Top Power from 900SS

[Benno1803]

Hi Joe B, You are correct - Chris Kelley does get a little more power but that is with 944cc's, twin spark heads, split FCR's and the not inconsiderable $6,000 for the kit.

Regarding the frame - the front end it SS and the rear 916.

[FunkZ]

Originally Posted by Benno1803

Regarding the frame - the front end it SS and the rear 916.

[908SSP]

I know most of you weren't even around back then but I did this in 1999. Took first prize at the Daytona Ducati party that year.



By next winter it looked like this which I think works better than the full fairing.



By the summer of 2002 I was making 95 horse power with this. Why you would copy the MBP redheads I don't know maybe the porting is a copy too.

[chris steedman]

By the summer of 2002 I was making 95 horse power with this. Why you would copy the MBP redheads I don't know maybe the porting is a copy too.

[/quote]

Maybe BENNO just likes the colour red ? . I could name 5 people off the top off my head who could make a 2v head hit 100hp . Whether they are paid enough or have the interest to do it is another story. Just because someone can make whatever horsepower in whatever year it doesnt mean there a god does it. Just like cooking an egg - theres more than one way to port heads

[TomTom]

Anyone even thinking of tearing a ducati engine deserves a feather!

Doesnt really matter what the outcome was as at first stage.

Hat off to you all daring!

[FunkZ]

Anyone who is willing to chop up a 916 and their 900SS and meld the two gets a big kudos from me. Getting 100hp from the 2v motor is icing on the cake!

[Benno1803]

Hi Funkz,

The frame has a 900SS front end and a 748/916 rear end from the rear mount backwards. mucho cutting, jigging and shutting.

The rear tank mount had to be re-fabricated and the seat unit shortened by 10mm or so. The advantage is the use of standard parts and the ability to stick a biposto tail on for the wife. Alex Ortner did a similar job with a fram but used the heavier momo swing arm - I was a bit surprised when I saw it as I thought mine was unique.

The added benefit is the extra swing arm spindle support provided by the etra lower mounts on the 748 frame - solid as a rock!

[Benno1803]

Hi 908SSP,

I didn't realise there was copyright on having red heads. They were painted that colour before I saw the US engine 'cos it I thought it would look good. When Chris had the engime it was in bead blast finish.

With regard to copying ports I doubt that Chris has even seen a redhead in the flesh so that would be difficult.

If you follow the principles and have several years experience - and a flowrig - I'm sure the end results would be similar whoever did the work.

Sureley the point is that there is life in the old dog yet. And the 2V motor can provide good figures and mucho fun - at potential a fraction of the cost and complexity of the 4V.

With regard to the frame work its good to see that great minds think alike!!!

[Ducati BOB]

Originally Posted by Benno1803

Hi Guys,

Here is the power curve and a pictiure of the beast.
One tip though - remeber to change the clutch actiation rod bearing when you rebuilt the motor - I didn't and OUCH!

Benno1803:

Here is something to consider;

TPO Parts

I beleive that this would make you an additional 3-5hp, even on top of your already installed individual air filters. PM me know if you are interested.

[Jeff H.]

I am very interested in this, but see that it's designed for fuel injected 2V. My carbie has the 944 kit and ported heads. I was thinking of ditching the open airbox and mounting pod filters on the FCR's instead. How is this kit different/better than just pod filters?

Thanks,

Jeff

[BrianK]

This kit both smooths and swirls the incoming airstream, resulting in better fuel-atomisation and also refracting the light around the bike, resulting in even a slow red bike appearing the FASTER YELLOW COLOR - hence adding several HP/TQ as well as improving the appearance of both bike and (by extension) rider....

Savoir faire is everywhere!

Hi Jeff

[chris steedman]

Originally Posted by Jeff H.

I am very interested in this, but see that it's designed for fuel injected 2V. My carbie has the 944 kit and ported heads. I was thinking of ditching the open airbox and mounting pod filters on the FCR's instead. How is this kit different/better than just pod filters?

Thanks,

Jeff

Its better because the airbox bends are eliminated. Stick the head on the flowbench and lets say it flows 125cfm with valve at full lift . Now add the intake manifold , bent plastic pipes that lead to the airboxes/carbs and bolt it to the head whilst its under flow test.. The flow has now dropped to 100cfm as air flow does not like bends. The shorter straighter velocity stack kit only chops off about 5cfm in total giving more flow and power. The kit also shortens the tuned length of the intake system improving top end. Avoid fitting just a pod filter on the back of the throttle body . You will get a large loss. The intake /velocity stacks are important and serve more than one purpose . I think benno made his own - give us pictures

[Jeff H.]

