Camshaft :(
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Evolving Member
Joined: Mar 2007
Posts: 317
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From: Puerto Rico
Camshaft :(
After some searching for camshaft for the 4g69 the results are almost useless since the only options are RRM, RPW or custom job and by useless i mean way too expensive for what other mitsu engines and hondas can get . Like regrinds for them can be like 300-500.
Found this on the net and yes its old:
-yes, both the caliber and sonata DOHC
-yes, the caliber is crap
even if it sounds imposible....theres always some hope
Found this on the net and yes its old:
That's right. Under the hood is a DOHC 2.4L engine aka the 4G69 MIVEC, pumping out 300hp and 260lbs of torque to the front wheels. Funny thing is, the new hyundai sonata (base) has the same engine and was the first USDM car to get the revised 4G69. All dodge and hyundai cars will be renamed, as only the mitsu will keep the "4G69" name mark. This is one tuff as nail engine, so long 4G63... the 4G69 is taking over!
More info on the DOHC 4G69 MIVEC
To achieve its high-performance Dodge Caliber SRT4 configuration, the aluminum 2.4-liter World Engine block is specially machined for increased water and oil flow. Unique cast pistons travel within iron cylinder liners, and are cooled by oil squirters and affixed to forged connecting rods for high-revving reliability.
Tri-metal bearings are used for the connecting rods and crankshaft for high-performance durability. A unique oil pump/balance shaft module keeps the reciprocating assembly well-lubricated and running smoothly. An external cooler keeps oil temperatures within a safe range.
The aluminum cylinder head is equipped with unique high-temperature exhaust valves. VVT uses computer mapping to open and close intake and exhaust valves at optimal points for efficient combustion and flow. The camshaft and micro-alloy steel crankshaft, shared with the non-turbocharged 2.4-liter World Engine, are fully capable of high-horsepower loads.
Free-flow induction begins with an all-new air cleaner assembly that draws through an opening in a front crossmember for proximity to cool air. The air is then compressed in a TD04 turbocharger specially configured for the engine’s inlet and outlet packaging requirements, and sent through an intercooler to a 57mm throttle body.
Fuel is provided by a high-flow pump feeding injectors developed specifically for the 2007 Dodge Caliber SRT4. An all-new engine management system designed by Siemens -- the Global Powertrain Engine Controller -- keeps the powerplant running at maximum efficiency and power.
On the exhaust side, spent gas exits through a free-flow system that features two catalytic converters – one immediately downstream from the turbo, and another further along the 3-inch single-pipe exhaust system. Using two catalytic converters in this way provides significantly better “light-off” for decreased emissions. As with the previous-generation Dodge SRT4, the exhaust is tuned for maximum performance while meeting federal noise regulations.
More info on the DOHC 4G69 MIVEC
To achieve its high-performance Dodge Caliber SRT4 configuration, the aluminum 2.4-liter World Engine block is specially machined for increased water and oil flow. Unique cast pistons travel within iron cylinder liners, and are cooled by oil squirters and affixed to forged connecting rods for high-revving reliability.
Tri-metal bearings are used for the connecting rods and crankshaft for high-performance durability. A unique oil pump/balance shaft module keeps the reciprocating assembly well-lubricated and running smoothly. An external cooler keeps oil temperatures within a safe range.
The aluminum cylinder head is equipped with unique high-temperature exhaust valves. VVT uses computer mapping to open and close intake and exhaust valves at optimal points for efficient combustion and flow. The camshaft and micro-alloy steel crankshaft, shared with the non-turbocharged 2.4-liter World Engine, are fully capable of high-horsepower loads.
Free-flow induction begins with an all-new air cleaner assembly that draws through an opening in a front crossmember for proximity to cool air. The air is then compressed in a TD04 turbocharger specially configured for the engine’s inlet and outlet packaging requirements, and sent through an intercooler to a 57mm throttle body.
Fuel is provided by a high-flow pump feeding injectors developed specifically for the 2007 Dodge Caliber SRT4. An all-new engine management system designed by Siemens -- the Global Powertrain Engine Controller -- keeps the powerplant running at maximum efficiency and power.
