Turboed 4AGE

[CAMB01]

I'm currently building a 4AGE turbo, and am needing information on what turbo to purchase, and where to purchase one from. Also fuel pump i can change to.
Cheers

[Bazda]

what is your budget??
normally people go with a t25, t28, tdo5, or a t3/t4 seems to be the best option. People usually buy them from being advertised somewhere or a wrecker.

fuel pump, a rx7 turbo FC3S fuel pump is pretty cheap and will easily do the job up to 300od hp. also from adverts or a wrecker.

[strap-on]

if your not converting from a gze, then it might be an idea to get a hold of the 4agze injectors as they are bigegr than the n/a injectors

[GOLDAE86]

Its a waste of time building a turbo 4age without a gze bottom end.It has been done before and has worked but not as well as a a 4agze conversion. If you want to do it properly i really suggest you find a gze block and go from there. You can use a 16v head but we have all used 20v heads as they flow alot better when turbo'd. We use the subaru VF24 turbos.The motor that i built for a friend is putting out 250hp at the wheels and is driven every day.

[Grotty]

Stock Bluetop turbo is mint to drive, very quick reving very quick pick up!


I daily mine...

20v

[Bazda]

if u run a 20v head, do u have to have a aftermarket ecu? even if u use a single thorttle body ?

[EVLGTZ]

yeah, must say all depends on what ya want.

if want low boost application say 14psi or under I'd stick with a 4age, run std compression but use aftermarket ecu to control timing and fuel.

If want more than this then go ze but both setups work well if ya know what ya doing.

As for turbo type, theres plenty of options. Most common are garret style like t25, t28, t3/4 etc, but all comes down to what you have available. Plenty of cheap turbos floating around. Just make sure in good condition and then get manifold built to suit.

Std bluetop fuel pump has been proven for over 170kw@wheels but would advise upgrading if got the $$. good cheap option are the VL turbo fuel pumps. Can go either internal replacement or external with surge tank setup.

[Mr Revhead]

waste of time building a turbo 4age without a gze bottom end

only diff from redtop 4age and silver top 4age bottom end is the pistons.. which are a lot cheaper than a 4agze....
crank and rods are the same. note ae92 and ae101 had different rods though with the ae92 being rater chunky

[GOLDAE86]

i thought that 16v cranks and rods were cast and the 20v crank and rods were steel. 16v crank journals are larger than 20v journals that is why when turboing a 4age it is best to use a gze block, crank and rods, but when working to a budget u can use wat ever you want. I just like to do things once and do it properly thats all. And for the computer question you can use an after market computer or just use the gze comp....Good luck with your project.

[Mr Revhead]

i thought that 16v cranks and rods were cast and the 20v crank and rods were steel. 16v crank journals are larger than 20v journals

um. no.

there are 2 cranks only for the 4age, they are both forged steel.

ae82/aw11 40mm journals

everything else 42mm journals.

all the rods are forged steel as well.
http://forums.toyspeed.org.nz/viewtopic.php?t=21970

see that for more info.
basiclly there is no difference between 4age/4agze rods and cranks. but there are a coupla different types that can be in either

[CAMB01]

I have a silvertop 20v bottom end. Am fitting 0.5mm oversized forged 16v pistons, as i have a 16v head, i don't care about what flows better as the head is being ported and polished. Might look for a GZE crank, but might shotpeen the 20v crank and rods, and have them balanced (One advantage of working as a motor machinist, machining is free and parts are cheap).

Will be going to an aftermarket ECU and injectors.
Should be finished in about 10 months.

[kingcorolla]

i just got my 16v shortblock back from the reconditioners..
its had $1g worth of reciepts/parts (im not gonna list) because i plan on just a strong performance NA engine.. for now, also i am safe to go turbo later, hence the current prepping. I am also keeping factory compression (9.4:1) so if turbo'd later, i can run up to 14psi safely.

[Mr Revhead]

Might look for a GZE crank

youv already got one... 20vs have same crank as 4agze

[4ageturbs]

i have 3 93 gtz pistons

[EVLGTZ]

i have 3 93 gtz pistons

congrats

[Drifter4ag]

i have four 93 4agze pistons not blown up

and about 12 blown up redtop pistons
and about 8 blown up bluetop pistons

[CAMB01]

Well i was going for 0.5mm oversized forged pistons, not GZE pistons that are only ceramic coated.

[pidge]

Well i was going for 0.5mm oversized forged pistons, not GZE pistons that are only ceramic coated.

*sigh*

4AGZE pistons are "hot forged" pistons, so are denser and stronger than cast pistons, but not quite as strong as cold forged. There's a lovely picture of a sliced standard 4AGZE piston showing the grain structure of the piston, proving that it is forged.

The ceramic coating helps reduce the heat transfered into the piston crowns i.e. keep the piston crowns cooler.

Oh, and the late blocks have oil squiters (definitely 4AGZE, I think the 20V ones have as well)

[4ageturbs]

i have four 93 4agze pistons not blown up

and about 12 blown up redtop pistons
and about 8 blown up bluetop pistons

impresive

[Mr Revhead]

hmm reading his sig i can see why hes got so many blown pistons!