i would like to wish all of my moslem friends and families ‘happy eid dul fitr’ in the holy month of syawal. May god bless us all with joy and prosperity.
-akatsuki-
Thursday, September 9, 2010
Wednesday, September 8, 2010
Hybrid Project Part 4
Hi guys!
Some pictures that i took during the process. My mechanic first checked the condition of the cylinder head and then cleaned it with special chemical to take out a of unwanted stains , debris and old engine oil from the cylinder head. Picture below.
After that, they install all of the parts back in the cylinder head. Next, they checked the valve clearance between the head and the piston by putting clays on top of the valve pocket. Sorry forgot to take picture at that time. This is a very important step because if the measurement is not accurate, the valves might hit the piston especially when MIVEC activate.
Since i'm out of budget at that time, i have to cancel my plan to port & polish the cylinder head. But nevermind. Maybe next?
Thats all for now. Wait for the next post. The finale. Thx guys!
Tuesday, September 7, 2010
Hybrid Project Part 3
DIY time =)
The rocker cover will look much better with my plug cover which has been wrapped with 3M carbon fiber 3D effect sticker. Damn nice. I got it when i searched around the net. Bought it because my halfcut cylinder head didn't come together with the plug cover.
Since the MIVEC rocker cover look dirty and dull, i sprayed it to my favorite color which is blue. It doesn't turn out like what i wanted. Actually, I wanna make it dark blue like my previous rocker cover but then color turned lighter that what i planned. ahahah. Nevermind. It still looks good though.
The rocker cover will look much better with my plug cover which has been wrapped with 3M carbon fiber 3D effect sticker. Damn nice. I got it when i searched around the net. Bought it because my halfcut cylinder head didn't come together with the plug cover.
i like!
See you guys in the next post.
Monday, September 6, 2010
Hybrid Project Part 2
Hey guys!
Another update. I bought this two stuffs accidently when i visited performance shop in my area. Since my current plugs worn out, i think i wont reuse it back in the cylinder head. At first, i think i just wanna buy NGK iridium IX plugs but since i've always been a fan of NGK Iriway plugs, i cancelled my plan and then go for NGK Iriway ( heat 7 ). It cost higher than the iridium but i think i dont mind since i know that it will perform much better than the iridium.
heat 7
Other than that, i bought a very small stuff which proven to protect the engine. It is called 'magnetic oil sump nut'. It cost less than MYR50. And it can be use for a very long time.
protect your engine!
Why magnetic oil drain nut? From the information that i gathered from the net, our engine oil filter can't catch everything. So, with the help of magnetic oil sump nut, it will catch any metal particles in engine oil, keeping engine completely free of metal bits and shavings. Stop engine damage before it can begin! Still confuse how it works? then watch the video below =)
Cool huh?
Stay tuned for more!
Saturday, September 4, 2010
Hybrid Project Part 1
Hi guys.
For this project, i didn't touch anything on the engine block. Still remain with my current block setup since it is already quite good for this hybrid project. Furthermore, this block has just been overhaul last year. Since we took off the previous cylinder head, i asked my mechanics to polish back the piston. See below for the picture.
Thank god there is no alteration on the piston that we need to make to fit in the cylinder head to the block. For those who didn't know, i'm using B16 p30 piston taken from EG siR VTEC, so we need to check first and after that we can decide which metal gasket thickness that we can use so that we wont have any problem later especially during MIVEC open/ ON. Stay tuned for more.
regards
For this project, i didn't touch anything on the engine block. Still remain with my current block setup since it is already quite good for this hybrid project. Furthermore, this block has just been overhaul last year. Since we took off the previous cylinder head, i asked my mechanics to polish back the piston. See below for the picture.
shining!!
Thank god there is no alteration on the piston that we need to make to fit in the cylinder head to the block. For those who didn't know, i'm using B16 p30 piston taken from EG siR VTEC, so we need to check first and after that we can decide which metal gasket thickness that we can use so that we wont have any problem later especially during MIVEC open/ ON. Stay tuned for more.
regards
Thursday, September 2, 2010
Another Sign of Ageing?
