wheel hop.
Then, some meats.

 

[aldive]

Jake - how did you get the crank pulley/damper bolt loose?

 

[Jakee]

To get the thing from not turning the motor over, I had to rig. Because I knew I wasn't going to use the old damper, I use a big pair of vise grips to wedge on there against the Water pump pulley(Being careful not to damage any bearings!). I also had to wedge a jack handle in the other side of the damper/belt surface to help keep the thing from not spinning. I then use sharp blows to loosen the bold. All this could have been avoided if I had a impact. I did what I had to do..


I rigged with vise grips to keep it from spinning (Clamp on the top right side of the old pulley. This will cause it to run into the water pump pulley once turned with the wrench). Also shoved a jack handle in the opposite side of the old crank pulley (Bottom left). This causes a wedge affect once you start to turn the bolt. Between the two I was able to get the bolt loose. I DON'T RECOMMEND DOING IT THIS WAY, SO DON'T. An impact is the proper tool for the job. I was just excited and did what I had to for it to come off.

Be sure to grease the new pulley and apply RTV to the keyway.

This is a very good Mod in my opinion. One of the best I've done.

 

[Jakee]

Jakee,
I once had a car that wouldn't hook for anything.

This helped quite a bit.
Air shocks--pump them just until rear rises 1/8-1/4 inch. This is increasing the downward pressure, and will help with wheel hop.
Then, some meats.

Thanks. I was thinking about what kind of shocks to get...

I'll first see what a Limited slip will do for me. I think it will help a lot. I just have one wheel spinning right now so that's why I'm able to spin the tire like I can. I've always said I've had traction problems. I'm at the point now where adding ANY performance mod does NOT make sence. I cannot get the power to the ground so I need to fix this first.

 

[Lazzman]

That sucks that you have a single track rear.

My Sport has the Automatic 4 wheel drive- as soon as the rears slip the front wheels kick in instantly. It is really cool as traction is never an issue, you would probably need over 600ft lb of torque to spin all four of those 255/70r16 tires.

Good luck with rear axle.

 

[Jakee]

That sucks that you have a single track rear.

My Sport has the Automatic 4 wheel drive- as soon as the rears slip the front wheels kick in instantly. It is really cool as traction is never an issue, you would probably need over 600ft lb of torque to spin all four of those 255/70r16 tires.

Good luck with rear axle.

Wish I had all wheel drive.

 

[jah81592]

I am glad your pulley arrived in a speedy amount of time. I assumed no news is good news. I second the thought that the pulley is an excellent bolt on! Finally got mine installed.

 

[Jakee]

Pulley.

I am glad your pulley arrived in a speedy amount of time. I assumed no news is good news. I second the thought that the pulley is an excellent bolt on! Finally got mine installed.

Sorry James - The pulley arrived in one business day and was a very good MOD in my opinion. When I first started it up, the thing reved up REALLY fast. I knew right then that something good just happened.

Best price, fast shipping, good customer service. I don't mean to sound like a salesman but I have to tell the truth about James's business.

Thanks!

 

[Jakee]

I would like to share my thoughts with you. Please correct me if you think I'm wong on this.

After Market pulleys for the 4.0 SOHC (actually any engine applies)

Underdrive Crank Pulley - The aftermarket Crank pulley is 24% smaller than the stock 4.0 SOHC pulley. This slows all the accessories: Alternator, Power steering, AC, and water pump. Because of this slow down, the accessories no longer rob the same amount of power from the engine, resulting in more power to the ground.

Did this one help me? Hell yes

Underdrive Water Pump Pulley - This is a underdrive pulley, as well, but because this is an accessory pulley, it needs to be bigger in order to slow the accessory down. (The aftermarket offering is 20% bigger) This is different from the crank pulley. The way I think of it is; Pretend you have only one accessory running off the crank. Let's say water pump....Pretend that the crank pulley and the water pump pulley are the same size in diameter. When the crank turns one complete turn, the water pump will also turn one complete turn. Now, if you make the water pump pulley bigger (Say twice the diameter as the crank), the results will be; when the crank turns one complete turn, the water pump will only turn a portion of the way because it's bigger. If you were to make the water pump pulley smaller then you'd have the opposite affect. The water pump would spin faster than the crank pulley and reverse what you were trying to accomplish (More power to the ground, not the accessories)

Did this one help me? Don't know? The water pump really doesn't rob that much from the engine in the first place. Next time you have the belt off, give her a spin. It spins pretty freely. Not sure how free it would be when the thermostat is open though?

Overdrive Alt Pulley - This aftermarket pulley turns the Alternator faster (Back up to speed). The only reason to do this is if the crank pulley slowed the alternator down so much that you it wasn't able to give the proper amount of power needed anymore.

Did this one help me? Don't know? I didn't install. I figure if I run into a problems with charging I'll put it on. If not, I'll use it as a paper weight.

 

[rocket 5979]

Did this one help me? Don't know? The water pump really doesn't rob that much from the engine in the first place. Next time you have the belt off, give her a spin. It spins pretty freely. Not sure how free it would be when the thermostat is open though?

Just because it spids freely at the roughly 100 rpms you spun it at by hand doesn't mean that it will not have lots more parasitic drag when spinning 50-60 times faster than that and also pumping so much water that the water in itself going through the water passageways is creating drag too. It is hard to compare when the comparison is based upon such a smaller scale. Scaling is good for lots of scientific comparisons, but not all.

 

[jah81592]

Jake - how did you get the crank pulley/damper bolt loose?

I used an impact on mine!-James

 

[Jakee]

I used an impact on mine!-James

I guess I should have asked to borrow your impact?

 

[Jakee]

Questions about my rear end

Okay, I've been talking about my traction problem for awhile now. The problem is there's only one wheel spinning, or is it?

I had a friend drive my truck today so I could see exactly what was going on off the line. He showed me a little trick that I didn't know anything about (I feel like an igmo) . What he did was put the truck in reverse while holding the brake and "pre-loaded" the rear. He put in drive and started power braking just enough to have the wheels start to spin. Low and behold, BOTH wheels spun? What the heck?

If you just go out and take off, one wheel spins. If you pre-load like this, both wheels seem to spin?

I haven't had the time to really put this to the test but can someone please explain what's going on here? I was under the impression that I had an "open" rear end. So now my question(s) are: what exactly is an "open" rear end? Do both wheels spin with an open rear?

My tag identification located on the rear is;

5614E
3 73 88 OB24

Please help explain what I'm seeing here.

Thanks :notworthy

 

[aldive]

What is the code on the door?

 

[aldive]

I used an impact on mine!-James

None of my impact wrenches would fit when I did mine

 

[rocket 5979]

Okay, I've been talking about my traction problem for awhile now. The problem is there's only one wheel spinning, or is it?

I had a friend drive my truck today so I could see exactly what was going on off the line. He showed me a little trick that I didn't know anything about (I feel like an igmo) . What he did was put the truck in reverse while holding the brake and "pre-loaded" the rear. He put in drive and started power braking just enough to have the wheels start to spin. Low and behold, BOTH wheels spun? What the heck?

If you just go out and take off, one wheel spins. If you pre-load like this, both wheels seem to spin?

I haven't had the time to really put this to the test but can someone please explain what's going on here? I was under the impression that I had an "open" rear end. So now my question(s) are: what exactly is an "open" rear end? Do both wheels spin with an open rear?

My tag identification located on the rear is;

5614E
3 73 88 OB24

Please help explain what I'm seeing here.

Thanks :notworthy

At times you can still spin both tires with an open rear depending on how quickly you break them loose and also if the surface you are on is level or not.