Specs on AE92 wagon - Toyota Nation Forum : Toyota Car and Truck Forums

87GTS · 10-20-2003, 11:03 PM

Hey, can any of you guys dig up any specs on a 88 Toyota Corolla wagon? thanks!

toyotaspeed90 · 10-21-2003, 12:05 AM

1.6L dohc (not a twin cam) 4a-f, about 100hp at the flywheel, carb (meaning, non fuel injected) engine

probably a 18.2-18.5 or so 1/4 mile time

***Chris Corolla S*** · 10-21-2003, 11:27 AM

Quote:

Originally posted by toyotaspeed90
dohc (not a twin cam)

WTF is that suposed to mean? Dual Over Head Cams but not a twincam? Twin=two=dual. What am I missing here?

87GTS · 10-22-2003, 12:21 AM

Ok thanks for that, how about weight? Also would it be a good candidate for a 4A-GZE swap? Would it be a direct bolt in?? If so do you know any sites out there that people have dropped a 4agz in a AE92?......thanks

***Chris Corolla S*** · 10-22-2003, 12:34 PM

Quote:

Originally posted by 87GTS
do you know any sites out there that people have dropped a 4agz in a AE92?......thanks

http://www.soniccreation.com/

toyotaspeed90 · 10-22-2003, 11:40 PM

ok... a twin cam means that both the cams (intake and exhaust)are designed the same... in the case of a toyota F series head, they are NOT the same......

first off there is only one cam gear running on the belt.... the second cam is running off of the cam that IS running off the belt (don't believe me? look on a 4a-fe, you'll see one gear... then open the oil cap and you'll see the other gear... under the valve cover).... so that alone makes you realize it's not a TWIN cam (because, obviously, they aren't the same)

also, since a twin cam has both cams that run off the belt, they both run in the same direction... but since the 2nd cam on an F series head runs off of the other one, it rotates in the OPPOSITE direction as the cam running it (the only way for the teeth of the gears to run is if the 2 cams are running opposite)

sonic is a good guy to get JDM parts from.... i have dealt with him

***Chris Corolla S*** · 10-23-2003, 11:12 AM

^^OK man I didn't know that at all, i thought "twin cam" was just a marketing term for DOHC. So a 4a-ge is DOCH, but also twin cam, because the cams are the same and run in the same direction? But my 1zz-fe is DOHC but not twin cam, because the intake and exhaust cams run in different directions? Is that the idea

PS Sorry to high-jack this thread

toyotaspeed90 · 10-24-2003, 01:40 AM

yeah, thats correct... at least for the design on the 4/7a-fe, 3/5s-fe that i know of.... i haven't taken a close look at the design on the newer zz motors, but i'm assuming it's very similar.....

the GE heads generally are twin cams (4a-ge, 3s-gte, 7m-g(t)e, etc)

4Aaron GE · 10-24-2003, 02:31 AM

Wait wait... so the cams spin in opposite directions in the 4A-FE? Web Cams website says that the 4A-GE and 4A-FE can use the same cams. On a more agressively timed cam, that'd totally screw things up! Yikes.... Good thing we went with the GZE first....

toyotaspeed90 · 10-24-2003, 08:18 PM

Quote:

Originally posted by 4Aaron GE
Wait wait... so the cams spin in opposite directions in the 4A-FE? Web Cams website says that the 4A-GE and 4A-FE can use the same cams. On a more agressively timed cam, that'd totally screw things up! Yikes.... Good thing we went with the GZE first....

i haven't SEEN them do this.... but it's the only way it would work (unless there's a 3rd hidden cam).... there isn't a belt under the valve cover.... as i'm sure you know one is driven directly off of the other (cam, that is)..... now imagine (take your fingers and make them into "gears" from each hand) trying to make 2 things geared together spinning in the same direction... doesn't work!

also, i believe the cams themselves are a bit smaller on the F series heads as well..... you can re-grind them on the 4/7a-fe and gain performance that way though