Hi guys.
Recently, i felt that my engine is too aggressive to use on the road. Since this car is a daily driven car, driving in town with lot of traffic jam sometimes make me feel really pissed off especially during hot days and without air-condition. LOL. What more can i do right since I'm using race spec camshaft ( 300 degree of duration ). So it will stall everytime i turned ON the air-condition during idle. Suddenly, this idea came up in my mind. It might shock some of you guys but i want to reveal something.... i just bought new cylinder head to be plonked on my engine block. Pictures below.
Yes. As you can see from the picture above, i bought the famous MIVEC cylinder head by Mitsubishi. The technology from the cylinder head is quite similar to VTEC system. MIVEC technology is an answer to VTEC by Honda XD. Some of the specification of the cylinder head.
Mivec Camshaft Profile
Recently, i felt that my engine is too aggressive to use on the road. Since this car is a daily driven car, driving in town with lot of traffic jam sometimes make me feel really pissed off especially during hot days and without air-condition. LOL. What more can i do right since I'm using race spec camshaft ( 300 degree of duration ). So it will stall everytime i turned ON the air-condition during idle. Suddenly, this idea came up in my mind. It might shock some of you guys but i want to reveal something.... i just bought new cylinder head to be plonked on my engine block. Pictures below.
i will now miss the power, the touch, the sound, the hardship, the sweat & the victory. thx all motor 4g93 variable-less screamer. you will be missed. thx for the memories.
MIVEC cylinder head
Yes. As you can see from the picture above, i bought the famous MIVEC cylinder head by Mitsubishi. The technology from the cylinder head is quite similar to VTEC system. MIVEC technology is an answer to VTEC by Honda XD. Some of the specification of the cylinder head.
Mivec Camshaft Profile
mivec low lobe
Ex 232/8.24mm lift
IN 228/7.58mm lift
Mivec high lobe
Ex 285/9.83mm lift
In 300/10.41mm lift
Still didn't get the idea? here are another informations that i got from the internet which can help you guys to understand a bit more on what MIVEC really is :)
"Some types of variable valve control systems optimize power and torque by varying valve opening times and/or duration. Some of these valve control systems optimize performance at low and mid-range engine speeds. Others focus on enhancing only high-rpm power. MIVEC system provides both of these benefits by controlling valve timing and lift. The basic operation of the MIVEC system is altering the cam profiles and thus tailoring engine performance in response to driver input.
In essence, MIVEC serves the same function as "swapping cams", something that car racers might do when modifying older-design engines to produce more power. However, such swaps come with a compromise - generally yielding either greater low-end torque or more high-end horsepower, but not both. MIVEC achieves both goals. With MIVEC, the "cam swap" occurs automatically at a fixed engine speed. The cam switch operation is transparent to the driver, who is simply rewarded with a smooth flow of power.
Two distinct cam profiles are used to provide two engine modes: a low-speed mode, consisting of low-lift cam profiles; and a high-speed mode. The low-lift cams and rocker arms - which drive separate intake valves - are positioned on either side of a centrally located high-lift cam. Each of the intake valves is operated by a low-lift cam and rocker arm, while placing a T-lever between them allows the valves to follow the action of the high-lift cam.
At low speeds, The T-lever's wing section floats freely, enabling the low-lift cams to operate the valves. The intake rocker arms contain internal pistons, which are retained by springs in a lowered position while the engine speed is below the MIVEC switchover point, to avoid contacting the high-lift T-shaped levers. At high speeds, hydraulic pressure elevates the hydraulic pistons, causing the T-lever to push against the rocker arm, which in turn makes the high-lift cam operate the valves.
