Sprinting

General Discussion Forum for TRX Enthusiasts...

Moderators: trixynut, Mincehead, dicky, phuk72, Jak, Kevtrx849

User avatar
cycloneranger
Site Sponsor
Posts: 115
Joined: Tue Apr 10, 2012 8:10 pm
Location: Southampton

Sprinting

Post by cycloneranger » Sun Jun 23, 2013 10:34 am

As i can no longer ride track days i was looking at getting into sprinting. To start off with i was thinking about using the TRX, my feeling is that the torque and fluid power delivery would be great for starting out on. I'm not looking to set fastest times, just have a bit of fun.
My question is....Do we think the clutch will be up to the job? and is the motor likely to eat it's crank? The engine is low millage so the bearing clearances should be OK.
Keep calm and topp up the oil

misterdimwiddy
TRX-Enthusiast
Posts: 474
Joined: Thu Apr 08, 2010 6:14 am
Location: Ware, Hertfordshire

Re: Sprinting

Post by misterdimwiddy » Sun Jun 23, 2013 10:40 am

I feel that the TRX clutch is mighty strong. No problems at all with 90rwhp and track use and my clutch has done 40k+ miles.

As for the crank, Mince commented a while back that the Rex does not have a weak crank.

The motor is however sensitive to oil level and oil quality (routine maintanence) and it is neglect that will lead to bearing failure.

Can't see that sprinting will do any damage at all as long as you are not revving through the redline.

User avatar
phuk72
Site Sponsor / Administrator
Posts: 3522
Joined: Thu Jan 06, 2005 1:47 pm

Re: Sprinting

Post by phuk72 » Mon Jun 24, 2013 8:01 am

The TRX has a very tall 1st gear so will put stress on the clutch with continual fast starts. But nothing to worry about mechanically with that or any other part of the engine as long as you maintain regular service intervals.
Image

User avatar
cycloneranger
Site Sponsor
Posts: 115
Joined: Tue Apr 10, 2012 8:10 pm
Location: Southampton

Re: Sprinting

Post by cycloneranger » Mon Jun 24, 2013 8:35 pm

That's good new, Yamaha's have a bit of a reputation for weak clutches around the 90's. Nice to know they got it right with the TRX :D
I was planning on changing the gearing a bit to give it a bit of an easier time off the line.
Keep calm and topp up the oil

User avatar
fung
Site Sponsor
Posts: 1604
Joined: Mon Aug 23, 2010 2:00 am
Location: Gold Coast. South East Queensland.

Re: Sprinting

Post by fung » Mon Jun 24, 2013 9:41 pm

What do you guys call Sprinting ?
I WOULD RATHER WEAR OUT THAN RUST

User avatar
Snod Blatter
TRX-Enthusiast
Posts: 405
Joined: Sun Sep 16, 2012 8:40 am
Location: Worksop, UK

Re: Sprinting

Post by Snod Blatter » Mon Jun 24, 2013 9:54 pm

cycloneranger wrote:That's good new, Yamaha's have a bit of a reputation for weak clutches around the 90's. Nice to know they got it right with the TRX :D
They say (you know, those people) that the TRX clutch is the same as that found in the FZR1000 but without the stabilising ring around the basket, whatever that is. Possibly the explains the bad noises that can result from quick take offs uphill (that's normal, right?). Anyway the point being the clutch will likely be just fine with anything you can throw at it.
'95 4NX with K&N filter, Motad Venom cans, YSS PD valves, Ohlins fork springs, 530 C+S, Green CDI, 11/16 radial master cylinder, +30mm jack up dog bones. Enjoyable money pit.

User avatar
TedsTRX
Site Sponsor
Posts: 23
Joined: Mon May 20, 2013 9:27 am
Location: West Australia

Re: Sprinting

Post by TedsTRX » Tue Jun 25, 2013 1:08 am

fung wrote:What do you guys call Sprinting ?
I think that sprinting is a bit like drag racing, with only 1 bike at a time, or like a hill climb without a hill, where you race the clock rather than an opponent. Don't see or hear much of it in Oz.

User avatar
fung
Site Sponsor
Posts: 1604
Joined: Mon Aug 23, 2010 2:00 am
Location: Gold Coast. South East Queensland.

