Turn your head
- ir_joep
- Posts: 107
- Joined: Sun Jul 26, 2009 7:35 pm
- model: 750 Sport
- year: 1989
- Location: Haarlem, The Netherlands
Turn your head
Hi,
What would it take to turn the head on the back cilinder of a 750 sport, like on the early Pantah engines?
I could see some possiblilties with the ready available F1 exhaust sytems. (www.oldracingspareparts.com)
And I think it will look good too
Thanks Joep
What would it take to turn the head on the back cilinder of a 750 sport, like on the early Pantah engines?
I could see some possiblilties with the ready available F1 exhaust sytems. (www.oldracingspareparts.com)
And I think it will look good too
Thanks Joep
- ducinthebay
- paso grand pooh-bah
- Posts: 1323
- Joined: Sat Sep 03, 2005 12:00 am
- model: 750 Sport
- year: 1990
- Location: SF Bay Area
Re: Turn your head
What it would take is a head from a Pantah series motor. The bottom ends are the same I think. For a full detail of this conversion search through:
loudbike.blogs.com
He took and put an F1 top end on a later bottom end, or some such thing. (I read it 2 years ago or more, so I can't remember the details)
Are pantah heads same front and back? Except for the finning.
loudbike.blogs.com
He took and put an F1 top end on a later bottom end, or some such thing. (I read it 2 years ago or more, so I can't remember the details)
Are pantah heads same front and back? Except for the finning.
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
- ir_joep
- Posts: 107
- Joined: Sun Jul 26, 2009 7:35 pm
- model: 750 Sport
- year: 1989
- Location: Haarlem, The Netherlands
Re: Turn your head
Thanks for the reply. I will certainly have a look at that website.
I was hoping that some machining of the head and a different cam would do the trick
* Machining of the ports (in and out) to accept a carburator at the now exhaust side and machining to accept a exhaust at the now inlet side. Is this possible, given the port diameters and such? Is there enough material to machine?
* Machining of the valves?
* Get a new cam
Saw a Cagiva Allazurra 650 the other day with the vertical head F1 style. That looks a perfect fit.
I'm going to take a look at the tech specs and report later.....
Cheers Joep
I was hoping that some machining of the head and a different cam would do the trick
* Machining of the ports (in and out) to accept a carburator at the now exhaust side and machining to accept a exhaust at the now inlet side. Is this possible, given the port diameters and such? Is there enough material to machine?
* Machining of the valves?
* Get a new cam
Saw a Cagiva Allazurra 650 the other day with the vertical head F1 style. That looks a perfect fit.
I'm going to take a look at the tech specs and report later.....
Cheers Joep
- jcslocum
- paso grand pooh-bah
- Posts: 1714
- Joined: Mon Jul 19, 2004 12:00 am
- model: 750 Paso
- year: 1988
- Location: Eastern Shore, MD
- Contact:
Re: Turn your head
just thinking about the way you have explained what you want to do made my head hurt!
You can use a cam from the horizontal cylinder in the vertical head but the valve sizes will be all wrong. Exhaust flanges and intake flanges will aslo be wrong. Find a Pantah head!
You can use a cam from the horizontal cylinder in the vertical head but the valve sizes will be all wrong. Exhaust flanges and intake flanges will aslo be wrong. Find a Pantah head!
- ducinthebay
- paso grand pooh-bah
- Posts: 1323
- Joined: Sat Sep 03, 2005 12:00 am
- model: 750 Sport
- year: 1990
- Location: SF Bay Area
Re: Turn your head
OR, just put a front head on the rear cylinder. The finning is funny, but its a lot easier. Are the oil lines a match? Cam belt alignment is something you will need to check.
I got a spare 750 head I'll sell you.
Pantah head still seems to be the fastest / easiest way.
Then you have a challenge of where the carb lives behind that cylinder. Is there a frame in the way there? F1 frame is very different in that area.
It is certainly a project, but still have to ask why? I'm not seeing any performance benefit, and the style points are adding up for me.
A 17" wheel conversion, or a front end conversion would be money/time better spent, but that's my opinion.
Cheers,
I got a spare 750 head I'll sell you.
Pantah head still seems to be the fastest / easiest way.
Then you have a challenge of where the carb lives behind that cylinder. Is there a frame in the way there? F1 frame is very different in that area.
It is certainly a project, but still have to ask why? I'm not seeing any performance benefit, and the style points are adding up for me.
A 17" wheel conversion, or a front end conversion would be money/time better spent, but that's my opinion.
Cheers,
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
- jcslocum
- paso grand pooh-bah
- Posts: 1714
- Joined: Mon Jul 19, 2004 12:00 am
- model: 750 Paso
- year: 1988
- Location: Eastern Shore, MD
- Contact:
Re: Turn your head
I don't think the oil channels line up properly.
- higgy
- paso grand pooh-bah
- Posts: 3329
- Joined: Tue Jul 29, 2008 9:50 pm
- model: 907 I.E.
- year: 1992
- Location: Hilltown,Pennsylvania
- Contact:
Re: Turn your head
I would not let the oil passages be an issue,external oil lines are easy to do............
as for the rest of the issues My first thought is why? seems like a silly idea to me,but then its not something I have given a lot of thought to
I have enough issues sorting out the normal stuff
as for the rest of the issues My first thought is why? seems like a silly idea to me,but then its not something I have given a lot of thought to
I have enough issues sorting out the normal stuff
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
88 750
90 906
92 907ie
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
88 750
90 906
92 907ie
- ir_joep
- Posts: 107
- Joined: Sun Jul 26, 2009 7:35 pm
- model: 750 Sport
- year: 1989
- Location: Haarlem, The Netherlands
Re: Turn your head
Hi,
The reson why I'm asking is that I have got a spare 750 Sport engine and dreaming of a TT2 replica.
