Stock 2T 1600 Engine....What mods can I do?

[lachy216]

Hi,

Couldn't find anything pertaining to what you can do to just a plain old 2T without going to a 3T crank or 3T itself.
I have been looking for a 3T but with absolutely no luck at all.

So what can you actually do to the 2T itself?
I have Twin 40 Webers to go on. Planning on getting some sort of performance cam.
My main question is can i get new pistons/conrods etc for the 2T? and will getting some headwork done be beneficial? Oversized valves, port n polish?

I don't necessarily want heaps of power, just a good strong engine for cruising. I pulled the engine apart mainly so that I can rebuild it myself to understand the workings of it. (will be supervised by a qualified mechanic of course )

Can the 2T be bored at all for any gains? Mainly because i was looking at Wiseco Pistons in the 86mm so could i bore the block out to 86 from 85mm?

Any help would be much appreciated. Obviously if i could get a 3T it would be better but worst comes to worst and i cant find one. What should i do?

Cheers guys

[ToyTA22]

If you could tell us a few ideas you have, for example what is main use of vehicle, what gearbox and diff particularly diff ratio you will be using.3t conversion is not a necessity but will give a increase in torque and a extra couple of kw's.
To give you an idea I have a TA22 which in near future am building a 2T/3T conversion with wiseco 86mm pistons using approximately 10.5:1 compression ratio, can bore up to 89mm. Will be using a cam with approximately 288 duration (am looking at a couple of different regrind profiles). Head will have mild porting, size is not always the best idea but rather shape and finish, with 3mm oversize valves and multi angle valve seats. I have a TRD gearkit for the gearbox and a tomei lsd with 4.3:1 new diff gears. The car will be my daily driver and weekend club level motosport events. Hope this gives some idea.

[lachy216]

Thanks for the reply.

Basically it will be a daily for me. T50 gearbox and whatever the standard diff is is what Id be using or maybe get an LSD of some sort if thats a good way to go?
So whats the go if I were to get the 2T block bored to 86mm? Would that be beneficial?

One of my main issues is that one of the stock pistons from the 2T was damaged after being removed so Ive been trying to find some pistons to replace them. All i can find are ones 86mm or bigger that say theyre for the 3TC. Will these work for the 2T?

[Silly Rabbit]

If you want just a dependable 2T for daily driving just put everything back together right and you should have no problems. They are a tough little motor and with some new rings and bearings should just about cover more k's than you'll ever need.

As has been said they respond well to extractors, twin carbs properly tuned and jetted, and camshafts since you have the engine apart. No need to bore them out or do any headwork on them if you aren't building a big $$$ engine and chasing kw's. All depends on your budget.

As for spare 2T pistons I am sure someone on here would have 1 or 2 but if you can't find them ring Sleeka Spares in Adelaide or Auto Surplus in Mitcham in Victoria and they will have them.

Oh and yes 3T engines are nice but not something that is a massive gain from a 2T. Stick with the 2T as they do make good power if built right.

...and if you check this link you can see the spec sheet of a 2T that makes 200+hp N/A. The list of engine components is all pretty exxy but it is still only a 1610cc engine.

http://www.race-cars.com/engsold/toy...11890981ss.htm

[lachy216]

Cheers Silly Rabbit.

Yeah I have decided just to rebuild it exactly as it was. New pistons seals bolts etc. Some sort of cam, maybe a crower and twin webers.

Thanks for everyone's help.

[Hen]

Have a look at some of the drag cars in Peurto Rico. They're usually 3Ts, but they run insane turbos and insane times on the single cam motors. From memory Paradise Racing does a surprising amount of performance 2/3T stuff.

But that's really only relevant if you want to go totally crazy.

[ta22fan]

If it's completely stock, first thing would be to convert from the old dizzy-points to an electronic version. Next look at upgrading the carby. After that, and at some expense, you would want to look at swapping the cylinder head for the twin over-head cam (2TG). Final step is to look at turbo options.

[king-szeitszam]

Without going crazy I would just recommend strapping a 32/36 Weber on there.

Years back I did the whole twin sidedrafts with an adapter thing, but nowadays I feel like they weren't really worth it without spending bigger dollars on engine internals.
Weber will set you back ~$250 if you look in the right place. I've always been a fan of manual chokes.
A port and polish wouldn't hurt and do your rings and bearings, then slap on a set of extractors and you'll be happy.

I was getting about 9l/100km with that combination and honestly it's all you need.


Or you could go the twin Solex's, find/grind yourself a decent cam and see how you go. You may need to upgrade the pump too as I seem to remember the stock pump wasn't giving enough at tip in.
All depends if an extra 10kw or so is worth the build money and extra fuel cost to you or not (best I ever got was 16l/100km ish), but then there's the sound..
IMHO though if you're going to be spending anything over $800 on a 2T upgrade then it might be worth (i.e. more cost effective) waiting and seeing if any 2TG's or 3T's pop up.

[ctrain]

Convert your points to one of those electronic modules, i forgot the name of mine, put a 32/36 weber on it or a holley 350, extractors (4-2-1), nice 2.5" exhaust with a little hotdog in the middle and nice muffler at the back, probably get a MSD flamethrower 2 coil for the hell of it, maybe a nice little street cam, then get it dyno tuned, flog the fuck out of it, get bored of the power, then turbo it, simplez

[RACINROLLA]

can any one recommend a good kit or dizzy for an electronic conversion? And where have people bought a block of plate for the fuel pump, is it the same as early Holden or Ford or have you just made one?

Cheers matt.

[TE35]

There were kits for converting the dizzy to electric on ebay recently - not too expensive. The other ways to do it is finding a late 3T-EU distributor, or modding the one in there to fit 22R-E etc electronic pick-ups.
Also, stock 2T flywheels are incredibly heavy, I think they're around 12Kg. a 2T-GEU's one is around 9Kg, a 3T-GTEU is around 6.5Kg. It's getting hard to find parts for these engines, but you should be able to get a flywheel made up with your original one's ring gear used for a few hundred.

[73GTV]

There were kits for converting the dizzy to electric on ebay recently - not too expensive. The other ways to do it is finding a late 3T-EU distributor, or modding the one in there to fit 22R-E etc electronic pick-ups.
Also, stock 2T flywheels are incredibly heavy, I think they're around 12Kg. a 2T-GEU's one is around 9Kg, a 3T-GTEU is around 6.5Kg. It's getting hard to find parts for these engines, but you should be able to get a flywheel made up with your original one's ring gear used for a few hundred.

Pertronix:

[TheToyman75]

For Flywheel use the Fidanza Flywheel as sold for the 3TC powered Toyota Ace in the US. Its a 4kg Flywheel

[oldeskewltoy]

stock head typically does not have a 3 angle valve job. Nothing fancy, but a simple 3 angle over the stock 1, or 2 angle will improve flow with no other mods needed. A little research on 2T/3T valve jobs will show you the most successful angles to use