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The TTR250 FAQ web pages -> TTR250 -> Feedback, suggestions, chat and general banter -> Performance Upgrades To A 2004 TTR 250
Post Info TOPIC: Performance Upgrades To A 2004 TTR 250
TTRfan


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Forgot to say "Welcome" Anthony!

Ah yes, a 325 kit - yep - TTR perfection biggrinbiggrinbiggrinbiggrin

How could I have forgotten that Martyn confuse

That said, I am running a 280 kit in my project bike and, now I have sorted out the misfire, it is running like a dream. Can't wait to get it fully run in and see what it will do flat out. wink 

Seems to be a nice bit of torque but don't know yet about the top end.

I am running the shorty header pipe and the Motad silencer which should help a bit as well.

Brian



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Butcher


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Hi all i recently purchased an 2004 TTR 250, the previous owner replaced the entire suspention with " a heavier carrieing system ", he also went bigger on both pilot and main jets aswell as bigger on bith front and back sprockets. my question is: what els can i do to to give it more power? 



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Cubber


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Put a 1200 Suzuki Bandit engine unit into it. biggrin

Seriously, though, why? confuse

Would it not have been better to buy a faster bike rather than a customized TTR?

Martyn



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East Budleigh. Devon
TTRfan


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This may help http://www.ttr250.com/#Uncorking_the_TTR250



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Cubber


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Sorry - I was a tad facetious in my reply. hmm

Another mod. (after uncorking as above) would be to fit a big bore kit.

This CLICKY LINKY will take you there. aww

Martyn

 

PS - Welcome to the TTR forum.



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East Budleigh. Devon
Butcher


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ive been througgh a lot of bikes: kdx 200's and 250's, yz 250's, xt's, cr's, ect but i heard a ttr 250 is the most fun in the bush.



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Butcher


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TTRFAN thanks for the link it realy helped, i have another question though, how much difference would an fmf backend do? oh and would a "power bomb"in the front end work on this bike? also what would i have to change on the bike to suite a racing cdi?



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Butcher


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Martyn thanks for the tip, i might just try that big bore kit out



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Butcher


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TTRFAN thanks for the welcome and the info, i look foward to many more mod convos... Oh and would gas flowing my head and bigger lobes on my cam need any other mods on my bike to work?

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TTRfan


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Butcher wrote:

TTRFAN thanks for the welcome and the info, i look foward to many more mod convos... Oh and would gas flowing my head and bigger lobes on my cam need any other mods on my bike to work?

Gas flowing on its own might improve things, particuarly smoothing out any step between the head and inlet manifold.

I have not managed to get any feedback from a TTR owner who has fitted hot cams - see http://ttr250.activeboard.com/t47459573/after-market-camshafts-and-ss-valves/

A sure way to increase the power of a 4T is to increase the compression ratio but there is no gain without pain and my guess is that all mods will decrease reliability to one extent or another.

A TTR250 won various national enduro championships in Australia. If you are really keen and have a good budget then it might be worth trying to make contact with the race team mechanic/tuner.

Brian

 



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Butcher


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TTRFAN thanks for the info.. I am a lil heasitent when de-creasing reliability. How much more power would i get if i put a fmf tail on it? Its 3k for one so its a huge chunk out of my budget and if the cash could be spent on "higher performing" parts im going to leave the standard tail on

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Butcher


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TTRFAN i had a look at that link but it didnt give any sizes... Do you know the max lobe size i can go in the cams?

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TTRfan


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Butcher wrote:

TTRFAN i had a look at that link but it didnt give any sizes... Do you know the max lobe size i can go in the cams?

Sorry but I don't have any more info than is on the site. Best email them direct with any queries.  

I have never used anything other than standard camshafts and haven't looked at using any aftermarket ones so really am not going to be able to help you much on this - sorry.

Brian



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Butcher


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TTRFAN no worries bro you have already helped a lot.

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