ClearBraInstall,
Give me some details about the valve spring kit:
- Where to buy
- Any tips on the install
- Any special ECM setup from Hahn to get the 20 psi boost?
Have you dynoed your car with race gas and 20psi boost?
Quote:
Originally Posted by
ClearBraInstall
The difference between stage II and III is about 3psi of boost on 93 octane fuel. Or about 30 horsepower. I could tell the difference right away. Also you might look into the water/meth injection to go to higher boost levels without race gas. You can safely run up to 14 or 15 psi with the stock valve springs.
As far as daily driving, it's no different, just more power when you want it. I have the stage IV with the valve spring kit and can go all the way up to 19 or 20 psi with race gas and it still feels the same as my stage II did when not driving it hard. I actually think my stage IV idles better than my stage II did.
If you are interested in going to stage III. Check with Carlintexas as he just pulled his III upgrade kit and is selling it as he went with a DDM setup.
Clear