Should i rebuild my engine ?
(2011-02-22 15:20:37) 1. Says: So i really love my 1990 toyota corolla sr5 and i dont have the money to buy a whole new engine and swap or buy a better car. so i was wondering if i rebuilt my engine and got some new parts would it be good.My main concern is that the car has 120,000 miles and i want more horsepower but i dont think the engine will be able to handle a turbo....hell im scared to get it past 4500 rpms. so my guestion would be how do i get more horsepower for $1500 while still having a reliable engine.2. Says: For 1500 get a new car...the car can handle what ever the redline is...that's why they put a redline and rev limiter...your not gonna get horsepower outta rebuilding the oem factory engine...1500 look for a quicker car hell I'm sure craigslist has something cool for 1500 and 120k miles is nooooothin for a toyota engine I currently am driving a 1990 camry with 230k miles and she goes to 6k rpm noooo problem while getting on the freeway..and its a daily driver commuter not a weekend warrior save the money and get some cool 4x4 truck or something3. Says: you can buy a low mileag used engine, the problem is its not going to be any power house either, It takes money, to build power, and those small engines it takes big bucks for even modest gains, because they are already small and this is why it takes some big bucks. If I were you I would keep saving the money, those cars routinely go 250,000 miles, you know that right? so keep the oil clean and take care of it, I would find a really good toyota mechanic, there are some dual spark plug dual valves per cylinder double overhead cam motors you can bolt right in. Its high performance its stronger and faster than what you have, and if you hook it up with a 5 speed transmission you have a fast ride. But it takes a good mechanic, who knows the engines available and can tell you how much you need to save.4. Says: If you never worked on an engine, that is NOT the one you want to start on. If you really need an engine, find a used one and swap out the old one. I don't know why you're scared to rev past 4500 RPM. If you want a turbo get a MR2 turbo or Supra. You won't get much of anything for $1500.Maybe you should pull your engine and take it to a speed shop to be rebuilt, but wait till you have the money. That engine, if it had been taken care of properly, should be reliable past 200,000 miles.5. Says: It's risky as you'll likely encounter other expensive failures relatively soon and you'll never get the money out of the vehicle that you invested. I'd certainly not add a turbo and you're not going to pull much HP out of a worn engine. My advice, save your money and look to the future and another vehicle. I'd certainly not recommend another Toyota as they have built crap ever since 04 but you might locate a nice Civic SI which is a fantastic vehicle.6. Says: For that $ 1500 or perhaps a bit more, you can have a rebuilt engine installed.........................of course it's possible that the transmission, axles or other components could go bad, so it's something to consider carefully and shop around for the best price7. Says: I don't see any real reason to rebuild the engine if it only has 120k and runs ok. If you don't want to go turbo, look into intake, exhaust, port/polish, cams, valve springs, etc...anything to flow more air.8. Says: If you are thinking about going turbo you'll need to also install supporting mods, (upgraded internals).
Follow these steps if you are serious about making the most efficient power gain.
All-Motor Upgrades
1. Air Intake
Replace your stock air box with a solid pipe and high-flow cone filter.
2. Cat-back Exhaust
Replace your stock cat-back exhaust with a higher flowing model.
3. High Flow Cat
Replace your stock catalytic converter with a higher flowing model.
4. Exhaust Header
Replace your factory exhaust manifold with a tubular steel header.
5. Bored-out Throttle Body
Increase the opening on your throttle body to increase air intake.
6. Ported Intake Manifold
Further increases air intake.
7. Camshafts and Cam Gears
Agressive camshafts and cam gears allow for more power through timing adjustment.
8. Underdrive Pulleys
Underdrive pulleys can be added at the same time to reduce weight, which means the engine will work less to drive the accessory belts.
9. Cylinder Head Porting
Greatly increase air flow through the cylinder head. You may need to compensate with more fuel, which means you'll need an aftermarket Air/Fuel Controller.
10. Air/Fuel Controller
Allows tune-ability of the air/fuel mixture to avoid detonation and major engine damage.
11. Ignition Timing Controller
Allows you to control the timing.
Forced Induction Options
1. Turbo Kit
Bolt on a turbo kit for a huge power increase. Many of the All-Motor upgrades can and should be used along with a turbo kit for maximum power output.
2. Nitrous
The fastest and easiest way to bolt on big power. It's also the fastest and easiest way to destroy your engine if you don't know what you're doing. Read up on nitrous systems before considering one. Tag: Should i rebuild my engine ?