4AGZE discussion

[reecegze]

i was running my ae86 with a 4agze with fmic behind a s series diff and t50, went well then i converted to an 4agte on stock afm electrics the t50 is holding up well and the s series diff is still going "just" after 8 hard runs last night at wsid. The s series has proved me wrong and it can take a beating.. and the t50 is a good box if you no how to drive and shift properly.

[Gilly]

i actually think the 4AGTE setup is kinder to T50's than the stock supercharger arrangment

instant torque kills boxes, you can generate boost in neutral with a ZE :lol: so they hit pretty hard straight away whereas the spooling nature of the turbo means the torque is somewhat more progressive as it builds later in the RPM range.

good advice r.e diff gears, i would have thought 4.3 would be acceptable but i have already got a 4.1 and am not paying to experiment with such a small difference as a 4.3 anything over that would as said earlier be too far off, they aim for the wrong rev range for the lowdown characteristics of the ZE

new point to raise

intercoolers and piping layouts

i want to run a midsize cooler with inlet and outlet both on the same side (drivers) to keep the piping short. even had the thought of a squarish sized cooler with the conventional east west inlet/outlet layout but mounting it vertically so the inlet to the cooler would be at the bottom of the rad support and close to the S/C outlet and the cooler outlet would be high and close to the engine inlet piping

further discuss

p.s this thread is most enjoyable

[ke70dave]

hey gilly have you thought of just mounting the stocko cooler (the topmount square one) at the front of the car? seems to be a relatively ok size

only think I'm not sure how the pipes go on stock gze intercoolers

edit: just read above, and apparently people have had bad experiences with them

other options could be just a stock skyline side mount? i hear the R34 stock mounts (GT-T) are good for some excessive amount of horsepower....

[v-tec]

<div class='quotetop'>QUOTE </div>so I'm guessing you don't rate the standard coolers, forgive my confusion but why did it get heat soak from being front mounted? too close to the radiator or something?
I would have assumed it would be more air flow than the conventional fwd setup.

I'm also interested as Gilly as saying on having coolers inlet and outlet on same side for smaller piping.
I dunno how well a north south inlet and outlet would go, anything wider (in this case taller) than a foot would probably require too much bending in the piping... id like to see the idea tried tho

Gilly i got a pic I'm about to post in ur other gze thread

[Todd]

i would love to see some pictures of cooler pipe layouts within the engine bay and rough sizes of coolers as I'm thinking i will just front mount the stock top mount...

[Gilly]

a small stock cooler off something else may be better suited

i remember an old soarer had a thick brick like cooler that was supposed to be a good unit, would be interested in hearing of other "stock" units that could work ala R34 gtst option that Dave mentioned.

[Todd]

at one point i looked at aristo coolers, they are larger than gze coolers although are still pretty confined (they are thick instead of big).

should be able to pick up stock coolers for free

[Gilly]

noted

cleverly ducted, i don't think thickness is a problem, i 've seen compact coolers work well given a good feed

sounds like a import wreckers trip is in the works haha!

[Nikkojoe]

<div class='quotetop'>QUOTE (Hen is a total nutcase @ Apr 24 2008, 03:18 PM) </div>I don't think they are that bad. I know someone who ran pvc for the time being with a stock cooler as a front mount. The PVC after the charger melted after 3 hard laps, and the pipe after the cooler was perfectly fine. That said, I couldn't tell you what the intake temps were, might have still been high. But my main point is that not to go too overboard with cooler size, they really don't need it. I am more concerned with the number of people I have seen just running a bridge pipe from charger to intake manifold and even running more boost than standard. To me, that is just plain stupid, but repsonse is awesome LOL. If you can't afford a proper cooler, use atleast a top mount in front mount form. On the gze using pvc, the pipes were made very short, kept around 2" and I saw no signs of hunting idle.

With my current piping and cooler setup, the reponses is pretty bad (mainly due to length of pipe and size of cooler - see my build thread). I might notice the repsonse is crap more than you might due to the fact a lot of my intake components and the head are ported out a little more than standard, just setup for more air which the sc12 can't do. Due to all these large volume bits in my setup as well as the lengthy piping, air velocity would be slowed down a lot. To bring it back up, you would want smaller pipes, but that aint gonna do too much good and probably just restrict air flow.

Anyway, i might just be rambling on about random shit, but that is my experience so far

[Gilly]

plan to use the bigport T/B upgrade and keep all piping that similar size, no need to go any bigger IMO, response is the key

i see you reading D

input stat!!