3b diy turbo question

[cruiserjunktion]

more home turbo pics

 

[cruiserjunktion]

Mercedes Exhaust-



NOT USING

 

[Indian]

I would not use that down pipe ,think it's too small and you will have to replace it down the line when you go with a 2.5" exhaust. and you want to do with a 2.5
I am running the exact turbo on my 3BII, great match you'll be happy with the end results

 

[mac]

btw. My turbo is oil AND water. I think it's better.

Well aren't you special...
Oil cooled is sufficient and simpler to install. These are fantastic turbos and often last the life of the engine. If you know the Mercedes 617 that is a very long time.

 

[Indian]

built the same setup last year, the turbo was out of an 83 Merc 300d.
boost is at 10-10.5

 

[Indian]

some more

 

[cruiserjunktion]

I would not use that down pipe ,think it's too small and you will have to replace it down the line when you go with a 2.5" exhaust. and you want to do with a 2.5
I am running the exact turbo on my 3BII, great match you'll be happy with the end results

The 85 86 Mercedes 300 Garrett 310 features a 2.5" down pipe. (what i have)

The pre 84 has a Garrett 301 which features a 2" down pipe.

 

[cruiserjunktion]

built the same setup last year, the turbo was out of an 83 Merc 300d.
boost is at 10-10.5

What kind of manifold is that you have?

Did you make it?

 

[Indian]

2.5 you're right on the money,
the manifold is a backward homebrew, I decided to make my because I'm running a 3BII so the 13BT manifold wouldn't bolt up to it,the bolt pattern is different. I'd have to make the turbo flange adapter and another for the head to fit the 13BT manifold.
It's not that hard if you have some basic tools and some patience
-1/2 plate for the flanges
-s/40 1 3/4" straight pipe
-s/40 1 3/4" x4 90 degree weld ons
-one weld on pyro bung
-$50 off machineing
-$80 on ceramic coating

and you can position the turbo where you like all at the fraction of the cost of a a 13BT man.

 

[Tapage]

nice flange dude ..

 

[bigbrowndog]

2.5 you're right on the money,
the manifold is a backward homebrew, I decided to make my because I'm running a 3BII so the 13BT manifold wouldn't bolt up to it,the bolt pattern is different. I'd have to make the turbo flange adapter and another for the head to fit the 13BT manifold.
It's not that hard if you have some basic tools and some patience
-1/2 plate for the flanges
-s/40 1 3/4" straight pipe
-s/40 1 3/4" x4 90 degree weld ons
-one weld on pyro bung
-$50 off machineing
-$80 on ceramic coating

and you can position the turbo where you like all at the fraction of the cost of a a 13BT man.

really nice work, top effort. , congrats

 

[tkorade]

D50/manifold flip

Has anyone done the D50/manifold flip turbo on the 3B and how was the performance and EGT? My 40 is used mostly low speed with very little high speed so a quick spin up at lower RPM would be my choice.

 

[attatoy]

good turbo just finished mine, three days later, now i just need to mess around with the fuel screw, i need a pic of which one it is.

7.5 psi, and it sounds great with a open down pipe, pretty quiet. I belive the stock manifold is fine, people have made log manifolds for years with turbos on one end, the pressure is all the same in the mani. it is hydrualic principal. any how i used the stock air inlet to put an air filter above the valve cover. , pyro is in the elbow, can some one post a pic of the fuel screw on a bj42 please?

 

[arnott1t]

D50 Turbo

Just finished some testing with my 81 BJ42 that has the D50 turbo. I also wound it up to see what max boost would be. I stopped pushing the gas at 18psi thought that was enough. We used a G-force meter to measure applied hp and did some 0-60 times. Pretty incredible results. Also installing a waterinjection kit. It isn't all its cracked up to be yet..... Here are the findings from our testing.

Stock 1981 Toyota land Cruiser

Tuned to achieve max EGT of 1000’F

HP Trials

Trial 1 77
Trial 2 82
Trial 3 77
Trial 4 86
Trial 5 82

Average HP is 82 HP.

0-60 mph times


Trial 1 20.65
Trial 2 20.62
Trial 3 20.67

Average 0-60 time is 20.65

Quarter mile would be achieved in 25.09 seconds at 61.2 mph according to G-tech gauge.

Average EGT while running at 100 km/hr is 730’F.



Turbo 1981 Toyota land Cruiser –No fuel adjustment

Not tuned to achieve max EGT of 1000’F, due to the fact the turbo allow higher EGTs and we have not adjusted the fuel.



HP Trials

Trial 1 83
Trial 2 96
Trial 3 96
Trial 4 86
Trial 5 97

Average HP is 91.6



0-60 mph times

Trial 1 18.58
Trial 2 18.89
Trial 3 18.92

Average 0-60 time is 18.80
Quarter mile would be achieved in 23.01 seconds at 64.4 mph according to G-tech gauge.

Average EGT while running constant at 100km/hr is 690.


Turbo 1981 Toyota land Cruiser – Fuel Adjustment

Tuned to achieve max EGT of 1000’F by adding extra fuel.

HP Trials

Trial 1 106
Trial 2 113
Trial 3 119
Trial 4 124
Trial 5 110

Average HP is 114.4




0-60 mph times

Trial 1 15.51
Trial 2 15.56
Trial 3 15.47

Average 0-60 time is 15.51

Quarter mile would be achieved in 20.29 seconds at 68.0 mph according to G-tech gauge.

Average EGT while running constant at 100km/hr is 720.

 

[cody c]

wow! good on ya for doin the test! looks like the gains are substantially better with the fuel adjust. its good to finally see someone do this test.

 

[attatoy]

still waiting on feul screw pic, it looks like the stopper for the edic arm, is this correct?

 

[Tapage]

114 HP in a 3B with 18 PSI ! damn ! how much I will get in my 2H with 14PSI .. ( I don't want to know ! )

 

[arnott1t]

those tests were all run at 11 or 12 psi. No more than that. I never wanted to go much higher than that. This is why there was no test for wide open boost. I was scared too.....

 

[Tapage]

those tests were all run at 11 or 12 psi. No more than that. I never wanted to go much higher than that. This is why there was no test for wide open boost. I was scared too.....

uff ! thaks .. I'm more happy now ..

 

[attatoy]

does know one have a rack screw pic? I have instaled the turbo, and the pyro and on hills i barly seee 600f , i have larger tires coming and need this tuned , hence the reason for instaling a turbo, i am also only running 7.5 psi.

Myles