Remap by Hilltop Motorcycles

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It was at all speeds I could just roll on the power for overtakes where before I was changing down to do the same thing.

Interesting. I'll try some further side by side comparisons, v low revs in 5th and 6th pick-up and see how much of a difference there is from that.
 
right ... who's selling tickets to this event? :popcorn

I'll sell tickets, maybe it will help pay for some new tyres, or at least a sandwich ;)

What's the expression? - "like two bald men in a boat without oars, arguing over a comb" :)
 
Interesting. I'll try some further side by side comparisons, v low revs in 5th and 6th pick-up and see how much of a difference there is from that.

I think the real increase in performance comes from the de-cat headers and not the map as the twin cam engine ecu is setup quite good from the factory



Here is a graph from the Akraprovic website showing the increase in power
http://az79640.vo.msecnd.net/akrapovicbppmultimedia/424e431582734146b237487fea64ab8c.pdf

If going for more power I would do the headers first then a remap either with hilltop or if you want it easy to revert to standard with the power commander.

Doing the remap on a standard bike will not make much difference to the power output but will just smooth out the engine.
 
I think the real increase in performance comes from the de-cat headers and not the map as the twin cam engine ecu is setup quite good from the factory



Here is a graph from the Akraprovic website showing the increase in power
http://az79640.vo.msecnd.net/akrapovicbppmultimedia/424e431582734146b237487fea64ab8c.pdf

If going for more power I would do the headers first then a remap either with hilltop or if you want it easy to revert to standard with the power commander.

Doing the remap on a standard bike will not make much difference to the power output but will just smooth out the engine.

While that makes sense - it completely contradicts the increases in power outputs that a lot of members have seen on the before and after charts for their specific bikes following the remap. The Akra can and headers makes very little difference in the "power figures" on most modern bikes compared to 15-20 years ago, as the manufacturers get better at providing decent exhausts as standard.

Quite frankly, if a bike had even only 15bhp more from a remap - this should be significantly better than 5-10bhp from a full system and I think Akra's quote on the website is a lot less than 10bhp gain for a full system - actually, just opened your link and it confirms that.

My bike showed an increase of over 20bhp at the rear wheel - & I can tell you that it had no performance advantage against an identical but standard bike - that shouldn't be possible ;)

I'd be tempted to spend the extra and go for decat, Akra and power commander, but for max of 10 bhp it's hardly worth it, unless you need/want smoother fuelling.
 
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Bike one Triple Black - no remap
Bike two Triple Black - remap

My conclusion is a very surprising one and certainly does not show any difference in bhp or torque on the road. i.e. no performance difference between the two bikes - in fact you would swear the two bikes had identical power - as we weigh about the same there was no advantage in power to weight either.


States there was no real on road difference after the remap



The point I am trying to make is with the headers on the same engine bike the twin cam (TU) but 2012 model they is a seat of the pants on the road difference that I put down to the headers and not the map.

The older engines (MU) the factory mapping was very rich and a remap does make a big difference.

Steve
 
An interesting comparison from Wilsdorf - and in contradiction to the Youtube video of the three Geordie lads getting their sportsbikes mapped - and strutting out of Hilltop, chuffed that their bikes had "an extra 20bhp - bonnie lad!"


I'd be interested in some more data from bikes that have been remapped:

Packer raised an interesting point, by way of a quote from another forum - regarding the propensity for final-drive failures, and the possibility that the shortened stroke engine/higher pulses in the drive-train (of the 1200 engine) - could be the cause.

Final Drive Failures

One thing about boosting performance by Air-filter/decat/Powercommander etc - is that if it's shown that it is detrimental to the health of the bike -

a) You can remove the bits, and sell them on for about 50% cost

b) It doesn't cost you a further £££ to get the bike returned to normal.

Just a thought................ :augie


Al :)

oh! - My money's on Trev :thumb2
 
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My bike showed an increase of over 20bhp at the rear wheel - & I can tell you that it had no performance advantage against an identical but standard bike - that shouldn't be possible


Your bike might have had a problem and been down 20hp and the remap has just corrected or masked the problem?

If you bike has 20bhp more than the other standard bike it must show 20bhp is nearly 20% more.

