Hp.

how much hp should i gain on my 06 tc88 if i add a hi flow air filter and samson true duals with 33in baffled long tails.

More airflow without more gas won't make a significant difference in power. Likely you'll run leaner, which will make you run hotter (harder on engine)...but that isn't certain by just improving air intake. If you're carburated and increase main jet size you could gain roughly 3-5 hp. MPG would drop. If you've got an EFI bike, someone else needs to help ya.

yes it is efi and i added a fuel moto programer

With the FuelMoto, pipes, and quality intake, you will see 20-25% improvement, or 15-20 more hp. The FuelMoto is all you need for the f.i.

15 -20 hp gain with just pipes and an air filter...No way...Throw in a mild cam Andrews 21 or 26G and you may get 15...JMHO...

Q

15-20HP is not possible with a Stage I upgrade. Stock TC88 makes about 60HP/70TQ, in round numbers. With a Stage I upgrade which includes a good exhaust system which you don't have with the Samson set and a decent tune, you should see 70HP/80TQ. Your choice of exhaust is working against you though; looks cool but not known for making power.

Oh....About a hundred,I'd say. Really, about 7-9 H-P, Maybe 10 lbs/ft of torque.

Stage I upgrade is a nice improvment; the way the bikes should be delivered from the MoCo. But expecting 15% improvement just isn't realistic. Dyno operators play into this with the basline tune. Unless you get an optimum baseline, you don't know how much the state of tune has improved. Also, the baseline tune is done first, maybe a single pull. Do a few more and you will see things improve as the engine and tire heat up. Some of the gain you see from a "cold" baseline pull is artificial because you never saw the full potential of the baseline configuration.

10TQ/10HP is about the average for a Stage I upgrade. Replace the Samsons with a Thunderheader, Supermeg, Propipe, Fatcat or Road Rage II and you might see a couple of extra TQ/HP. True Duals on a 88"er look and sound good but they won't make the power any of the above name systems will.

Re: Q

The Twin Cam 88 came from the factory with an average of 64 hp and 82 ft. lbs. of tq. The stock pipes and air cleaner are very restrictive due to EPA requirements.

Changing to ANY free-flowing pipes and breather will give this motor 20% increases. 20% of 64 is 13 hp. 20% of 82 is 16 1/2 tq. Add 5-10% for the FuelMoto and you will EASILY have 15-20 hp. increase. These figures were proven by Motor Co. dyno using typical V&H pipes, S&S breather, and a Power Commander 10 years ago. The FuelMoto, Samsons, and any good breather can, and will achieve the same results without a cam upgrade.

If you are lookin for the best improvement. Look at a good 2in1 pipe.
You will get the most power too.
If you don't want Loud, get Supertrapps.
If you want noise look at Jamies 2in1 pipe

if you want another 25 hp, add wi-fi. it will blow your mind.

Re: Q

OK, I'm lookin at my dyno run sheets right now. Stock 96" 2009.=60.82HP,72.48 torque. Added Stage 1 intake & Ventilator a/c, S.E. slipons, H-D Map download. HP=70.37,81.4 torque. +9.55HP & +8.92 torque. Bike sounds great and runs great. Those numbers, for the 88must have been at the crank, not the rear wheel

Re: Q

The numbers from the factory are at the crank not the rear wheel. My 02' Heritage stock on the dyno was 59 HP and 70 TQ at the rear wheel. I added the following components and rejetted the carb during the dyno tune: SE Breather, Andrews 26G cams, V&H True Duals.

New numbers are 65 HP and 84 TQ at rear wheel. The true duals hurt the performance a litte, but I like the look.

Remember, HP is just a theoretical calculation, torque is everything!

Re: Q

But if you don't have 100/100
Yer not in the Club

Re: Q

Not a club 'type' anyway. Just puttin to my own beat.

Re: Q

Total BS my friend; you do not know what you are talking about. I repeat, in round numbers (that means give or take a couple) a stock TC88 will make about 60HP/70TQ. A Stage I upgrade, again, round numbers, will make about 70HP/80TQ. I have nothing against Samson exhaust but replace a Samson system with a Propipe, Thunderheader, Fatcat, etc. and you will see a gain in TQ. I have attached some supporting data; where's yours?

Re: Q

Just curious, then why does my Service manual say that the torque for an 01 88 TC is 82 ft lbs @3500 rpm???? It looks like that screen shot came from Knight Riders? web site? I have gotton a lot of bad information from that web site... It must be true, it was on the internet????