1986 4 Dr Oldmobile Cutlass Supreme Brougham

[Guest]

Hi!!

This is my first post. I just bought a used 4 dr 1986 Olds Cutlass Supreme Brougham. Need to know how I can do performance improvements on this car. I think it has a 305, as far as the VIN indicates. but could it still be some other motor?

I will really appreciate if someon could guide me as to how I can tweak this car up myself and get more power from it.

Thanks a million.

[Guest]

Is there no one who can help me learn about these cars?

I really want to understand how to get the max out of my machine. Could someone please please help a novice?

I will really appreciate that

[rocketraider]

Well- a 305 is only capable of so much, and it's computer-controlled so that limits what you can do even more. The good news is that it is a small block Chevy, and there is probably more performance stuff made for that engine than any other in the world. Way to ID it- look at valve covers. If they are rectangular with four bolts it's a Chevy engine. Trapezoid shape with 5 bolts is a 307 Olds. These also could have 229 and 231 V6 engines which are obvious.

You can always do the usual hotrod tricks- better exhaust will free up some horsepower, but ignition and carburetion are totally computer controlled and you would have to get a performance computer chip to improve those.

You can go the displacement route too- a 350 or 400 small-block Chevy engine will drop in place of the 305 like it was made for it.

On a four-door, I like to go stealth. Hot engine and tight suspension and brakes.

[Guest]

Thanks a million!! Much apreciated. <img src="http://www.aaca.org/ubbthreads/images/graemlins/smile.gif" alt="" />

Based on what you suggested, I just went ahead and converted the car to dual exhausts. I did not go for an exhaust header (combining all 8 exhaust pipes into one location) and instead, ran one pipe for the left (2, 4, 6, 8) and one for the right exhaust pipes (1, 3, 5, 7). Each has its own cat converter and each runs back into a free flow resonator. Is that going to help and did I do the right thing by not going for a header? <img src="http://www.aaca.org/ubbthreads/images/graemlins/confused.gif" alt="" />

Secondly, you mentioned the computer chip. How do I find out if it is computer controlled or manual? Where is the computer located and where can I find a performance replacement for that? <img src="http://www.aaca.org/ubbthreads/images/graemlins/confused.gif" alt="" />

Will advancing the timing from 4° BTDC to 8° or 10° BTDC help? I already put only High Octance into it. The wires are 8 mm and the dizzy is the remy one with the built-in coil. <img src="http://www.aaca.org/ubbthreads/images/graemlins/confused.gif" alt="" />

I will appreciate if you could guide me.

Thanks and regards,

[Guest]

ok so where can I find this computer chip and how much does it cost? I am in canada, btw.