TRX/TDM 850 and 900 +2mm exhaust valves available
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TRX/TDM 850 and 900 +2mm exhaust valves available
Sorry for the long delay getting these valves made. They are now ready, I just need to pay for them and they will post them out to me.
I am currently unable to get online at home after having no end of ISP and pc problems so my posts may be infrequent and erratic for a while. Apologies in advance.
I will pm invoices out as soon as I'm able to those who have already put their names down for a set. I have a two or three sets spare that I'm happy to sell on a first come first served basis
Mark.
I am currently unable to get online at home after having no end of ISP and pc problems so my posts may be infrequent and erratic for a while. Apologies in advance.
I will pm invoices out as soon as I'm able to those who have already put their names down for a set. I have a two or three sets spare that I'm happy to sell on a first come first served basis
Mark.
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Excellent, thanks Mark.
Another job well done.
I'll await your PM..
Interesting reading the story on Cathcarts motor with the 2mm oversize valves and 12.5:1 flat top piston set up.
They used a std ECU and just retarded the timing by 4* obviously at the pick up from the crank to deal with the extra compression.
Another job well done.
I'll await your PM..
Interesting reading the story on Cathcarts motor with the 2mm oversize valves and 12.5:1 flat top piston set up.
They used a std ECU and just retarded the timing by 4* obviously at the pick up from the crank to deal with the extra compression.
laughter is the best medicine
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Can someone point me out the post where I quoted the cost of these valves so I can honour it.
Mark.
Mark.
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Price was in a PM
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Where can one find this write up budcobbadiggabuddyblooo wrote:Excellent, thanks Mark.
Another job well done.
I'll await your PM..
Interesting reading the story on Cathcarts motor with the 2mm oversize valves and 12.5:1 flat top piston set up.
They used a std ECU and just retarded the timing by 4* obviously at the pick up from the crank to deal with the extra compression.
My bike maybe a dinosaur but it still has some bite & has a mighty roar.
Sometimes I wake up grumpy ........ but usually I let her sleep in
Sometimes I wake up grumpy ........ but usually I let her sleep in
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
I found it on google.
laughter is the best medicine
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Ok thanks to Cobba, for trawling through his pm's. I have quoted him a price of £93 for a set of 4, so that is the price for everyone on the forum. I should have these in my hand by the end of the week and will get firm postage costs for UK,Australian and European destinations which will be insured and signed for.sanddune51 wrote:Can someone point me out the post where I quoted the cost of these valves so I can honour it.
Mark.
I will post up these details on this thread when I have them.
Mark.
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
If there is a set f these going I'd like to put my name down plz.......
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
I have replied to Phil by personal message.
Mark.
Mark.
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Is there still a set available for me?
Thanks
Bart
Thanks
Bart
Owner of a red TRX with a 900 engine, 39mm Mikuni flatslides, 2-1 large bore stainless steel systeem (projection-components), R6 front and back suspension, FZR 1000 swingarm and wheels ... and with water, oil and fuel only 185kg.
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Set of 4, just exhaust valves then I take it?
Is anyone running with them yet?
Is anyone running with them yet?
LOUD PIPES SAVE LIVES
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Yet one of the lads racing his Trx here has set his up with the 2mm oversize exhaust valves on a std motor. Bit of head work and FCR's and Akra system.
I got an idea he found 93rwhp which it 3 - 6 more hp than most in similar trim without the valves.
I'm sure if he chose a free flowing exhaust he'll be close to 95...
Akra system struggles a little after 7,000rpm but plenty of balls at 4,000rpm.
I got an idea he found 93rwhp which it 3 - 6 more hp than most in similar trim without the valves.
I'm sure if he chose a free flowing exhaust he'll be close to 95...
Akra system struggles a little after 7,000rpm but plenty of balls at 4,000rpm.
laughter is the best medicine
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Hmmm, a healthy power output but surely you would need some extra lift and duration on the cams to get the best out of them?
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Re: TRX/TDM 850 and 900 +2mm exhaust valves available
Quite a few factors start coming into play as I'm sure your well aware there Colonel Sanders..
What do you want out of your motor and what do you have to compliment???
You may find shrouding issues with the larger 2 mm valves so robbing Peter to pay Paul with Kent cams may spread a much more even power output throughout the rev range if that's your goal.
Or a Curmi has done using an Akra system with a std motor/2mm o/s valves.
Those I've spoken to who raced here on their TRX's back in the day had there bikes set up with 2mm oversize valves, Arias pistons, Over/V2 profile cams and Over exhaust all found between 112-116hp.
They all worked together well from 6,000 to 9500rpm.
Im tending now to change exhaust to an Over system because I'm loosing a couple of Extra HP in the top end due to the Akra exhaust. But i have oodles of the mid range being well complimented with the 1mm o/s valves, Kent cams, rolling mass removed internally on the motor and with the Dymag wheels so its a worthy sacrifice with the bike now being dedicated to more trackdays than on road riding.
( I'm putting out the peak Hp of a std Trx at 4400rpm / torque at 4100rpm )
So I'll feel I can afford the happy medium between outright horsepower and mid range grunt.
What do you want out of your motor and what do you have to compliment???
You may find shrouding issues with the larger 2 mm valves so robbing Peter to pay Paul with Kent cams may spread a much more even power output throughout the rev range if that's your goal.
Or a Curmi has done using an Akra system with a std motor/2mm o/s valves.
Those I've spoken to who raced here on their TRX's back in the day had there bikes set up with 2mm oversize valves, Arias pistons, Over/V2 profile cams and Over exhaust all found between 112-116hp.
They all worked together well from 6,000 to 9500rpm.
Im tending now to change exhaust to an Over system because I'm loosing a couple of Extra HP in the top end due to the Akra exhaust. But i have oodles of the mid range being well complimented with the 1mm o/s valves, Kent cams, rolling mass removed internally on the motor and with the Dymag wheels so its a worthy sacrifice with the bike now being dedicated to more trackdays than on road riding.
( I'm putting out the peak Hp of a std Trx at 4400rpm / torque at 4100rpm )
So I'll feel I can afford the happy medium between outright horsepower and mid range grunt.
laughter is the best medicine