1981 TE72 3TC Forged

[MX73 86]

I just traded my 86 SR5 shell for a 1981 TE72 mint shell with new paint and full interior. I will post pics asap of new donor.







Build will include:

Cressi Front 5 lug 5X114.3
Tacoma Rear end 5X114.3 with LSD insert
Fully Built 3TC with Forged Internals est ( 375hp to wheels)
Custom Mounts
Custom headers
Custom Exhaust
W50 trans with steel case from Celica
Custom Driveshaft
Manual Steering rack from MR2
Fuel Cell PERFECT complete Interior

A few updates:

I have gotten my manual steering rack from my MR2

Will be getting my Cressi front end from the junk yard and also brake upgrade for front and rear

Ordering Cressida front suspension and getting Toyota rear set up for install.

Front Suspension 5 lug swap from MX83 Cressi



Add some extended wheel studs



Upgraded bushings for strength



LOCKER:



New Update:

Putting together my fully built forged 3TC with new parts that came in:

Eagle H-Beam Rods
Cometic Standard Headgasket
ARP Head Studs
Wiseco Forged Piston CR 7.5.1 (drop shipped from Wiseco)





Pistons came in Wednesday PM.





Head Parts for 9000 RPM



Stainless Steel Valves and bronze Valve Guides

New Precision 6262 Showed up today MAD Powa:




Block is back from Machine Shop also have polished crankshaft .













Block being reassembled for install:













Timing



High Volume Oil Pump



ARP Flywheel Bolts





Timing Cover



Oil Pan



Bottom End Buttoned Up Waiting on HEAD:





Head Is NOW PORTED AND POLISHED

[MX73 86]

Dropped money off for Turbo and engine to get machined.

Details include:

Block hot tanked
Bored over to 87MM
Will not need honed as we are not upgrading main studs
All new plugs etc

Mon: Turbo will be ordered:
Precision 6262

Head will be cleaned and rebuilt using

Stainless Valves
Bronze valve Guides
Vitton Valve Seals
Race Springs
Race Rockers

Rev to 9K

Will also be sending out the rear axles to Moser to be shortened for Hachi rear.

Josh

[sqznby]

Nice man, its good to see another 3tc swapped AE.
I'm very interested in what your doing with that rear end. What kind of mods are you doing to it to make it fit?
I wish I could find a spare block around here.




Subd

[MX73 86]

hey man

I am shortening the rear end to fit the hachi mount points. I will then send the axles to moser to get them shortened to fit the new shortened rear end. I am leaving the 5X114.3 bolt pattern and also the rear brakes. I will be installing the locker so that I can have a posi rear as well. I will post pics as soon as i have updates..

Josh

[MX73 86]

Head parts came in on Mon and the Turbo was ordered as well.

Hoping to have block ready by early next week.

Josh

[sqznby]

Hi Josh,

How are you going about shortening the rear? I'm doing the same thing to an 8.8. Thankfully my buddy let me borrow his GTS rear, so I'll be making my jig sometime this week.
I'm going with a TruTrac LS. Lookin forward to those pics.

Nice, what parts did you get for the head? Did you go oversized? What turbo did you go with?

Sorry for all the questions
Thanks
Sam

[MX73 86]

Hey my Fabricator and I will remove the axles and shorten the rear end and then remove the axles and send them to Moser to get shortened etc.

Head will be getting these parts nothing oversized just more beefy

Turbo is a Precision 6262

Josh

[sqznby]

Hah, I was more curious about how you were going to shorten them? In a lathe, lay it out and cut?

You gettin stainless valves?

Nice

Thanks man
Sam

[MX73 86]

Yes measure twice cut with fabircator skills.

Stainless valves.. Yes Sir...

Josh

[sqznby]

Gatcha dude, thanks.

Lookin forward to your updates.

[yellowsnow4free]

Fully Built 3TC with Forged Internals est (375hp to wheels)

It's really cool seeing a 3TC build in an AE86

I could've sworn I read somewhere that the best "3TC" is actually a 3TC bottom end with a 2TC head? Not 100% sure on that, just something I think I stumbled upon.

Keep it up

[MX73 86]

The heads are identical minus the big ports on the 2TC

With a head port on a 3TC head you are good to go and it will have better performance.

2T-C 85 70 88 at 6,000 rpm 91 at 3,800 rpm 8.5 1970–1979 emission controls (EGR)

The larger 1,588 cc 2T was produced from 1970 through 1984. Cylinder bore is 85 mm and stroke is 70 mm.

3T-C 85 78 115 at 6,000 rpm 109 at 4,800 rpm 8.4 1978–1985 emission controls (EGR)

The 3T displaces 1,770 cc and was produced from 1977 through 1985. Cylinder bore is 85 mm (3.35 in) and stroke is 78 mm (3.07 in).

Josh

[yellowsnow4free]

The heads are identical minus the big ports on the 2TC

With a head port on a 3TC head you are good to go and it will have better performance.

2T-C 85 70 88 at 6,000 rpm 91 at 3,800 rpm 8.5 1970–1979 emission controls (EGR)

The larger 1,588 cc 2T was produced from 1970 through 1984. Cylinder bore is 85 mm and stroke is 70 mm.

3T-C 85 78 115 at 6,000 rpm 109 at 4,800 rpm 8.4 1978–1985 emission controls (EGR)

The 3T displaces 1,770 cc and was produced from 1977 through 1985. Cylinder bore is 85 mm (3.35 in) and stroke is 78 mm (3.07 in).

Josh

Thanks for the info!

I'm looking forward to seeing how you do the motor mounts

[MX73 86]

Anytime

Josh

[MX73 86]

I got a GIANT snail in the mail...LMAO

Josh

[sqznby]

Nice man, I'm only a little jealous

[MX73 86]

Only a little... LMAO

Josh

[sqznby]

I didnt want to make it too obvious, hah.

Are your ss valves all stock sizes? Or, are they oversized?

[MX73 86]

Yes all stock sizes! Didnt want to do any crazy stuff to the head it will be ported and polished by my fabricator. He will also be doing the assembly of the entire engine and turbo system.

Josh

[sqznby]

Cool, thanks man I appreciate the info.
If you dont mind me asking. Where did you get your valves?
Do you have a link for them?
Is your fab guy doing the p&p or are you?

Sorry for all the questions
Thanks

[MX73 86]

Hey man I can get you the info for the valves and what not. Yes my fabricator is doing the P and P for my head as well as all of the assembly and GOZA machine shop is machining the block as well as the bore and hone.

Josh

[sqznby]

That would be great.
Thanks man
Lookin forward to your updates

[MX73 86]

Anytime..

Josh

[redroku87]

Looks awesome!

[MX73 86]

Currently waiting on my cam bearings to come from BRD and then it go time...

Josh

[redroku87]

Do you think that there is room under the hood of an AE86 for a four barrel weber, a bonnet and the piping to the turbo with a 3TC?

[MX73 86]

If you have a skilled fabricator then yes anything is possible.

For example here is a set up from my fabricator with a custom intake and blow through with custom exhaust manifold and turbo setup.




Josh

[redroku87]

Yes!

Sweet!
Thank you so much.

[redroku87]

Yes!

Sweet!
Thank you so much.
That intake manifold looks like its cast though.

[MX73 86]

He used a prefabbed intake and cut it up and custom made one for blow through.

He could have made a custom one off but it would have taken longer and been more expensive...

Josh