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Discussion Starter · #1 ·
I came across a deal I couldn't pass up for an HX40W(I bought a pig for a pig roast, and he gave me the turbo)... I have a downpipe on the way, but I heard the flanges are different at the exhaust manifold... So what's the deal??? Do they make an adapter, will it fit the stock one, or will I need a new manifold??? Thanks in advance...
I also have a 4gsk, mack plug, and an AirDog 150 waiting to go on the truck... I'll also be ordering a converter within the next week or so...:hyper:
 

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I'm pretty sure the hx40 is a T3 flange same as stock. If not there are adapters, ebay has a lot.

Don't bark that turbo. They use the same shaft diameter as the hx35 but the larger wheels put extra stress on them, and they don't hold up well.

I hope you didn't pay much for that turbo because they aren't worth much more than $700 brand new. Holeset uses an old style design that spools poorly, and they usually only wastegate the back three cylinders. And the hx40s often have overly large exhaust housing sizes
 

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i ran a super 40, which is a worked over hx40 with a 16cm housing, and i liked it, but knowing the shafts snap, made me nervous..if i were you, id send it in, get it cleaned up and worked over and sell it...
 

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Discussion Starter · #4 ·
It's new and I only paid $175(Plus $100 for the DP)... If it breaks it breaks, I'll give it a shot, I'm trying to not go crazy spending money, but this is going to make me want an even bigger turbo... Maybe I'll just buy a blow off valve...Hehehe...
My buddy was going to use the HX40 on his truck, but we found some huge turbo for $250 that takes 15-20 seconds to spool up...lol... His is mainly a pulling truck that only gets driven on the street when we're bored... Here's a video of him pulling, he pretty much just floors it and the sled starts to move while the turbo gets spooling... We like using weird stuff that we get for cheap or have laying around... We cut the stock flange off his exhaust manifold, and made a new one for his new turbo with some plate steel, a torch and a welder... Look at the video, it seems to work pretty good...

Video of John - Photobucket - Video and Image Hosting
 

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I guess its worth it then

Your buddy should consider holding the brakes, rolling into it, and getting that turbo to spool before he starts pulling the sled. He'd get way more momentum
 

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Discussion Starter · #6 ·
That was the first pull with the new set up... It was a test and tune at Chestertown in Maryland... We weren't sure how the truck was going to react with all the changes, so he was taking it easy, and rolling into it... It ended up pulling 375 feet, but we haven't had a chance to pull again yet... Street truck night at "The Buck" is May 10th I believe, so I'll have some new video of an all out pass... Hopefully it pulls hard like it did... *Fingers Crossed*
 

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when you let off the the throttle to fast and boost pressure shoots back out the turbo inlet (the wrong way) and it makes a sounds thats called a bark. Its very hard on your turbo shaft
 
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