2 T engine to increase performance

[caferacer]

I have a 2T engine in good order and have thinking about simple things to improve performance and would like some advice.

1) Install different carbies will this help.

2) Improve exhaust systwm

3) Electronic ignition system

4) Will a different cylinder head fit this block?

Is there any other improvements that can be made without building a complete engine or converting to another engine. Or is it a waste of time.

[RHINO145]

you can put on a Yamaha DOHC, extractors and a nice webber and it will get along nice although in the long run your better off with a newer engine (4AGE)

at least thats the impression ive been given

[Willofan]

If you can find the twin carby and manifold set up from a 2TB that will bolt straight on, or you can fit a Weber downdraft with some extractors, 2" exhaust and give the camshaft a mild performance grind. That'l make it run sweet without going all the way.

The Yamaha twincam head is engine out and rebuild using all the correct 2TG bits which are hard to come by, easier to find a going 2TG and slot it in. They pop up sometimes between $600 - $1200

Good luck

[ctrain]

I would get a weber 32/36 and a manifold, i think you might have to change the throttle linkages? (can someone verify this) but depends on which car its in.

You can put twin solexs on them but you have to source a sidedraught 2t-3t manifold which are pretty rare.

I have a nice cam in mine (ground is 270) which is perfect for the street, makes it sound nice n lumpy.

Get some 4-2-1 extractors, these are perfect for a 2t because its not a very powerful engine and it provides lower end power, 2t isnt a very revvy engine, i have 4-1 which i regret but it still have them on anyway.

im getting 2.5 inch pipe all the way through to a hotdog, make it sound like the old rally cars ,

im not sure about electronic ignition system but i would think that it would be better, my mate has an eh premier and he put a electronic dizzy in his and he says it runs better.

"4) Will a different cylinder head fit this block?"
Yes a 2tg DOHC will fit but its to much of a hassle as when you take the head off you'll probably have to rebuild the engine anyway, im not sure about a 3t head

All the info that i've read on toymods has told me if you do up a 2t with a 5speed, extractors, carby, some other little bits, they do go pretty fast and do give some newer cars a good flogging (eg. commodores)

[Silly Rabbit]

Hunt around and pick up 2nd hand parts and you should be able to do it on a reasonably cheap budget as well. Good condition 2nd hand extractors are around for $60-$80 plus postage, 32/36 Webers are on ebay pretty much every other week and go for between $150 - $200, adaptor plate for 2T intake to fit it is about another $20-30. I think you can use the standard linkage as well until someone tells me otherwise. Cam can happen down the track funds permitting. Just work on intake and exhaust and you should be reasonably happy with the gains.
If you were to buy these parts new you would be looking at about $300 for extractors / $500-$600 for Weber etc etc....2nd hand and savour the cheap fun

[caferacer]

Thanks all for the advice.

That gives me some ideas. Rinho145 gave me some info on the 2TG heads (Yamaha DOHC) that will fit on the standard block but I gather very hard to find.

I gather the inlet and exhaust manifolds for these heads (2T and 2TG) are different and realising that there must be timing gear for this mod as well.

The other thing is did any of you have trouble with insurance with modifying the engine.

I am working the car for my son he is only 18 and not very experienced in driving so need to make he does not be too much of a rev head.

I am very handy with mechanical things do Italian bikes up and had many cooper s as a kid.

[Silly Rabbit]

Ahhh the good old Mini Cooper S...now there was a Meccano car if ever there was one.......take it all apart and put it back together in an afternoon if you wanted .......my first and second cars were Minis...happy days.

2T and 2TG heads have completely different bolt patterns for intake and exhaust manifolds so make sure you get the right extractors. As Willofan said, don't bother cobbling together the 2TG head with the current setup....just buy a complete 2TG if needs be...certainly will be a lot cheaper / less headaches.

Insurance should not be too much of a problem. Extractors can be claimed against not being able to find a non rusted std exhaust and I very much doubt a different carb would worry them.

[NME308]

Hehe, Caferacer your question has an answer as long as the proverbial piece of string...

Is it supposed to be P plate legal?

Is it for street driving or track days?

As mentioned above for what they are worth the best value for money is the cam, carb, and extractors route. The carb choice will always create debate - I chose Holley because my background taught me the finer points of their tuning. If you have knowledge or help with such knowledge on any of the different types of carb i.e. Webber then run that direction!
Cam is best selected by contacting the likes of Wade Cams (or others that I just can't think of now...) and giving them an honest picture of the cars purpose in life! I had a 25/65 grind in my first 2T and it was a bit aggressive for the standard springs and I was well into valve bounce by 6500rpm.
Extractors of either 4 into 1 or tri-y, as either will make for better air escape than factory. I had a 2in 'sports' exhaust on my first 2T celica and it sounded like poo i.e. sounded like a 1000cc sports bike at full flight only appeared much slower to the naked eye.
As always the sum of the parts will only ever be as good as the tune!

If you have very deep pockets then take a look at the Peurto Ricans and their shennanigans with the T series engine... 3TCgarage just had reports and footage of a corolla running 7.61@174mph or thereabouts with a turbo 3T. The 2T and 3T(C) are 'almost' identical apart from 200cc's displacment so what works for the one will work for the other!