On the exhaust side, spent gas exits through a free-flow system that features two catalytic converters – one immediately downstream from the turbo, and another further along the 3-inch single-pipe exhaust system. Using two catalytic converters in this way provides significantly better “light-off” for decreased emissions. As with the previous-generation Dodge SRT4, the exhaust is tuned for maximum performance while meeting federal noise regulations.
-yes, the caliber is crap
even if it sounds imposible....theres always some hope
I've never heard of this, someone fine a picture of another model/make of car with the 4G69.... Im also unsure of the claim of 300 HP and 260 Lbs of torque claim... We're not getting that under boost...
you're right, this is old. These were the original spec write-ups on the caliber srt-4 with the new 4g69 + turbo. Dan was able to get his cam reground from americancustomcam for 100.00. Look for his post. I purchased a used cylinder head off www.car-part.com and am taking the cam out of it and porting + polishing the head and then swapping it all on, this will be pretty cheap all in all, I have just had a lot of money problems crop up at once and haven't been able to get the ball rolling on it. FWIW, RRM's cam (in theory) is a regrind, just as dans was. The specs may be different, I'm just saying, find a grinder you can trust and you'll likely be fine.
RRM's is a new grind off a blank core, IIRC. The one I got was a regrind. it's cheap to get a regrind, you just have to look around. As far as I am concerned the cam was free with the cylinder head, which IIRC was around 250
I know I posted the price somewhere, and as mr. bummville has said it only cost 100 to get it ground to a turbo profile(125 with shipping)
and I wouldn't be surprised if you pulled an article about the 4g69 built up a little with over 400ATW. 300 is no big deal for a turbo 4g69, you just have to get there safely
I know I posted the price somewhere, and as mr. bummville has said it only cost 100 to get it ground to a turbo profile(125 with shipping)and I wouldn't be surprised if you pulled an article about the 4g69 built up a little with over 400ATW. 300 is no big deal for a turbo 4g69, you just have to get there safely
What will be the gain if I get my cam regrinded ? What about hp and torque, (around 10 whp ?) and what will be the effects ? The mivec will kick a little more ? The duration of the mivec will be increase ?
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From: Halli Wood
After some searching for camshaft for the 4g69 the results are almost useless since the only options are RRM, RPW or custom job and by useless i mean way too expensive for what other mitsu engines and hondas can get . Like regrinds for them can be like 300-500.
Found this on the net and yes its old:
-yes, both the caliber and sonata DOHC
-yes, the caliber is crap
even if it sounds imposible....theres always some hope
Found this on the net and yes its old:
-yes, both the caliber and sonata DOHC
-yes, the caliber is crap
even if it sounds imposible....theres always some hope
Evolving Member
Joined: Aug 2007
Posts: 170
Likes: 0
From: HiddenLeaf
rpw uses blanks and carves em i dunno about rrm
the gain would vary but 10 at the very least (you need to search) you will need to adjust timing and fuel to take full advantage, depends on rest of mods
dont think there is a dohc head that would fit, and prob not worth it you can get away wit alot even w/ sohc.
the gain would vary but 10 at the very least (you need to search) you will need to adjust timing and fuel to take full advantage, depends on rest of mods
dont think there is a dohc head that would fit, and prob not worth it you can get away wit alot even w/ sohc.
Evolving Member
Joined: Aug 2007
Posts: 170
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From: HiddenLeaf
since we are on the subject does the stock mivec profile have too much overlap for turbo app? i remember i saw sum1 post the valve timing but i cant find it now, it had the duration and lift and overlap for stock....ne1 know what i am talking about?
not too much, but it's not designed properly for a turbo application no matter how you look at it.
Thread Starter
Evolving Member
Joined: Mar 2007
Posts: 317
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From: Puerto Rico
well yea technically it may be 4b11 but not the one 08 lancers have....the sonata has a 2.4 162/162 same as our cars but its dohc and its very similar to ours.
iirc 4b11=2.0 but i think i know what you mean
iirc 4b11=2.0 but i think i know what you mean
Last edited by $MIVEC$; Oct 26, 2007 at 07:52 AM.
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