Aku dpt clip video & link ni dari sorang kawan.....
Aku kurang pasti apa sebenarnya 4 throttle...
Teknologi 4 throttle ni teknologi yg macamana sehinggakan turbo pun bole cicir.
Harap korang yg minat kete kat sini bole share info...
[ Last edited by melayucyber at 12-10-2007 05:24 PM ]
1) henjin turbo ape ?
2) henjin 4 throttle tuhenjin ape ?
3) kalah macam mane ?
P/S : Video tu takleh tgk...
4 Throttle nie concept dia...setiap satu piston ade satu throttle body...
meaning tiap2 piston ade individual air and fuel mixture...soo henjin bernafas lebih bagus...
oxigen sendiri dan fuel injection sendiri...bila angin masuk...kepadataan dia lebih sempurna...
Originally posted by pembangkang at 28-9-2007 10:58 PM
enjin vtec... single trotle pun...dh banyak yg pernah makan enjin turbo
pd superbike dh lama ade
kaloo tuk engine 4AGE 20V...mmg 4 throttle tu asal dari motor...sebab yang design 4 throttle tuk Toyota tu pun Yamaha...soo tak heran laaaa ade certain enjin toyota ade chop Yamaha...especially 3S-GTE...
4 throttle ni maksudnya setiap silinder ada throttle bodynya sendiri. kalau kereta biasa cuma ada satu throttle body sahaja yang akan feed silinder melalui intake runner yg berlainan.
sistem 4 throttle bukanlah teknologi yg terlalu 'uber' atau 'godly'. ianya bukanlah force induction macam turbo atau supercharge.
4 throttle pun boleh dibikin menjadi turbocharged atau supercharged, asal kena customization dan tuning. (PERHATIAN: bukan untuk car newbie)
Setau aku injin ni si TAKUMI FUJIWARA je yg pakai.
Nie ade sikit info yg penah aku terbaca...
1st generation 4A-FE Engine
2nd generation 4A-FE Engine
4A-FE engine sticker
The 1987-19984A-FE is the descendant of the carburated 4A-F. This version, although from the same series and the same generation as the 4A-GE, is different from its "brother" in terms of performance and power. Although both have the same displacement and are DOHC, they were optimized for different uses. The first obvious difference are the valves, the engine's intake and exhaust valves were placed 22.3
[edit] 4A-G (16-valve)The next major modification was the high-performance 4A-G, with the fuel injected version, the 4A-GE, being the most powerful. It is speculated that the 4A-GE is actually a road going version of the Ford Cosworth BDA racing engine, reverse engineered by Toyota as the bore & stroke dimensions are similar and there are many similarities in the engine design making it a reliable engine for motorsports applications. The reliability and performance of these engines has earned them a fair amount of enthusiasts and fan base as they are a popular choice for an engine swap in to other Toyota cars such as the KE70 and KP61. New performance parts are still available for sale even today because of its strong fan base. Production of the various models of this version lasted for five generations, from 1983 through 1991 for 16-valve versions and the 5-valve4A-GE lasted through 1998.
First generation 4A-GE (notice the black and blue words) in mint condition dismantled from a 1983 Toyota AE86 Corolla Sprinter Trueno
The first-generation 4A-GE which as introduced in 1983 replaced the 2T-G in most applications. This engine was identifiable with the silver cam covers with words which were painted black and blue. It was extremely light and strong for an all-iron engine block, and produced 112 hp (84 kW) @ 6600 rpm and 97 ft穕bf (131N穖) of torque @ 4800 rpm (the American model has a lower power rating due to the use of an Air Flow sensor which restricted air flow but produced cleaner emissions that conformed to the US regulations whereas the Japanese models which use MAP sensors produced about 120 hp). The 4A-GE was one of the earliest inline-4 engines to have both DOHC 16 valves and electronic fuel injection (EFI). Toyota designed this engine with performance in mind; its twin camshafts are 50 degrees apart to allow decent power, but this sacrifices torque. This engine is very popular with racers and tuners because of its ease of modification, simple design, and lightness. Production of this engine model lasted through 1987.
The second-generation 4A-GE produced from 1987 to 1989 featured larger diameter bearings and added reinforcement ribs on the engine block. This engine has similar power output as the first generation engine and has the same cam silver covers but with the words painted red and black.
The third-generation appeared in 1989 and was in production till 1991. This engine has the silver cam covers with the words only written in red hence the nick name red top is coined for this version. It features a redesigned engine head (TVIS is removed, smaller intake ports with the intake manifold inverted for transverse mounting in to a front wheel drive configuration for the AE92), piston-cooling oil sprays, higher compression ratios (upped from 9.4:1 to 10.3:1) and the internal parts such as the con rods are built tougher to take the added load. All of the engines produced in this version used MAP sensors. This engine revision upped the power to 138 hp (103 kW) @ 7200 rpm with 110 ft穕bf (149 N穖) @ 4800 rpm of torque.
