Back (almost) on topic, having seen people claiming the figures are fiddled I remembered I had my old ZZR1400 on two dyno's, originally on a Dynojet locally and later on Hilltops old dyno.
In a moment of slack at work I dug out the results, on the original dyno it showed 171BHP before remap (Power Commander) and 174BHP After (Main gain was from removal of secondary butterflies which gave 40% increase in low down torque by removing restrictions)
I later wanted rid of the Power Commander and went to Hilltop who also made other claims about individual cylinder / gear mappings, like a lot of folk I really have no idea what they did, but I do have the numbers and my arse dyno.
On arrival at Hilltop it showed 162 BHP, so had either lost a dozen pony's or Hilltops Dyno was lower reading than the Dynojet (more likely) Geoff also noticed the Power Commander was not making any changes, so it looked like the last guy to work on it had forgotten to save the changes back to the unit, so Hilltops 162 is probably compared to the original 171 - 5% variation between different dyno's on different days at different mileages is reasonable.
Once Geoff had finished I had a marginal gain of 4BHP up to 166BHP, some might say a waste of money, but I had safe fuelling (with the flies removed they could run very lean uncorrected) a small improvement in power and what was a noticeable smoother engine, less vibes through pegs and more even tickover. I had also manage to ditch the Power Commander which meant one less thing to go wrong and some extra space under the seat.
If anyone else wants to test this "fiddled run" theory all they have to do is go to a local dyno centre and pay for a quick power check before visiting Hilltop, then go back after Hilltop and get another test done.
Something fervently to be wished for; if for no other reason than to stop these threads once and for all.Back (almost) on topic, having seen people claiming the figures are fiddled I remembered I had my old ZZR1400 on two dyno's, originally on a Dynojet locally and later on Hilltops old dyno.
In a moment of slack at work I dug out the results, on the original dyno it showed 171BHP before remap (Power Commander) and 174BHP After (Main gain was from removal of secondary butterflies which gave 40% increase in low down torque by removing restrictions)
I later wanted rid of the Power Commander and went to Hilltop who also made other claims about individual cylinder / gear mappings, like a lot of folk I really have no idea what they did, but I do have the numbers and my arse dyno.
On arrival at Hilltop it showed 162 BHP, so had either lost a dozen pony's or Hilltops Dyno was lower reading than the Dynojet (more likely) Geoff also noticed the Power Commander was not making any changes, so it looked like the last guy to work on it had forgotten to save the changes back to the unit, so Hilltops 162 is probably compared to the original 171 - 5% variation between different dyno's on different days at different mileages is reasonable.
Once Geoff had finished I had a marginal gain of 4BHP up to 166BHP, some might say a waste of money, but I had safe fuelling (with the flies removed they could run very lean uncorrected) a small improvement in power and what was a noticeable smoother engine, less vibes through pegs and more even tickover. I had also manage to ditch the Power Commander which meant one less thing to go wrong and some extra space under the seat.
If anyone else wants to test this "fiddled run" theory all they have to do is go to a local dyno centre and pay for a quick power check before visiting Hilltop, then go back after Hilltop and get another test done.
Something fervently to be wished for; if for no other reason than to stop these threads once and for all.
Something fervently to be wished for; if for no other reason than to stop these threads once and for all.
I did offer to pay the costs of BSD (measure only) and Hilltop (same day) on the proviso that if the Hilltop pre numbers were significantly lower, then others cover both charges - there's enough supporters on here that you'd have thought it a simple....
Although correction factors should equal things out like atmospheric pressure and temperature, altitude etc.I did offer to pay the costs of BSD (measure only) and Hilltop (same day) on the proviso that if the Hilltop pre numbers were significantly lower, then others cover both charges - there's enough supporters on here that you'd have thought it a simple....
Never will they stop ... it’s like a recurring nightmare ....
But I’ve sold my soul to the devil... and I’m going on Saturday
You will not regret if you manage your expectations. No altering of the air, and or fuel ratio is going give you 15 to 20bhp gain. What it will achieve is marginally more power, remove flat spots and make the bike smoother. Also bear in mind a mudsling is £120 for a bit of plastic. With every mile you ride and the longer you keep the bike makes Hilltop cheaper.
It isn't the peak horsepower that counts, but the area underneath the graphline,
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I thought it was established (and you acknowledged) that it was a poor idea?
I've said it before, but this discussion gets more like one about alternative medicine every time its resurrected.
We're now discussing softer and softer end points, not BHP, but elimination of 'flat spots', 'low/mid range torque', 'smoother'.
Please keep it coming