3SGTE Swap 97.7531483% Complete, Started on the first try! Options

[WannabeGT4]

I started my 3S swap for the first time tonight... It fired right up on the very first attempt and kept running until I turned it off. That was a pleasant surprise since this is my first swap and harness I've done.

I just need to find that damn clamp for the AFM. I know it's hiding in my garage somewhere. If all I lost was a clamp then I'd say I'm doing pretty good.

The open 3" downpipe makes this thing sound mean. Turbo spool is VERY audible even during light throttle in neutral. Cold idle is normal at 1100 RPM and drops to 800 once the engine is up to operating temperature. The RC AFM and ECU seem to be working great on the 90-91 harness converted to a 92-93 RC harness. All my gauges seem to function normally and all the dummy lights work fine too. I'm expecting a code 54 and low boost mode but that's fine with me until I get this tank of 87 octane used up.

First test drive will be tomorrow after work once I slap the axles in and fill the transmission with fluid.

Time to get some much needed sleep.

[jgreening]

congrats. Now, tell us what transmission is in there.

[WannabeGT4]

A140E

[jgreening]

Impressive.

[WannabeGT4]

Impressive.

Thanks... Someday I'd like to fit an A540H... Someday.

[jgreening]

Impressive.

Thanks... Someday I'd like to fit an A540H... Someday.

Now that would be cool.

[presure2]

good job man!
lets see some pics and vids!

[playr158]

congrats!

[jcbass7]

nice! I hate axle seals for the record... but have fun with the car! you are exactly where i was about a week ago.

[Defgeph]

I think this would be the first 6gc 3s swap thats auto. Congrats Justin !

[shin]

nice. good job man show pics when ya can.

[JoKeRkId613]

it's about time, justin! lol. jk. glad to hear it started up. auto 3s ftw! goodluck. now post some damn pics/vids.

[94_st_hatchback]

congrats...i wanna see pics/vids...auto 3s..wow..

[tomazws]

Awesome! I wanna see pics of your impressive work!

[WannabeGT4]

Thank you all for the encouraging words. I forgot to take pictures tonight but I'll get some to you all soon.

The car is moving under it's own power but I ran out of time to do an actual test drive. I still need to try a couple things with the ECT computer but I'm rather confident that it will be shifting like stock in no time at all.

[Dr_Tweak]

Which ECT computer are you using?

-Doc

[WannabeGT4]

Which ECT computer are you using?

-Doc

The stock one for the 94 GT. If this doesn't work I'll either switch to some form of sequential controller or a stand alone ECT computer from one of the older toyotas.

[Kadett]

Maybe answered in another post, but what was the reason you decided to run the 3S on a Auto Tranny? Seems to me that a manual tranny would be more fun?!?

[WannabeGT4]

Maybe answered in another post, but what was the reason you decided to run the 3S on a Auto Tranny? Seems to me that a manual tranny would be more fun?!?

I don't want to clutter this thread with debate so here are the answers in an easy to read list:

1. To be different
2. To prove people wrong
3. Convenience
4. Testicles

Convenience was number one but that slowly changed as people started commenting on the idea.

[Kadett]

Ok. dont really wanna know the reason behind number 4

But props to all the work you have done and have fun with the car

[WannabeGT4]

Took it for a test drive tonight. It's insane even without the torque converter lockup working. I don't have a 2nd gear either since the transmission is in manual mode... but with as quick as 40mph sneaks up on you I'm really excited to see what this thing can do with a fully functional transmission.

I'm going to feed the ECT ECU an IGF signal and see if that'll get it shifting. From what I've read in the troubleshooting sections is that if there is no IGF signal for 4 consecutive revolutions then the computer stops the engine... It doesn't say anything about stopping the transmission solenoid control but it would make sense that the computer would shut everything down since the engine's not supposed to be running anyway.

I don't think the neighbors would appreciate me running around the neighborhood with an open DP so I don't have any videos for you all but I'll try and get some pictures tomorrow after work when the sun is still out.

[Defgeph]

Awesome! I cant wait to see some videos. You are the man !

I would love to see gauge cluster shots.

Congrats again

[jgreening]

mod list to engine and transmission?