Originally Posted by BrianK

This kit both smooths and swirls the incoming airstream, resulting in better fuel-atomisation and also refracting the light around the bike, resulting in even a slow red bike appearing the FASTER YELLOW COLOR - hence adding several HP/TQ as well as improving the appearance of both bike and (by extension) rider....

Savoir faire is everywhere!

Hi Jeff

Someday, I'll make mincemeat out of that mouse, Brian!!! It's going to take a lot more than a yellow bike to make me look better too...

[Jeff H.]

Originally Posted by chris steedman

Its better because the airbox bends are eliminated. Stick the head on the flowbench and lets say it flows 125cfm with valve at full lift . Now add the intake manifold , bent plastic pipes that lead to the airboxes/carbs and bolt it to the head whilst its under flow test.. The flow has now dropped to 100cfm as air flow does not like bends. The shorter straighter velocity stack kit only chops off about 5cfm in total giving more flow and power. The kit also shortens the tuned length of the intake system improving top end. Avoid fitting just a pod filter on the back of the throttle body . You will get a large loss. The intake /velocity stacks are important and serve more than one purpose . I think benno made his own - give us pictures

Thanks Chris. I've read about these kits installed on the fuel injected bikes, but have yet to see a carbed 2V with a velocity stack kit. I was wondering about the clearance under the airbox, etc. I'll see if I can't do a little more research on this as I would like to get the most out of my engine.

Jeff

[chris steedman]

Originally Posted by Jeff H.

Thanks Chris. I've read about these kits installed on the fuel injected bikes, but have yet to see a carbed 2V with a velocity stack kit. I was wondering about the clearance under the airbox, etc. I'll see if I can't do a little more research on this as I would like to get the most out of my engine.

Jeff

If you have a long manifold bike forget trying any velocity stack tricks . Like i mentioned before the air wont turn through all those bends so its a waste of time. If you have short manifolds with split singles they will have there own velocity stacks anyway.

Doug managed to get a couple of hp by taper boring the carbs so the air enters them a little better on long manifold bikes.

[Ducati BOB]

Originally Posted by chris steedman

If you have a long manifold bike forget trying any velocity stack tricks . Like i mentioned before the air wont turn through all those bends so its a waste of time. If you have short manifolds with split singles they will have there own velocity stacks anyway.

Doug managed to get a couple of hp by taper boring the carbs so the air enters them a little better on long manifold bikes.

+1

The FCR carb kit should have came with its own velocity stacks. For max power you will have to install the Malossi short intake manifolds with split carbs (as Chris has already said). You could however easily remove the air box and install a set of pod filters to make a few dyno runs. I would look for a spare OEM air box on eBay Motors - Autos, Used Cars, Motorcycles, Boats, Trucks, Parts, Accessories, RVs and Other Vehicles as you will have to trim your stock one down to allow just the battery, coils, power modules, etc. to be retained. The last 900SS I did with this setup gained 4hp but lost 6ftlbs of torque. Although this bike was mostly stock and nowhere near as highly modified as yours. Its definitely worth a shot and more economical than the individual carb set up. No doubt, as Chris has already stated, you will need the short manifolds, split carbs and pod filters to make max hp & torque all the was to RPM red-line.

[Jeff H.]

I really appreciate the input and I hope I didn't hijack the thread. I do have a spare airbox that I'm in the process of cutting up for a pod filter set up this winter. I'll give it a try and if I'm not happy I can always put the old airbox back on. FCR's are on the long manifolds, so I'm probably doing as well as I can expect with the current setup.

Regards,

Jeff

[Benno1803]

Hi Jeff, I'm in the process of developing a Ram Pipe and Pod Filter kit for the i.e. SS - wouldn't take a lot to adapt for carb versions.

We are making them with changeable Ram lenght to cater for different power bands.

Would you be interested?

Benno

[Jeff H.]

Hi Benno. I'm still learing how all this works. I'd sure like to see pics as the project comes along. Thanks!

[Benno1803]

Hi Jeff,

Here is a picv of the RAM pipe and filter.

Rams can be between 25mm to 90mm long.

Benno