Performance & BrainstormingTalk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)
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This is little more then a suggestion of the order to MOD your engine. This is my opinion and I encourage others to add to this to help new members. This is just a guide.
Cold air intake, or fenderwall intake with a good filter such as K&N.
180* thermostat, this is optional.
Drop pulley size, no smaller then 3.5"
colder spark plugs, 1 or 2 rangers colder
PCM upgrade, performance tune
Shift kit
Some type of scan gauge that reads KR (Knock Retard)
Exhaust upgrades Series 80 muffler, or series 40 if duels.
Free flowing cat
Powerlog front manifold, or PEMs Best a good set of headers such as TOG
Valve train
Rockers, such as 1.9:1 roller rockers
valve springs, No higher then #105 springs
Oil restricted push rods
CAM (do research on this to find best choice)
New timing chain, sprockets, and tensioner
Advanced upgrades
Port and polished LIM
Port and polish heads
Port and polish supercharger Gen5 if possible
larger throttle body port and polish
Larger injectors
Transmission rebuild. Lower gears.
Intercooler
NOS.
Lets here thoughts on this list.
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Dan SAVING THE WORLD ONE BONNEVILLE AT A TIME
It's when you have preignition. If the air fuel ignites before the spark plugs fire you can chip the piston, among other things. When the knock sensors detect knock they will tell the PCM to pull timing to protect the engine. When you have KR you need to address that problem by reducing heat and pressures.
To get the most from things, plug changes, etc should be determined by how the car is running and reading the plugs.
The NA motor can benefit early on by porting a lower manfold. Another item for this that won't improve or hurt performance is to plug the coolant to the upper manifold. This will eiliminate the issue of the EGR area cracking and allowing coolant in the UIM to flow into the intake tract.
To start modding though, a first suggestion is to start with a car that is up to speed on maintenance items like brakes, struts etc.
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97 SSEi: In bits and pieces with it's guts spewed across the floor.
00 Regal GS: Turning and burnin
What order should I MOD my engine
