2TGEU Double valve spring compare-o'

[suberimakuri]

Anyone able to please measure some of these springs up?
Interested in the outside diameter and free length(not compressed).

Cheers...

[Logan]

Hi Karl,
I can do this tonight for you, can also measure 3tgteu ones if you wish and grab the factory specs from my toyota service manual if you want..

Logan

[suberimakuri]

cheers logan...
I'm trying to see if they can be used in a 3TC head....

[Logan]

lol, figured as much. after seeing your farewell to oldcorollas and a quick browse thru gargiedori and 3tcforums..

[Logan]

47mm or there abouts

[fangsport]

Karl, what necessitates the need for doulbes in these engines?

the guy who does my head work is of the reasoning that doubles will shut the valves better, but the gain is out weighed by the extra effort on the cam top open them.

the new head will have singles(like the current one) but larger valves .

[suberimakuri]

Cheers Logan.

fangsport:
Just curious if a cheaper option is available then buying springs.
What motor are you playing with?

But... they're only $100 or so, so I'll probably just buy them.

[fangsport]

one of those dirty old cast-block ,alloy-head ,push-rod 3-T's.

what else gives good bottom end for rallying, can be screwed to buggerry for tarmac and can be relplaced/rebuilt for less than a 24-pack (PS is also legal under SI classic rally rules without going to a BDA!)

[suberimakuri]

Cool.. same as me it would seem.
I've created www.toyota3tc.com and there's some great info from some american fellas on there now.
80,000 hits in 10 days, and 63 registered users....

[fangsport]

the site looks good.
so someone has finally realised what i've been trying to tell the loyal twin-cam brigade for years.

i will have to drop some tid-bits of info your way , as it will only fall on deaf ears in here as the T series is missing at least 12 valves (for a bloody good reason)!

[suberimakuri]

haha....
I've almost done a full circle.
Had a 2TG in my KE35...... then a 2TGEU.....
Had a whole raft of bits and few sleeved 3TC blocks...
Then 4age, then 4age turbo.... yada yada.

Now 3TC... but i'm big on injection (20v quads it seems will be the way i go). No point in using the twin cam head I reckon..
Anyways... always keen to hear, or jump on the forum...

[fangsport]

damn ya, i'm trying to register but someone keeps replying to my bashful comments!!

[fangsport]

my first corolla KE70 had the 13-T in it (it was Matt Dunn's dad's club car for a while). i tried to modify it myself but being a lower compression engine with heaps of emmision crap on it , it gave up the ghost soon after. i then brought a (seemingly)re-conditioned engine from the wreckers, had it stripped, rings/bearing etc, the same cam but with head work and a few other bits.
that was 12 years ago and was only pulled apart 3 months ago as the bottom end was getting a bit sad. the moter has been neglected, abused, thashed and generally given arseholes for that time.

[suberimakuri]

heh.. cool.. see you're sorted now..

[matt dunn]

my first corolla KE70 had the 13-T in it (it was Matt Dunn's dad's club car for a while

Was that the old white turbo dx?

Know where it went to after you?

[suberimakuri]

what does your head man do to it?
I've heard a few things.
1.) I've heard of epoxying the inlet ports up a little.... (Airflow design)
2.) porting it out to be the same size as the valve....
3.) grinding the exhaust humps out (if not drilled and tapped like one head I have).
4.) leaving it standard, to keep velocity up. (Mototune)

[fangsport]

where most of my ex-girfriends end up











dumped.

[fangsport]

the ports were matched t the gasket, getting rid of the funny little square notch in the inlet, and virtually losing the bump in the exhaust.
if your head has the hole in the exhaust drilled, tapped and exiting from the combustion chamber, melt it down to make manifolds.
the 2/3T inlets can be easily adapted to interchange manifolds i.e 2Tb carbs onto 2tg, 3-t injection onto 2tg , i was using an avenger sidedraft manifold on my 3t as it came with the carbs and port matched (well, nothing a 12mm aluminim plate and a die grinder couldn't fix!!).

for huge bottom end, try a dual sycro 40/40 downdraft weber on an opened manifold, but make sure the fuel snout is secure to the carb body or your car will go on fire (not that i'd know, EH Matt)

[suberimakuri]

cool.. cheers.
I've got a bit of an article going about 3teu and 2tgeu manifolds which covers the different bolt spacing.
all on toyota3tc.com

[Logan]

2t & 3t, free length 42.1mm (1.66 in.)
installed length 37.7mm (1.48in.)
installed load 26.3kg (limit 23.7kg) (58lb-52.3lb)

2tg,
outer
free length 47.4mm (1.87 in.)
installed length 39.0mm (1.54in.)
installed load 23.7g (limit 21.8kg) (52.3lb-48.1lb)


2tg,
inner
free length 45.9mm (1.81 in.)
installed length 36.5mm (1.44in.)
installed load 7.3g (limit 6.7kg)