junkyard turbo's

[Swamp Donkey]

Anybody out there running with out a wastegate. I built a manifold and used a t3 off a lebaron. Tossed chryslers waste gate housing. and cut a plate to fit for now. Very happy with the results and can't see the need for a waste gate.

Just tune max boost with the fuel screw. 15psi pulls hard with no lag.

 

[lowenbrau]

Shaker ran from Calgary to Rubithon and back on 38's pushing something like 17 PSI. Same engine (freshly rebuilt) same turbo and blocked wastegate. I think you'll drop a precup doing that eventially. That's a lot of air to push through a tiny hole but you're not the first one to do it successfully.

 

[brownbear]

I think you'll drop a precup doing that eventially. That's a lot of air to push through a tiny hole but you're not the first one to do it successfully.

Read fawked engine.


Also what kind of egts do you get?

Yah the amount of air you can push is a direct measurement of the amount of fuel burnt.

But if you limit the boost at say 12 psi(with a wastegate), for more safety on the engine. You can then dial up the fuel to max out the EGT's under load. So you will get more power, or lets say put less pressure in the pre cup.

Limiting the boost with a wastegate allows you to use more fuel for extra power too.

Controlling the boost with fuel will have it's power limits.

If you dial the boost down to max of 10-12( IMOP safer number, based on nothing scientific) how is your power? I bet not as quick as 10-12 psi and utilizing the fuel more( as in max 1250f under full open throttle on a hill).


I am pro wastegate. But if your happy with 10-12 psi with the fuel screw, excellent. Probably runs nice and cool.

With out a wastegate, if you dialed the fuel to the pyro hitting 1250f, I bet the boost is really high, maybe 20 or so...... I can't see long engine life that way. Also the extra heat from the high boost would start getting scorching.

 

[Tapage]

I'm pushing 14 PSI on my 2H with my wastegate disconected right now .. ( I plan to connect it some day ! )

 

[Swamp Donkey]

To start with i cranked the fuel right up. so egt's were 1300, about 22 psi boost a little high for the little guy I figured . Now @ 16psi Egt's @1100degrees

I have been looking online for a t3 wastegate housing. only found expensive junk.

Any one used the mitsubishi turbo off the later chryslers, it looks quite a bit smaller. Came accross a half dozen the other day

Need to find common parts (no rare expensive stuff) as I have 2 other cruisers in need of turbo's

Also planning on intercooling before summer, surfed a couple junkyards, but seems to be one of the first things to disapear.

Find lots on ebay, not sure on quality??

 

[brownbear]

Yah you need to call a junkyard and arrange that they call you when a certain type of car come in. That way you can grab it.

Most of the problems thou is front end hits usually scrape them. Need to find a t-boned car.

 

[79fj40moneypit]

I found this info on a mitibushi turbo 2.3 lit. TURBO number TC05-10A this turbo has the same flange as the 3b exhaust manifold
rpm x engine size= lit/minute
3b engine max rpm is 4100x 3.4=13940
2.3 lit gasoline engine that max rpm is 6400 x 2.2=14080

This guy is running this on a 3b he says with good results.

 

[Tapage]

To start with i cranked the fuel right up. so egt's were 1300, about 22 psi boost a little high for the little guy I figured

damn dude .. you are my hero !

I thought mure than 14 PSI require a nice intercooler setup ..

 

[Swamp Donkey]

I am planning on intercooling. One piece at a time When i was boosting 20psi+ it was -20C outside, might help??

Anybody had good luck with intercooling in a 60?? EGT'S?? Performance?? What cooler??

 

[cody c]

brownbear, your max psi seems a little conservative. i havent had enough oppurtunity to get mine dialed in and the bugs worked out, (been out of canada since august). Not that im trying to contradict you i have no first hand experience with how far you can crank the psi on a 3B before you drop a precup, im just wondering who has dropped on if anyone has found where too much psi becomes a problem, also does anyone know what do the 3bt or 13b-t engines go to in psi before they open.

In hindsight i would have waited till i found a merkur turbo with wastegate but not easy to find.

 

[Tapage]

I am planning on intercooling. One piece at a time When i was boosting 20psi+ it was -20C outside, might help??

Believe the hot aire result from havy compresion need to be cooled anycase ..

Anybody had good luck with intercooling in a 60?? EGT'S?? Performance?? What cooler??

I do all in one step so I don't know if without intercooler make huge diference in performance of EGT ..

 

[brownbear]

brownbear, your max psi seems a little conservative. i havent had enough oppurtunity to get mine dialed in and the bugs worked out, (been out of canada since august). Not that im trying to contradict you i have no first hand experience with how far you can crank the psi on a 3B before you drop a precup, im just wondering who has dropped on if anyone has found where too much psi becomes a problem, also does anyone know what do the 3bt or 13b-t engines go to in psi before they open.

In hindsight i would have waited till i found a merkur turbo with wastegate but not easy to find.

Cody, I think it is around 6-7 psi on the 13b-t.....really low. Some guys have put gauges in there BJ74's...

I don't think any of the Toyotas are more than 12......

really I don't know how much is too much.... I dunno. It's all a matter risk. If you want to go more, go more.....

What kinda PSI did you knock off with out a wastegate? Did you read my post above about wastegates?

I think it should be easy enough to find one. I still had to mod the factory one.

Maybe I will head thru yyc one day and we can compare. It's kinda a guessing game with junkyard turbos...there is no right and wrong. More if it works and is reliable....it's ok. Yah a mapped 1200 to 1600 dollar turbo is the cats ass but my turbo only cost 200 bucks. So if it gives more driveabilty I will be happy.

 

[cody c]

Brownbear, my parents live in smithers so the next time im up that way ill give ya a shout and bring the cruiser by and we can get an idea of the difference of our different but similar setups.

also i thought the diesels ran a little higher psi, i plan on using my cruiser for more off road use than travel and DD, so i am willing to compromise durability for power a bit more. But now that i remember you are not wanting to beat the crap out of yours and enjoy the logevity of it i understand why you are more conservative about max boost. I suppose only time will tell how long the 3B will take higher boost.

 

[cody c]

tapage, where did you get the intercooler?

 

[Tapage]

tapage, where did you get the intercooler?

From a Kia sportage ( same size as you found in Hyundai Terracan ) I try woth other one more bigger but get much turbo lag .. so I decide with this one ..