Cheers,
Jason

[caferacer]

thanks again.

How is this Weber "32/34 DFT 9a" it is on ebay

[Hurricane]

I have a 2T engine in good order and have thinking about simple things to improve performance and would like some advice.

1) Install different carbies will this help.

2) Improve exhaust systwm

3) Electronic ignition system

4) Will a different cylinder head fit this block?

Is there any other improvements that can be made without building a complete engine or converting to another engine. Or is it a waste of time.

how much money are you lookin at? under 500, under 1000?

1) there is lots of carbys to choose from, side draught of down draught, webbers,holleys im not sure there is any direct bolt up to the stock manifold?
my pick would be stock solexs from a 2tg useing a modified 2tg manifold.
this can be adapted by cuttin of the bottom tangs off the manifold, rewelding them in the 2tc position and redrilliing the head to sute the upper tangs (look in my ke20 members thread in my link to see how i did it)
i found a good gain in just doin this and ran with it for years.
the other way is to run an adaptor plate with the 2tc pattern in one side and the 2tg on the other. the bolt the two together.

other wise 2t-b setup if u can find one will bolt on. buyin a custom side draught manifold, or there a lots of adaptors out there to run holleys and down draught webbers to the stock manifold.

2) extractors WTF, there is heaps of differnt brands and types out there, most second hand ones are cheap ($50-$100) all of them should flow better than the stock manifold.
i ran a 2'' zorst and it was shit, then ran 2 1/4 and was better but after running 2 1/2 i would say run that if your doin cam as well.
i only ran a single offset straight through muffler at the back.

3) i never ran elec ignition but always was to head in this direction, every motor ive see so far that has changed to elec has ran smooth, reved out better, etc.
cheapest and easyest way to get it i found was to to sorce it from the USA most of there 3tc seem to run them, try and get a tall neck dizzy if ur running sidedraughts as it will fit easyer.

4) ive ran 2tc heads on a 3tc so i cant see why the other would not work, 3tc has no gains in stock form as far as i know.
u can get a 2tc head of a early motors 71? and they have larger ports.

OTHER THINGS TO DO
running a 3tc motor.

shaving the head will give u small gains. (high comp)

running a little more fuel and advancing the timeing also.

making sure the motor is in good order to start with, valve seats, compresion, valve clearences, etc.

cam with intake and zorst will make good gains, cheap and easy way is to ring wadecams and get them to regrind your stock cam to better specs and run valve springs to sute.

i wouldnt bother about 2tg gear, not a cheap and easy way to go, and a 2tc is so much cheaper and easyer to work with.

or there is cheap turbo setups, ive ran suckthrough, blow through and efi. buy far efi was better but cost more to setup,
ive made setups for under $300 runnig suck-through.
im running 10psi on a old (very) worn out 3tc motor for a daily driver for unto 2 years now and it will not die.
ive also ran it up to 25psi plus with out fault(for a sort time), and 20psi running the $300 suckthrought setup.
no point talking more turbo setups yet unless ur lookin to go that way.

read through my thread and there should be lots of helpfull info for u.
it always heaps with costs if ur handy at making things ur self.

also 3tcgarage is we i always go for any t series help, parts, info. they love them ova in the states.

i could keep goin on and on, so any thing u want to know ask away.

hope this help you out.

cheers, dan

[Turdinator]

Ah guys i think you'll find that all T series engines run the same exhaust bolt pattern from the 2T to the 3TGTE. So the turbo manifold from the 3TGTEs will bolt straight up. The intake bolt pattern is the same between the T, 2T, 3T, 3TC, 3TE, 12T and 13T. The 2TG has a different intake bolt pattern and then the 3TGTE is different again.

See HERE for some comparison pictures.

[Scoobzd]

Ah guys i think you'll find that all T series engines run the same exhaust bolt pattern from the 2T to the 3TGTE. So the turbo manifold from the 3TGTEs will bolt straight up. The intake bolt pattern is the same between the T, 2T, 3T, 3TC, 3TE, 12T and 13T. The 2TG has a different intake bolt pattern and then the 3TGTE is different again.

See HERE for some comparison pictures.

He's right !


Eating dinner atm but wait for a post in the Tech Section soon

[caferacer]

Well thanks everyone. This is a great forum very helpful.

After reading all the replies and doing a little more research I have bought extractors and on the lookout for a weber carb. We have a spare engine that supposedly has around 50 k and will put the gear on this one. Still a 2T same as the original which we will pull out and keep as a spare and maybe do up later.

Question because the engine is sitting on the floor and no flywheel is it ok to measure compression just by turning over at the front pulley. Will that be accurate other wise my take the head off and have a better look and well if going that far could take the sump off.

Any views on this.

[toyboyracer]

Slap on a gearbox and starter , battery and get it spinning with all plugs out - Easy as

[Silly Rabbit]

..try this for a performance upgrade

http://cgi.ebay.com.au/TA22-T18-2T-3...item3a5c85b014