[Dig50]

Need a liitle help with some of the available mods that can be done. I browsed the inexpensive mod thread, seems not to much for the 05 ST.
What I was looking at doing to her;
1) sprocket change front and rear, but I don't know what is the spread between being a sissy ( one tooth up or down) and being insane. What manufacturer to use.....Vortex??

2) Read alot of talk about fuel regulator increases, is that a possiblity.

3) TORs exhuast, but there's no concrete stands on it being worth the money or not......I did see and hear a Wolf sys. It looked nice but I was informed the quality is questionable

Really need some help so I won't get chewed to shredds by my ex-FZ1 buddies

 

[Tankman]

Dig50
welcome to a great group of riders. A lot of Sprint owners are saying that an 18 tooth sprocket is a great improvement. Haven't heard anything about fuel regulator increases. As for the TOR exhaust I had a shop bike for a day with a bog stock exhaust on it. Two weeks later I rode the same shop bike but this time they had fitted a TOR and there was a marked difference in sound and performance. There are many and various extras you can add to your bike, I try and stick to Triumph accessories but you will work out which is best for you. Enjoy your new toy mate, and ride safe.

Cya The Tankman

 

[playinthestreet]

I think fuel pressure issues were with the 04 and previous bikes? The 18t front sprocket for your 05 would be the place to start. Makes the bike more "drivable" in the lower rpm range. You can get an 18t sprocket from J-T Sprocekts for approx. $25. I'd do that first and make your decision as to whether or not to change the rear after you've ridden it with the 18t front. When I bought my 05 new I had the TOR fitted before I picked it up. Same with my 99. Performance is only marginally improved but it's worth it for the sound.

 

[flyingbiker]

I'm thinking of doing the sprocket switch and just found the link
Sprocket
Any special tools/skills required? I don't (yet) have a torque wrench but suspect this may be a good excuse for buying one - assuming there is a documented torque setting!

 

[playinthestreet]

I'm not where I can go out in the shop and confirm, but I think it's a 36mm socket. Under $10 at Sears. I borrowed an electric impact as it will spin off the nut simply with the bike in gear. If you use a ratchet/breaker bar you'll likely have to put something thru the rear wheel to hold it. I reinstalled the nut with the same setting of the impact that took it off. Not too scientific, but, that's me.

 

[gavinb]

I have the 18 tooth front sprocket on my 05 sprint and it works a treat.
Also fitted the Triumph TOR can and it makes a big difference, sounds fantastic and much better performance, it also fixed the on/off throttle response at low speed making slow corners easier.
Enjoy your riding
Cheers Gavin. :-D :-D

 

[ruscook]

Gav what's the cost of TOR in Oz?

Russ

 

[MNSpintST]

1. Sprocket.. Some ppl swear by it.. Others say its not a huge difference. Probably not a bad mod for the money. Non abs bikes will need some ECU programming to get the speedo right..


2. The fuel pressure is fine.. On the older bikes the HACKS done to the FPRs were just a bandaid to what a ECU reflash could fix. Altering fuel pressure changes fuel delivery the same across the board w/o regard to RPM or load on the engine. The only time I have bumped fuel pressure on any EFI engine is when I have made alot of changes to the engine to boost its volumetric efficiency. I increased the pressure to keep things like injector duty cycle and injection timing in check.. Larger injectors also accomplish this.. Basically if you have not ported and polished the head, modded the throttle bodies, installed a header back exhaust or anything major like that.. Leave the fuel pressure alone.

3. Going with a different muffler is nearly manditory.. Its like a ducati without the termignolis.. It just does'nt sound right with the stock pipe on it.. With the TOR or the wolf it sounds nice.. I was dissapointed in the Wolf/Trident method of going 3-1 flow wise into the pipes.. I was expecting either a 3-1 collector (reversed) or a boxed expansion chamber with three outlets leading to the cans.. I was toying with the idea of modding the insides of a muffler I opened up... Now I think it will be mostly used as a fitment model to R&D something much cooler from scratch..

One major suggestion is a chain oiler. Another a rear hugger.. Third 675 master cylinder.. Maybe some of the hotter H7 bulbs for the lights or a HID retrofit (not a kit) like I am doing..

 

[Beach]

I'm a big fan of the 18t front sprocket. It worked very well on my 05 ST, the single best value for money performance mod you can do. It even improved fuel economy by about 50kms per tank commuting.

I put a 17t on the front of my 99ST. You could even try 18t front and 44t or 45t rear for even more acceleration if you are so inclined.

My speedo is not effected. I havent checked it with a GPS but riding along side other Sprints and matching speed has me believing its still as accurate as when it came from the factory.

Definately get a rear hugger.

As with the previous series, they respond well to upgrading the suspension.

Its interesting that our American cousins routinely talk about torque settings when replacing nuts and bolts. Its not something I've ever bothered with except for engine heads etc.

Brett.

 

[MNSpintST]

I work on aircraft.

I swear now after doing it for a while that I'd take a tq wrench with me to mount a new toilet seat at home..


IMHO.. Use a tq wrench whenever possible..


