THe NAC Lots-O-BFG KO2 Thread

[CTeunuch]

Re: THe NAC Lots-O-Post Thread

when my jeep was on the road even with the four link rear it drove AWESOME. so your's would be fine. don't join the single-knuckle crowd just because its what all the cool kids do.

I've owned/driven multiple ZJ's without swaybars, and for the minimal work it was to weld on the brackets I already had laying around I decided it was worth it. It only takes a few minutes to disconnect at the trail too, so that gives you guys a chance to go knuckle's up before we head out.

 

[5spd_xj]

Re: THe NAC Lots-O-Post Thread

I'm going to call you the one-knuckler from now on. It's unfortunate, but you've officially earned it.

 

[5spd_xj]

Re: THe NAC Lots-O-Post Thread

I'm hungry.

 

[MoparManiac]

Re: THe NAC Lots-O-Post Thread

I could use some Panos.

 

[5spd_xj]

Re: THe NAC Lots-O-Post Thread

I have Poptarts. At least I got the first 2 letters right. Maybe I'll get pano's tonight though

 

[squashman702]

Re: THe NAC Lots-O-Post Thread

Another storm ****ing up my work week. Fannnnnntastic!

 

[vetteboy]

Re: THe NAC Lots-O-Post Thread

Got woken up this morning with the news that my 4:55 flight to Dallas got cancelled.

New plan is to take a half day (sorry boss), drive down to the LII shop, get a ride over to Philly, take a train from Philly to Baltimore airport, and fly out of there at 7:15, leaving us 35 minutes to make the connection to Abilene TX, hopefully find a rental agency open, and drive another few hours to the middle of bum**** nowhere so we can be ready tomorrow when the race car gets there for tuning.

Somehow I'm supposed to concentrate on working the next few hours...right.

 

[MoparManiac]

Re: THe NAC Lots-O-Post Thread

Saw the video.

Looks like it pulls hard.

Good luck :thumbup:

 

[vetteboy]

Re: THe NAC Lots-O-Post Thread

Dude...after we got the throttle plate blockage thing solved ( :laugh: ) it was downright scary and deafening to be near this on the dyno. I've never seen a motor with such snappy midrange throttle response. The variable timing and lift for all 4 camshafts works magically.

Even the few of us who thought we were 'badass' and turned down ear protection were cowering in fear at 7k RPM.

 

[MoparManiac]

Re: THe NAC Lots-O-Post Thread

Sick. Make sure you guys get good video.

EDIT: And I saw the throttle blade blockage issue, glad it was an easy fix. I lucked out on my adapter setup that everything cleared due to how gradual the slope from throttle body to manifold was. Any thinner on the adapter and I would have had issues with the front throttle body blades.

 

[vetteboy]

Re: THe NAC Lots-O-Post Thread

It was frustrating to say the least, although the fact that we had no idea we were operating at 25% throttle up til then says a lot about that motor too...

Problem was it'd trip into failsafe mode and basically run on one cylinder until we completely killed power and restarted it. Finally once we were on the dyno and able to repeat it a few times, we thought to just let it die and use the code scanner before trying to run it again...it popped a P2112 code which was 'TAC system stuck closed' so we pulled the air cleaner off and watched the butterfly operation and sure enough, it was getting all confused and shutting itself down to avoid a repeat of the Prius episodes.

Overall though I've been way more impressed with this engine package out of the box than any of the LS stuff I've seen...and after about 6 hours last saturday we got all the accessory brackets worked out to use a TC pump and 1-wire alternator with a halfway to common double-ribbed serpentine belt (any of the Volvo inline-5s, S60-S80, XC70, V40, V70, etc). Timmay's also got the ear of Ford Motorsports on this one...if this thing works as well as we think it will, LII's in a good spot to start promoting this motor as a viable platform for this racing stuff.

between my project and this one, I can't wait to see how long it takes til I start taking shit for my screen name :laugh:

 

[MoparManiac]

Re: THe NAC Lots-O-Post Thread

What are the advantages over an LS motor?

I'm guessing more people use the LS motor because of aftermarket availability/price.

I can't imagine that engine (being a crate engine) was that cheap?

Though I doubt the majority of the U4 guys are using JY engines.

 

[asp]

Re: THe NAC Lots-O-Post Thread

SHO engines kick so much ass. The 4k rpm change when the secondaries open is unreal.

