DIY 335IX built motor/trans single turbo build
- Thread starter nyt
- Start date
Have you seen the comp triplex waterless and oil less turbos? I’m super curious about their durability and use cases for that exact reason.
No oil? Crazy, no haven't seen those. Gonna look now.
The 6466 g2s are pretty reliable. It should be good for about 900whp, but I'll be running it below that. This car is just a daily driver, not competing with it.
Looking at their website... Looks like they're using the compressor wheel for air cooling and they require a bit of service. Seems like rebuild at 50k miles. Super interesting. Seems like maintenance might be a little annoying unless top mounted, and not really a fan of that. I'm gonna ask around and see if anyone I know has experience with em. For a drag car that will never see anywhere near that kind of mileage, that seems like it might be a nice option. What's the pricing like for them? Their website is all call for pricing :/ Hate that.
Yeah but return line isn't really tricky for a bottom mount... It would just be tough to reach to grease I think. Either have to remove the bottom tray every 3k miles or possibly reach a grease fitting down the side of the engine. It might not be too bad reaching in from the top.
Finally got some time to work on the trans. Got the transfer case and valve body off. Will rebuild the valve body tomorrow and see how far I get with everything else on sunday.
Made some progress today. I installed a zip kit in the valve body, replaced the solenoids, and got all the guts out of the trans. I had a couple of the pump bolts strip out so had to weld another bolt to em to get it out.
Hopefully tomorrow I can work on getting some bushes replaced and some clutch packs swapped out.
Oh, and some fun bits from Nizpro
Hopefully tomorrow I can work on getting some bushes replaced and some clutch packs swapped out.
Oh, and some fun bits from Nizpro
Oh, also forgot to post some carnage from the last motor...
![iimg].png](https://www.spoolstreet.com/attachments/iimg-png.46919/ "iimg].png")
Made some progress today. I installed a zip kit in the valve body, replaced the solenoids, and got all the guts out of the trans. I had a couple of the pump bolts strip out so had to weld another bolt to em to get it out.
Hopefully tomorrow I can work on getting some bushes replaced and some clutch packs swapped out.
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Oh, and some fun bits from Nizpro
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I only did the mechatronic rebuild on mine. Made a huge difference! Easy to do.
That full rebuild you're doing looks sweet. Looks fairly straightforward as well.
The biggest expense was like 3-4k for the input and intermediate shafts from Nizpro. Then the clutches were like 1k.
It should hold plenty of power, not worried about it being an issue. The transfer case and the front diff, though... well, let's just say I'm not putting sticky tires on the car.
I have a fully built motor with ported head. Speedtech 6466 bottom mount. Full E85. 34psi on my 6MT 335xi E90. Everything held fine. But I didn't do any launches. But my car caught fire and now I am thinking about moving everything in a 2010 335 AT. But was wondering what the price of the AT built would be. Not sure if I want to spend more for the auto or just put the manual into it.
How much power were you making? I'd imagine around 750-775ish unless you had cams at that boost level? Anyway, the input shaft is a known weak point around 800. I think @Kenjermen snapped one on the dnyo
So I pulled and pressed all the bushings tonight, just need to get another couple input / output shaft bushes and figure out what I'm going to do with this PD input shaft. Next up is soft seals and clutches, but I'm waiting for the hard bits to be sorted before that.
I tried to go in order from front to back...
pump...
input shaft
Had to pull this one out since the shaft is out of spec.
PD clutch kit in Nizpro basket, 9 steels, 8 frictions, no top plate, no wavy plate.
clearance test...
all good..
I wanted to make sure the top steel wouldn't be able to slip at all since this is normally a much thicker top plate. I couldn't get it to budge.
a clutch basket
b clutch
a clutch hub
Couldn't get a grip on it, had to bang it out.
rear assembly / output shaft support. Didn't have the bushing to push in thanks to the Nizpro fuckery.
I tried to go in order from front to back...
pump...
input shaft
Had to pull this one out since the shaft is out of spec.
PD clutch kit in Nizpro basket, 9 steels, 8 frictions, no top plate, no wavy plate.
clearance test...
all good..
I wanted to make sure the top steel wouldn't be able to slip at all since this is normally a much thicker top plate. I couldn't get it to budge.
a clutch basket
b clutch
a clutch hub
Couldn't get a grip on it, had to bang it out.
rear assembly / output shaft support. Didn't have the bushing to push in thanks to the Nizpro fuckery.
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