Horizons Unlimited - The HUBB
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Horizons Unlimited - The HUBB (https://www.horizonsunlimited.com/hubb/)
-   Yamaha Tech (https://www.horizonsunlimited.com/hubb/yamaha-tech/)
-   -   Ultimate XT600??? (https://www.horizonsunlimited.com/hubb/yamaha-tech/ultimate-xt600-41482)

Tenere Tom 14 Mar 2009 00:32
Ultimate XT600???
 
What are the best mods for the XT600???

I mean engine, carb, gearing, etc.....

I am refering to the early kick/kick and electric models.

I've heard of these motors knocking out nearly 100 bhp (Check out Slipstream Engineering).

I'm just in the middle of having a play about (again.....)

Micah 14 Mar 2009 01:13
Dear God
 
Really!? 100BHP?

The most I've heard of is 70BHP, and that's with the 101mm Piston, ported/polished head, and dual Mikuni FCRs.

Micah 14 Mar 2009 01:18
Dear God
 
Really!? 100BHP?

The most I've heard of is 70BHP, and that's with the 101mm Piston, ported/polished head, and dual Mikuni FCRs.

carwyn 14 Mar 2009 17:08
more power?
 
does slipstream engineering have a website?

I have a xt600e 1990 that could do with a bit more oomph on the green lanes.

Wide Phil 14 Mar 2009 18:00
Quote:
Originally Posted by carwyn (Post 233220)
does slipstream engineering have a website?

I have a xt600e 1990 that could do with a bit more oomph on the green lanes.
Yikes how much oomph do you want surely a 600 is more than enough, you should be able to plough fields with one of those engines:eek3:

carwyn 14 Mar 2009 18:15
...just sold a v max so EVERYTHING feels slow:tongue_smilie:

Tenere Tom 15 Mar 2009 12:00
Slipstream are in the UK and can be contacted on 01732743248

Kennichi 23 Apr 2009 20:36
I had a crazy thought yesterday in that why not just get X2 XT600 engines, take the crank case off on the left and right side of separate engines and JOIN the crank... removing an entire clutch assembly and putting a beefier clutch on it.

Seal up all the holes and stick a bigger oil tank on it and voila! , an XT1200EE with 84bhp as stock and more than enough torque to not require a front wheel at all. With a cost of an extra 40 kilos for the engine half.

Stick the XTZ660 barrels on it with water jacket and rads and you have a BMW killing XT1320EE super super super super tenere

Stick the 90bhp pistons in it and you have 150+ bhp.

Use the TT600R alloy bits to save more weight, and a kicker to save more weight and there you have it a super super super super tenere XT1320EE and it'd still do 30mpg. And as a bonus if you get the firing order right it will suddenly not be vibey at all.

BMW would be buried forever and unsuspecting 600/1000cc sports bikes owners would be shocked to see what looks like a fat XT600E destroy them at the traffic light races.

Tenere Tom 24 Apr 2009 20:33
Quote:
Originally Posted by Kennichi (Post 239122)
I had a crazy thought yesterday in that why not just get X2 XT600 engines, take the crank case off on the left and right side of separate engines and JOIN the crank... removing an entire clutch assembly and putting a beefier clutch on it.

Seal up all the holes and stick a bigger oil tank on it and voila! , an XT1200EE with 84bhp as stock and more than enough torque to not require a front wheel at all. With a cost of an extra 40 kilos for the engine half.

Stick the XTZ660 barrels on it with water jacket and rads and you have a BMW killing XT1320EE super super super super tenere

Stick the 90bhp pistons in it and you have 150+ bhp.

Use the TT600R alloy bits to save more weight, and a kicker to save more weight and there you have it a super super super super tenere XT1320EE and it'd still do 30mpg. And as a bonus if you get the firing order right it will suddenly not be vibey at all.

BMW would be buried forever and unsuspecting 600/1000cc sports bikes owners would be shocked to see what looks like a fat XT600E destroy them at the traffic light races.
I have the bits if you have the machining equipment!!!

I'm not joking:cool4:

Honda CT90 Rider 25 Apr 2009 05:00
Quote:
Originally Posted by carwyn (Post 233229)
...just sold a v max so EVERYTHING feels slow:tongue_smilie:

I will lend you my CT90. after that, EVERYTHING will feel FAST!! :mchappy:

BlackDogZulu 25 Apr 2009 08:38
Quote:
Originally Posted by Tenere Tom (Post 239294)
I have the bits if you have the machining equipment!!!

I'm not joking:cool4:
<pulls up armchair, opens popcorn>

This could be fun.

bruken 29 Apr 2009 23:38
Quote:
Originally Posted by BlackDogZulu (Post 239331)
<pulls up armchair, opens popcorn>

This could be fun.
Oh yes this is gonna be a hoot:innocent: These boys have obviously heard about harmonic runaway when you join two engines by the crankshaft within the same frame. That motor gonna pop 20k revs and shed pistons all over even with the throttle shut. I hope they put the vid on Utube:clap:

wolfzero 8 May 2009 00:26
yeh those guys talk a good project but the whole thing they described would never work transmition, balance shafts, lubrication sytem etc.
be simpler to put off road bits on a virago 1200

i'm hoping that i get about 55bhp out of my xt600 project high comp oversize piston with a ported and polished head, diff carbs and exhuast etc.
i got rid of some weight too so it should rip

Tenere Tom 8 May 2009 15:19
Quote:
Originally Posted by wolfzero (Post 240921)
yeh those guys talk a good project but the whole thing they described would never work transmition, balance shafts, lubrication sytem etc.
be simpler to put off road bits on a virago 1200

i'm hoping that i get about 55bhp out of my xt600 project high comp oversize piston with a ported and polished head, diff carbs and exhuast etc.
i got rid of some weight too so it should rip
I have a ported head doing nothing if you're looking for one.
PM me for details if you are intrested.

It has one off aluminium inlets too!!!

wolfzero 8 May 2009 17:43
damn tom i've already done all the engine i work could have done with that a few months ago.
i just got to make some caliper mounts for my very moddified rear end and a few other little bits and shes ready to go :mchappy:


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