Hypermotard Head are they so bad - Ducati.ms

shwantz34 · Nov 21st, 2010, 5:20 pm

I would like to know how bad stock head are?
I know that you can have good gain with a port job, but are the stock valve guide and valve seat so bad ?

I have heard that leak down test around 15-20% are preaty standard on DS1100 engine is it realy the case?
A bike with a good valve seat job will be around 3-4%

If you know about that, let me know.
Thank's !

Monstaman · Nov 21st, 2010, 5:34 pm

Go here to MBP

Martin Brickwood Performance

The more successful head jobs seem to include raising the hump the inlet port in line with the valve stem etc.

Have a shuffle through the site (if you haven't already), matching intake manifold to inlet port, enlarging the port but more to the point flowing the port make a hug difference.

As far as valves and seats go the thinner the valve seat face is (to a point) will give you much better seating and sealing, I am sorry I can not offer up sizes but have a chat to MBP and they will be able to set you straight on the latest.

shwantz34 · Nov 21st, 2010, 5:51 pm

THank's Monstaman, i already have a great meeting with the man Himself
(Guy Martin) of MBP, very nice person, and a bible for Ducati stuff.Certainly one of the best for ducati head work, The things is that i already have put like $ 5000.00 on it already and try to convince me to pass on the $2400.00 head work from the Magicain at MBP.
The reason i ask about that is that Guy have work on a lot of DS engine, but have not work much on the DS1100, and he said that maybe our head are better.But older DS was not to effective on head side.Last things,is that i use my HM for fun riding on the street, i don't race it.( but to have fun it needs to pull like a train)

I have my Aprilia SXV for race, and for faster road i have my Streetfighter ( the street is my Girlfriend bike) don't why she choose that one

And last i'm no millionaire i work hard for each f,,,, box i earn.

So what will you do ?

Quote:

Originally Posted by Monstaman

Go here to MBP

Martin Brickwood Performance

The more successful head jobs seem to include raising the hump the inlet port in line with the valve stem etc.

Have a shuffle through the site (if you haven't already), matching intake manifold to inlet port, enlarging the port but more to the point flowing the port make a hug difference.

As far as valves and seats go the thinner the valve seat face is (to a point) will give you much better seating and sealing, I am sorry I can not offer up sizes but have a chat to MBP and they will be able to set you straight on the latest.

Monstaman · Nov 21st, 2010, 6:24 pm

Quote:

Originally Posted by shwantz34

So what will you do ?

No point asking me cos I have already defected to the dark side which came with 4 valves!!

So an eco option (but this does mean head removal) would be to make sure your valves and seats are cut as narrow as you can to increase efficiency, second to make sure your manifold and port are lined up nicely with no steps or lips.

If you want to leave your heads in place, just enjoy as there is nothing you can do other than your cams, maybe a pcv and autotune like Doon has got whereby his fuel mapping is so much efficient that he has power and fuel range, he can switch to hooligan mode too which is spendie on rubber and fuel.

joshuaz2 · Nov 22nd, 2010, 10:04 am

i would stay away from the head work for now. your build is remarkably close to mine and with the cams, exhaust, dp cpu and pods that came with the larger tank my fueling is almost perfect. just slightly lean with no dips. the torque curve was amazing. the people who dynoed it said it was the best torque curve they had seen.

Chouch · Nov 22nd, 2010, 10:33 am

If I had like you a SXV and a StreetFighter in my garage, I wouldnt bother with Guy Martin work and use the 2400$ to ship to Hyper and SF in Europe and get the best rides of my life.

You could spend 4.000$ in a crankshaft, 3000$ in Ti rods, 1900$ in NCR big bore kit, 2400$ in Guy martin's head, an extra 1000$ in Ti valves and tune it with a Microtech ECU, you will still be far away from the 150hp claimed by the StreetFighter, which you already have in your garage.

CAlexio · Nov 22nd, 2010, 11:08 am

Quote:

Originally Posted by Chouch

If I had like you a SXV and a StreetFighter in my garage, I wouldnt bother with Guy Martin work and use the 2400$ to ship to Hyper and SF in Europe and get the best rides of my life.

You could spend 4.000$ in a crankshaft, 3000$ in Ti rods, 1900$ in NCR big bore kit, 2400$ in Guy martin's head, an extra 1000$ in Ti valves and tune it with a Microtech ECU, you will still be far away from the 150hp claimed by the StreetFighter, which you already have in your garage.

LOL, so true... and yet, I'd rather have a 110hp hypermotard than a streetfighter... (unless of course it was a 200hp streetfighter in which case I'd take that)....

it's all about modifying.. it's an insanity which keeps the happy shops and aftermarket manufacturers in business. Humans aren't logical...

shwantz34 · Nov 22nd, 2010, 4:32 pm

I Chouch !

I'm no more after 150HP Hyper or even fitting a 1098 engine in my HM. After riding both (SF and HM) back to back on the same road , i know that a good 110hp of 2 valve Ducati will make me smile enought. THey are completely different animal, and the HM will not be as funny with the 1098 engine.But on the other side i whant to have a 2 valve with caracter,more snap , keep is low rpm grunt and have a good gain on top.It have to breath.
But i will prefer to put money on my bike than on a 1 week trip in Europe with the bike. My add on parts will give me a lot of funny year on the HM , a trip to Europe will be 1 week or 2 then it will be over.
And you know that The paradise to run the HM is in St-Lin-Laurentides

Why go to europe for that

Sériously, i think that for now . SC Project 2-2, Ducshop Stack,DP Cam and ECU kit, Bazazz ZFI and Z AFM will be enought.

Then maybe next year a 12.1 pistal piston to complete the package will do it

Quote:

Originally Posted by Chouch

If I had like you a SXV and a StreetFighter in my garage, I wouldnt bother with Guy Martin work and use the 2400$ to ship to Hyper and SF in Europe and get the best rides of my life.

You could spend 4.000$ in a crankshaft, 3000$ in Ti rods, 1900$ in NCR big bore kit, 2400$ in Guy martin's head, an extra 1000$ in Ti valves and tune it with a Microtech ECU, you will still be far away from the 150hp claimed by the StreetFighter, which you already have in your garage.

Monstaman · Nov 22nd, 2010, 9:47 pm

Quote:

Originally Posted by shwantz34

Sériously, i think that for now . SC Project 2-2, Ducshop Stack,DP Cam and ECU kit, Bazazz ZFI and Z AFM will be enought.

The bikes are not a slug now, the best money spent on a Hyper is in the suspenders, the rest works ok as is after unblocking it from factory.

Abarth · Nov 23rd, 2010, 3:24 am

I've had headwork done on my Hypermotard. Paid around 1700 euro's, for that I got:

- DP Cams + ECU
- Porting of Heads
- 12.000 KM service done

Work in progress:

Dyno result:

Run "Test voor tuning" was with Termignoni 2 in 1 setup. (88.1 HP)
Run "Test na tuning" is with ported heads, DP race cams and Termignoni 2 in 1 setup. (106.5 HP)

I think the MBP heads are a work of art, but quite pricey.