I have been looking at improving my bike's performance. Having done a lot of research I seem to have come a full circle. I would welcome your thoughts and ideas.
Goal:
More torque in the 3000-6000 range. More HP above 6000 would be a bonus but rarely used and is not a primary goal.
Current mods on my 09 EFI America:
Staintune straight through pipes, K&N filter, Polaris bellmouth, airbox unmodified, AI removed, O2 sensors disabled, TOR triumph tune 20184 modified with dyno and tuneboy.
Riding style:
Aggressive but usually within 3000-6000 rpm. This is partly due to the fact thats where my torque is tuned in.
Current dyno results:
53.5 HP and 50.3 ft/lbs torque (sae)
My torque seems quite good compared to other 865s and 790s. I had my tuner target the mid range revs with the trade-off of losing at the top end.
Airbox internal baffle:
I recently discovered there is a baffle in the airbox and that its removal improves intake flow almost as good as installing pods (which I don't want to do atm). So I am going to remove the airbox baffle which will require re-tuning. I thought that while I'm at it I should look at some other performance upgrades.
Cams:
So I have investigated cams (Thunderbike and TPUSA 813s). These are a significant investment and after research it seems they won't meet my goals. Both are targeting top end HP and any mid range torque gain is small for the price.
Billet intakes:
TPUSA make some
billet EFI intakes which are reasonably priced but I don't know if they will produce any benefit in my setup.
Big Bore upgrades:
A bit too pricey atm. Maybe when the engine is older (currently 22,000kms).
Ported head:
I don't really know anything about this, the cost or where to get it done.
Dynotune:
I need an EFI dynotune using either tuneboy or tunecu. The cheapest option would be buying a TTP tune but they won't have one available for the America until next year. The only suitable tuner I have found in Brisbane wants $550 which I may have to go with. So if I'm spending $550 on a tune is there any other performance upgrade I should be considering?
Sorry this is lengthy but it's a waste of time without all the info.