Can I use the sport engine or should I go for an other model?
Cheers Joep
The reson why I'm asking is that I have got a spare 750 Sport engine and dreaming of a TT2 replica.
Can I use the sport engine or should I go for an other model?
Cheers Joep
- ducinthebay
- paso grand pooh-bah
- Posts: 1323
- Joined: Sat Sep 03, 2005 12:00 am
- model: 750 Sport
- year: 1990
- Location: SF Bay Area
Re: Turn your head
I don't know for sure, but I think the Sport bottom end is a bit more durable than the Pantah motor. Other than that, the two motors are basically the same, except for the rear head. Both are 5 spd, with the same clutch setup. Get a Pantah head and call it good. If you have Dellortos, then they will work on both motors. The intake manifold is a little bit different give you the right angle, but I can't tell you what the difference would be exactly.
Sounds like a fun project.
Cheers,
Sounds like a fun project.
Cheers,
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
- ducbertus
- paso grand pooh-bah
- Posts: 531
- Joined: Sun Jan 07, 2007 12:00 am
- model: 907 I.E.
- year: 1991
- Location: holland
Re: Turn your head
this won't work
turning your're vertical head requires major machining as on the opposite is nothing prepared to adapt the belt.
If you are into this, why don't you go a step further in the past and make a bevelhead.
that would be something
ducbertus
turning your're vertical head requires major machining as on the opposite is nothing prepared to adapt the belt.
If you are into this, why don't you go a step further in the past and make a bevelhead.
that would be something
ducbertus
- jcslocum
- paso grand pooh-bah
- Posts: 1714
- Joined: Mon Jul 19, 2004 12:00 am
- model: 750 Paso
- year: 1988
- Location: Eastern Shore, MD
- Contact:
Re: Turn your head
There are TT2 frames kits out there that use the modern engine and swingarms from a monster. Thersby has a really nice kit for about 3500 GBP.ir_joep wrote:Hi,
The reson why I'm asking is that I have got a spare 750 Sport engine and dreaming of a TT2 replica.
Can I use the sport engine or should I go for an other model?
Cheers Joep
- ir_joep
- Posts: 107
- Joined: Sun Jul 26, 2009 7:35 pm
- model: 750 Sport
- year: 1989
- Location: Haarlem, The Netherlands
Re: Turn your head
Please do not take turning the head literally. I just ment switching the exhaust and inlet ports of a 750 sport engine like on the early pantah's.ducbertus wrote:this won't work
turning your're vertical head requires major machining as on the opposite is nothing prepared to adapt the belt.
If you are into this, why don't you go a step further in the past and make a bevelhead.
that would be something
ducbertus
Cheers Joep
- ir_joep
- Posts: 107
- Joined: Sun Jul 26, 2009 7:35 pm
- model: 750 Sport
- year: 1989
- Location: Haarlem, The Netherlands
Re: Turn your head
http://cgi.ebay.co.uk/Ducati-750-F1-R-F ... 4a9d621af2
Thersby looks great!!!
Having a look at the pics at e-bay I see another reason to switch to an early style pantah setup. The TT/F1 tank is very different if the inlets are between the cilinders --> no space for tank bottom between the cilinders. The tank just looks to have a flat bottom.
Thersby says a 900 can be fitted as well...
Cheers Joep
Thersby looks great!!!
Having a look at the pics at e-bay I see another reason to switch to an early style pantah setup. The TT/F1 tank is very different if the inlets are between the cilinders --> no space for tank bottom between the cilinders. The tank just looks to have a flat bottom.
Thersby says a 900 can be fitted as well...
Cheers Joep
- persempre907
- paso grand pooh-bah
- Posts: 3312
- Joined: Tue Dec 06, 2005 12:00 am
- model: 907 I.E.
- year: 1992
- Location: Roma, Italia
Re: Turn your head
Nice project, but there's a little inaccuracy in the description.
He says that Italian riders are very small persons. He doesn't know me...
Ciao
P.S. I think the same frames were built nowaday by Verlicchi too.
He says that Italian riders are very small persons. He doesn't know me...
Ciao
P.S. I think the same frames were built nowaday by Verlicchi too.
Francesco
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
- ducinthebay
- paso grand pooh-bah
- Posts: 1323
- Joined: Sat Sep 03, 2005 12:00 am
- model: 750 Sport
- year: 1990
- Location: SF Bay Area
Re: Turn your head
OK, here's a head for your project.
He also has a set of Vee Two cams for sale.
http://cgi.ebay.com/ebaymotors/DUCATI-5 ... 35a7a09400
I don't know how much different the 500 motor was from the 750, but this is you best shot, except an F1 head, which will be much harder to find. Check the bolt pattern. Everything else you can alter to fit.
Cheers,
He also has a set of Vee Two cams for sale.
http://cgi.ebay.com/ebaymotors/DUCATI-5 ... 35a7a09400
I don't know how much different the 500 motor was from the 750, but this is you best shot, except an F1 head, which will be much harder to find. Check the bolt pattern. Everything else you can alter to fit.
Cheers,
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.