so you want to increase your bottom end torque on your 3B?

[crushers]

the 2" slips over the existing nicely and clamp and you are completed with the exhaust. simple, easy, cheap.

this shows the location.

the water lines are temporary till the owner replaces them to his satisfaction. he had a 5 hour run home and other than a diaphram hose coming off and making for an interesting last half of the trip it seems it performed to his liking.

the high pressure, oil resistant cross over piping and the original elbow.

the inlet pipe from the 2LTE fits perfect for the inlet for the 3B to 2LTE turbo as well.

so all told, with the manifold, adapters, turbo etc the install was right around $1000.

cheap

 

[gerg]

Well that looks like a nice install Wayne. If you can sneak a temp probe in just at the turbo outlet and we can see how efficient it runs at what pressure. As long as you keep your boost below 10psi below 2700rpm it should last for quite a while.

 

[David*BJ70]

How so? Lots of guys build simple log manifolds from tube or weld elbows/tee's. Discontinued 13bt manifold is not a show stopper.

I have surf in some 40 serie forum from France and look like few french cruiserhead did so.

Here some pics :

 

[crushers]

we installed the threaded hole for the pyro just before the turbo so he should be able to get accurate readings.
we ran out of time and couldn't get the boost, pyro and oil pressure guage installed. he needed to get to work the next day.

thanks for the compliment but it was a super easy install, if you can change a set of tires you should be able to install one of these on a 3B.

Well that looks like a nice install Wayne. If you can sneak a temp probe in just at the turbo outlet and we can see how efficient it runs at what pressure. As long as you keep your boost below 10psi below 2700rpm it should last for quite a while.

 

[BC40]

Well that looks like a nice install Wayne.

x2. Good use of 2lte parts.

If you can sneak a temp probe in just at the turbo outlet and we can see how efficient it runs at what pressure. As long as you keep your boost below 10psi below 2700rpm it should last for quite a while.

I do remember a thread about the little dodge d-50 turbo and after doing some research I found that it is a tdo4-9B-4cm housing. If you want that kind of performance, go with that turbo. I personally feel it is too small on both sides. Compressor dosent flow enough and a 4cm housing will choke pretty early as well. I am putting a tdo4-13t-5cm housing and am thinking it too is a little too small of a housing even though my larger turbo will be doing most of the work above 2000rpm.

Not to hijack, but what are the symptoms of a turbo choking?

I also run a small turbo (an IHI rhb5) and know others with the d-50 turbo. Great driveability but not so good on the highway beyond ~2600 rpm with mine. Feels fine pulling through the gears accelerating though. Don't have my boost gauge hooked up, but never any worries from the pre-turbo EGT readings. Just want to know if I should be worried that failure of the small turbo is imminent

 

[gerg]

You could sneak a temp probe in just after the outlet from the turbo on the intake side to measure what the temp is of the compressed air and what the pressure is. This can be used to calculate your compressors effeciency percentage. On the turbine side you can measure EGT pre turbo as well as use a little trick Dougal told me about where he tapped the exhaust manifold and put in some steel or copper hard line for a few feet coiled up and then atach it to a pressure gauge to measure back pressure. The metal tubing allows the gas to cool so as not to melt the plastic tubing and your gauge. All this sounds elaborate, but is most likely easier than you think. It is a good way to get real data for tuning. Especially on the turbine side. As for how a turbo feels when it chokes out? Ive never felt it myself. I have read that power just drops off. I guess having your turbo explode is a dead give away as well. You could swap your small turbo out for a TD04L-13t-6cm commonly found on WRXs. Mainlander has this and it is a great low end match that does pull hard to 2700 then tapers off. It is physically the same size, just has diferent adaptors you would weld on to your manifold and down pipe. They run 150$ with low KMs on ebay for guys who upgrade to larger turbos . You can get the flanges and gaskets too. http://www.ebay.ca/itm/370047922792?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649 You can search for TD04, TD04L, or sti turbocharger, WRX turbocharger, 13t turbocharger. Just an FYI

 

[ToyRoverlander]

You could swap your small turbo out for a TD04L-13t-6cm commonly found on WRXs. Mainlander has this and it is a great low end match that does pull hard to 2700 then tapers off.

Like this one?
Turbocharger ~08 SUBARU WRX Forester TD04L-13T-6 210HP | eBay

If that one gives good grunt till 2700rpm, how would this one compare?

