What I realy need, the Lacetti of the WTCC is allmotor and have 250hp (if I'm not wrong). What I have to do to increase power w/o turbo or super charger?
And that can be better that a turbo or not?
What I need to make my car Allmotor with high HP
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kinkyllama
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I rather have that kinda power without forced induction cuase my guess is it would be better (no lag time for spooling up) but you gotta love the sound of the turbo and the BOV
www.KinkyMotorsports.com
04' Dropped Foreno
-Coil-overs, sway bars, 13" brakes, LSD, 235mm tires, the works
-Turbo in the works
01' Lanos Sport
-Undergoing 2.0 swap w/ lots of performance bits
http://www.cardomain.com/id/kinkyllama
04' Dropped Foreno
-Coil-overs, sway bars, 13" brakes, LSD, 235mm tires, the works
-Turbo in the works
01' Lanos Sport
-Undergoing 2.0 swap w/ lots of performance bits
http://www.cardomain.com/id/kinkyllama
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PrecisionBoost
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- Joined: Thu Jun 19, 2003 5:59 am
- Location: Edmonton, Alberta, Canada
Basicly in a naturally aspirated engine the peak power is at about 20 degrees after top dead center (when the spark plug fires and starts combustion)
At this point the "all motor" engine will probably make about 10% more power than the turbo due to the delayed ignition from extra compression. ( it's a complex subject..... sorry I can't explain it easier)
Anyways.... so the "all motor" will make a little more power at about 20 degrees After TDC but the "all motor" engine will have consumed almost all it's fuel and air by the time the piston hits about 90 degrees after TDC.
In a turbo engine there is way more fuel and air...... so therefore it burns longer..... closer to 135 degrees after TDC
So although the "all motor" will have a higher peak horsepower the turbo will be making three to four times more power at 90 degrees after TDC.
This results in a much smoother engine.
So.....
all motor = short burst of energy
turbo = longer smoother energy release
At this point the "all motor" engine will probably make about 10% more power than the turbo due to the delayed ignition from extra compression. ( it's a complex subject..... sorry I can't explain it easier)
Anyways.... so the "all motor" will make a little more power at about 20 degrees After TDC but the "all motor" engine will have consumed almost all it's fuel and air by the time the piston hits about 90 degrees after TDC.
In a turbo engine there is way more fuel and air...... so therefore it burns longer..... closer to 135 degrees after TDC
So although the "all motor" will have a higher peak horsepower the turbo will be making three to four times more power at 90 degrees after TDC.
This results in a much smoother engine.
So.....
all motor = short burst of energy
turbo = longer smoother energy release
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PrecisionBoost
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basicly the all motor engines usually include very high compression pistons ( 11:1 or 12:1 )
They increase the redline to make more horsepower
( horsepower = torque X RPM )
They usually go with very agressive cams which don't work too well for a street application.... you might have to keep the engine up over 1000RPM to keep from stalling out and the idle will be very "lumpy"
Major headwork and large ports..... which make more power at higher RPM but way less at lower RPM.
Larger throttle body and in many cases quad throttle boddies with short "velocity stacks"
mandrel bent exhaust system.
Larger valves, stronger valvetrain (for more RPM)
Upgraded forged connecting rods (since increasing RPM is very hard on connecting rods)
Dry sump oil system and specially designed windage tray/oil pan
Heavy "blueprinting" which means that the engine is rebuilt with much stricter tollerances than factory and that everything is exacltly the same weight and perfectly balanced.
The list goes on.... but you probably get the idea.
They increase the redline to make more horsepower
( horsepower = torque X RPM )
They usually go with very agressive cams which don't work too well for a street application.... you might have to keep the engine up over 1000RPM to keep from stalling out and the idle will be very "lumpy"
Major headwork and large ports..... which make more power at higher RPM but way less at lower RPM.
Larger throttle body and in many cases quad throttle boddies with short "velocity stacks"
mandrel bent exhaust system.
Larger valves, stronger valvetrain (for more RPM)
Upgraded forged connecting rods (since increasing RPM is very hard on connecting rods)
Dry sump oil system and specially designed windage tray/oil pan
Heavy "blueprinting" which means that the engine is rebuilt with much stricter tollerances than factory and that everything is exacltly the same weight and perfectly balanced.
The list goes on.... but you probably get the idea.
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PrecisionBoost
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- Joined: Thu Jun 19, 2003 5:59 am
- Location: Edmonton, Alberta, Canada
I wouldn't assume this.... most all motor engines only make peak horsepower at very high RPM since they are "tuned" for a very specific RPM band. (such as 6000RPM)kinkyllama wrote:I rather have that kinda power without forced induction cuase my guess is it would be better (no lag time for spooling up) but you gotta love the sound of the turbo and the BOV
I would say that the turbo engine will make more horsepower in the lower end of the RPM band.
If you had two identical vehicles with two engines that make the exact same peak horsepower and one was a turbo and the other wasn't....... the turbo car would kill the "all motor" vehicle.
This is due to a number of factors.... perhaps if I get some time I will post some technical info on the main forum.