You can shave the head and take the cam gears to a GOOD machine shop and have them broach in new key-ways that can be hid under the cam bolt washer.
--Ask them to broach in a 2deg and 4deg advance in the intake and 2-4 ret in the exhaust gear. THat way you can add more duration to the stock lobes. You can play with the lash too.
We have no good machine shops around here unfortunately
Of course port and polish if allowed.
No one ever checks to see if its done, but Id hate to be the first one caught doing it.
No headers allowed. I do have the JDM manifold still on with the EGR blocked off and made a block off on the intake for the EGR.
--Bassett wheels make 14" rims up to 8" wide I remember. That will give you a little better ratio and still keep the stock calipers.
Has to be stock wheels. I have multiple tires mounted up on 14 inch wheels to adjust ratio.
--Try to disconect the little vacume valve that opens up the secondary butterflies in the intake and see if that gives you a little more top end quicker (it may rob some lower end though)
Since it was originally a B21 car, I had to put the B21 intake on the B20a for the electronics and vacuum lines to be the same. The B21 does not have the secondary butterfly valves. The throttle body seems to be larger than the B20.
--Get your throttle body bored out.[/quote]
little too risky.
--Look up "gude performance" for a complete head set.. Kinda pricy but if your rules will let you make ECU changes..?
The ECu changes are not "technically' legal, but the tech officials are not smart enough to prove it. They are still stuck in the carbureted era.
--Use a 2" hole saw and start popping holes all over to cut out weight (staying away from main structural supports) They are a heavy car considering, but the B20a5 or B21 has pretty decent torque.
I have hit everything that the tech inspectors wont complain about with the plasma cutter.
--Take out all the "powered" otpions to save weight.
Its all gone. Dash and all. The doors are basically skins. This alone saved 150 lbs. With a 6 point cage with 4 door bars in driver side and 3 in passenger side, this car with me in it weighs 2280 lbs now down from a weight before I started gutting of 2690 without me in it.
I've had 4. Not bad, but limited in aftermarket.
If I can ever find another 4th gen lude they are in trouble. I want the H22