Engine choice - Cant Decide

[Maverick]

My choice would be the 3tgte, solid motor and the potential to make good power. Nissan motors belong in Nissans bud.

[Kedderz]

3t, old tech, but any turbo motor is always good. Age of these means you will have to rebuild said motor, and then you can go forgies etc and therefore high boost!

4agte, always a favourite and will be nice in the ta22.

please keep it yotatech!

[GEMTA22]

SR20 are good for around 250rwkw on stock bottom end and are as pleantiful as a ca18.
SR20 are not much more expensive either only around 1 grand difference.


The CA18DET is about the size of a 4A-GE. It’s a little taller due to its longer stroke. In any case the CA18DET is dwarfed by an 18R-G which was a factory option in Japan for the A20/22 chassis. SR20 Physically quite a large motor for a 2L (about the size of an 18R-G). Its a alloy block however so actually weighs about the same or abit less.

Hence the size difference im leaning towards a ca18det.

[GEMTA22]

kedderz can you still get forged internals for the 3tgte motor ?

[oldcorollas]

T is old. can still get parts, but some parts are just exxy.. like top chain guides etc... whereas 4A is still "current"

plus T will not be quite as efficient as other 2 motors...

[Kedderz]

If your willing to pay, sure. People even make forged internals for the 1g

[Smokey228]

I see your arguments and they are valid, ofcourse a toyota with a toyota motor is a good idea, but toyota never really came out with anything strong in the 4cyl market... not that competes with nissans sr20 or ca18det...

The 4agte is a good motor, and can compete with a ca18, but not with an sr20.. The 3s will compete with an sr20. But if you have a 10k budget and throw the same amount at both motors, i'd dare say the sr20 will walk away infront...

Dont get me wrong, i love my toyotas, but lets admit, they havent done everything right their whole existence... We are in the end, enthusiasts and surely we can appreciate what other manufacturers have done?

Cheers,
jase

[Kedderz]

mate all things being even yes, the sr20 would be the way to go. but this is TOYMODS after all, so all opinions are biased

[Smokey228]

Haha, this is also true

Oh, and sr20s will make quite a bit more then 250 if pushed... I think 250 is a reliable figure... I know of an sr20 that had a t88 and antilag most the time and lasted around a year with stock motor and head with gears...
Another mate with s15 makes around 270-270rwkw with smaller turbo, but all supporting mods inc cam gears and possibly cams... all else is stock...

Cheers,
jase

[GEMTA22]

Custom made piston, rings, rods for a 3tgte what would i be looking at cost wised and who would do it ? I read some specs of 3tgte that mentioned it had arias pistons and rings cant remember where tho.Best bet is to get a safe tune of 150 rwkw which should be fine for the 3tgte. How about water pumps and gaskets and what not can't get them custom made ?

3tgte experts your thoughts ?

Now you guys are leading me towards a sr20 rather than a ca18det. Virtually the same cost for either conversion id imagine. As there is only about 1k difference between the price of the engines.

[Kedderz]

theres quite a few 3tgtes getting around canberra who are "built". one is pushing 220rwkw. do some ringing around see what you can get your hands on!


edit 150rwkw should be achieveble at a reasonable boost level of 12-14psi

[TurboRA28]

T series is difficult being old, not much support at all, heavier, bigger, etc. Also i've found it is almost as easy to make power from the 1.6 4agte than a 1.8 3tgte.

[GEMTA22]

turboRA28 -Yeh thats due to effeciency of the newer engines, poor old 3tgte is struggling to be as effecient. What ecu did you use for the 4agte setup ?

Im leaning towards getting a CA18DET engine / gearbox package with good compression and stock turbo in good shape will not cost much more than $2000. Toss in an Xtreme 5 puck clutch, the stock radiator will be fine before i upgrade and a intercooler out of an Evo or something. Setup would be good for 150RWkW total. Then when if i get bored chuck a garret GT2871R , powerfc, newer intercooler and be good for 200rwkw.

[Smokey228]

Gem, your right on with the ca18, my only question is, are they a cast iron block or alloy?

The size is one thing, but weight difference between the ca and sr? I'd imagine if the ca is cast, then the sr will be lighter, even if its slightly larger...

Plus, 150rwkw is good, but sr20 with 150 and a ca with 150 will feel soooo different

Cheers,
jase

[hosking1991]

Ca18 cast iron block

Check my sig same applies to a ca18

but in all seriousness id pefer a ca over the sr the sr has a gay hydrolic rocker assembly that doesnt like high revs (there was a certain model sr20 with solid rocker assembly which is much better for high revs)

where as a ca18 is a nice cam over bucket setup and 8 inlet ports