In summary, MIVEC switches to the higher cam profile as engine speed increases, and drops back to the lower cam profile as engine speed decreases. The reduced valve overlap in low-speed mode provides stable idling, while accelerated timing of the intake valve's closing reduces backflow to improve volumetric efficiency, which helps increase engine output as well as reduce lift friction. High-speed mode takes advantage of the pulsating intake effect created by the mode's high lift and retarded timing of intake valve closure. The resulting reduced pumping loss of the larger valve overlap yields higher power output and a reduction in friction. The low- and high-speed modes overlap for a brief period, boosting torque"
Ex 232/8.24mm lift
IN 228/7.58mm lift
Mivec high lobe
Ex 285/9.83mm lift
In 300/10.41mm lift
Still didn't get the idea? here are another informations that i got from the internet which can help you guys to understand a bit more on what MIVEC really is :)
"Some types of variable valve control systems optimize power and torque by varying valve opening times and/or duration. Some of these valve control systems optimize performance at low and mid-range engine speeds. Others focus on enhancing only high-rpm power. MIVEC system provides both of these benefits by controlling valve timing and lift. The basic operation of the MIVEC system is altering the cam profiles and thus tailoring engine performance in response to driver input.
In essence, MIVEC serves the same function as "swapping cams", something that car racers might do when modifying older-design engines to produce more power. However, such swaps come with a compromise - generally yielding either greater low-end torque or more high-end horsepower, but not both. MIVEC achieves both goals. With MIVEC, the "cam swap" occurs automatically at a fixed engine speed. The cam switch operation is transparent to the driver, who is simply rewarded with a smooth flow of power.
Two distinct cam profiles are used to provide two engine modes: a low-speed mode, consisting of low-lift cam profiles; and a high-speed mode. The low-lift cams and rocker arms - which drive separate intake valves - are positioned on either side of a centrally located high-lift cam. Each of the intake valves is operated by a low-lift cam and rocker arm, while placing a T-lever between them allows the valves to follow the action of the high-lift cam.
At low speeds, The T-lever's wing section floats freely, enabling the low-lift cams to operate the valves. The intake rocker arms contain internal pistons, which are retained by springs in a lowered position while the engine speed is below the MIVEC switchover point, to avoid contacting the high-lift T-shaped levers. At high speeds, hydraulic pressure elevates the hydraulic pistons, causing the T-lever to push against the rocker arm, which in turn makes the high-lift cam operate the valves.
In summary, MIVEC switches to the higher cam profile as engine speed increases, and drops back to the lower cam profile as engine speed decreases. The reduced valve overlap in low-speed mode provides stable idling, while accelerated timing of the intake valve's closing reduces backflow to improve volumetric efficiency, which helps increase engine output as well as reduce lift friction. High-speed mode takes advantage of the pulsating intake effect created by the mode's high lift and retarded timing of intake valve closure. The resulting reduced pumping loss of the larger valve overlap yields higher power output and a reduction in friction. The low- and high-speed modes overlap for a brief period, boosting torque"
Quite long huh? hehe. To be true, I'm very sad actually to sell my beloved 93T head because the head that i built is very capable to trash some variable and lifting machine if you know what i meant but, since this car is daily driven, so i had to make up my mind and sell this head off. Hopefully the new owner will make a better setup with the head in his race machine. All the best.
So, readers... LET ME TAKE YOU TO MY NEXT JOURNEY TO FIND HORSEPOWER.
p/s: i'll update on 4g93 MIVEC build up in the next post. Stay tuned!
Monday, August 30, 2010
Ross Racing Pistons for Campro
Hi guys!Good news for those Campro & Campro CPS engine builder. ROSS Racing Pistons from United States has just released custom piston for this engine model which are fully strengthened and forged. So you guys who are running on Campro engine now have new option on which piston to choose if you wanna upgrade your engine.
For more info you can send an email to them here sales@rosspistons.com and for those who stays in malaysia, you can directly contact/visit GT Auto, Sunway; inquiries@gt-auto.net, as they are the distributer for ROSS pistons in Malaysia and neighboring countries.
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