30-50 appx
It already has throttle body fuel injection.
The throttle body on a stock mustang should not hurt the performance. You can always upgrade to a better performing throttle body. Unless you plan on changing things like air intake, exhaust, headers, and things of that sort you should be just fine with the stock throttle body. They are already designed for the most efficiency and power ratios.
Sounds like your main jet is too small to feed that beast at full throttle
Vacuum leak ?
yes and try cleaning the throttle body assembly if you haven't already
You can't. 123 cc is a volume, horse power is power. If you know the output of a 123 cc engine, either (i) you already know its horsepower, or (ii) you convert kilowatts to horsepower by hp = kw/0.746.
Look for a vacuum leak. With the engine idling, anywhere you have a vacuum hose attached, Spray some throttle body cleaner at the connections and see if the engine idle picks up even just a bit. If it does, you have a vacuum leak. After checking if you do not find anything, at least spray some throttle body cleaner in the throttle body and clean the throttle blade up. Also try the Idle air Control Valve Located on top of your throttle body, or even the throttle position sensor
I think I answered this already, but it is behind the air filter box, before the curved duct that carries air to the throttle body.
not unless the transmission already comes with a clutch for high performance hugh horsepower builds it would be better to upgrade the clutch anyway
Are you asking if the Catera HAS one, or are you asking WHERE it is? If you want to know whether or not it has one, simply look under the hood for the throttle cable. If there is no throttle cable coming from the firewall below the brake fluid reservoir to the front of the intake manifold, than it is an electrical throttle system; NOT a mechanical throttle (mechanical throttles have the throttle cable). If you already knew that but you're just wondering where the throttle actuator motor is, it is located on the side of the throttle body. It's going to be on the same side of the throttle with the MAF sensor located on the air intake. Hopefully this will help out, I actually just spent a week rebuilding the electrical throttle system on my 2005 Mustang GT. Despite the difference in vehicles compared to yours, all electric throttle systems are very similar. If you plan on working on your throttle system, THERE ARE A LOT, and I MEAN A LOT, of things you need to be sure you take into consideration BEFORE you disassemble any part of the throttle system. If you have any more questions, feel free to respond anytime. Oh Yeah - Failing to take into consideration the sensitivity and procedures needed to be taken while repairing/working on an electrical throttle system will result in AT LEAST 1 check engine light code, as well as not being able to drive your car whatsoever. Improper steps while servicing the system will more than likely result in virtually NO throttle response, well at least not enough to make your car move. Please be careful while doing anything with such a system until you know EXACTLY what you're doing. Not to act like a jerk of anything, but I just don't want you to suffer what I had to these last few days........GOOD LUCK!
Ram air intake aka, short ram intakes are good for low end horsepower and torque Cold air intakes have more horsepower gaines then short ram and more top end power. If your looking for more torque then horsepower, meaning more acceleration but dont care about topping out your car, then short ram intake is what you want. If you already have enough torque and just want more horsepower and go fast as possible, then cold air intake is what you want.
Horsepower (hp or HP[1]) is the name of several non-metric units of power. In scientific discourse, the term "horsepower" is rarely used because of its various definitions and the already existent SI unit for power, the watt (W). However, use of the term "horsepower" persists as a legacy in many languages and industries, particularly as a units of measurement of the maximum power output of internal-combustion engines of automobiles, and often of trucks, buses and ships. The use of 'HP' is being slowly replaced by kW (kilowatt) and MW (megawatt).