.: XT660.com - The #1 XT660 Resource :. - Big Bore and Gas Flowed Head Project

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.: XT660.com - The #1 XT660 Resource :. ( https://www.xt660.com/index.php)

- XT660X & XT660R General Discussions ( https://www.xt660.com/forumdisplay.php?f=121)

- - Big Bore and Gas Flowed Head Project ( https://www.xt660.com/showthread.php?t=14763)

Kev	31-08-10 23:27

Make sure the re-platers do a good job, we have already had one 686cc conversion plating come off the cylinder at 1800kms & damage the cylinder & his new piston.

dazmatic

31-08-10 23:28

Quote:

Originally Posted by richardsracingmad (Post 137287)

Estimated Cost of my (ever-growing) Conversion

So far!!...

Spare Barrel �60
Rebore/plating �130
Piston Kit �115
Top Gasket �37
Bottom Gasket �10
Oil/sundries �20

+3 throttle body �130
Webb springs/ret �115
+2 Valves �50

Head flow/port �275
Rebuild/strip �220 Total �1162

Then, undecided so far....

HDD5050 Cam �225 or
"racingmad" cam �225 (or both!)

Rev. meg Exhaust �600

OR

A Quality night out :bunny:

richardsracingmad

31-08-10 23:33

Quote:

Originally Posted by Kev (Post 137285)

Notice how the diameter of the link pipe "cones"

If you have a close look at my link pipes from any of my photo's they are also coned, I had them specially made for my Carbon Cans back in 2006. They tapper from 34mm to 50mm ID.[/quote]

yep, noticed them ages ago.....but....we are going to be different! why not?
and some tricks to try out too!

richardsracingmad

31-08-10 23:35

Quote:

Originally Posted by dazmatic (Post 137289)

OR

A Quality night out :bunny:

its adding up, isn't it.....might be hitting the 2k mark at the end!

richardsracingmad

01-09-10 18:17

Dynatek Ignitions

Would there be any advantage running one of these Programmable Dynatek Ignitions?

I think I'll speak to Simon at Powertech, but what do you think, Kev?
How many revs will the standard rod take, will occasional rpm to 7750 be ok, if I up the rev limiter, and the cam isn't dropping off as early as a Raptor cam?
I won't hold you to anything, just a "no-comeback on Kev opinion?", as if we were private messaging. So, viewers, don't get any ideas!!

Valve springs are being uprated.

Will the Dynatek help me much any other way.? Do they help smooth the lower revs?

dazmatic

01-09-10 18:21

You won the lottery or something?!

:grouphug5:

richardsracingmad

01-09-10 18:26

My Mother passed away.....I don't think she would want me skulking about, and she would want to see me happy.
This project kind of takes your mind off things......and she left me some money!!

Simon-c

01-09-10 18:40

Just had a look at my Dynatek catalogue, the DFS7-21P is the one for the Raptor 700 and is programmable. The only way to find out if it fits is to get a bike to Dynojet and if it does fit have the ignition mapped properly. I wouldn't really trust anyone else to do an ignition map as most of the Dyno centres in the UK don't even know how to use their Dyno's.

It will probably be available to order only so someone is going to have to spend some money.

Simon
Powertech

dazmatic

01-09-10 18:41

Ah well, sorry to hear bud!

But Kudos though to wanting to mod your bike up like that!

Very much wish I could do the same.

Should be a very nice machine once you've finished with it all, very envious here! :applause:

richardsracingmad

01-09-10 20:38

Quote:

Originally Posted by Simon-c (Post 137391)

Thank you Simon....nice of you to drop by on my thread...!
I will do a bit of research on my Raptor forum for the advantages, which believe me, they would consider ( my Conversion) a mild to medium tune!! Like a Lamb Bhuna.....

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