Horsepower increases? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 38 Old 05-22-2019, 10:54 AM Thread Starter
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Horsepower increases?

Haven’t been on in a while. I was just wondering if anyone managed to find some hidden ponies. Anyone cracked the ecu yet or trying?
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post #2 of 38 Old 05-22-2019, 11:09 AM
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Both Stroms pretty much are what they are, you could however gain maybe 2 or 3 extra hp with full system and a tune......not worth it to me though, the 1000 is very underpowered compared to it's direct competition.
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post #3 of 38 Old 05-22-2019, 05:15 PM
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Not hidden ponies but I fitted a PCFC, while out of the box it was not a great thing I did have it tuned on a dyno and got some good results.

I don't have the stock numbers I only have the numbers with the out of the box PCFC & after the tune.

Max torque 70ft-lbs @ 6500rpm moved to 74ft-lbs @ 3700rpm

Torque @ 2200rpm moved from 29.94 up to 49.45ft-lbs

Max HP from 94-98

It has made the bike much more fun to ride.

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post #4 of 38 Old 05-22-2019, 07:00 PM
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I've been told that shedding 12 lbs., whether it be belly fat, or stripping unnecessary weight from the Vstrom itself, equals 1 hp gain



You can also gain HP by riding in colder weather, about 1hp for every 5 degrees

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post #5 of 38 Old 05-22-2019, 07:04 PM
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Quote:
Originally Posted by OydnaR View Post
You can also gain HP by riding in colder weather, about 1hp for every 5 degrees
That's a great idea, but I'd think that you'd also be wearing more and/or warmer clothing in colder weather and that extra weight would negate some of the horsepower gains.
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post #6 of 38 Old 05-22-2019, 07:19 PM
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Quote:
Originally Posted by leximon View Post
That's a great idea, but I'd think that you'd also be wearing more and/or warmer clothing in colder weather and that extra weight would negate some of the horsepower gains.

you might lose a half horse for the extra layer


as an example of the temperature significance, my old SV650 that needed clutch action to wheeze a wheelie, in 90 degree weather, could get roll on wheelies in 2nd gear, in 10 degree weather


ask anyone into sleds about how much better engines perform the colder it is
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post #7 of 38 Old 05-22-2019, 07:43 PM
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I was thinking some SV1000S cams from a 2005+ and lightening the flywheel may wake this bike up.

SV flywheel doesn't work, different taper size.

You can alter the IAT sensor to make it leaner or richer. NTC thermistor in the air box. Cheap resistors could make it run richer or leaner.

I also wonder how the oxygen sensor would keep changes from being made with a PC5 or something.

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Last edited by D.T.; 05-22-2019 at 08:24 PM.
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post #8 of 38 Old 05-22-2019, 08:02 PM
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Quote:
Originally Posted by Rolex View Post
Not hidden ponies but I fitted a PCFC, while out of the box it was not a great thing I did have it tuned on a dyno and got some good results.

I don't have the stock numbers I only have the numbers with the out of the box PCFC & after the tune.

Max torque 70ft-lbs @ 6500rpm moved to 74ft-lbs @ 3700rpm

Torque @ 2200rpm moved from 29.94 up to 49.45ft-lbs

Max HP from 94-98

It has made the bike much more fun to ride.
This seems quite amazing, all from manipulating the air/fuel mixture? What is your fuel economy like?

Personally I think Suzuki tuned this bike with the traveller in mind. Performance is good, not mind boggling.
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post #9 of 38 Old 05-22-2019, 11:33 PM
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First I have to say I never ever ride for economy, if I have the chance to rip open the throttle I will.

Car or bike I do not have a commute so if I'm burning fuel I'm having fun.

Before the tune I was burning on average 5.5lt per 100ks after the tune I'm burning 5.4lt per 100ks.

The tune was built for fun and to move the torque into a more usable space not to save fuel.

Because of speed limits I spend a lot of time around 120kph so the bike was tuned to run a little on the rich side at that speed.

Some of the 19 rides in my shed
2014 V2, Snoopy
2009 Wee, Pumbaa the pig
WR450F, The Blue Postie Bike
YZ250N smoker with rego, Stinky.
Yamaha MT09 (FZ09), The Scud missile.
Club Lead not Club Med.
He with the most toys wins.
Out of my depth in a puddle.
Live life on the edge you will see more that way.
Ridding a motorcycle keeps things in balance.
At the end of each trail and at the end of each day history is made.
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post #10 of 38 Old 05-23-2019, 12:31 AM
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Has anybody ever run, or have access to, Avgas?

I have. I used it for my RMX250, and would put any leftovers in my GSXR1100. They would start easier, idle smoother, and GO. I estimate an extra 15-20HP on the GSXR1100. Totally NOT an imaginary impression.

It would turn the spark plugs green. The gains were across the board. I did not own a V-Strom then.

Of course, illegal for on road use.

2010 Weestrom; 2017 Kawasaki Versys-X300; 1988 Suzuki GSXR1100
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