1988 corolla (couple questions) - Toyota Nation Forum : Toyota Car and Truck Forums

going_in_circle · 03-19-2006, 05:46 PM

heys guys whats up. new to the sight and liked what i seen so i joined. i got a couple questions though. i am currantly looking at a 1988 corolla and i need to know if it has a solid rear axle and if the motors are dohc or sohc. thanks.

***REN69*** · 03-19-2006, 07:13 PM

If its an 88 Corolla it has NO rear axle as its Front wheel drive.

going_in_circle · 03-19-2006, 07:23 PM

thanks for the help but i knew its front wheel drive what i mean does it have independant suspension or is it a solid rear axle. and does anyone know about the cam??

***REN69*** · 03-19-2006, 07:30 PM

they're independant suspension, because its not RWD there IS NO rear axle.

BTW what cam??

going_in_circle · 03-19-2006, 07:42 PM

cam is it dohc or sohc and a car can be front wheel drive and have a solid rear axle. all that means is that it is a straight axle from one wheel to the other. for example caveliers have a solid rear axle.

AVANT · 03-20-2006, 12:49 AM

AE92 FWD are Independent suspension. Only the All Trac AE92 has a solid rear axle.

Ren, not all FWD have independent rears. Lots of FWD cars can have solid beams in the rear.

Stock AE92 engines are all DOHC, but they are not all the same engine

***REN69*** · 03-20-2006, 02:08 AM

I know.. I should've been more specific and said AE92s have no live axle.

And like avant said.. all AE92 Corollas in North America either the DOHC 4AF/4AFE or the Twin Cam 4AGE for the GTS and Prizm GSi models.

Killer Instinct · 03-20-2006, 07:40 AM

Quote:

Originally Posted by REN69

And like avant said.. all AE92 Corollas in North America either the DOHC 4AF/4AFE or the Twin Cam 4AGE for the GTS and Prizm GSi models.

I know this is unrelated but what's the difference between DOHC and twin cam? Don't they both mean two cams per cylinder? Sorry for the newbish question.

going_in_circle · 03-20-2006, 08:27 AM

Quote:

Originally Posted by Killer Instinct

I know this is unrelated but what's the difference between DOHC and twin cam? Don't they both mean two cams per cylinder? Sorry for the newbish question.

well i do know it isnt 2 cams per cylinde that would mean it has 8 cams.

freakinbox · 03-20-2006, 02:46 PM

I always thought twin cam was just a fancier way of daying DOHC.

AVANT · 03-20-2006, 07:46 PM

DOHC stands for Dual Over Head Camshaft. This actually relates to the design of the engine. SOHC, OHV are examples of other engine designs.

Twin Cam just means the car has 2 camshafts.

Yes, people use them interchangably all the time. Especially on Corollas since Toyota Badged the 4AGE as the "Twin Cam 16" all the time.

Killer Instinct · 03-21-2006, 12:35 PM

Yeah well that's what I thought, but it was this quote from REN above:

Quote:

all AE92 Corollas in North America either the DOHC 4AF/4AFE or the Twin Cam 4AGE for the GTS

that got me scratching my head.

***REN69*** · 03-21-2006, 06:30 PM

I was actually looking for pics to show the difference, but I can't find any of the open motor pics I've seen before.

And no, they don't mean two cams per cylinder

it means two cams period.

***REN69*** · 03-21-2006, 07:09 PM

Ok here's how it goes.. on a TWIN CAM design, BOTH cams are driven by the belt but on a DOHC design like the 4AFE, one cam is driven by the belt which then drives the other cam with internal cam gears. Also note how on the DOHC design the cams run together in the same chamber, where as the TWIN CAM design, they run totally SEPARATE from each other and never touch except for the same belt driving the cam gears externally, hence the term "TWIN" cam.

4AFE DOHC Design

4AGE TWIN CAM Design