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john c
AIRDRIE,
United Kingdom
Posts: 29
Premier Member
Daytona 955i (04->)
12 May 2008 23:19 |
hi looking for some help please
i have a 05 plate 955i with piss poor power. from day one i have
always felt that my old thundercat was a quicker bike but i have never had the chance to try the 955 up against another bike in
earnest till last week.
one of my mates has just got a stock GSXR 750 on a 97 plate
and it smoked my bike of the mark and top speed.
my daytona has a under seat exhaust fitted but its not one from a established make . it was hand made by a company that makes one offs for cars
my thoughts are that the exhaust is where i am loosing power
but this being my first triumph and having no previous experience with the daytona i cannot be sure that my bike is under power or that the 955 was never a mach for the GSXR 750
it also has a bad tendency to tank slap around 150 although the 750 was long gone by the time i got to that speed
any thoughts greatly received.
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Kerry
foot of Mt Taranaki,
New Zealand
Posts: 81
Premier Member
Daytona 900 (93-96)
13 May 2008 02:52 |
Hi John, can you get access to better exhaust for a quick change over & try out?
-Check tyre pressures & tyre condition, try 41psi rear, 36psi front,
-Check spring pre-load on the forks, wind them off to lower front ride height if required
-Check fork bushings
-Check steering head for play & free feeling steering lock-to-lock. Overtightened steering head can cause this too.
-Check chain alignment
-Check swingarm
-Check that you're not putting to much weight on your bars
-Have suspension set up to your weight John. If all components are in good condition, this alone will transform the handling.
Your Daytona should get smoothly to approx. 260kph, bit of a push should see 270 on the clock
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X-Man
Chesterfield/Derbys,
United Kingdom
Posts: 9,851
Premier Member
Enthusiast
13 May 2008 08:53 |
I'd lay odds on the exhaust.
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john c
AIRDRIE,
United Kingdom
Posts: 29
Premier Member
Daytona 955i (04->)
13 May 2008 19:58 |
thanks kerry dont have one to try other than the origenal
but i think i would need to re-map the E C U
i think the exhaust is the reson for the poor handlen
the bike did not handel well when i first got it solely down to the bridgesones but in my atempts to get the best out of the suspension i found that the exhaust was melting the hugger
forceing me to increase the rear preeload.
i have now backed all the settings back and set the preeload for my weight . and changed the front tyre to a metzeler rennsport.
not tried it at speed yet but it dose seem to be more stabel.
quick question what would be the best exhaust to replace the one on my bike
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Graham.
Glasgow,
United Kingdom
Posts: 273
Premier Member
Daytona T595 (97-98)
13 May 2008 22:05 |
During the time I was having an exhaust made, I fitted a set of “just to fit the noo headers ” fab, up and fitted , they looked not unlike stock but they made the motor run like a total bag of s**T… so my money to would be on the exust system too..
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Kerry
foot of Mt Taranaki,
New Zealand
Posts: 81
Premier Member
Daytona 900 (93-96)
14 May 2008 10:17 |
Hell, exhaust effecting the tune AND the handling! won't see that very often,lol. Glad you're getting it sorted:)
Really, and some will disagree, I just love Triumph's performance can's and TuneBoy combination. Good sound, excellent power!
Second choice, Micron's. Third choice a pipe made here in NZ, Harris. Though I think they're now called 'Zorts".
A lot of guys go Scorpion, though I'm less keen. Bit like oil really, everyone has a preference!
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Kerry
foot of Mt Taranaki,
New Zealand
Posts: 81
Premier Member
Daytona 900 (93-96)
14 May 2008 10:21 |
hehe, X-man solved all your woes in one very short line:) And for goodness sake, put that bloody Suzie well back in your mirrors eh, let us know how your changes work out John.
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Kerry
foot of Mt Taranaki,
New Zealand
Posts: 81
Premier Member
Daytona 900 (93-96)
14 May 2008 10:21 |
hehe, X-man solved all your woes in one very short line:) And for goodness sake, put that bloody Suzie well back in your mirrors eh, let us know how your changes work out John.
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X-Man
Chesterfield/Derbys,
United Kingdom
Posts: 9,851
Premier Member
Enthusiast
14 May 2008 13:02 |
my comments were related to the engine lack of power only of course. Too many variables to start diagnosing tank slappers at 150mph.....
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john c
AIRDRIE,
United Kingdom
Posts: 29
Premier Member
Daytona 955i (04->)
21 May 2008 22:35 |
progress so far
tried the standard exhaust at the weekend but it was no good
the bike required two weeks notice in writing if you wanted to accelerate
but rather than put the under seat exhausts back on i fitted just one of the two silencers to the bike .
its now quieter and seems to have a little more power in the mid range . cant say if this has sorted it out yet but the blue flames are cracking . tried to post a video but my phone takes the wrong format for this site .
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Kerry
foot of Mt Taranaki,
New Zealand
Posts: 81
Premier Member
Daytona 900 (93-96)
22 May 2008 09:11 |
Sounds lean John? would explain lack of power, and the blue flames from the pipe. Are the blue flames during acceleration? Pity we can't see & hear it via a vid.
A look at wideband A/F readings and a dyno run would go a long way to start pin pointing your problem John. May be simply that the wrong map is currently loaded for your exhaust. Is there a dyno guy close by that is TuneBoy equipped?
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Ed Lewis
South Central PA,
USA
Posts: 44
Premier Member
Daytona 955i (02)
22 May 2008 14:32 |
[edited]:
Get your TPS tested and/or adjusted. Have the dealer or Tuneboy friend zero the throttle afterwards. Did wonders for my 955i's throttle response.
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