View Full Version : electra glide classic 1989-number disc?

09-30-2009, 01:52 PM
Good night, I need the correct configuration of an electra glide classic 1989, with new motor EVO 1999, carburator mikuni hrs42,filter mikuni and supertrapp 2-2.
I currently have since 12 disks each exhaust but this is not going well.
Thank you.
Sorry for my english.
Greetings from Barcelona.;)

09-30-2009, 02:33 PM
We did not offer a 2:2 system for the '89 FLHTC, so I'm going to have to assume you are either running the OEM headpipe or another manufacturers headpipe with our slip-ons.
In either case, in order to assist you, a little more info might help. What are the current performance characteristics with the twelve discs? Are you running closed or open end-caps? Are you running a "true dual" or crossover headpipe? Are the mufflers the 4" external disc megaphones or the 3" internal disc units?

09-30-2009, 04:00 PM
The quiet model is supertrapp dresser (tapered) with 3ยดยด. SUPERTR SLIP TP FLT 85-94 disks.
Takes 12 3 "DIFF DISCS SUPERTR + 1 END CAP 3" 3BOLT CLOSED in each muffler.
In low speed operates correctly, but on average and high drowned.

10-01-2009, 07:12 AM
Flat on top usually indicates the need for more flow. Assuming you are running the stock crossover headpipe, try increasing discs in increments of 2 in the right side muffler.

10-01-2009, 01:03 PM
Yes, I am running the stock crossover headpipe.If I understood well this is 12 disck muffer left and 14 disck in right muffer.

10-01-2009, 01:19 PM
Correct, or if you don't have extra discs use 2 discs from the left....i.e; 10 on left/14 on right.