[WannabeGT4]

Stock Trans and Axles
92-93 (Possibly RC?) Engine, Stock but refreshed with all new seals and gaskets.
RC ECU and AFM
90-91 harness converted to 92-93 RC harness.
All new Toyota ignition components
Ceramic CT26 Turbo rebuilt by Majestic Turbo of Texas
Walbro 255lph fuel pump
Open 3" SSAutocrap DP
Polyurethane filled motor mounts
A2A TMIC until I get the intake adapter to fit my ST205 IC

Locked in low boost mode until I use up this crappy gas and get an AVCR.

I need to get an air filter. What does everyone think about the AEM Dryflow filters? I hear they flow better than K&N and you don't have to oil them.

[jgreening]

Stock Trans and Axles
92-93 (Possibly RC?) Engine, Stock but refreshed with all new seals and gaskets.
RC ECU and AFM
90-91 harness converted to 92-93 RC harness.
All new Toyota ignition components
Ceramic CT26 Turbo rebuilt by Majestic Turbo of Texas
Walbro 255lph fuel pump
Open 3" SSAutocrap DP
Polyurethane filled motor mounts
A2A TMIC until I get the intake adapter to fit my ST205 IC

Locked in low boost mode until I use up this crappy gas and get an AVCR.

I need to get an air filter. What does everyone think about the AEM Dryflow filters? I hear they flow better than K&N and you don't have to oil them.

K&N do not need to be oiled either. I think virtually any air filter will do the job very comparably to other filters but wouldn't buy HKS due to oil requirement and price.

[playr158]

ummmm greenboy....you have to oil K&Ns

[jgreening]

ummmm greenboy....you have to oil K&Ns

my bad.

[WannabeGT4]

Is it normal to sound like an F16 preparing for takeoff when I close the throttle suddenly? I have no BPV so I was thinking it was compressor surge but it doesn't have that fluttering sound you usually associate with surge.

The only other thing I could think of is a stuck wastegate or defective actuator but I'm not overboosting so I'm kinda leaning towards compressor surge.

Any ideas?

Could the fact that there is no air filter or exhaust just be making the turbine noise more pronounced?

I'll try and get a sound clip for you all later.

[zCelicaDude]

your not using an air filter???

so is it just direct air going into your turbo??

[WannabeGT4]

your not using an air filter???

so is it just direct air going into your turbo??

Yeah it's been pretty rainy and wet down here so I'm not too concerned with dust right now. I don't plan on leaving it that way for too much longer though.

[zCelicaDude]

Is it normal to sound like an F16 preparing for takeoff when I close the throttle suddenly? I have no BPV so I was thinking it was compressor surge but it doesn't have that fluttering sound you usually associate with surge.

youve answered your own question mate.

you dont have an air filter, hence nothing muffling/blocking the noise the turbo makes. so as the turbo compressor wheel spins up to create boost and then u back off the throttle... the turbo compressor wheel will spin until it eventually looses its momentium. hence making the cool wooshing f16 sound u describe.

also i wouldnt recommend not having an air filter on, its purpose isnt only for dust, but also to stop things going in there that should ... i.e a leaf or insect, if something does go up there the turbo compressor could get wrecked... and thats expensive. get a pod filter or something asap!

[jgreening]

update please

[hashmaster52]

update please

x2

[WannabeGT4]

Only update is that I have put 100 miles on it and filled up with 91 octane. I'm looking into dumpvalves and I need to get an intake adapter made to fit my ST205 intercooler. I'll probably try hooking up the igf wire to the ECT ECU Monday... Thanks to Marting Luther King Jr. for the day off.

[WannabeGT4]

Last night I verified that the wastegate and acutuator are operating perfectly normally. I should be running on 6-7psi since the TVSV is capped off... but I did overboost to 17psi the other night so I can definitively say that there is an inherent boost creep problem with free flowing exhaust and the CT26. I have an extra exhaust side for the CT26 so I think I'll start chopping away at the wastegate port and swap them out.

[x_itchy_b_x]

i dont understand this creep people are experiencing. i ran the ct26 with just a 3" DP for a while, when the sound eventually got to me i finished hooking up the exhaust. but i never experience creep to that extant. creeping to 17psi when its supposed to be at 6-7 is ALOT. a psi or 2 isnt a problem but that seems a bit extreme to me. maybe the hose that connects to the actuator has a pin hole in it or the diaphragm itself?

