sr20de or turbo ga16de?

[ghosthunter]

took home my car last night... all i can say is: what a monster... and to think it's in its stock config...

some friends suggested the following upgrades:
1. IHE
2. SAFC
3. HTW

which would gain me the most HP?

Proper IHE should be your next mod.

Next, S-AFC would give you some "free" hp and also some degree of adjustability to tune the engine for any additional mods as well. But you will need to get some dyno tuning time for this mod. Also doing this after the IHE would save you time and money from re-doing the dyno tuning.

Also before going on the dyno, you have to decide if you want to use regular unleaded gasoline or switch to Shell V-power for more power because your ignition timing can be adjusted on to get max power while on the dyno. (Potential gain around 10hp)

Don't waste your money on HTW (high tension wires). The stock wires work well enough.

BTW, you might want to check if your engine has the 180kph limiter as most surplus SR20s came from japan and they are artificially limited to 180kph by an electronic speed governor. Good news is it can be bypassed as done on my car.