So by now, most of us have heard about the Gen 2 WW. (If not, there is plenty of reading for you, just do a quick google search and pick a forum!)

My question is what are the concerns with this new wheel? I know of a couple, mostly related to boost PSI and drive pressure, but what all is there? Is drive pressure going to move up to the number 4 spot on recommended gauges? Turbo fatigue?

Thoughts? Supporting data?

 

No data. Hoping that the test teams can find if 43 psi is gona be too much pressure for a stocker. Are the intercooler connections gona hold or are alot of folks gona poop themselves when/if those blow off. Yea, I too wonder about turbo life.

 

Boots shouldn't be a problem. There are solutions for that because people already make 40+psi on a 7.3 I'm more concerned with the turbo itself I think

 

x2 i see the bearings failing fast, i dont see how 25psi stock will kill them but 43psi WW2 wont? there has to be a lot of back pressure. and more boost dose not mean more power.

 

I guess that's why we need more data. He reports the same back pressure but we all know how a dyno can be different than real world driving.

 

Well what is the speed of the turbo with the ww2? With the same turbin wheel I would think the exhaust gasses are turning it at about the same speed, so the compressor is that more efficient and producing twice the pressure?

 

You have to remember that this wheel was tested on a truck with larger injectors. With the stock wheel it was already making between 30-35PSI. That being said, for the new wheel to pick up an additional 6 or 7 psi definitely is in the realm of possibility from just an efficiency stand point. Also, back pressure to boost ratio should stay the same between the dyno and real world so this wheel lowering it to .92 or whatever bill has proven is a huge benefit. Same injectors, same tunes, etc I dont see how the turbo is being put under any more work.

Now is this going to replace the 38R? probably not. However, it does allow for a more efficient stock turbo, which in turn will allow more people to simply upgrade the wheel when they go to stage 1's or stage 2's and get the full potential out of the set up.

Even if it diminishes turbo life, I dont see it doing so much faster than normal, if faster at all. More efficient turbo = longer life. Doesnt matter what boost pressure you are running. Not to mention, how expensive is it to rebuild a stock turbo? Not bad. Therefore, you buy this wheel, and factor in at least 1 rebuild, and you are still at less than half the price of a 38R. IMO that is huge.

I still want to see some real world tests as far as how streetable it is, and how it works with stock injectors, but as far as I'm concerned this is a huge new product being brought to to the market. Makes sense though. The machining capability alone has gone through so much growth since these trucks were brand new that it was only a matter of time until someone developed a better wheel for the stock housing. I also think this will be a good option for those people that must smog their truck. Allows the stock turbo to still be installed, but allows you to clean up larger injectors, or stock injectors with hot tunes.

 

exactly.....same speed....more boost.....he did have 160 sticks though....and for guys pushing stock sticks bp isnt going to be an issue.......

 

Some guy on another site is posting some data up

Radically Redesigned Wicked Wheel® makes 43 PSI on my STOCK turbo! - Ford Diesel Power Forums

 

How the heck is he getting 35 psi boost on a stock wheel? Im getting 24-26 max with 160 singles and a dp tune of 120? I know Im at 5k altituded, but wow......

 

Check your wastegate, or you have boost leaks... I can hit 30psi in my 100 tune, and get pretty close to 33lbs in 140, and i have a wicked wheel.

 

Also have to remember that its Bill we're talking about and I bet hes had that truck on a dyno quite a few times and has the tuning really dialed in.

 

X2. Check for up-pipe leaks and build a boost leak detector:

I could get over 30psi with stock sticks and current '100' tune - and made 324HP on the rollers.

AC's with 38R would hit 35psi and made 370HP with a boost leak... Click pic for a recent video on the street where it easily snapped to over 30psi:



The gauge #'s aren't really visible in the video, but this is what the gauge looks like...

 

What about those of us who don't really get on it and aren't trying to make big power, but do tow. I have turbo surge and want to cure it, thought about the original ww but have debated back and forth. I don't look for big boost #s, only other plans are possibly 4" exhaust, frx, hpx, definitely up pipes in the near future. I know this wheel costs more, but if you are like me and don't really get on it, shouldn't the turbo hold up and the wheel in theory would cure the surge issue? What about sound? How does this new wheel sound when driving?

 

I would explore a 1.0 exhaust housing or van turbo to 'cure' surge before the WW...

There is no benefit of 4" exhaust over straight-piped or BTM'ed stock exhaust. With good tunes, I had no issue with EGT's even with stock muffler towing 12k lb Toy Hauler with the X. The MBRP 4" is just louder - inside and outside the cabin.

There is no measurable performance benefit to FRx or HPx. All reported 'improvements' are merely subjective. Those taking the koolaid will argue...

If this new wheel makes more boost (specifically - moves more AIR) without increasing backpressure or shortening turbo lifespan - then it is in fact a win-win. More air equals lower EGT's and in theory better MPG's.

The NOISE factor is a GREAT question. I hated the 38R so bad - I got rid of it.