Ti-Al DR-950s

**TurboSinceBirth** · 01-23-2013, 08:47 PM

I bought a set of these DR billet titanium aluminide 16Gs aka DR-950s because I wanted a badass setup on a 3.5L. These turbos were purchased off Pensky3Thousand from this thread: 3000GT/Stealth International Message Center.

They have 750 miles on them. One turbo had some weld slag from the crappy 3SX TD05 headers come out which bent the shaft. I'm not sure that the Ti-Al turbine shaft/wheel combo will be available anymore. Matt gave me an estimate for a one-off but lets just say that even as a favor you wouldn't want the outrageous price to be upheld. Lol. The rebuild option is a standard TD05H turbine wheel with a new billet compressor wheel, new internals, balance, etc for $895.

Like me you may be disappointed that the cost of the Ti-Al rebuild isn't justifiable and settling on the 12 blade cast TD05H turbine wheel running in any MHI TD05 14b, 16g, E16G, 18G, 20G, etc isn't as nice from a performance standpoint. I took apart the bad turbo and measured the billet compressor wheel. It's an 18G in specs with some extended tips near the exducer which I don't know if 18Gs have. I assume not. You can pick up a balanced ready to go billet 18G CHRA for $470. A machined new compressor housing is another $100. I would also go with a 9 blade turbine wheel for better spool and more importantly a great deal more peak power flow for an extra $160. IMO that would give a badass turbo.

These 950s will give near DR-750 spool but can supply 150+AWHP more power which would be sweet on any 3.0L or 3.5L. It's perfect for someone that already has 16Gs. I will let them go for what I paid $1375 plus shipping.

Here's pics of the damaged turbo:

You can see it needs a complete rebuild because of the damage. The shaft is bent along with the wheels being damaged so it needs new bearings, maybe a bearing housing, and a full rebuild obviously which is why I recommend a new CHRA.

**familyMAN** · 01-24-2013, 12:30 AM

That comp wheel looks huge. Know the sizing on comp and turbine wheels?

**TurboSinceBirth** · 01-24-2013, 04:34 PM

Originally Posted by familyMAN

That comp wheel looks huge. Know the sizing on comp and turbine wheels?

The turbine wheel is the exact same size of a TD05H turbine, 56mm inducer and 49.2mm exducer. It's a much lighter wheel and shaft though which is where the spool/power advantage will come from. I suspect that the wheel and shaft are one piece which is why they both have to be replaced on the other bad turbo sitting currently at Matt's turbo shop. I took apart the compressor side and found out the compressor wheel is a billet 18G wheel in inducer/exducer specs. I'm not sure if a billet 18G has extended tips in the design. You can get a billet 18G CHRA with a 9 blade turbine for about $730. Ideally, that's probably what I would do.

**TurboSinceBirth** · 02-11-2013, 12:55 AM

**TurboSinceBirth** · 02-12-2013, 04:40 PM

It's $895 to rebuild the bad turbo with a new billet compressor wheel, stock TD05H wheel/turbine, new seals, rebalance, bearings, etc. I've seen cheap 16G external kits under $1k you could couple with these turbos.