BatMo S475

[Drholliday]

Just wanted to share my experience and see if many others are running chargers with the new BM wheel in it.

What I have found over the cast 475 is spool up is noticeably faster. With the cast I had to build up to 10 lbs then it would shoot up to max boost. With the BMW once you hit 2 lbs you can roll it to the floor quickly and the boost follows.

There is a lot less turbo noise even though it is putting out more boost. And my max boost on my highest tune went up 5-10 psi. Figured it should really test the strength of my stock head bolts :woott:

On the highway going 65-70 there is almost no lag with the BMW. The cast wheel had a couple seconds of lag at those speeds.

The other weird thing is I've been WOT and let completely out of the throttle a couple times now and haven't had this charger bark. The cast set up would back if I had anything over 15 lbs and lifted. I've done it with the BMW at 50lbs and no bark.

No real increase in power by the butt dyno, though I'm fuel limiting myself since I'm still on a stock bottom end. Spool up is very noticeable though. My wife has been driving it to work and in her professional opinion it is 'less scary' to drive

I'll be testing it towing 10k lbs through the Rockies next month when my wife and I move to Portland. So far I love everything except the decline in turbo whistle.

 

[Evan@InglewoodTrans]

I love mine but I have to say atleast in my case going from the 464 to the 374 the 374 sounds great and is alot louder especially when spooled I couldn't be happier with the way it drives , spools and sounds.

 

[jmaz268]

hmmm sounds like a very nice upgrade vs a normal billet wheel too.

 

[ChevyDieselLLY]

Glad you like it Chris

 

[bullfrogjohnson]

I'm assuming this is a 83mm turbine? What size housing?

 

[Drholliday]

I'm assuming this is a 83mm turbine? What size housing?

Correct, 83mm turbine .9 a/r. With the cast wheel and same turbine set up I would need 2200 rpms to have it take off, now it seems to be around 1800 rpms. Just need to drive it more to get a feel for it.

 

[seth999]

I'm thinking about trying one out...glad to see you like it and it seems to be a good setup

 

[JD4440]

I was wondering myself how that wheel would do on a 475

 

[SDP]

They sure do live up to the hype!

Here is a picture of an 83mm BMW next to the standard billet wheel, you can see how they raise the fins to get more surface area both the inducer and exducer. They also made some changes to reduce weight in areas.

 

[Dirtymaxx03]

that thing just looks badass

 

[jmaz268]

That does look sick Scott.

 

[maine04max]

kind of a bummer you cant just buy a bat mo wheel and not have to get a whole new turbo

 

[jmaz268]

kind of a bummer you cant just buy a bat mo wheel and not have to get a whole new turbo

I def agree...

But from what I understood, they just need your turbo to do one...Maybe I misunderstood.

 

[JD4440]

so you have to order the whole thing huh ? Bummer

 

[seth999]

I've heard there are some billet wheels out there already with more surface area then the batmo...what exactly does it do to the air flow to cause these differences just more area, the humps, ?

 

[maine04max]

Anyone know how many manufacturers make billet wheels and who they are?

 

[CurtisEmery]

They sure do live up to the hype!

Here is a picture of an 83mm BMW next to the standard billet wheel, you can see how they raise the fins to get more surface area both the inducer and exducer. They also made some changes to reduce weight in areas.

Looks like a much taller tip height on the exducer. Seems to be raked forward more than the standard wheel.

 

[CurtisEmery]

Anyone know how many manufacturers make billet wheels and who they are?

Garrett, borgwarner, KKK, holset, columbus diesel supply, harts diesel, precision turbo and engine, turbonetics, bullseye power, forced inductions I think engineered diesel has been working on one as well. I'm sure there are more.

 

[DMAXchris]

They sure do live up to the hype!

Here is a picture of an 83mm BMW next to the standard billet wheel, you can see how they raise the fins to get more surface area both the inducer and exducer. They also made some changes to reduce weight in areas.

That BatMo looks way different!
Is that thing headed to western PA by any chance?

 

[Rhall]

They sure do live up to the hype!

Here is a picture of an 83mm BMW next to the standard billet wheel, you can see how they raise the fins to get more surface area both the inducer and exducer. They also made some changes to reduce weight in areas.

What hype do they live up too? So far i havent seen any data showing that they are better than the standard billet. Maybe ive missed it? Everybody ive seen doing comparisons has been comparing the cast wheel. The only hype i have seen is winning the "big florida race" yet it was not the fastest truck there, nor the second, nor the 3rd, some people just had some bad luck.