Re: Sprinting

Post by fung » Tue Jun 25, 2013 2:55 am

After the Surfers Paradise Raceway was closed, the MG car club used to put on a horizontal hillclimb using the back half of the circuit.
sort of like leyburn or murwillumbah's speed on tweed.
I WOULD RATHER WEAR OUT THAN RUST

cobbadiggabuddyblooo
Site Sponsor
Posts: 6809
Joined: Thu Aug 28, 2008 9:19 am
Location: Brisbane,Australia

Re: Sprinting

Post by cobbadiggabuddyblooo » Tue Jun 25, 2013 6:11 am

Talking to Neil Spalding from Sigma , he made me aware even with the slipper clutch I have with 1 extra plate than the std TRX he recommended using R6 plates (Fiction and steel) if doing Racestarts.. If not the std Trx steels would be fine.
laughter is the best medicine

User avatar
cycloneranger
Site Sponsor
Posts: 115
Joined: Tue Apr 10, 2012 8:10 pm
Location: Southampton

Re: Sprinting

Post by cycloneranger » Tue Jun 25, 2013 8:25 pm

fung wrote:What do you guys call Sprinting ?
Sprinting is a relaxed version of drag racing..It tends be be over 1/4 mile and on old air fields. That said they do also use Santa Pod and another drag strip that the name escapes me :? You can run everything from stock road bikes, to purpose built nitro burning drag bikes and even classics. No top fuel bikes though.
Keep calm and topp up the oil

User avatar
Jak
Site Administrator
Posts: 4785
Joined: Thu Mar 30, 2006 11:21 pm
Location: neither here nor there

Re: Sprinting

Post by Jak » Wed Jun 26, 2013 9:32 am

They do it near us on an old airfield - quite well organised with first aid & marshalls on site (for a proper event). Some people use the airfield for practice too, but that's not a good idea as safety markers aren't out (last year there was a fatality - bike vs concrete bollard at silly speed :( )
This forum is (and will remain) free of advertising
Please help keep it that way : click here for details of how to donate towards forum costs

misterdimwiddy
TRX-Enthusiast
Posts: 474
Joined: Thu Apr 08, 2010 6:14 am
Location: Ware, Hertfordshire

Re: Sprinting

Post by misterdimwiddy » Wed Jun 26, 2013 4:18 pm

cobbadiggabuddyblooo wrote:Talking to Neil Spalding from Sigma , he made me aware even with the slipper clutch I have with 1 extra plate than the std TRX he recommended using R6 plates (Fiction and steel) if doing Racestarts.. If not the std Trx steels would be fine.
Cobba

Do you have any feedback on the use/benefit of a Sigma clutch with the TRX?

Mister D

User avatar
phuk72
Site Sponsor / Administrator
Posts: 3522
Joined: Thu Jan 06, 2005 1:47 pm

Re: Sprinting

Post by phuk72 » Fri Jun 28, 2013 10:44 am

cycloneranger wrote:That said they do also use Santa Pod and another drag strip that the name escapes me :?
Shakespear County Raceway? near Startford upon Avon
Image

cobbadiggabuddyblooo
Site Sponsor
Posts: 6809
Joined: Thu Aug 28, 2008 9:19 am
Location: Brisbane,Australia

Re: Sprinting

Post by cobbadiggabuddyblooo » Fri Jun 28, 2013 11:07 am

misterdimwiddy wrote:
cobbadiggabuddyblooo wrote:Talking to Neil Spalding from Sigma , he made me aware even with the slipper clutch I have with 1 extra plate than the std TRX he recommended using R6 plates (Fiction and steel) if doing Racestarts.. If not the std Trx steels would be fine.
Cobba

Do you have any feedback on the use/benefit of a Sigma clutch with the TRX?

Mister D
Hopefully next week the motor goes in for it's major overhaul and I'll ask to get some pics of the clutch set up as Sigma themselves hadn't actually set one up themselves. So I'll pass on any info to Neil and his team and the members on the TRX site with a few pics and explaination if any mods needed.
laughter is the best medicine

User avatar
cycloneranger
Site Sponsor
Posts: 115
Joined: Tue Apr 10, 2012 8:10 pm
Location: Southampton

Re: Sprinting

Post by cycloneranger » Fri Jun 28, 2013 9:11 pm

phuk72 wrote:
cycloneranger wrote:That said they do also use Santa Pod and another drag strip that the name escapes me :?
Shakespear County Raceway? near Startford upon Avon
Thats the kiddie =D>

I'm heading over to Westernzoyland Saturday...Not taking part just going to watch my mate on his turbo Z1000. Jak Keep your ears open you might hear me passing by. :lol:
Keep calm and topp up the oil

Post Reply