The 4A-GE was first introduced in the 1983Sprinter Trueno AE86 and the Corolla Levin AE86 sports version. The AE86 marked the end of the 4A-GE as a rear wheel drive (RWD or FR) mounted engine, alongside the RWD AE86/AE85 coupes a front wheel drive (FWD or FF) corolla (the AE82) was produced and future corolla/sprinter's were all based around the FF layout. The engine was retired from North American Corollas in 1991, although it continued to be available in the Geo Prizm GSi (sold through Chevrolet dealerships) from 1990-1992.
Clarification: In the US market, the 4A-GE engine was first used in the 1985 model year Corolla GT-S only, which is identified as an "AE88" in the VIN but uses the AE86 chassis code on the firewall as the AE88 is a "sub" version of the AE86. The 4A-GE engines for the 1985 model year are referred to as "Blue top" as opposed to the later "Red top" engines, because the paint color on the valve covers is different, to show the different engine revision, using different port sizes, different airflow metering, and other minor differences on the engine.
An AE86 chassis code may be a base model Corolla, or an SR-5, with a 4A-C engine. Only the AE88 version carried the 4A-GE engine and GT-S designations in the US. In other markets, other designations were used. Much confusion exists, even among dealers, as to which models contained what equipment, especially since Toyota split the Corolla line into both RWD and FWD versions, and the GT-S designation was only well known as a Celica version at that time.
Toyota models that have had this engine:
Toyota sponsored the Champ Car Atlantic Championship from 1990 to 2005. A kit version of the 4A-GE from Toyota Racing Development was used to power Formula Atlantic cars during this period. This engine used a modified 16-valve head and produced approximately 240 horsepower at 8400 rpm.
The fourth-generation 4A-GE was produced from 1991 to 1995 has silver cam covers with chrome letters hence the nick name silver top. This engine yet again features a completely revamped head where the 16-valve design is replaced with a 20-valve design,Toyota VVT is used in the intake cam for improved low rpm torque and economy, increased compression ratio (10.5:1), the cam shafts are not widely spaced as they used to be and the throttle body is replaced with a quad individual throttle body system governed by an air flow sensor. This engine produces 158 hp (118 kW) @ 7400 rpm with 162 N穖 @ 5200 rpm of torque.
The fifth-generation 4A-GE was produced from 1995 to [1998]] is the final version of the 4A-GE and has black cam covers. This engine is fondly known as the black top yet again features even higher compression ratio (11:1) and the air flow sensor is replaced with a MAP sensor and the diameter of the 4 individual throttle bodies is increased. This revision upped the power to 162 hp (121 kW) @ 7800 rpm with 162 N穖 @ 5200 rpm of torque.
Some Racing team participating in the Group A of the JGTC, using either the AE101, AE86 or AE82 corollas, used a specially modified version of the engine, rated at 240 HP at 11,000 RPM. [[url=http://en.wikipedia.org/wiki/Wikipediaiting_sources]citation needed[/url]]
Originally posted by arduka_kencana at 7-10-2007 09:11 AM
aku nak tanya..sebab aku pakai ae101..so..kalu ko pakai enjin tue naik meter dalam 190...stable kerr keta?..or ade tambah accecorie ntuk kasik stable keta ko............maaf laa..aku nie jahil sk ...
Camne leh tau 190km/h meter keta jepun mostly sampai 180km/h jee...
yup bila dah laju stability keta kena jaga...(Speed doesn抰 kill ,its the sudden stop)
1) jgn pakai stock suspension...preferable pakai coil over spring...sbb spring rate n damping rate dia lebih keras...body roll kurang...
2) stabilizer bar...lebih kepada high speed cornering, selain protect engine bay dari side impact...
3) guna V rating tayar...yg mane limit dia 240km/h...(20 Valve leh cecah 250km/h, tp bila pakai V rating tayar, make sure bila lebih 240km/h...hanya tuk 15 minit jeeee...kaloo tak tayar tak tahan)...dan jangan lupa pasti kan angin tayar cukup
4) sway bar kasi besar n kuat lagi...(tuk cornering)...tapi payah nk jumpa...tak pun kuar duit lebih skit beli, beli Ultra Racing nye sway bar...
5) dan paling penting...braking system...pastikan dlm keadaan yg sempurna...elok pakai twin pot dr AE111 atau pakai 4 pot RX7 nye dgn stock brakepad, tp stock brake pad taktahan tuk main track...)...pastu tambah skit dgn brake stopper...bagus tuk hard braking...
perkara yg lain...
1) jgn cepat cuak...
2) cari jalan yg clear...
3) berhati-hati dijalan raya...kaloo nk tau top speed bape laju keta tu mampu...better gi buat dyno test...
Post time 28-9-2007 10:59 AM
变色卡
Author
iting_sources]citation needed[/url]]
