Re: ITB Conversion on 16 valve 4AGE On my inventory bigport AW11 a leaking exhaust manifold gasket prompted the O2 sensor to browse lean and it pumped gas in the motor. Gas financial system plummeted till I sorted it out.

4AGE 20v ITB vacuum Guidelines on Intecracing.com can't help with all the rest of the pipeing as it's a bit confusing but I am able to inform you what precisely the ports about the ITBs are...

mainly because I have a bigport I crammed during the spaces to seal the ingestion flange. Just implies I have a move on the inside.

The fourth-era 4A-GE engine was generated from 1991 to 1995. It's got silver cam addresses with chrome lettering, as a result the nickname "silver best". This engine another time characteristics a very new cylinder head which uses 5 valves per cylinder as an alternative to four. It works by using Toyota's Variable Valve Timing (VVT) technique within the consumption cam, a heightened compression ratio (ten.

Shouldnt the urgent down closes the throttles and let Practically zero air move thru the throttles? Also, with all of the throttle arms resting on their theottle stops, how would this let me press down around the arms? Isn't really it by now the top of the throttle arms? Thanks Jondee86!

Be sure the dashpot beneath the ITBs is hooked to the proper vacuum resource or else it is not going to suck the piston in and will retain the idle higher. Ensure It truly is adjusted right so when vacuum actuates it the pin sucks in considerably ample for your throttles to relaxation over the challenging cease. As OST mentioned make certain all the throttle plates are modified effectively.

These two gears are made by Toda Japan for that here 20V engine. It could be found in the course of The underside equipment how the middle has actually been created so its elevated to accommodate the shape on the 20V camshaft.

Though the throttle bodies might be swapped with regards to with the ability to be bolted down they have other incompatibility difficulties resulting from the various inside of / outside profiles on equally finishes and various velocity stack mounting. So when they may be swapped once the matching velocity stacks may also be equipped it is highly a good idea to port match the throttles to accommodate the manifold or vice versa exactly where applicable.

A bit of hose to the ear, Keeping it at the exact same place for each one's 'hiss' for comparison - Appears equal, they are equal.

The final portion FI-33 is from the BT BGB and will give strategies for inspecting the 20v precise electronics.

this is the shot on the ECU. the plug remaining is currently in the AE101/102 Should you have a 7AFE auto or guide. so we can't concern yourself with this one. it straight plugs in and performs.

Re: ITB Conversion on sixteen valve 4AGE probly should have outlined what my setup was to begin with! sorry.

With the cost big difference of ST and BT atleast above here, I could get wisecos and light-weight connecting rods and alot of other pleasant stuff into the silvertop...

You will be accurate. If many of the arms are resting over the stops and you simply push down, there will be no movement, and there will be no change in revs. But it is not straightforward to see