Thanks for the insight.
I'll be sure to make sure it's accessible....
I'm going to assume that Forced Performance has engineered this part not to be a problem. The specific type of turbo that I'm using is mostly used in max-effort drag cars, and I've never heard of failure. Precision on the other hand.....
You'd be surprised at how many details small design houses miss...
That said, the compressor distortion thing I mentioned is an installation controlled issue - doesn't have anything to do with the turbo design itself. (Compressor distortion is the change in pressure across the face of the compressor wheel, sharp turn before compressor = area of low pressure on one side, area of higher pressure on the other).
I'm sure the turbo will be just fine, it's just interesting to me that two companies arrived at such different designs in a critical area for maximum stress. Just the stress analyst in me puzzling what drove them down such different paths.
Such a crazy build to read through and then to see in person. The attention to detail is phenomenal!!! Can't wait to see the next bit of progress!
Thanks!
There's not much going on this week with the car. I tore apart the shop today; changing the layout and getting rid of more stuff that I don't use much.
My parts cleaner for example is just a surface to stack things on since I stopped messing with automatic transmissions...
I've also convinced myself I need less shelving, and better control of what goes on them.
The bench on the end is now gone....it just attracted piles of stuff.....and I've now got a wall of shelves.
I'm also getting rid of one of my stainless topped work benches....same problem as above.
The irony to all of this is that once I get the shop cleaned up, I'm going to move the car back inside to start gutting it...and there will be parts everywhere again! At least I can plan the storage for that now....
So, it definitely seems like you have plenty of knowledge or at least some very good theory...
But, I’m ignorant. What is the main cause for this? Just peak compressor wheel RPM?
To Adam:
Kicking butt like you have been since I first joined the forum and read your whole nitrous build!
I can see what you mean about injector angle once you explained it.
I get a little carried away sometimes....
https://youtu.be/XMICcW-DOU4
1000+RWHP, Lab22 Built Turbo S54 - BMW Half Mile Record Holder
I have started a new thread to detail the next round of major revisions to the 330i:
https://www.bimmerforums.com/forum/s...g-Race-Project
Since this is more relevant to this thread- When you began, and tore the engine down for the first time- Where did you get the turbo piping from the first time around? I'm considering turbo options, and I'd love to find bottom mount options. I'm looking for downpipe/ intercooler pipings.
Keep it simple: half gutted '01 330i, welded diff, BC coils, SLR Super kit
Now that you're much more experienced in the ways of turbocharging an m54, are you still happy you originally went that route? Their kit seems expensive compared to what I could piece together/ get from RK tunes. But I'm having trouble figuring out how to piece together a bottom mount kit.
On the other hand.. any chance you still have/ are looking to sell that kit sans turbo and tuning?
Keep it simple: half gutted '01 330i, welded diff, BC coils, SLR Super kit
I'd buy it again in a heartbeat.
It's well thought out, the components are good quality, and Nick's support of my various non-standard requests were stellar.
There are limits that you need to decide on up front. It's a flawless 300rwhp kit standard, and you can make over 350rwhp on the stage 2. (Head studs, and thicker gasket)
There is one big exception: I don't know if Nick sells the kit anymore. I haven't seen any new owners in quite some time....
If you are looking for between 400 and 500hp, you would need to look at a different turbo and injector option. (As well as a tune) I've never looked at what RK tunes is offering, but I have spoke to him on the phone one time, and he was extremely knowledgeable.
I've sold 80% of the kit components, all that remains is the charge pipe work. Technically, I have everything from the turbo inlet to the throttle body, along with couplers and clamps. If you are interested in buying this, please PM me. I'll be back in Canada in 2 weeks and can produce images of everything at that time.
Hey where did you get your all your parts from
Sorry to go back in time on this but when you rebuilt the auto yourself and used the upgraded friction discs and more line pressure did it hold the 15 psi?
No, it did not.
If I were to do it again, I would probably have put the $$ into a TH400 conversion.
- - - Updated - - -
Why do I bother....
I've been burned so many times by people that are "serious", that I feel like a fool for responding. There's always hope that the next guy might actually DO something though...
14 years later, I'm still here doing it.
1989 535i - sold
1999 M3 Tiag/Dove - sold
1998 M3 Turbo Arctic/black - current
2004 Built motor TiAg/Black - Sold
2008 E61 19T Turbo-Wagon - current
2011 E82 135i - S85 Swap - current
1998 M3 Cosmos S54 swapped Sedan - current
1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53
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