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mIVEC PERFORMANCE after engine modifications

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Old Sep 5, 2004 | 11:19 PM
  #1  
JunCam's Avatar
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mIVEC PERFORMANCE after engine modifications

Guys need some advice from anyone.. Now I'm currently drive Lancer Mr 1st gen Mivec 4G92
Below are my mod's

port n plosih with metal gasket 1.5mm, 64mm T.B, Jun 5.4 flywheel,Jun camshaft 304 + Jun cam sprocket,e-manage for air flow & ignition adjustment,K&N air filter,exedy clutch plate,cc upgrade to 1.8 used of mivec pistons, straight pipe exhaust with 2.4 diameter.

tuning my car with e-manage on dyno run without the Jun type2 cam = 141 whp,
is that correct figure for mivec with above upgrade?

tuning my car with e-manage on dyno run with the Jun type2 cam = 154 whp,
while the mivec is kick in the graph drop probably around 7-10 hp and rapidly up to 8600rpm... why I'm getting drop while mivec is kick in with Jun cam?
I've set on mivec shift point at 5500 rpm at e-manage. so what should i do to make sure the graph doesn't drop while mivec is kick in?
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Old Sep 13, 2004 | 08:28 PM
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From: Auckland NZ
you'll need to set the mivec really high (7000ish) do a dyno run the set it really low (4000ish) then with the 2 runs find the point where they cross and set the mivec point there.

Where did you get the cams from and how much were they.
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Old Sep 17, 2004 | 12:12 AM
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I did try with 7000 rpm for mivec activation point, but it still giving the same thing.. but I don't think 7000rpm will be good since the car was setup for the drag race, even at open as early 4500 rpm it still giving the same ****...
is there anything to do with ignition or airflow??? Ok from the e-manage perceptions I id retard the airflow and advance the timing.. from the dyno graph given.. while mivec is kick in fuel consumption getting reach as 12%++ (AFR) even I had retard it to possible values..
it's really messy up me since while the mivec kick in I feel like no boost from the mivec power...
actually Im from KL so I bought it from one of our performance shop.. cost me almost 5K + valve springs..
Nice to have JUN cam coz it giving u very good idle characteristic withou any power lost
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Old Oct 25, 2004 | 01:04 AM
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zoe
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juncam
do u know where i can find brand new or even used jun type-II camshafts for 4G92?

location: same

shops: only left the valve springs, the jun flywheels sold, cams sold.

Last edited by zoe; Oct 25, 2004 at 01:09 AM.
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