4age, 4agze turbo thread (General Discussion)

[slighty_sykotic]

Yeah, probably w2a,


OR, i may flush mount the cooler into the boot lid, with a small (like the engine grill) scoop over it. Then just run the pipes from engine bay to the boot and back.



And about the pump, sorry, i forgot to put that on, have a evo 6 pump. Should be good for a bit.

[bluemaumau]

ive always wondered about w2a on mr2s, do you have to run the pre rad all the way to the front? surely not?

[Caveman]

ive always wondered about w2a on mr2s, do you have to run the pre rad all the way to the front? surely not?

why not? just run it with the engine coolent lines and mount a prerad instead of the ac

[bluemaumau]

i duno just seems to be alot of lines, coolant, problems i guess.


hows your thing goin man? need gze pistons yet?

[Caveman]

nah dont need gze pistons but we'll see after a few more track days just got new clutch, new race pads, high temp brake fluid and semi slick tyres

[bluemaumau]

badass, i just got e58 heavy duty clutch and p plate, bluetop cams!

but yes yours is turbo

[IH8TEC]

nah dont need gze pistons but we'll see after a few more track days just got new clutch, new race pads, high temp brake fluid and semi slick tyres

get some better suspension man. i sure as hell hope you having been racing it with that suspension you had when i popped around last

[no_8wire]

ive always wondered about w2a on mr2s, do you have to run the pre rad all the way to the front? surely not?

Im running all the way to the front...its where the air is so thats where you put the rad!

Plus the fact that the longer lines you have you have more coolent to boil...

[Crucible]

38mm wastegate (probably just a ripoff, i sold my tial )
50mm BOV (modified rip off one)

They are fine, you may need to just mod the spring to make it a bit more responsive. I had to as I was still getting slight comp surge.

New G3 link LEM and LC1 wide band oxygen sensor setup.

Why are you buying an LC1 with a g3 for may I ask? Just that Im going to go with the g3 also...

Aiming for 200kw at the wheels, at about 20psi.

yeap that seems to be the benchmark everyone is aiming for, the race for 2 hundy atws, lol

[slighty_sykotic]

Should get 200kw pretty easy, my last one was shitty compared to this one, and i was still getting 150ish, on 10psi and tiny turbo and low compression.


Um, getting a lc1 so that I can semi tune/keep a eye on the air fuel ratios. Cheapest and best way to do it as far as I know, plus the link can directly talk to the lc1 if I want to hard wire it in.

--Sykotic

[Caveman]

nah dont need gze pistons but we'll see after a few more track days just got new clutch, new race pads, high temp brake fluid and semi slick tyres

get some better suspension man. i sure as hell hope you having been racing it with that suspension you had when i popped around last

nah my old suspension was crap, lowered on its arse with shitty shocks.

im running trd coils with standard replacement shocks now

most people who race at club level just run new shocks and stiffer springs, nothing wrong with it, although most prefer adjustables shock rates I cant afford them yet... might make a set of camber plates and get some nolothane bushes in the near future.

come to pukehoke next satuday, bazda was saying we should all go for a cane, i agree, ill be there anyway

[IH8TEC]

this saturday we going to manfeild for whittika's classic car meet, his old man's racing the escort. but if you mean like the 18th or 19th i'd be keen aye. what would we need to race? i got fire extinguisher, cotton overalls and could borrow a helmet.

be good with the drags on the 17th

[l1ttle_d3vil]

quick question - i know a higher compression is better for a turboed car; I don't know the technical details of why or anything...so will a turbo run fine on standard compression of an aw11 4agze? (which is 8.0:1)

is this compression going to cause problems, or is it just preference to run turbos on higher compression?

[~SlideWays~]

quick question - i know a higher compression is better for a turboed car; I don't know the technical details of why or anything...so will a turbo run fine on standard compression of an aw11 4agze? (which is 8.0:1)

is this compression going to cause problems, or is it just preference to run turbos on higher compression?

No no you've got it the wrong way around.

N/A needs high compression to make power.
Turbo runs low compression to help stop detonation.

You CAN run high compression and a turbo but will be limited by how much boost you can run.

