IN­DIAN CHIEF­TAIN HOP-UP

Hot Bike - - Tech -

With In­dian Mo­tor­cy­cle’s Chief­tain, there aren’t a ton of af­ter­mar­ket man­u­fac­tur­ers mak­ing per­for­mance prod­ucts for the Thun­der Stroke 111 en­gine just yet. But many are jump­ing on board be­cause of the in­creas­ing pop­u­lar­ity and in­ter­est in the lineup. How­ever, com­pa­nies like Lloyd’z Mo­tor­workz, Arlen Ness, and Fab28 In­dus­tries are mak­ing some pretty killer com­po­nents for the In­dian Chief­tain mod­els. Af­ter se­cur­ing an Arlen Ness air cleaner and Fab28 In­dus­tries ex­haust, we grabbed a new set of 558 cams from Lloyd’z Mo­tor­workz. Last, we had to tie these new up­grades all to­gether, so we went to Dyno­jet for its In­dian-spe­cific tuner, the Power Vi­sion CX. Run­ning this new setup got us from 76.3 hp and 106.8 foot-pounds of torque to 87.5 horse­power and 113.2 foot-pounds of torque.

LLOYD’Z PER­FOR­MANCE IN­DIAN MO­TOR­CY­CLE 558 CAMS

The 558 cams from Lloyd’z are equipped with exclusive de­com­pres­sion re­leases, so you don’t have to swap out the de­com­pres­sion arms from the stock cams. The 558 cams will run you $625 and will come with a new cam cover gas­ket. While swap­ping out these cams in the Thun­der Stroke 111, there are tools to make the job a breeze. These are the gear back­lash tool and the cam chang­ing tool, both of which have been de­signed and per­fected by Lloyd’z Mo­tor­workz. Save your­self some time and make sure you get these tools for the job. You’ll thank your­self later.

FAB28 IN­DUS­TRIES 2-INTO-1 EX­HAUST

The bare, stain­less-steel short 2-into-1 com­pletely screams raw power. Just the raw look with ex­posed welds gives off the vibe of put­ting down high num­bers. The Fab28 stain­less 2-into-1 not only looks rad, but it also sounds amaz­ing paired with the cam up­grade in the Thun­der Stroke 111 mo­tor. It pro­duces a very deep, choppy rum­ble, def­i­nitely let­ting you know there is some mo­tor work hid­ing in here. You are look­ing at a price tag of $1,499 for the stain­less short 2-into-1.

NINETY-DE­GREE AIR-CLEANER KIT FOR 111 THUN­DER STROKE EN­GINE; BEVELED COVER, BLACK

A new air cleaner is a must when up­grad­ing per­for­mance pieces on your mo­tor­cy­cle. No mat­ter what you do, you need that high-flow air cleaner pulling in more air to sup­ply the beast. The Arlen Ness 90-de­gree air-cleaner kit does just that. It pulls in more air for you while adding a rad touch of flare to the left side of the bike. The air-cleaner kit will run you $439.95, and comes with ev­ery­thing needed to in­stall and get those per­for­mance gains. The com­pany of­fers six dif­fer­ent color op­tions, ours be­ing the beveled cover in black.

CON­CLU­SION

Once the per­for­mance pack­ages were in­stalled, we did some ini­tial dyno runs. We used the Power Vi­sion for the Road Glide and a Power Vi­sion CX for the In­dian Chief­tain. For the Street Bob, we used the Screamin’ Ea­gle Pro Street tuner.

As you can see from the Mil­wau­kee-eight graphs (top, mid­dle) we made some good low-end torque from the start. The S&S pack­age’s torque curve shoots straight up to around 1,750 rpm and keeps climb­ing to about 3,000 rpm. The Screamin’ Ea­gle up­grades are rel­a­tively the same in the low revs but re­main more con­sis­tent through­out the power band and do not drop lower than 100 foot-pounds un­til about 4,500.

In­dian’s Thun­der Stroke 111 pro­duced some qual­ity torque and horse­power gains with the com­po­nents we in­stalled, too. We went from 76.3 hp and 106.8 foot-pounds of torque to 87.5 horse­power and 113.2 foot­pounds of torque.

We’ll keep work­ing on tun­ing all these pack­ages to see if we can find more power. If we do, we’ll re­port our find­ings at hot­bike.com. HB

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