 

[squashman702]

Re: THe NAC Lots-O-Post Thread

SHO engines kick so much ass. The 4k rpm change when the secondaries open is unreal.

Ford VTAK?

 

[vetteboy]

Re: THe NAC Lots-O-Post Thread

What are the advantages over an LS motor?

I'm guessing more people use the LS motor because of aftermarket availability/price.

I can't imagine that engine (being a crate engine) was that cheap?

Though I doubt the majority of the U4 guys are using JY engines.

Pretty much...up til this point there just hasn't been an alternative.

You could probably be in this for $6-7k as a drop in, turnkey motor with a 2-year warranty and complete motors in stock at any Ford Motorsports dealership. Power, ground, mount your gas pedal, hit start & go. And the tunability compared to a single-camshaft pushrod LS is sooo much better.

Granted you can get a junkyard 6.0 out of some chevy truck for ~$1500, then dick around with making a harness for it, sourcing a gas pedal, finding a car intake, getting the computer flashed & tuned, and be at the same spot with a 70k mile motor...just a matter of where you want to spend your time and money I guess. The initial purchase is only half the equation...from what I've seen, it's gonna be a lot more economical to make more power from the Coyote without having to do any internal work compared to the LS platform.

All I know is even with a stock tune, the throttle response and idle are better than any LS-based motor I've ever seen. Guess we'll find out in a few days.

 

[MoparManiac]

Re: THe NAC Lots-O-Post Thread

Pretty much...up til this point there just hasn't been an alternative.

You could probably be in this for $6-7k as a drop in, turnkey motor with a 2-year warranty and complete motors in stock at any Ford Motorsports dealership. Power, ground, mount your gas pedal, hit start & go. And the tunability compared to a single-camshaft pushrod LS is sooo much better.

Granted you can get a junkyard 6.0 out of some chevy truck for ~$1500, then dick around with making a harness for it, sourcing a gas pedal, finding a car intake, getting the computer flashed & tuned, and be at the same spot with a 70k mile motor...just a matter of where you want to spend your time and money I guess. The initial purchase is only half the equation...from what I've seen, it's gonna be a lot more economical to make more power from the Coyote without having to do any internal work compared to the LS platform.

All I know is even with a stock tune, the throttle response and idle are better than any LS-based motor I've ever seen. Guess we'll find out in a few days.

Makes sense. Does the Ford ECU come with some kind of tuning software already? Or is it just easy to tap into?

Sounds like it should work well if it holds up. I saw some article on it awhile back, definitely looked like a feat of engineering.

Anthony, he's talking about the 5.0 coyote motor, not the SHO motor, if that's what you were thinking. And Timmys U4 car, not his YJ abortion

 

[asp]

Re: THe NAC Lots-O-Post Thread

Ford VTAK?

I think VTEC is just variable valve timing. The SHO engine has a whole second set of intake ports that stays closed at low rpm.

Oh, I will have to look into that motor. I've never heard of it. Sounds neat tho.

I was going to say, I didn't think the YJ shmsmortion was that far along.

shmshmortion... far along... ha...

 

[vetteboy]

Re: THe NAC Lots-O-Post Thread

Makes sense. Does the Ford ECU come with some kind of tuning software already? Or is it just easy to tap into?

Actually it's miserable to tap into...the Ford Motorsports standalone ECU doesn't let you do anything, even with the proper tuning software. And we found out the hard way that if you try and load a Mustang tune into it, it doesn't even let you get power to the starter. :laugh:

We're working on it though, the tuner paid for a key to unlock the ECU and the company gave him a bum password, so once that's straightened out it should be a lot easier to work with.

The computer in stock tune is capable of some pretty badass stuff though...in this article they got over 700 HP with the stock ECU and a bolt-on supercharger.

One thing that we're gonna be looking hard at is oil pressure...this ****er pumps over 100 psi at idle because it uses the oil pressure to regulate valve lift. There's an accumulator with a few quart capacity but I'm not sure what it needs to be charged to in order to be effective on this motor...

 

[MoparManiac]

Re: THe NAC Lots-O-Post Thread

That's pretty awesome.

 

[vetteboy]

Re: THe NAC Lots-O-Post Thread

MoparManiac and vetteboy agreeing that a Ford product is badass.

Satan just called, he said the heat's busted.

:laugh: