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#30
by
dh13
on 02 Jun, 2010 11:27
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I like it. I just picked up an AHU for my 1983 toyota 4x4 pickup. I need to finish my caddy then I will be working on it.
Keep up the good work.
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#31
by
410
on 02 Jun, 2010 19:33
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Now that I have a few miles on this setup, I'm starting to have some minor issues. My vanes in the turbo are already getting a little sticky and it's affecting my vane control setup. I think that the vanes are open too much in part throttle conditions causing soot to build up on the vanes.
I noticed about a week ago that when the engine is cold I would hit a stiff spot in the throttle. Once I got past this spot, things would loosen up but it has progressively gotten worse. This extra stiffness is also causing a greater boost spike. When I first installed the setup I had no more than 1 psi of boost spike at full load but now it's up to 5psi.
So, I plan on trying two things to remedy this. First I will remove the turbo, clean it out and get things moving freely again. Second, I will adjust the vane control to function from half open to closed when the thottle is moved from idle to full load. Currently the vanes are fully open at idle and fully closed at full load. Third, I will build another boost control device with a larger dia. cylinder so it will be able to exert more force on the vanes to back them off once boost builds. This is what its all about! Add something new and play with it 'til your happy with it.
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#32
by
4wheeler
on 04 Jun, 2010 06:17
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Good to hear all the results of you work.
Would you mind taking pictures of your turbo setup and vane controller?
Also if yo could explain how you built your vane control and what parts you used and where you got them?
Thanks a lot for sharing your build and all your results, good and bad.
Derek
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#33
by
Rabbit on Roids
on 04 Jun, 2010 13:20
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please tell me you ditched the stock toyota air box by now? the MAF is so tiny inside. why make your turbo work for its air?
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#34
by
410
on 04 Jun, 2010 20:09
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Hey 4wheeler, If you check out the beginning of this thread I think you'll find all the pics your asking for. I made all these parts myself. The levers and some brackets are made from 1/4" aluminium plate. The wastegate I built myself out of exhaust pipe and sheet metal.
Rabbit on Roids, sadly I have not replaced the stock airbox. The mass airflow is gutted but you are right. My poor turbo is sucking its air in thru a straw. I had a look at an air cleaner setup for the 3.0l v6 toyota and it isn't much better than what I have. I would like the stock airbox from a tdi ideally. I don't want an open element like a cone filter because the intake noise would drive me crazy. Any other suggestions are always appreciated.
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#35
by
dh13
on 09 Jun, 2010 12:28
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Hey 4wheeler, If you check out the beginning of this thread I think you'll find all the pics your asking for. I made all these parts myself. The levers and some brackets are made from 1/4" aluminium plate. The wastegate I built myself out of exhaust pipe and sheet metal.
Rabbit on Roids, sadly I have not replaced the stock airbox. The mass airflow is gutted but you are right. My poor turbo is sucking its air in thru a straw. I had a look at an air cleaner setup for the 3.0l v6 toyota and it isn't much better than what I have. I would like the stock airbox from a tdi ideally. I don't want an open element like a cone filter because the intake noise would drive me crazy. Any other suggestions are always appreciated.
You seem to know your stuff, so why not build a aluminum enclosure for an open element cone filter that uses the hood to seal the top, and draws air from the stock location. Of course enlarge the hole so more flow will be achieved.
Just a suggestion.
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#36
by
410
on 10 Jun, 2010 20:14
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Well, I may know some stuff, but I am still working on my vnt control. As far as I'm concerned it's still a work in progress. Dh13, the only issue I have with an air filter system as you suggested is the noise. I have been spoiled by the lack of intake noise with the stock airbox. I removed one baffle in the stock airbox to increase airflow and ended up reinstalling it an hour later because of the noise increase. I think I will try a stock airbox from a tdi. When I'm at that point I'll post a wtb on here or tdiclub. I'm sure there is someone out there that installed an aftermarket air cleaner system on their tdi and has the stock airbox just sitting around taking up space.
