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NoDOHC · 11-21-2008, 06:55 PM

I would prefer to leave the s5 alternator, my '86 had trouble keeping up with the rear defrost, heater, headlights and windshield wipers all at the same time while driving in 5th gear, I would have to downshift if the voltage started dropping. The s5 that I drive now has none of these problems.

I had an engine fire (minor) on my '86 at about 185,000 miles. That was the second pulsation damper. My '91 has 152,000 on the original PD without issue. The s5 PDs are better.

I will agree that the banjo bolt is a viable option, but I got an injector leak at about 194,000 miles (9,000 after the banjo bolt was installed) and the engine only started on one rotor, requiring injector replacement. I am not saying that 20 year old injectors can't fail on their own, but I will not personally install a banjo bolt on any of my cars (the '86 ran an s5 primary rail until it's demise at 199,000 miles from massive coolant seal failure).

If you are willing to go to the effort, the s5 components are almost all better. (Both are readily available on eBay, the 'other forum' and here.

11-21-2008, 06:55 PM	#2
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	I would prefer to leave the s5 alternator, my '86 had trouble keeping up with the rear defrost, heater, headlights and windshield wipers all at the same time while driving in 5th gear, I would have to downshift if the voltage started dropping. The s5 that I drive now has none of these problems. I had an engine fire (minor) on my '86 at about 185,000 miles. That was the second pulsation damper. My '91 has 152,000 on the original PD without issue. The s5 PDs are better. I will agree that the banjo bolt is a viable option, but I got an injector leak at about 194,000 miles (9,000 after the banjo bolt was installed) and the engine only started on one rotor, requiring injector replacement. I am not saying that 20 year old injectors can't fail on their own, but I will not personally install a banjo bolt on any of my cars (the '86 ran an s5 primary rail until it's demise at 199,000 miles from massive coolant seal failure). If you are willing to go to the effort, the s5 components are almost all better. (Both are readily available on eBay, the 'other forum' and here. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)