Hi All,

 

I'm in the process of modifying the intake on my 1991 AE92 4AF (carb) corolla. I started to pull the stock system out and came across some mechanism attached to the air filter housing. It appear to be connected to the cooling system (maybe for cold start assistance etc.) Pic attached.

 

 

 

The question is, can I just remove this and assuming it's part of the cooling line just bridge it out completely to maintain coolant flow. I am working towards a 32/36 weber setup.

 

Thanks

I've found some info at www.autozone.com. Is this the Air Suction Valve? I guess it's attached to the filter base juts to get filtered air instead of unfiltered fresh air?

Yeah, it's definately the Air Suction Valve. Apparently it allows fresh air into the intake manifold to assist the cat or something, also purges exhaust back into the intake when the exhaust valves are open.

 

I took it all of and ran it with nothing covering the hole, sounded like a tractor! :-)

 

I've now plugged it and all is well.

 

Until I get the weber on I decided to put an intake on the stock carb. Will keep me going for a few months. :-)

 

 

Sounds sweet and goes good. I didn't really do it for a performance increase, just wanted to get rid of the dog ugly stock intake.

did disconnecting this air thing damage anything, or could it possibly do damage

Been driving like this for a few months now. No issues.

Polished up the rocker cover too - wet and dry sandpaper, autosol polish and finished with clear engine enamel to stop it oxidising.

 

That cam cover looks wicked I had one of these engines before I did the 4age conversion, they last forever.

nice polish, looks awesome

Yeah, it's definately the Air Suction Valve. Apparently it allows fresh air into the intake manifold to assist the cat or something, also purges exhaust back into the intake when the exhaust valves are open.

 

I took it all of and ran it with nothing covering the hole, sounded like a tractor! :-)

 

I've now plugged it and all is well.

 

Until I get the weber on I decided to put an intake on the stock carb. Will keep me going for a few months. :-)

 

 

Sounds sweet and goes good. I didn't really do it for a performance increase, just wanted to get rid of the dog ugly stock intake.

 

What size hose did you use from the carb to the piping?

I'm planning on doing the same thing on my 88 ae92 corolla with the 4af.

Thanks.

I have been looking everywhere trying to find the parts to build a similar intake for my 4AF with little luck.

I live in canada and the only place that has some of the parts I'm looking for is lordco (a auto parts store) but they want $79 for a 63mm 90degree rubber elbo! :worship:

and suggestions as to where i could find some of these parts for a resanable price?

Thanks.

Edited September 9, 200917 yr by eberbs

hi i wanted to know whether u did any modifications and when i fitted mine it kept on hitting the bonnet when i closed it and it keeps coming of the carb

Nothing you put on top of that carburettor is going to out perform the orginal intake. The engine was designed with performance of economy in mind. That is the engine is at its best when you leave it alone. The best upgrade for you would be a manual transmission.

 

That intake system performs plenty of tasks...

cold air intake

intake pressure balancer

air suction valve (balances exaust back pressure and intake vacuum).

warm air intake valve (cold starts)

Crankcase intake

...to name a few

 

Of all the f@$king around I did with my 4af-c nothing performed better than the original intake setup. Considering what you've given up, you definately need some form of cold air access to that pod filter.

 

Some time ago now, this was mine in its prime. Suspension, strut brace, wheels, cat back exaust, port work, good coil, leads and minus the air con. The sister drives it now. Goes hard as ever.

Edited June 16, 201115 yr by GJM85

ye but i just want to get the sound out of at and maybe a bit more throttle response. cany anyone give me instructions on ahow to fit the pod intake.

ye but i just want to get the sound out of at and maybe a bit more throttle response. cany anyone give me instructions on ahow to fit the pod intake.

 

Throttle response and induction noise from a pod? You could also buy V-TEC sticker....

Edited June 17, 201115 yr by GJM85

anyone hu can actually help me here??