I have finished building a new wastegate for my setup. I used an lda diaphram and top cover and built my own base. I have also redesigned all the pivots to remove excess play. I haven't had achance to install anything yet but hopefully soon. I'll post pics asap.
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#37
by
dcg9381
on 06 Jul, 2010 14:32
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I'm interested in a VW diesel powered 4runner one of these days, just have a few things in front of it.
For an intercooler, I wanted to show you what I did... My 4runner is a non-factory turbo (megaquirt EFI). Like you, I ran w/o an intercooler for a while, but saw huge intake temps. I have A/C, so there is no real easy way to stuff an IC behind the grill and I didn't want to expose an IC on my front bumper.
As such, I built a scoop and hid the IC in the factory skid plate:
Obviously, not a real good thing if you were doing deep mud, but the truck is too nice for me to doing that sort of stuff these days...
I get an intake temp drop of 60-90 degrees with this setup above about 25 mph.
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#38
by
Rabbit on Roids
on 06 Jul, 2010 23:52
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the air box really isnt bad, but the MAF sensor is horribly restrictive.. just make up an adapter to make the intake piping mount directly to the air box, rather than keeping the mass air sensor there to restrict the intake.
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#39
by
lucasone
on 07 Jul, 2010 02:37
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Nice set up! I am in the middle of puting a VNT17/22 on my MTDI and I really like your VNT controll. What would be the disadvantage of going directly to the vane lever with the boost can and eliminating the second lever?
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#40
by
greentdi
on 18 Jul, 2010 22:34
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I am considering an alh swap into a 4 runner. I have the engine ecu and harness. Found the 4 runner just need to do more research on what trans to use. I want an auto if possible. I think you have a very nice set up. I love toyota trucks and I love vw diesels.
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#41
by
Rabbit on Roids
on 19 Jul, 2010 12:56
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DO NOT use the toyota A340 transmission, they will not handle the torque. they normally last 100k miles behind a V6, and they dont have near the torque of a diesel..
toyota 5 speeds are darn near indestructible.. the 4 banger units (W&G 56) are slightly weaker than the V6 trans (R150). you can put whatever you want in front of an R150 in a toyota.. it wont break, unless you can get the tires to hook up.
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#42
by
410
on 19 Jul, 2010 16:41
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I love my 5 speed transmission. It makes the truck so much fun to drive. I'm not familiar with the toyota automatics, but a rebuild every 100k doesn't sound too bad if you really want an auto. There's a similar truck in my town with an auto and the 22re. I found it to be quite gutless compared to mine when I still had the 22re. The autos do seem to rob a lot of power.
I have ditched my airbox temporarily to try a tube style filter hooked up directly to the turbo inlet. This setup is much quieter than I had anticipated. Only slightly more noise under heavy load. Very tolerable. Spool up times improved slightly but the biggest difference I noticed was less surging. I've been able to turn up the boost a little more because of this. I am pulling in slightly hotter air but my underhood temps are not all that bad.
I also bought some new tires. 31x10.5x15 Safari TSR. They are made by Kelly Springfield. The diesel turns these with no trouble at all.
I'm now waiting for some mandrel bends to build a new downpipe. My current downpipe is a modified one from an AAZ.
Thanks for all the comments guys. This truck has been a big project and is still ongoing.
Pics coming when I get a chance.
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#43
by
410
on 20 Jul, 2010 22:21
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New tires!
With a close up of the tread pattern.
And my new air filter.
You can also see the change I made to the boost can for more adjustment.
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#44
by
Rabbit on Roids
on 21 Jul, 2010 12:31
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that air filter needs to be bigger..
not saying mine is the optimal setup, but bigger is better with a turbo intake..
last time i upgraded my turbo intake, i saw quicker spool times, and 4 more psi on the top end.
that thing looks like a lawn mower air filter. or a hot tub pump filter..