8:0 compression just means the off boost response will be a bit a-rse but then you can run stupidly high boost (with the same stupid amount of fuel).

The 4agze was 8:0 compression because toyota wanted the engine to go for ever, you should note that the later ones were 8.9:1 and made more power but just as reliable.

I'm going for 8.9:1 compression on my new engine because I want the best spool possible and off boost response.

[l1ttle_d3vil]

hah stupid me, i remember it that way now
how much difference is it? i'm currently running a bluetop engine (9.4:1 IIRC), will there be a really noticable difference if I swap to 8.0:1 compression? the car would probably be used around town quite a bit too, so i won'd be at high revs or on boost all the time.

is it really that noticable, or is it just if you're really picky...

[~SlideWays~]

hah stupid me, i remember it that way now
how much difference is it? i'm currently running a bluetop engine (9.4:1 IIRC), will there be a really noticable difference if I swap to 8.0:1 compression? the car would probably be used around town quite a bit too, so i won'd be at high revs or on boost all the time.

is it really that noticable, or is it just if you're really picky...

It will have bugger all torque and less fuel economy, not that the bluetop had any torque anyway lol, so go for it.

I assume you are going to run a gze or aftermarket ecu though?

[flygt4]

lowering the compression with the gze piston gives you the ability to make more than 135odd kw on the bottomend without things going pearshaped.
low comp means you can cram more air in via the turbo but if you want a responsive engine you can probly make similar power with an n/a bottom end on bugger all boost.

think to yourself about how much power youd like to make and then choose your setup to suit.

[l1ttle_d3vil]

It will have bugger all torque and less fuel economy, not that the bluetop had any torque anyway lol, so go for it.
I assume you are going to run a gze or aftermarket ecu though?

yeah, I will be running a link.

i don't have any sort of set kw in mind. originally it was just a 4age n/a transplant, but the 88kw has got a bit boring now so upgrading...no doubt I will upgrade again after I get bored from this too
ive got a vf10 turbo sitting in the shed at the moment so will probably run with this for now. would 120kw - 140kw out of reach for this sort of turbo? and on the gze injectors? somewhere around there would be the ideal power to start with I think.

basically the reason I was asking is I can get a aw11 4agze for a really good price, but just wondering if the trade-off of lower compression is worth it or if it matters. sounds like it won't matter too much plus I could always raise the compression if I really wanted anyway...

thanks for the advice so far

[crnkin]

vf10s are meannnn bangin

there was a guy in palmy cramming 15psi into a stock smallport (10:1 ftw) on a vf8, with the right fuelling, and made 210kw atw. The dyno sheet was floating round a year or so ago.

You can run as high compression as you want, but will need to increase the quality of the fuel as you go, the amount of fuel, and most critically, the timing.

And obviously, 9.4:1 on cast pistons is different to 9.4:1 on forged, as does ring land design and again, critically, oil control orifice design (go for holes, not slots. theres lothss of slothsss in laths vegaths)

[~SlideWays~]

It will have bugger all torque and less fuel economy, not that the bluetop had any torque anyway lol, so go for it.
I assume you are going to run a gze or aftermarket ecu though?

yeah, I will be running a link.

i don't have any sort of set kw in mind. originally it was just a 4age n/a transplant, but the 88kw has got a bit boring now so upgrading...no doubt I will upgrade again after I get bored from this too
ive got a vf10 turbo sitting in the shed at the moment so will probably run with this for now. would 120kw - 140kw out of reach for this sort of turbo? and on the gze injectors? somewhere around there would be the ideal power to start with I think.

basically the reason I was asking is I can get a aw11 4agze for a really good price, but just wondering if the trade-off of lower compression is worth it or if it matters. sounds like it won't matter too much plus I could always raise the compression if I really wanted anyway...

thanks for the advice so far

my old setup with 8:1 made 150kw's atw on std injectors and Linkplus, that was the limit of the injectors.

Was only 13psi on a t28 which isn't all the much bigger than a vf10.

You'd easily and safely make 120kw atw.

Plus you could upgrade to many other subaru turbo's

Actually why don't you just turbo the bluetop and use bigger injectors with the link?