となっている。これらはトヨタのエンジン名称規則から外れた名前で呼ばれているため誤解を生むケースも多々あるが、概ね名称規則から大きく逸脱していないために俗称として呼ばれている。
No, I believe you can find too many differnt variants of 4AGE's that no-one has bothered. I believe MRP does a 20V adapter loom but I havent seen anyone area presenting 16V possibilities.
Most 20V conversions are to get a rear wheel drive kind so the first distributer cap has to be eradicated as mentioned from the 20v RWD Guide, Consequently numerous coils are essential with the ignition method. So through the ECU facet two ignition outputs in a waste spark setup or four for independent coils.
– The Blacktop has a larger quantity airbox. The other essential difference would be the Silvertop airbox has a horizontal split concerning the lid and the base, as such the bolts are wound in the top rated down.
Setting up large period cams on the stock set-up will lead to the shims to slide-off and fast cause instant engine seizure. As often stay clear of reground cams with non-factory lobe facilities, you will have issues obtaining the appropriate adjustment shims.
Re: ITB Conversion on sixteen valve 4AGE On my stock bigport AW11 a leaking exhaust manifold gasket triggered the O2 sensor to study lean and it pumped gasoline in the motor. Gas economic system plummeted till I sorted it out.
The other identified failure has long been documented by “Mr Acoustic” and is the facility transistor during the ECU itself that does the power switching for that solenoid electric power return. This has long been extensively lined on his Site mentioned under:
To permit to the Blacktop’s want for just a vacuum signal (see “Load metering”) a larger segment of metallic was included on reduce Portion of the flange facial area of The pinnacle to mate from the inlet manifold. Remember to see below “Inlet manifolds” for more information.
Despite the fact that the Blacktop head incorporates a much more open combustion chamber (see “Head combustion- chambers”) it nonetheless has an increased static compression ratio (see “compression ratio”), this is only because of the piston design and style. The Silvertop piston contains a pretty small dome with two deeply angled exhaust flycuts, two moderate inner flycuts along with a moderate flat middle flycut for the center ingestion valve. The Blacktop piston may be very different, to support with the larger chamber the dome is noticeably bigger with lessened flycuts. The exhaust flycuts remain current but far more shallow and only the middle intake flycuts stays but even that is merely a small flat round dish machined out.
To allow for the Map studying of the Blacktop engine (see “load metering”) the inlet manifold has a wider facial area for your aspect of the head with an additional vacuum feed off every cylinder that results in an integral chamber for the vacuum sign to feed the Map sensor. The Blacktop head showcased a broader flange confront to Permit these channels a good surface to seal towards.
The Australian Adaptronic ECU is actually a highly regarded and tested option of ECU for working 20V engines. It truly is very well supported and very affordable, the substitution looms are particularly well priced. To find out more: Adaptronic.com.au or maybe the information boards.
Be sure to see the write-up ‘Ingestion Tuning for multiple throttles‘ for more State-of-the-art info on this topic.
I used to be gonna return the engine, but lastly, Greg within the JJsmotors group talked me into keeping it, and don’t regret it whatsoever. 7 months in as well as the motor is managing smoothly like a motherf*ker
The Silvertop Velocity stacks / trumpets are fashioned out of a hard plastic even though the Blacktop takes advantage of a read more company rubber instead for their design.