| RE:Help with 91 L98 Performance Mod's |
Subject: RE:Help with 91 L98 Performance Mod's by Skidmarks on 2005/9/29 14:35:13 Definetly exhaust mods. The L98 has probably the most restrictive exhaust system of any C4 model. A nice free flowing exhaust system will really wake it up. The intake system is also pretty restrictive. A K&N air filter and an open air box lid will let it breathe better. There are lots of little stuff that can add up to adding some ponys. Besides what has already been mentioned. Remove the "frisbee" at the water pump pulley. That's about 10 lbs less that the motor has to spin. If it's an automatic, a high stall converter can help. Or if it has the 2:59 rear gears, a gear change up to 3:07, 3:54 or even 3:73 will really help it shoot outta the hole. (I wouldn't recommend the 3:73 for an automatic if it sees quite a few highway miles) If you're going to open up the engine, definetly get the intake system better. You can port the existing intake and heads and with a cam swap probably get near 300 rwhp. But, you'd have to go with aftermarket equipment to get beyond that. |
