The wiring is undersized in our cars.
ALL the electrical wiring in our cars is undersized - and after about 26 years, BRITTLE.
The voltage right at the pump ends up being lower by a measurable amount.
This is hard on the pump and lowers the max output it can deliver.
Depending on the amount of HP you have, it could also cause WOT issues.
Upgrading the wiring is a win win deal with no down side.
There are upgrade kits (search Gary's Innovative Wiring) or you can build you own depending on your skills.
Both power and grounds need upgrading.
Everything he says about the fuel system's electrical wiring is true. Often replacing the fuel pump assembly grows into replacing or upgrading electrical wiring while everything is out in the open due to sheer necessity.
Other electrical problems are well known, others will become well known as B- & D- cars continue into middle age.
It's not just the fuel system's electrical wiring that's become a problem. It's not just the grounds either.
The vast majority of the B- & D- body's electrical wiring was thin and brittle off the showroom floor 26 years ago.
Dual piston calipers? Not even close.
1st thing the B- & D- body brake systems need is MORE ROTOR MASS, especially up front.
2nd thing is BETTER VENTING, especially up front - larger rotors tend to be designed with better venting in mind.
Many systems with larger rotors also come with dual piston calipers, but it needs saying:
dual piston calipers on OEM size rotors might FEEL better. They might even result in mild brake performance improvements, but so long as the rotor mass is not addressed, the major weakness of the B- & D- car brake systems will NOT improve.
Most people do not evaluate their brakes with several 80MpH-to-0MpH panic stops (nevermind faster initial MpH).
If you do TWO 80MpH-to0MpH panic stops on the 9C1's OEM brake system (barely superior to the WX brake system, easy upgrade), no matter how good the 1st test is, most of the ISSF's elders already know that the 1st test WILL experience brake fade before the car stops, and the 2nd test WILL be worse than the 1st.
Dual piston calipers, or even a hydroboost system, on OEM front rotors, are only upgrades UNDER 60MpH at best.
Ask sherlock9c1 about fuel injector upgrades. You want a fuel injector that can handle about 450horse at 4bar/58psi, but that will ALSO have superior atomization at idle, even at 3 bar / 43psi.
