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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

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Old 06-24-2007, 06:58 PM   #1 (permalink)
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22RE Turbo questions

I'm going to turbo charge my truck because it's too slow...and I have a turbo fetish so I have a few questions for the turbo guys.

It's a 22RE with a new Toyota OEM short block, probably about 50+k miles on it so far. Timing, radiator, water pump..all the stuff
is new so I think the engine is in good enough shape. The kit I'm looking to buy includes an FMU so hopefully I don't run lean. My
main concern is compression ratio, what is it? Annnnd, how much boost should I safely run with an FMU? Also, what size turbo did
they use on 22RTEC originally? Ok, last question. Where does the oil feed come from?
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Old 06-24-2007, 07:01 PM   #2 (permalink)
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You need to get up with this guy.
http://22returbo.net/
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Old 06-24-2007, 09:38 PM   #3 (permalink)
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Howdy! Maybe I can help you some.

The stock compression ratio is about 9.4:1

Oil feed can come from several places, but i use the port between the passenger side motor mount. Dont forget about return to the pan.

The stock turbo on the 22rte was a ct20.


The stock compression ratio is a bit too high to take advantage of a turbocharger, unless you fully tune your motor. In which case you'll need some sort of aftermarket ECU and fuel mods to go with it, plus you'll have to really retard your timing under boost to keep from detonating your motor to death. And even then you'll really be limited to little boost, else you'll risk blowing something in your motor. The stock ct20 is in my opinion junk, its expensive and fails too soon, you can get a nice T3 or T3/T4 to work however, and they are a lot cheaper with better performance. You said you had a new short block, did you have any work done to your head before you put it back on? Have you considered rebuilding your motor? I know you said its only got 50k on it, but you can have some stock 22rte pistons installed during the rebuild which will drop your compression ratio to a more turbo happy level making tuning a lot easier. Anyway, hope some of this was helpful... its really a blast to drive once its properly set up, but if not it can be a nightmare. Best of luck!
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Old 06-25-2007, 09:15 PM   #4 (permalink)
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I'm not really worried about tuning. I installed and tuned my 93' 5.0 mustang. 206k miles on the motor and 10psi. of boost and I ran it hard over and over. Maybe it was just the car but I'd like to think it was my tuning.

I'm just wondering what amount of boost a stock 22RE can handle that's in good shape mechanically so I know what I've got to work with for now.
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Old 06-26-2007, 05:59 AM   #5 (permalink)
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You should be worried about tuning. The EFI on the 22RE isn't nearly as flexible as the EEC-IV of the 5.0L Mustang. There isn't any way to interface with it or change timing / tuning maps.

LC Engineering indicates that a "stock" 22RE can handle moderate amounts of boost with premium fuel and retarding the base timing. We're talking ~5psi or under. That doesn't mean that she won't have tip-in throttle transition or other drivability issues. I've never done it, so I simply can't tell you how well it will work.

What I'd call "best case" - Rick over at fullboogie.net has a stock 22RE - 1993 if I recall right. No internal mods. He has programmable EFI and a nice ball bearing turbo. He's been able to exceed 10psi on that setup and 175hp or so - an 80% improvement over stock. Note Rick tunes turbo engines for a living. I don't know what his EGTs are or how realistic those number are in real life.

You're in Austin - I've done a turbo 22RE. You should come by and have a look some time if you're seriously considering it. I've got at least one turbo manifold that might be of use to you also.

If you're going to do it, I'd definitely move to ARP studs. Consider an MLS head gasket if you're machined for it. I blew a HG very quickly on a 8.5:1 CR motor, so it's very easy to have issues...
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Old 06-26-2007, 09:14 AM   #6 (permalink)
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Quote:
Originally Posted by dcg9381 View Post
You should be worried about tuning. The EFI on the 22RE isn't nearly as flexible as the EEC-IV of the 5.0L Mustang. There isn't any way to interface with it or change timing / tuning maps.

LC Engineering indicates that a "stock" 22RE can handle moderate amounts of boost with premium fuel and retarding the base timing. We're talking ~5psi or under. That doesn't mean that she won't have tip-in throttle transition or other drivability issues. I've never done it, so I simply can't tell you how well it will work.

What I'd call "best case" - Rick over at fullboogie.net has a stock 22RE - 1993 if I recall right. No internal mods. He has programmable EFI and a nice ball bearing turbo. He's been able to exceed 10psi on that setup and 175hp or so - an 80% improvement over stock. Note Rick tunes turbo engines for a living. I don't know what his EGTs are or how realistic those number are in real life.

You're in Austin - I've done a turbo 22RE. You should come by and have a look some time if you're seriously considering it. I've got at least one turbo manifold that might be of use to you also.

If you're going to do it, I'd definitely move to ARP studs. Consider an MLS head gasket if you're machined for it. I blew a HG very quickly on a 8.5:1 CR motor, so it's very easy to have issues...
Exactly the kind of info. I was looking for. Thanks.