The only way to prove your bike has 20 more it to rolling road both bikes at the same time do some bikes come out of the factory with 20% more power than others?
 
This post

Quote

Bike one Triple Black - no remap
Bike two Triple Black - remap

My conclusion is a very surprising one and certainly does not show any difference in bhp or torque on the road. i.e. no performance difference between the two bikes - in fact you would swear the two bikes had identical power - as we weigh about the same there was no advantage in power to weight either.


States there was no real on road difference after the remap



The point I am trying to make is with the headers on the same engine bike the twin cam (TU) but 2012 model they is a seat of the pants on the road difference that I put down to the headers and not the map.

The older engines (MU) the factory mapping was very rich and a remap does make a big difference.

Steve

Again, I say that makes sense - but yet again this goes against what members on here have been seeing on their older MU engines, as they have been seeing similar power increases as those for the twin cams after a remap.

All I am saying is the same bike with 10bhp more (given similar, or even better torque) would be noticeably quicker on the road - for some reason - mine with well over 20bhp increase isn't ymmv.
 
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My bike showed an increase of over 20bhp at the rear wheel - & I can tell you that it had no performance advantage against an identical but standard bike - that shouldn't be possible


Your bike might have had a problem and been down 20hp and the remap has just corrected or masked the problem?

If you bike has 20bhp more than the other standard bike it must show 20bhp is nearly 20% more.

The only way to prove your bike has 20 more it to rolling road both bikes at the same time do some bikes come out of the factory with 20% more power than others?

My bike showed very similar before and after gains/figures to all the GS's I have seen remapped on this forum. The fact it performs so closely to a factory standard twin cam suggests to me that they are putting out the same/similar power.
 
I had mine done a few weeks ago. For me it's a huge improvement. But it's about fuelling, throttle response, smooth pick up, rolling on in a higher gear smoothly ... Does my bike go any faster? I dunno, and I don't really care.
Is the throttle crisper, a bit more precise ? Yeah .. loads.

The real benefit is stuff like town work, driving out of a roundabout, a little squirt her and there in third passing traffic.

It's not about speed, it's about blunt scissors v sharp scissors. :thumb2
 
I had mine done a few weeks ago. For me it's a huge improvement. But it's about fuelling, throttle response, smooth pick up, rolling on in a higher gear smoothly ... Does my bike go any faster? I dunno, and I don't really care.
Is the throttle crisper, a bit more precise ? Yeah .. loads.

The real benefit is stuff like town work, driving out of a roundabout, a little squirt her and there in third passing traffic.

It's not about speed, it's about blunt scissors v sharp scissors. :thumb2

Yes, I would agree - that is exactly what you would/should expect from a remap.

I simply expect a 20bhp more powerful bike to be noticeably faster, as I have experienced on previous bikes with lesser power increases.
 
just a quick one i have had on rare occasions a stand bike put down 98bhp at the back wheel but be naf at lower end ,out of the 100s i have remapped i have seen less than 5 in that range
 
Again, I say that makes sense - but yet again this goes against what members on here have been seeing on their older MU engines, as they have been seeing similar power increases as those for the twin cams after a remap.

All I am saying is the same bike with 10bhp more (given similar, or even better torque) would be noticeably quicker on the road - for some reason - mine with well over 20bhp increase isn't ymmv.

It would be interesting to see what your mates standard bike produces on that same dyno.
 
It would be interesting to see what your mates standard bike produces on that same dyno.

Perhaps, maybe - but the same bike isn't that much quicker than my MY08 bike or indeed our MY04 bike, so I doubt that it is an unusually strong version of the breed than any other usual standard twin cam GS.
 
I would expect a clear improvement on the road with a 20 bhp power increase - smoothness is all well and good but its subjective - my standard twin cam is smooth enough.

However, I would like a genuine 20 bhp increase in power :nenau
 
I would expect a clear improvement on the road with a 20 bhp power increase - smoothness is all well and good but its subjective - my standard twin cam is smooth enough.

However, I would like a genuine 20 bhp increase in power :nenau

Me too - another 20bhp (and maybe 10-20kg off) would transform the GS in my opinion. I suspect liquid cooling to be the answer to the extra 20bhp, but maybe not the weight.
 
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