Non-Turbo Performance
1.8 SOHC NT (4G37 NT)
|
Most people that own a 1st generation, with a 4G37 NT, are concerned with horsepower. Truth to the matter is, my fellow Eclipse owners, you will not become faster then a fully tuned Turbo car, and will never be faster then a fully tuned 4G63 NT. But, you will be fast enough to hold your own, and probably reach a good horsepower rating of 175 hp. As you may have read, or known, the 4G37 has a standard horsepower rating of 90-105 HP. These engines were made for economy, but yes, they can be tuned for performance. I will list performance parts, with a guess of hp your engine will gain, and at the end, we will add them together. Remember, you will not get near the power of a 4g63 Turbo that has an upgrade. The 4g63 Turbo with upgrades can out do a 4g37 anyday. No light weight pulleys are available, I believe you could get the flywheel though for the more acceleration. The engine itself may weigh less because of the small cylinder head. |
| Part | HP BHP - 95 |
| Injen Cold Air Intake | 15-20 |
| Port and Polish(manifolds, head, O2 housing) | 5-10 |
| Performance Tune-Up (NGK Platinum Spark Plugs, NGK Wires, *New Cap and rotor helps*) | 5-10 |
| Apexi Super AFC | 5-10 |
| 2.5 inch exhaust from manifold back. | 5-10 |
| N.O.S (has a kit) or VENOM (2.0 kit may fit the 1.8) | 40-75 |
| Total Horsepower: | 150-200 |
2..0 DOHC NT (4G63 NT)
| Those who own a 4G63 Non-Turbo actually have better chances in horsepower then a 4g37. Not only do they have more parts available, but they actually have more potential available horsepower. As I had said, a turbo 4g63 before spool up, usually will take off the exact time, or slower then a non-turbo engine. This reason is because it takes more power to try to get the turbo running, then it takes for a natural asp engine. 4G63 NT can range horsepower ratings from 130-140 HP. The 2.0 DOHC NT also has potential of being a Turbo motor. There are kits from $3,000-$5,000 dollars around, and they will pump pretty good horsepower, but not near as much power as the 4G63 Turbo. Again, this is because of compression limiting the boost(or PSI). To have a 2.0 DOHC NT become the turbo model, you must buy certain things such as pistons, rods, intercooler, turbo(either 14B or T20), plumbing pipes, exhaust manifold, turbo mount, and oil jets. These can cost you almost an arm and a leg after your done, but for sure you will notice a improvement. I will list below a couple of sets of what you may be able to do with a non-turbo 4G63. Remember, these are guess's of horsepower differences. The Turbo options are assuming you have a front mount IC, since thats the better way of getting performance out of turbos of those size. Lighter wieght pulleys, flywheel, and weight reductions will cause greater acceleration. |
| Parts - Non Turbo | HP BHP - 140 |
| Injen Cold Air Intake | 20-25 |
| Port and Polish(manifolds, head, O2 housing) | 5-10 |
| Performance Tune-Up (NGK Platinum Spark Plugs, NGK Wires, *New Coil Packhelps*) | 10-15 |
| Apexi Super AFC |
5-10
|
| HGK Twin Power Amplifier | 15-20 |
| 2.25 inch exhaust from manifold back. | 10-15 |
| N.O.S (has a kit) or VENOM (has the kit)[Nitrous Express would be used if you had a turbo, power range would be 40-60] | 40-75 |
| Headers | 5-10 |
| 16G turbo upgrade (optional)[no headers would be needed] | 130-140 |
| 20G turbo upgrade (optional)[no headers would be needed] | 200-240 |
| Total |
Non Turbo = 250-320 |
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