20 Valve?

[Ripper]

hmmm... i've seen corolla's with stickers tath say "20 valve". how exactly is that supposed to work. i know a regular twin cam 4cyl. engine is a 16. but 20 valve, is the engine supposed to be a 5 cyl. or something? someone plz explain.

[twcfc3s]

ooo damn men where have you been??? an 4age engine but its from an ae111 its a 20 valves engine!! 5 valves per cilinder, and no itsnt a 5 cilinder!! ..dont know alot about that engine but you are able to rev more like 12 or 13 rpm..(well tunned)

[banged240_drift]

i would think its 2 intake and 3 smaller exhaust for better flow some other engines, none of which come to mind at the moment coem 20 valve, ive seen them around, ive never seen after market valves for a 20 v. motor though

[nissanguy_24]

Actually in the toyota engine its 3 intake valves. and 2 exhaust. See ultimately you want to let as much air into an engine as possible so you want a huge intake valve, but the bigger the valve the slower the air moves threw it, so they went to dual intake valves and exhaust valves. Basicly the 5 valve per cylender is a further take off on that. Im sure some 4age guys could give you a more detail and better to how it works and how its superior. but it seems to produce similar power per displacement as Honda's Vtec motors.

[Drk_drftr]

VW Golfs have 20 valves too

[Ripper]

Originally posted by nissanguy_24
Actually in the toyota engine its 3 intake valves. and 2 exhaust. See ultimately you want to let as much air into an engine as possible so you want a huge intake valve, but the bigger the valve the slower the air moves threw it, so they went to dual intake valves and exhaust valves. Basicly the 5 valve per cylender is a further take off on that. Im sure some 4age guys could give you a more detail and better to how it works and how its superior. but it seems to produce similar power per displacement as Honda's Vtec motors.

ahhh thanx, nissan_guy! does this count as a speical type though? imean it does get 5 valves for each piston. also, doesn't the air intake depend how wide the throttle body open (full throttle is as much air it can take in right)?

[CRASHDRIVE]

Originally posted by Ripper
hmmm... i've seen corolla's with stickers tath say "20 valve". how exactly is that supposed to work. i know a regular twin cam 4cyl. engine is a 16. but 20 valve, is the engine supposed to be a 5 cyl. or something? someone plz explain.

http://www.club4ag.com/faq%20and%20t...ifications.htm

[RallyGT]

yeah, like on initial D when they do the motor swap in the eight six...his power band starts at 7000 rpms

[CRASHDRIVE]

Originally posted by RallyGT
yeah, like on initial D when they do the motor swap in the eight six...his power band starts at 7000 rpms

omfg

[crusTE72corolla]

Ditto

[Ripper]

Originally posted by CRASHDRIVE
omfg

calm down yo. atleast he didn't say a single cam 10 cyl. engine

[nissanguy_24]

Originally posted by CRASHDRIVE
omfg

Actualy thats a good example. THough not really relavent to the discussion.

[style54109]

Yeah, most engines that have 20 valves I think are 3 intake and 2 exhaust, but I have seen a few that are the other way around. VW even had a comercial a year or so ago that had a whole 3d engine, and they explained how 5 valves work, instead of 4. It was suppposed to be some new thing I guess for VW.

[RallyGT]

its not like initial D is inaccurate....

[prodigy]

Originally posted by CRASHDRIVE
http://www.club4ag.com/faq%20and%20t...ifications.htm

Can someone tell me what the AE101 and the AE111 are, are they FF or FR, and are they still Corollas?

[nissanguy_24]

Originally posted by prodigy
Can someone tell me what the AE101 and the AE111 are, are they FF or FR, and are they still Corollas?

They are front wheel drive corrollas.. Thus the difficulty of the swap.

[crusTE72corolla]

They are both FF corollas. 90's JDM models, check out club4ag.com for more. There are alot of things you have to do to use them in a FR aplication.

[AE86_drift]

Originally posted by crusTE72corolla
They are both FF corollas. 90's JDM models, check out club4ag.com for more. There are alot of things you have to do to use them in a FR aplication.

Well, yes and no. Since the block is esentially the same, alot of the stuff from the 86 will work with the 101/111. The problems are with the mounts, wiring, and the fitment of parts ment to sit latitudanely instead of longitudanely.

Also, quick question here. I am going to be swapping in the 4agze into my AE86. I should be able to use the SR5 tranny(T50?) with the 4agze motor, right? I heard from somewhere the flywheel bolts for the two are different(4 for 4age and 5 for 4agze)

[Parry]

Originally posted by Drk_drftr
VW Golfs have 20 valves too

VW and Audi's 1.8T motor is 20v. 3 intake, 2 exhaust plus boost. It actually came out back in 96 I think in the Audi's, then 3 years later with the VW's. Stage 3 1.8T's with bigger turbos put down better then 300 horse for not a lot of money.

[bluballz]

yah 20v 4ages came from ae101 & ae111 levins & truenos. basically what would be called a corolla gts if they still sold um in the states. they have 5 valves per cyl. higher compression (i think 10.5:&11:1) and individual throttle bodys, along w/ some other stuff.

i think toyota may have adopted the 5 valve per cylinder idea from yamaha (the R1 has a 20 valve engine too), since toyota and yamaha have been "in bed" with eachother since the 70s or so.