I'd also like to see deeper 1st gearsets in the transmissions...

 

[Husky23]

On 2006-11-16 04:55, MNSpintST wrote:

1. Sprocket.. Some ppl swear by it.. Others say its not a huge difference. Probably not a bad mod for the money. Non abs bikes will need some ECU programming to get the speedo right..

2. The fuel pressure is fine..

3. Going with a different muffler is nearly manditory..

One major suggestion is a chain oiler. Another a rear hugger.. Third 675 master cylinder.. Maybe some of the hotter H7 bulbs for the lights or a HID retrofit (not a kit) like I am doing..

I like these mods...

1. 18T sprocket, yeppers will do.

2. Performance exhaust...I'd love to shed it wieght and restrictiveness...but not sure about shelling out that many clams at the moment.

3. Master Cylinder probably, although I really don't have an issue with my braking.

4. Bulbs, for sure.

5. Chain oiler....hmmmm, any links?

6. I also want to work on the suspension; front and rear.

 

[Dig50]

Is the TOR exhaust the one listed as a silencer(off road) on Triumph's web page??

Is the 675 master cyclinder a direct fit??

W/ all these great ideas nobody's getting holiday gifts my house this year except for the Sprint.

 

[SoCalSprint]

check out this chain oiler, inexpensive and effective.
www.loobman.com

 

[ruscook]

On 2006-11-17 23:55, SoCalSprint wrote:
check out this chain oiler, inexpensive and effective.
www.loobman.com

Yep SoCal this is the one I've got <AUS$50 delivered via their website. Overall I'm happy with it. Happier than the scottoiler (I had on the last bike) which I think is massively overpriced. The only thing to beware of is in hot summer it can setup a sort of continuous feed. Tis can be stopped by pricking a hole with a heated needle into the tube to create an "air gap" but takes a little bit of fine tuning.

You can see pics of it installed on my Sprint here: Russ Sprint Site - scroll down for loobman pics

The rest of my cheap and mainly useless mods (from f to r) are:
1) Eyes (all the better to see with)
2) New blue lights - cos the glare means I'm seen! (really cos I blew the LHS light)
3) Eagle Touring Screen - a must for 6' and more!
4) thermometer
5) compass
Cos with these last 2, I now know where the #*&[email protected] I'm supposed to be, what direction it is, how hot it is where I am (whilst in the wrong location) and only the vaguest ideas of how to get from here (the unknown location) to there (where I'm supposed to be north I think, or is it south and then west from here) Combine these with the Sprints clock and I also know how late I am, but not when I'll get there :hammer:
6) Heated grips, so if the thermo is showing low C's I can press a button and at least part of me will be warm.
7) Throttle rocker for those long slab runs
8) Tank protector (cos it needs to hold up the beer gut) without scratching the tank
9) Loobman (as described above)
10) Ventura bag and rack

and drum roll number eleven useless item on my Sprint
11) Black number plate surround (frame) cos it slides to the right and covers up half of the first letter

Russ

 

[Yimm]

On 2006-11-15 19:28, playinthestreet wrote:
I borrowed an electric impact as it will spin off the nut simply with the bike in gear. If you use a ratchet/breaker bar you'll likely have to put something thru the rear wheel to hold it.

Holding the rear wheel or jamming the chain with something soft is a much safer way to take off the nut than using an impact wrench. The gear teeth are all case hardened and when you apply an impact to the output shaft, it slaps the gear teeth silly and you risk a chipped tooth, or so I was told by an old GP tuner friend. He was a pretty good tuner. Worked for Erv Kanemoto among others.

 

[Dusty]

I don't want to repeat all of the above excellent advice, except to make two points:

1) Many years ago, at the tender age of 17, I managed to break my top yoke by over-tightening the pinch bolt after servicing the front forks. As a result of that early experience, and working as an engineer on petrochemical plants, I, like MN SprintST, always have a torque wrench handy. Just remember to lubricate the threads to get a reasonably accurate result.

2) I also agree with Yimm that an impact wrench is a last resort. A steady application of torque, assisted by an extension bar, should be tried first. I managed to change my sprocket by sitting on the bike and applying the back brake while pushing down hard on a 500mm extension bar on my socket wrench. Centre stands are great things!
I found the 18T mod to be worthwhile; the bike is much easier to ride,round town in 2nd gear, especially.

 

[HiVel]

On 2006-11-18 10:25, Yimm wrote:

On 2006-11-15 19:28, playinthestreet wrote:
I borrowed an electric impact as it will spin off the nut simply with the bike in gear. If you use a ratchet/breaker bar you'll likely have to put something thru the rear wheel to hold it.

Holding the rear wheel or jamming the chain with something soft is a much safer way to take off the nut than using an impact wrench. The gear teeth are all case hardened and when you apply an impact to the output shaft, it slaps the gear teeth silly and you risk a chipped tooth, or so I was told by an old GP tuner friend. He was a pretty good tuner. Worked for Erv Kanemoto among others.

Also you CAN knock the alternator parts (Magnets?) loose and that will cost you big $$( as well as the gears! )