RPW - Camshaft & Cam Gear & Retune!
May 31, 2007, 05:22 PM
#77
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Will hopefully take some vids of the rev-limiter this week.
Hopefully I can get some okay quality videos!
I already have one of the car spinning throughout the whole rev range from first and second and finally grabbing traction on third!
Hopefully I can get some okay quality videos!
I already have one of the car spinning throughout the whole rev range from first and second and finally grabbing traction on third!
May 31, 2007, 06:00 PM
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May 31, 2007, 06:04 PM
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i wanna see one at idle aswell
does it have that cool lumpy popping cams sound? like i know it wont be close to v8 idle but its would be cool tho for a 4 cyl
like here: http://www.youtube.com/watch?v=QWG2LrGEFhE
does it have that cool lumpy popping cams sound? like i know it wont be close to v8 idle but its would be cool tho for a 4 cyl
like here: http://www.youtube.com/watch?v=QWG2LrGEFhE
Jun 1, 2007, 09:09 AM
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Ok so that everyone understand this .
There are 5 lobes per each cylinder. Marked in my drawing
Ok LOBES 2 and 4 are EXHAUST LOBES
LOBE # 1 that's low and LOBE #5 is medium those two work in conjunction to deliver low end torque and good idle thats why they have different specs. Now when the engine turns into 3500 the LOBE # 3 governs the other two and therefore only the LOBE 3 cam is acting. SO MITVX was testing the STAGE 2 cam which I am gonna quote on RPW site "Vehicles running SOHC Mivec ie Ralliart Lancer only run a mild change to the primary lobes, and a mild change to secondary lobes." That is primary lobes = LOBE 1 and 5 and secondary lobe 3 in my drawing. They had to the change in the primary so that when the engine is 3500 the valve overlap wont be that different from the start and the engine will accelerate smoothly but with lots of power.
CONGRATS TO MITVX in testing the camshaft and I hope you beat the hell out of every HONDA out there ....
There are 5 lobes per each cylinder. Marked in my drawing
Ok LOBES 2 and 4 are EXHAUST LOBES
LOBE # 1 that's low and LOBE #5 is medium those two work in conjunction to deliver low end torque and good idle thats why they have different specs. Now when the engine turns into 3500 the LOBE # 3 governs the other two and therefore only the LOBE 3 cam is acting. SO MITVX was testing the STAGE 2 cam which I am gonna quote on RPW site "Vehicles running SOHC Mivec ie Ralliart Lancer only run a mild change to the primary lobes, and a mild change to secondary lobes." That is primary lobes = LOBE 1 and 5 and secondary lobe 3 in my drawing. They had to the change in the primary so that when the engine is 3500 the valve overlap wont be that different from the start and the engine will accelerate smoothly but with lots of power.
CONGRATS TO MITVX in testing the camshaft and I hope you beat the hell out of every HONDA out there ....
Last edited by migueralliart; Jun 1, 2007 at 10:03 AM.
Jun 1, 2007, 05:42 PM
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Originally Posted by stevox
i wanna see one at idle aswell
does it have that cool lumpy popping cams sound? like i know it wont be close to v8 idle but its would be cool tho for a 4 cyl
like here: http://www.youtube.com/watch?v=QWG2LrGEFhE
does it have that cool lumpy popping cams sound? like i know it wont be close to v8 idle but its would be cool tho for a 4 cyl
like here: http://www.youtube.com/watch?v=QWG2LrGEFhE
All I know the tuner went hardcore and tuned the hell out of it and the idle is like 650-700rpm. If a cop was next to me, I'd be praying lol.As Dan mentioned, for my cams, they didn't mess with the low cam lobes, only the higher lobes so idle is sweet. But most definitely you hear the cams open up on WOT and low-end takeoff.
Nice explanation on the cam lobes Migue, awesome explanation. I PM'd you back by the way.
Jun 3, 2007, 12:03 AM
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Hey everyone, I've uploaded two vids of the car flying down the street with the newly installed cams. They're both vids of flyby's in two different locations.
Will have some rev-limiter vids uploaded soon.
In the meantime:
http://www.youtube.com/watch?v=beEtQFEm4SU
http://www.youtube.com/watch?v=g65ti2fXM0s
Will have some rev-limiter vids uploaded soon.
In the meantime:
http://www.youtube.com/watch?v=beEtQFEm4SU
http://www.youtube.com/watch?v=g65ti2fXM0s
Last edited by MITVRX; Jun 3, 2007 at 01:40 AM.