Twin Charged 4BT, Eaton M122, HE341VE

I had a lot of help getting different pieces made, Cobra Engineering made my adapter plate to bolt to the M122, Strong Weld helped me with the bracket and Rapid Chimp Performance helped me build the charged ducting from the intercooler and the angled box from the adapter plate to my engine.

Pretty cool how it turned out, a few months ago it was all MDF board with a few changes along the way.

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This is a comparison of the M122 and the 4BT head gasket

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Very cool, man. :)

Dunno if you've got the room, but it may not hurt to bump up your inlet piping and filter size. Depending on how fast you're turning it it's going to make that engine seem a lot bigger than it is, and unlike a turbo it's going to be doing it all the time.

My AFE BHAF looks like hell after only a month or so of running, it never got bad this fast with just the turbo.
 
Its a beast!!

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Idles right around 5-7 PSI

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revving the motor up it'll hit 30 PSI

I had to rotate the belt tensioner to make it work, the supercharger is slipping pretty bad and squeals just as much.

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How much belt wrap do you guys think it should have?
 
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I modified the tensioner after the video because the belt is rubbing, now it squeals.

The video is the supercharger only, I have my turbo in the open position so it cant build boost.

[ame="http://www.youtube.com/watch?v=-wx87Li2zXE"]http://www.youtube.com/watch?v=-wx87Li2zXE[/ame]
 
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Mine had ~ 180* wrap but had ALOT of tension. new tensioner was ~ 1/4" from maxed out
No slippage

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I added a idler so I got a better wrap around the pulley. It's still squealing and slipping on the supercharger, not sure if I want to try a tighter belt or get a fixed tensioner.

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What kind of pulley is on it? Is it factory? You may have to get a aftermarket one that has the Non-slip grooves in it or modify your current pulley.

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it looks like you can also get another idler under the snout to pick up another few degrees of wrap.
goodyear gatorback belts also help too.
 
You aren't supposed to use manual tensioners on serpentine belts, we discussed it in the other thread. Somehow, the serpentines don't squeeze into their pulleys like a V-belt does and it makes weird harmonics that the spring tensioner is made to dampen. I think a solid tensioner just destroys the belts.

Is it a constant squeal or more of a chirp? My belt wasn't tracking perfectly straight and it would chirp everytime the part number rolled over the idler. It was a slicker part of the belt and it would jump back in track as it passed over.
 
I know this may not be the best solution....

But to increase your crank pulley diameter along with the blower pulley diameter would allow for more grip and maintain the same blower ratio (increased surface area with the same amount of 'wrap')
 
The amount of boost that SC is seeing is causing a large load on the belt, this causes the slipping. wrap is as best you can (I re-route the belt to get a better grip on the crank too) and be sure your tensioner is close to the slack side of the crank pulley. If its on the pull side, it wont work well.
 
If he was making 30psi on the blower on his test drive, I can't imagine he's having pulley slippage at idle. He'd have piles of belt rubber all over the place after that drive if that was the case, and I can't imagine he'd have the grip to make those #'s if it was slipping at 5psi at idle.
 
92dak_r6 said:
What kind of pulley is on it? Is it factory? You may have to get a aftermarket one that has the Non-slip grooves in it or modify your current pulley. QUOTE]
The pulley is 2.59” I don’t know who made it, it came with the supercharger when I got it. I am thinking of getting a bigger pulley so I wont be pushing us much air
Click to expand...
 
Got the hood cut up, looks pretty awesome with the supercharger sticking out.

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