[Defgeph]

Did you grind out that ssautocrap pipe justin ? If not your waste gate door could be getting stuck on the flange spiking your boost.

[WannabeGT4]

i dont understand this creep people are experiencing. i ran the ct26 with just a 3" DP for a while, when the sound eventually got to me i finished hooking up the exhaust. but i never experience creep to that extant. creeping to 17psi when its supposed to be at 6-7 is ALOT. a psi or 2 isnt a problem but that seems a bit extreme to me. maybe the hose that connects to the actuator has a pin hole in it or the diaphragm itself?

The hose from the compressor housing to the wastegate actuator is brand new and a tight fit with new clamps. The other port is blocked off with a rubber cap and a clamp. I'm almost positive the diaphragm isn't leaking as I applied a steady 7psi to it and it held fully open for as long as there was pressure.

Did you grind out that ssautocrap pipe justin ? If not your waste gate door could be getting stuck on the flange spiking your boost.

Yeah I made damn sure that was ground down. Too many peolple before me had that problem with this cheap downpipe. I used my extra exhaust housing as a sort of dry run to make sure that the wastegate door wasn't hitting any part of the downpipe.

I'm just as baffled as anyone else why some people have problems and others don't.

[lagos]

I'm just as baffled as anyone else why some people have problems and others don't.

an open downpipe will make the problem worse.
some people dont even realize they creep because they dont have a peak hold boost gauge and cant keep their eyes glued to the gauge for the whole rpm range.
other people keep their cats in place, or use smaller exhausts.

[WannabeGT4]

Decided to put on an air filter today. Frozen condensation made the flapper door stick so the car was hard to start and wouldn't stay running without stepping on the throttle. Hopefully the filter will prevent moisture from gathering inside the AFM.

[brianforster]

i ran open downpipe and boosted to like 12.5 psi on an open downpipe and that was the max i ever hit..

[lagos]

Decided to put on an air filter today. Frozen condensation made the flapper door stick so the car was hard to start and wouldn't stay running without stepping on the throttle. Hopefully the filter will prevent moisture from gathering inside the AFM.

i doubt its from moisture in the afm. the cold start injector switch goes bad. its a common problem on almost all 3sgte's.

[celicast3sgte]

so.. in the beginning of the thread you mentioned another tranny model #. what tranny is that?

[WannabeGT4]

Decided to put on an air filter today. Frozen condensation made the flapper door stick so the car was hard to start and wouldn't stay running without stepping on the throttle. Hopefully the filter will prevent moisture from gathering inside the AFM.

i doubt its from moisture in the afm. the cold start injector switch goes bad. its a common problem on almost all 3sgte's.

No, it's the frozen condensation that made the flapper door stick... Trust me, I know what I'm doing. I couldn't even budge the flapper door it was so stuck. I took a hair dryer to it and it ran like normal after it was all melted.

so.. in the beginning of the thread you mentioned another tranny model #. what tranny is that?

AWD ECT from a RAV4.

i ran open downpipe and boosted to like 12.5 psi on an open downpipe and that was the max i ever hit..

I have a freshly rebuilt turbo and an RC ECU. Maybe that's the difference.

[snapshotgt]

Where are the pictures!

[jgreening]

slushbox update please.

[WannabeGT4]

Sorry, I've been sick. I had the trans way over filled so I drained some out. I've pulled the wiring from the ECUs and I'll be adding a couple wires to the ECT computer when I start feeling better. Otherwise nothing interesting has happened.

[Defgeph]

Hrm... how about one freaking picture ? lol

Feel better man.

[WannabeGT4]

It's really just a run of the mill 3S swap but I'll take one or two for you guys.

[WannabeGT4]

[WannabeGT4]

12MPG has motivated me to do something about getting this transmission to shift on it's own. I tried to send it an IGF signal and that didn't seem to do it. I downloaded the 90-91 camry EWD and it looks like the stand alone transmission controller isn't so stand alone after all. It still needs input from the engine computer that the 3SGTE ECU can't provide.

Next step is going to be either making my own transmission controller... not as hard as you'd think, or buying the PCS transmission controller (freakin' expensive for what it is).

The only other option I can think of that may work well is to use the 5SFE computer to run the 3S and ECT while making corrections with an Emanage Ultimate.