4agt/ze Engine balancing and building?

[crnkin]

Hey guys, finally aquired my super setup, wicked rods, high comp 4agze pistons, retopblock with squirters, smallport head, and external ancillaries.

What i want to know now is who in what area has had their engine balanced and/or built buy who, for how much, and what their reccomendations are?

The engine only needs minor balancing, ie crank+flywheel lightened, de burred and balanced, rod and piston assembly deburred and balanced, anything else?

Then i want the head p+p'd with larger valves maybe and flowed/tested to 1600cc specs.

Glenn dont know it yet but i was gonna ask him to help, but before i do im gonna do my research first.

The engines goal is 250kw atw MINIMUM with 275 kw atw being ultimate goal. As far as i can gather this is around about 350hp atw and around 400-450 at the fly.

The boost pressure will be somewhere between 20-25psi max, i assume 22psi will bring my goal as 24psi on low comp is about 350hp atw.

Ive been trying to read flow maps etc, and from what i gather about 22-23 psi is the most efficient range for a skyline t3 and rx7 HT18s hybrid, so that should be the turbo used, and injectors flowing 440cc may not be quite enough, so perhaps 550cc rx7 injectors?

Please shed some light oh toyspeed gods, thanks!

[CAMB01]

Have a talk to Kerry at Kerry Lindsay Engine Reconditioners.
I have to say that coz i work there.

[Bazda]

thats alot of horse power for that smallish turbo...
The guys in aussie only making that with huge turbonetic t3/4s running 25psi+ and 20v heads.
That is kinda my goal power range and im 1800cc using a turbo with a 83mm comp wheel and a 72mm exhaust wheel...
If u can get that hp i wonder what im going to get then......

I dont think you woudl need to get it balanced, the rods if aftermarket forged ones shoudl eb balanced when they make them, and toyota pistons will also be balanced from factory.

maybe if u had a crank grind or something then you woudl need to balance the crank, unless ur running a different fly wheel..

[RomanV]

Yeah, thats seems like a lot to ask from a 1600cc engine.

To get 225kw at the wheels, you're gonna have to make at least 375hp at the flywheel.

Which is quite a lot.

[Mr Revhead]

yeah i know of a fairly good 20v turbo making around 3-330 at the fly on around 20ish psi.... quite low compression though.
what cams you using?

[Bazda]

My last car we figured was making 300hp+ with the standard ecu, as my old mans escort was making 285hp at that time and with a 100kg lighter car. We were very similar in a straight line I had a bit more puff up high having such a big turbo , but he had more torque down low.

Maybe if u put cams/vlave springs enough to rev it to 9000rpm and a lynn rodgers $2000 head job + a turbo bigger than a t3/4 you could be looking at 400hp+

[Drifter4ag]

my standard bluetop made 176kw@wheels with HT182s combination turbo and 9.2:1 compression ratio on just over 14psi .. so im guessing that with the turbo rebuilt and and engine that can handle it you should be able to hit 220kw with that turbo on about 20psi ... with some cams etc .. the engine i have in the build will be around the 220kw@wheels figure so see how we go.

[CAMB01]

What wud i need to do to get 300hp atw.
I'm currently building up a 4AGTE for high hp.

[AE86fan]

Im just finishing a build to simular specs but with a RNN14 T28. I found the gze pistons all weighed exactly the same to .5gms which is bloody good from factory. With a good set of scales and a bit of time its not that difficult to get pistons and rods weighing all the same.

[crnkin]

my standard bluetop made 176kw@wheels with HT182s combination turbo and 9.2:1 compression ratio on just over 14psi .. so im guessing that with the turbo rebuilt and and engine that can handle it you should be able to hit 220kw with that turbo on about 20psi ... with some cams etc .. the engine i have in the build will be around the 220kw@wheels figure so see how we go.

Exactly matt. Big turbo does not equal big power, 5 valves per cylinder doesnt equal big power, low comp DEFNITELY does not equal big power.

CAM01 whats your name? and where is this engine recon place?

as for balancing, the closer to balanced the better, and the rods will need to be de burred, secret spec hehe NOT. And the pistons together with rods if each .5g out each way equals a 2g difference, ie too much.

I know of a stock ht18s on a 4agze running 240kw atw, on low comp, its already been done, and im running high comp= high power

ummmmmm where next... roman v- 450 flywheel is the aim

mr revhead- thats what im asking! what cams?

and last but not least, bazda, for a 2g headjob id expect new everything, and the whole head would be a valve! (they can flow about 800hp on a 7agte)

Turbo wise- i already know the t3/4 will flow over 550 hp at 25+ psi on a 1800 with medium comp.

So thanks all you guys for the comments, yes it will work, yes that power is acheivable, but can anyone answer the questions?

(comments are cool too but dont doubt it )

[crnkin]

yeah i know of a fairly good 20v turbo making around 3-330 at the fly on around 20ish psi.... quite low compression though.
what cams you using?

thats with a tiny t25 and low comp too

[crnkin]

What wud i need to do to get 300hp atw.
I'm currently building up a 4AGTE for high hp.

bluetop, t3/4, vr4 intercooler, gtr injectors, link computer. thats all. 300hp is sweet- ask matt or any garage dori boys

[Bazda]

hmm i aint touching the head on mine, but i wouldnt think I would get any more than 400hp....thats running with an autronic and be tuned on Lynn rodgers engine dyno.

what hp does the speedtech dx run?

[matt dunn]

yeah i know of a fairly good 20v turbo making around 3-330 at the fly on around 20ish psi.... quite low compression though.
what cams you using?

thats with a tiny t25 and low comp too

T28 I think, and the silvia one not the GTiR.

[IH8TEC]

hmm i aint touching the head on mine, but i wouldnt think I would get any more than 400hp....thats running with an autronic and be tuned on Lynn rodgers engine dyno.

what hp does the speedtech dx run?

500ish hp

[Drifter4ag]

nzpc at one stage said that speedtech thing was pushing like 550+ on andres dyno ... .. dunno if that has any cam shafts or anything but running a GT40 turbo or what ever it was then i would expect some big numbers from big boost.

But if you going for balance.. then i would hit lyn rogers up hes the man
440s will be dying out over about 190w@wheels .. so i would def start with 550s if you can get them
i would be inclined to go with a big port head but im nuts ...
not sure what limits are for flow on stock intake manifold but
dudes in the states are still using them with close to 400hp

balance from lyn if everything is cleaned and ready is about 300$ but you may as well get him to assemble the whole bottom end

or it might be $500 .. i cant remember .. i think its 500

[crnkin]

Thanks heaps matt, you have his contact details?

[Bazda]

114 Vincent St Howick Auckland 09 5343363

You should put your engine on his dyno when your done, nice accurate reading and a very nice piece of machinery it is!!!!
Takes only an hour to tune an engine using autronic!

[Mr Revhead]

if i was you id call him asap, hes pretty busy at the moment so maybe booked up for a while

[Bazda]

he is booked for months