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Old 17 Jul 2008, 12:31 pm
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Default what can i do to my 93 honda prelude to make it faster?

It has a h22 it also has a cold air intake and i have $3,500 to spend on it?
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Old 17 Jul 2008, 12:46 pm
Li Li is offline
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Join Date: Jul 2008
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I pulled this answer from another person, I hope it helps"Having built my fair share of race motors, your going to need more then just A PART. I assume you’re a young pup who is looking to show you stuff on the streets. While this is not my thing and I think you should spend a lot of time on the track I'll give you some help here. It's going to cost money and time to get what you are looking for. There are a lot of tuning sites out there that will tell you how to get the biggest bang for your dollar. My experience is in V6 and V8 motors on the classic cars. But the internal parts are all the same. Any internal parts you change May (and most often) require a modification to the Computer in the car. So I would check with a lot of the tuning sites and see what you can do with out changing the computer. Some good kick of points that are cost effective are replacement of the air induction system and exhaust system. The more air you move in to the motor the better it will perform. These can offer up to a 50 HP gain on the car. You never mentioned if you have a stick or an auto. If you have an automatic a higher stall speed on the Torque converter will allow for a better launch and should not require a change to the computer. Most factory converters will have a 1500 -1800 stall (the stall speed is where the motor will rev before the converter locks up and starts to apply power to the wheels.) In most the racers I build that are autos I put in 3300 to 3500 stall converters. This allows the motor to hit the wheels at the start or middle of the power band. If you have a stick this does not matter because you can rev and dump at your discretions. If changing the intake and the exhaust does not make you happy then you need to look at changing the inside of the motor. I would look at maga fluxing the head first before you do anything to it. If you detect cracks opt for that Hi-Performance head. If the head looks good on the flux then port and polish the head. This allows the air to enter and exit the engine better and faster then factory. Open up the valves about 1/8 to a 1/4 inch and go with a better cam and springs. (These changes often yield about a 30 to 75 HP change in the motor) if that is still not enough look at changing the pistons and the crank. Steel cranks allow a higher rev, are lighter then the cast and allow for better balancing to be done to the motor. Changing the compression on the pistons will allow more power and a better burn on the fuel but will also require a higher octane at the pump. If you like nitrous you will need to have the factory head bolts removed and new bolts installed. (If this is not done you can and often will bolt the head right off the motor.) It is also recommended to not run a high compression motor with nitrous as you will have a pinging issue and possibly blow the whole motor up. I have seen a lot of NA (Normally Aspirated) Honda, Geos, Neon’s, and Mazda’s blow the doors of nitrous injected cars when they have the motors and trannys built with the correct combination of compression, cam, and tranny. (A friend of mine races (Drags) a 99 neon 2.0 and turns an 8.35 at the track with out nitrous.) I know I have mentioned a lot here but it’s just to give you an idea and some knowledge about what you can do. Research is the best resource. Find your target budget and start building. Then work of that. It will take some time but soon you will have a car that will run well and compete at the level you want."All credit goes to the Original Poster

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Old 17 Jul 2008, 01:01 pm
Join Date: Feb 2008
Posts: 44

Thats enough money to turbo charge it and give it up to 400 hp. However it will probably take 2,500 to correctly turbo it and the other 1,000 to adjust the motor so it can handle the power (better fuel injectors, cams, ecu, and turbo exhaust components). If you don't want to go turbo, forget it, I can go on for hours with what I'd do with 3,500 on a 92 prelude. Me personally, I'd balance the money throughout cosmetics (blackout headlights on a prelude are to die for) and a lip kit, etc, also a good audio system, along with suspension, brake and engine work. Instead of dumping it all to make it faster, I'd rather make a nice well rounded car that would be at least entry level in every area. Then spend more engine money as it comes in.
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Old 17 Jul 2008, 01:16 pm
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Join Date: Oct 2007
Posts: 10

A) Turbo it. You have close to enough money to get the kit and probably have a pro put it in. Insta-power right there, tho it requires getting a ton of parts, not to mention all the tuning and controllers you would need.B)Good headers, catback system, high flow cat, bigger throttle body and intake manifold, better plugs and wires, clean the fuel system, maybe bigger injectors, lower your car(lowering your center of gravity=better traction+less drag),lightweight racing wheels, aftermarket front & rear bumpers(aero gain and weight loss), get a carbon fiber hood(hell less heavier than stock), and finally getting it properly tuned at a dyno(big, big part of having all the aftermarket parts doing what they should be doing) Oh and can't forget the bumble-bee yellow paint job for the instant 15+hp ftw!
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