3b diy turbo question
- Thread starter cruiserjunktion
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Tapage
Club 4X4 Panamá
13bt manifold, ct26 parts...
SO... here's where I'm at with this so far:
The turbo I'd purchased was the wrong one (from a Supra, not an MR2) but I think I may be able to use the housing with the correct turbo. I have one ordered and will post some pictures when it shows. Any reccomendations for shops/online retailers that sell oil lines?
SO... here's where I'm at with this so far:
The turbo I'd purchased was the wrong one (from a Supra, not an MR2) but I think I may be able to use the housing with the correct turbo. I have one ordered and will post some pictures when it shows. Any reccomendations for shops/online retailers that sell oil lines?
- Thread starter
- #85
Bj60+fj62+turbo= Bjt62 - IH8MUD.com Forum
I got the manifold today.....
I should be installing the turbo very soon.
I got the manifold today.....
I should be installing the turbo very soon.
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- Thread starter
- #86
Today, the ct26 manifold to t3 turbo adapter showed up.
I also ordered a oil supply and return line for the Benz turbo.
I now have everything to turbo the 3b.
I also ordered a oil supply and return line for the Benz turbo.
I now have everything to turbo the 3b.
IMHO this is the best way to DIY a 3B turbo. 3bt manifold, and adapter to a T3. There are plenty of T3's with a .42/.48 which seems to be the generally accepted ratio's for the 3B.
http://www.gamesbbs.com/~turbosi/junkyard_turbo_list.html
I'm also going with a custom 2 1/2 or 3" exhaust to get the pipe inside the frame rails.
I'll post my build in the next month or so.
http://www.gamesbbs.com/~turbosi/junkyard_turbo_list.html
I'm also going with a custom 2 1/2 or 3" exhaust to get the pipe inside the frame rails.
I'll post my build in the next month or so.
- Thread starter
- #88
more pics
I am adding ac and a turbo at the same time.
I had to relocate the oil pressure sender for ac bracket.
I used a t off the second hole in the oil galley for the sending unit and the turbo oil feed.
The turbo had to be disassembled to position it toward the intake.
The oil pan has a bug welded in for the turbo oil return line.
I am adding ac and a turbo at the same time.
I had to relocate the oil pressure sender for ac bracket.
I used a t off the second hole in the oil galley for the sending unit and the turbo oil feed.
The turbo had to be disassembled to position it toward the intake.
The oil pan has a bug welded in for the turbo oil return line.
- Thread starter
- #89
more pics
- Thread starter
- #90
I used the oem rubber intake hose, a piece of 2.5" pipe and a schedule 40 pvc elbo to plumb the turbo.
I haven't given up on the inter cooler, but am going to baseline the rig without one.
The oil feed line is a little long, but other than that, I am happy so far with the conversion.
I still need to clamp it all together.
I am sending the truck off to the exhaust shop later this week for a new 2.5" complete system.
I haven't given up on the inter cooler, but am going to baseline the rig without one.
The oil feed line is a little long, but other than that, I am happy so far with the conversion.
I still need to clamp it all together.
I am sending the truck off to the exhaust shop later this week for a new 2.5" complete system.
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I tried the flipped manifold, with a td04 off a d-50 lasted about 8hours. D-50's had 2 different turbos I beleive the older ones had the larger tc05. The td04 really seemed to choke out around 2400rpm. Excellent bottom end boost and response.
To know how suitable a turbo really is requires an exhaust manifold pressure gauge as well as a boost gauge.
2:1 backpressure to boost is fine, I tried a small turbo to see how it went, exhaust pressures went to 4:1 (60psi manifold for 15psi boost).
Tapage
Club 4X4 Panamá
It means 30 PSI at manifold for 15 PSI of boost . ? ( thought the best spot . ? )
I can reach 1:1 with my current setup, it only gets there when the exhaust reaches 650 deg C preturbo. 20psi backpressure for 20psi boost.
It hits 2:1 under transient conditions, is roughly 1.5:1 at cruise and drops as load increases and exhaust temps climb.
Tapage
Club 4X4 Panamá
1. I need more gauges ..
2. Did you have a pic of your exhaust manifold presure sender
3. Which it's the best rate or target to reach . ? 1.5:1 . ?
My setup is pretty basic. Drilled and tapped into the exhaust manifold opposite to my EGT probe. Fitted a short steel section to that (brass softens and loosens at exhaust temps) then into a brass/copper oil pressure line that's about 1.5m long.
Then to flexible rubber hose to a pressure gauge in the cab.
The length of the line dampens out most of the needle chatter, but I need to put a small restrictor in one of the fittings to take out the last bit of rattle.
It's a compromise as smaller turbos will give higher exhaust manifold pressure but help drivability. Larger turbos will give lower pressures but you lose boost at low rpm's.
I was surprised to see 1:1 from the turbo I am running, I thought it was too small for that, especially with a 2 1/4" exhaust.
I think anything under 2:1 is fine. Over that there's something wrong.
So ebay parts , and would it work ?
13BT Manifold>>>insert here
You get the drift >>
13BT Manifold>>>insert here
You get the drift >>
That adapter might work but i'd be worried about how high it'd put your turbo up. I think you'd be better off with this one...
Ok with that flange I can make the Ebay Cheapy work ?
if it's a t3. yes. I thought about an ebay cheapy t3 but in the end I couldn't bring myself to spend the $ on a chinese turbo. I figured in the end a good used garrett or rebuilt one was safer. JMHO. I went to the yard pulled mine and rebuilt it.
Check out spooledmotorsports.com as a alternative to ebay.
Check out spooledmotorsports.com as a alternative to ebay.