I've talked to you on the phone before back when I had my 4runner. Probably about turbo stuff or just wanting to check out your setup. I'd love to see what you've done with yours. Is it done? Do I get to feel the new found power?

Here's what tune I had in mind for mine. MSD BTM or 6BTM with FMU. I know it's a terrible way to tune but I can't do anything all out and fancy right now so I'm just looking to get a little extra power for now and then when I can go all out and fancy, I'll already have a nice turbo kit, intercooled too... forgot to mention that.

PM me your number, I'd like to chat more.
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Old 09-26-2011, 01:02 PM   #7 (permalink)
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I realize this thread is from 07 but I have some questions too because I'm thinkin of doing something similar in the near future.
I'm only planning to run 5-10 psi, probably closer to 5
my questions are:
How do I need to tune it?
Do I need new injectors?
How much does the block need to be decked to use a MLS?
Is there a better option for HG?
How hard will it be to find a manifold for a T3/T4 hybrid?
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Old 09-26-2011, 01:26 PM   #8 (permalink)
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Megasquirt . Yes you need new injectors. I would run the oem HG and some ARP studs.

E85 will get you MUCH better results if you have access to it.
if not
Water/Meth injection is definitley needed!

It isn't that hard to find a turbo manifold.. Just expensive to get a good one aftermarket. I would recommend hoggin out a stock 22rte manifold and if you NEED and adapter for the turbo get an adapter.. If I were you I would look at compressor maps on different turbos and figure out what the hell you want. Don't just guess at what would work okay.

If you need any questions answered about turbos feel free to ask. No offense, But your knowledge on what to do so far seems adequate enough to blow up your motor. LoL.. If you are serious about this you need to really read up and understand how all this turbo stuff works.
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Old 09-30-2011, 05:30 AM   #9 (permalink)
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i know of a guy running a straight stock 22re with a t4 turbo and intercooler bolted up to the manifold. he runs 8psi no problem. i dont know if this would work in all cases but you could try.
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Old 09-30-2011, 06:30 AM   #10 (permalink)
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T4 turbo doesn't mean anything except tell us what flange he's running. That is no indication of actual size for flow characteristics.

While 175hp is impressive from a 22re, I think there are other easier ways to get significantly more horsepower and torque, of course, at the expense of a few hundred pounds extra over the front tires. (7M swap )

I bet a 175hp 22re feels pretty cool.
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Old 10-12-2011, 07:37 AM   #11 (permalink)
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I hate it when people think T4 turbo means ANYTHING AT ALL... Do you understand how much variance there is between ALL the turbos classified as T4? It is a flange size/shape...

It is like me asking you what size and type of bada$$ tires you just bought for offroading and you say... "Well, they fit on my 15" rims..."

I want know the inlet/outlet, flanges, .a/r size, types of housings hot and cold side, size of both wheels, type of wheel, type of bearings,what wastegate style and more ~lb/min... yadaydayada..... all the IMPORTANT stuff. Even a turbo maker and model helps too...
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New motor .40 over, run 10* timing.Engnbldr RV head-ported, LC Cam
Newer intake t/b swap, Supra afm, intake/batt swap,new oem cap'n'rotor, bpr5egp. NGK oem upgrade wires
ported oem exhaust manifold, 2.25" magnaflow exhaust&cat.

33x12.5x15 BFG M/T on 15x7steelies, stock 4.10's wider rear axle
suspension...maybe 1" up front and 2" in back. It flexes well..a lil bit. =D Clearanced fenders and slightly longer than stock shocks.

Last edited by 4x4climber; 10-12-2011 at 07:48 AM.
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Old 10-13-2011, 06:03 PM   #12 (permalink)
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I wouldn't bother with it, I really don't like my 22ret.. I have no low end and it would cost a boatload to make it spool really quick and some tuning knowledge. Waste of money if you ask me for such little hp
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Old 10-13-2011, 06:22 PM   #13 (permalink)
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Yeah, i do agree with it being not worth it in the long run. Do a 3.4 swap if anything at all. I do love turbos, but the 22re in its turbocharged state is still a dog.
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Old 10-13-2011, 06:36 PM   #14 (permalink)
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Yeah, i do agree with it being not worth it in the long run. Do a 3.4 swap if anything at all. I do love turbos, but the 22re in its turbocharged state is still a dog.
I agree turbos are great, hell my old tow rig hit 50psi on the street

I swear I suffer from insomnia and after reading countless swaps and working on my personal rig, Toyota has always been way ahead of the game when it came to everything but my god do they make it complicated. These motors have more vacuum lines and stuff attached to them than a truck in mexico, the 3.4 swap while cool will add up to be expensive unless certain circumstances. Thats why I'm gonna sell my 22ret and r151f and do a 4.3 and th350, granted mine is a off-road only rig but I love simplicity and how cheap that stuff is.
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Old 10-13-2011, 06:36 PM
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