Turbocharger SUBARU Impreza STI TD05H 18G 7cm Housing | eBay

 

[gerg]

I must confess that I have never researched the td05 much. It does have turbine sizes very similar to the T3 family. the 7 cm housing is a .49 a/r equivalent sort of. So it is kind of small for high RPMs, but not rediculously small like some td04s. The 18G is quite a large compressor and I did a rough map. The dots range 1000 rpm - 3000rpm. 2200 rpm is the 6th dot. http://www.squirrelpf.com/turbocalc...=227&airflow6=263&airflow7=299&product_id=167
That is the TD04L I was refering to, but it much mre expensive than I was talking about.

 

[ToyRoverlander]

That td04 from the ebay link is a brand new genuine turbo, so doesn't sound too bad a price I reckon... I prefer a new turbo instead of a used one for peace of mind...
This one would be very interesting I reckon... I don't rev it much over 3k so this one should be perfect..


Looks like that other one wouldn't be such a good choice...

 

[Dougal]

When running a really small turbo it is wise to check the drive pressures. I bolted up a T2/T25 hybrid to my 4BD1T for an experiment once. I found above 3000rpm at 15psi boost the exhaust pressures would spike to 60psi.

 

[gerg]

I totally agree that if you are running a small turbo absolutely do not expect much out of it as far as total boost and high rpms. Push it too hard and it can have disasterous results.

 

[moosecruiser]

This is all great information the turbo that Wayne installed to inspire this thread is on my 84 bj 60 . It is nice reading everyone's frank discussions on the pro's and con's of this size of turbo . This being my first turbo I am driving light footed as a change from normal .
Mike , moose

 

[crushers]

once again, this application is for people that want low end response to 3000 rpm.

it seems Dougal and Gerg are fixated on high rpm turbo's.

the first time i drove a 3B with one of these turbos on it was in 1986 on my own 3B, sadly i was a newbie and i trusted another newbie to give me advice on installation. He told me the clamp around the middle was for mounting and it wasn't important. the turbo seperated after about a week of driving with disasterous results.
the next time was about 20 years later (2005ish) when Cody (i think that was him) stuck one on his 3B and took me for a ride and it pulled like a bitch. i believe his is still running today on his SOA 60.

i don't think the small turbo is going to suddenly grenade going cruising down the road, if you bag the s*** out of it then, well, it isn't the turbo that is at fault ... you been warned ... it is the small head thinking for the big head controlling the right foot.

 

[Dougal]

it seems Dougal and Gerg are fixated on high rpm turbo's.

Nope. I'm a big fan of small turbos, I'm currently running 19psi by 2000rpm.

My warnings are simple, turbos that choke before the engine runs of rpm can either float valves or overspeed and die. Perform all the checks and you know you'll be okay. If you don't then it's a roll of the dice.

 

[crushers]

i sit corrected
caution is a good thing.

 

[amaurer]

He told me the clamp around the middle was for mounting and it wasn't important. the turbo seperated after about a week of driving with disasterous results.

Damn that would have made a great thread.

 

[jfc]

so is the GT 2052 a little bigger than this turbo?

 

[crushers]

yep, what not to do and who not to listen to...
we all have our learning curves some are just more costly than others.

 

[gerg]

Wayne, sorry if I ruffled your feathers, I can see you put alot of work into this project. I actually dont have a problem with "small" turbos. When I say "small" I mean appropriately small. However, I do have a problem with sticking a turbo on without mappng the compressor. Without that you have absolutely no idea what this turbo is doing as far as RPMs. An inefficient compressor, as in one that is way off the map, will work the crap out of that turbine to achieve the desired boost, and wont let up until the waste gate opens of the engine chokes. Dougal has a good point about high back pressure and floating valves. Now you dont just need high RPMs to float a valve, you can do it with high back pressure. Do some reading on exhaust brakes and you will find that it is common to up the spring pressure to prevent the exhaust valve from being kept open during braking. High back pressure is a predictable consequence of a small turbo.

 

[crushers]

nah, no ruffled feathers at all.
i respect both your and Dougals posts, book knowledge is important.

this was a test run for the wasted 2LTE turbos laying around and those that want a cheap turbo install where normal highway and off roading is involved. i agree completely this would not be a good install for those that like to push their 3Bs above 3000 rpms. as i mentioned earlier, most 3B owners i know shift around 3200 and cruise at 2200-2600 ... this turbo seems to work well in that application.

agree / disagree / fawk off wayne.