getting more power out of a 2T-C

[EldarO]

boat anchor jokes aside, lets say, for the purpose of this thread, that i need to retain a factory motor in my TA22 to be able to qualify for racing in a certain class, and 2TG's are ommited as well (thank fuck, they're horribly overpriced).

obviously i need to make the motor breathe better, so i was wondering.

as stupid as it sounds, does anyone do anything off the shelf for the 2T? i was thinking a cam, extractors, better carby (old one is shagged anyway)

etc.
etc.

yes, i am serious, and i know those 3TC fellas are pulling some bullshit power out of them with some serious work.

i want about 90 odd rwhp, i dont think thats quite unreachable? or am i seriously over-extending my aspirations?

keep in mind, if i cant get a 2T up to scratch, my partner in this little race car project has decided on a nissan heart, cause the spare 3S we have is too much effort to make into RWD.

[w810sc]

I've been told stories of a 2T motor used in a sprint car:
- high compression 12.1, sleved to decrease the bore size i think around 84mm as they have strict guidelines to follow in that class ie: must be less than 1578cc (or something like that)
- roller rockers with needle bearings
- gear drive that replaces the lower timing chain
- windage tray
- double valve springs
- hardened push rods
- forged combinations
im sure theres more
yes there are off the shelf parts for the 2T, one of my plans where to build a tough 2 liter 2T in sleeper form.

there are also:
efi intake manifold (original or aftermarket)
Pistons
Rods
Bearings
ARP
Valvetrain
Camshafts
Wet/Dry Sump
Timing Components
Billet Main Caps
Pulleys

what you have mentioned above is a good start "i was thinking a cam, extractors, better carby". you may also want to look in porting the head and boring the block for some gains.
btw what form of racing are you planing on doing drag/circuit?
fonz

[jezza323]

2t-c's were often used in formula cars from the 70's, perhaps check out some of those, and find someone who built them

parts are easy to find in the US as 3t's are so popular

i would be going with.....shaved & ported head, bore it out, big cam, twin DCOEs or quad throttle injection, remapped dizzy or ECU controlled timing, light flywheel and you will be away

[Rodger]

Check the xT dyno thread for details of a couple of 2Ts.

My mild 2T gets 86rwKw == 115 hp.

Check BRD Racing for 2T stuff. Take advantage of a strong Aussie dollar.

http://www.brdracing.com/

Add dual 40 or 44 Mikunis on a manifold to a selection of parts from above. Can make more than my 115 very easy.

Regards

Rodger

[EldarO]

fuck yeah

just the info i needed, cheers fellas!

i dont wanna spend bucket loads on it, as its just gonna be a motorkhana/hill climb thrasher, i dont even wanna be competitive, just enough power to have some fun.

looks like the plan is to rip the head off, get it ported and cleaned up, have the block bored out, sort out the dodgy carby and see if i can find a cam!

thanks fellas!

[jezza323]

u will probably find the carby to be quite a restriction

you can get an adapter plate to fit a weber 32/36 or 34 ADM (XD falcon carb) on the stock manifold. then just need to bodge up the linkages and tune the jets etc

[Classique71]

go straight to webers , though a single will foul the brake master cyl, if you dont modify the ramflow stule filter , or make your own plenum and filter
Duels for the win , Big bad cam ( i have specs for a 3/4 race cam here ) porting , strengthening , and a good zorrst and she'll kick heads

[o_man_ra23]

Compression, compression, compression. Shave the head as much as possible, being mindful of valve clearancing when the lumpy bumpstick is added. Roller rockers and strong valves, oversized valves, lightweight flywheel, good pistons, porting and polishing, twin carbs or quad throttles (if EFI is allowed).

Basically to get the most out of this motor, you will need as much compression and as many revs as possible. You should be able to get it up to a decent standard just with cam, shaved head, valve springs, exhaust and a decent sized carby though, and decent electronic ignition will help, with a fixed dizzy and computer controlled spark.

Good luck mate, let us all know the results... keep that nissan poozorz outta the car

[EldarO]

i got a mate with a dual carb 2TG manifold, is there any chance in hell of that fitting?

im only asking because i recall someone in the "awesome 2T" head using a 2TG exhaust manifold on a 2T-C???

i forgot about shaving the head down!!! wicked!!!

if i bore it out, what should i do about a headgasket? aftermarket-metal the go? or can you get non-metal ones that suit bigger bores?

[Classique71]

Exhausts are the same , the intakes are different
Redline make a suitable adaptor to make her go duel carb weber side drafts

you could always just use a 3t bottom end , with high comp pistons + cam , and a 2t worked head ..

you will need to tweak up the ingnition sustem as well for higher grunt , youll find the 2t's vac advance is probably shot by now

[jezza323]

the bolt pattern on the 2tg intake is different, but the ports are same AFAIK, so it could be made to fit

[oldcorollas]

turbo
similar to the puerto rico 3TC guys

or.. why not injection? use somw shitty old twin carbs with no chokes as the ITB's...


cam, compression, rpm, and in/ex tuning...(+ EFI) a motor maketh...

[EldarO]

to clarify on the initial post...

i dont mind swapping in a K/3T blah blah

the main purpose was to avoid a nissan motor, ill do anything to avoid it

3T came in the T-18's didnt it?

ive seen those 'rican 3T's some of them are mind boggling :|

i dont mind doing injection, but im trying to keep the budget way down, so if its going to cost bulk to swap it over (+$300) then ill pass, besides, carby sounds the bomb.

i gotta pull the motor in the next few days as its leaking oil like no tomorrow, so i figure ill pull it, get the head shaved by me local head joint (guy there is a top bloke, ive slung him a few cartons for some favours) so that'll be sorted, might try porting it myself with my dremel

as for boring it out, back to my headgasket question?

and pistons? anything i can swap in from something common? ive got an 18RG block complete sitting here doing nothing, any chance? (i know its a stupid question, but miracles can happen)

[oldcorollas]

89mm Venolia VW pistons apparently fit...

[Munki]

As said above they are popular in the US.

3tc forums has a pretty good knowledge base

Daniel.