A Little Bit O' Nastiness.....

[Patrick]

Thought I'd share a few pics of an SV650 engine we're currently building for a WERA racer.

It's a 2nd Generation engine. In the past engines that we've built like this run 90 - 92 rwhp and are very reliable when run on race fuel.

We as well as other racers have won multiple sprint and endurance races / championships with these engines.




The pistons are 12.5 to 1 JE 2mm over pistons, for a displacement of 678cc


http://i120.photobucket.com/albums/o164/pohart/SV650011.jpg


http://i120.photobucket.com/albums/o164/pohart/222.jpg




The bottom end of an SV is the heart of the motor, skip any steps, skimp on components, and you'll pay for it with reliability issues.

Carillo "H" beam rods.


http://i120.photobucket.com/albums/o164/pohart/SV650009.jpg



http://i120.photobucket.com/albums/o164/pohart/SV65d0009.jpg



The crank is at my machine shop right now being "massaged", it'll return lighter and stronger. I'll get some pics up in a few days.


Cylinder head;

We've done a light decking to make certain it's absolutely flat, peromed a 5 angle valve job, and some port reshaping and cleaning up.
We don't mirror polish ports as we've found that a slightly rougher finish better atomizes the fuel.

http://i120.photobucket.com/albums/o164/pohart/SV650012.jpg


http://i120.photobucket.com/albums/o164/pohart/SV650010.jpg


http://i120.photobucket.com/albums/o164/pohart/SV650018.jpg




Anyhow, I thought I'd share. I'll be sure to post pics of the final project as well as dyno charts.:icon_thum

[CarbonJames]

nice!!! wish the KX looked like that!

[S_M_J82]

Thought I'd share a few pics of an SV650 engine we're currently building for a WERA racer.

It's a 2nd Generation engine. In the past engines that we've built like this run 90 - 92 rwhp and are very reliable when run on race fuel.

We as well as other racers have won multiple sprint and endurance races / championships with these engines.




The pistons are 12.5 to 1 JE 2mm over pistons, for a displacement of 678cc


http://i120.photobucket.com/albums/o164/pohart/SV650011.jpg


http://i120.photobucket.com/albums/o164/pohart/222.jpg




The bottom end of an SV is the heart of the motor, skip any steps, skimp on components, and you'll pay for it with reliability issues.

Carillo "H" beam rods.


http://i120.photobucket.com/albums/o164/pohart/SV650009.jpg



http://i120.photobucket.com/albums/o164/pohart/SV65d0009.jpg



The crank is at my machine shop right now being "massaged", it'll return lighter and stronger. I'll get some pics up in a few days.


Cylinder head;

We've done a light decking to make certain it's absolutely flat, peromed a 5 angle valve job, and some port reshaping and cleaning up.
We don't mirror polish ports as we've found that a slightly rougher finish better atomizes the fuel.

http://i120.photobucket.com/albums/o164/pohart/SV650012.jpg


http://i120.photobucket.com/albums/o164/pohart/SV650010.jpg


http://i120.photobucket.com/albums/o164/pohart/SV650018.jpg




Anyhow, I thought I'd share. I'll be sure to post pics of the final project as well as dyno charts.:icon_thum

can we do that to my 04???? haha and how much:eek3:

[SPYDER BITE]

sweet

[hotnanas]

nice!
you guys do the machining in house Patrick?

[Scorpio]

Grade A work Patrick.
Whats stock compression and a sv anyways?

[Scorpio]

ohh, and I've been meaning to ask you, do you know of anyway to reliably get enough power out of my 50cc ruckus to make it do about 55-60mph?

[Patrick]

nice!
you guys do the machining in house Patrick?



We do all of the head work in-house.

I use a dedicated machine shop for the cylinder boring / deck work, and I use a specific crank vendor for the crank work, and have them do it to my specs.

[Romeo36]

lol we're building a motor for my bike right now. its apart and cleaned and ready to go back together

[Squanto84]

Looks good Partick! :icon_thum I've gone through similar stuff on cars, my GF's Miata has forged internals, waitin for a little boost at the moment. Carillo H-Beams are the way to go, very strong!

[Patrick]

can we do that to my 04???? haha and how much:eek3:

Yes we can.... but it's NOT cheap.:eek3::nod:

[Patrick]

Grade A work Patrick.
Whats stock compression and a sv anyways?

Tom,

It's 11.5:1, and give me a call on the Ruckus.:hello:

How're you feeling anyway?

[S_M_J82]

Yes we can.... but it's NOT cheap.:eek3::nod:

D'OH!!!!:BangHead: lol. one day i will do that when i win the megebucks or powerball i promise:icon_thum

[Moody]

Looks good! Nothing is sexier then a clean motor with new go fast parts. That SV should be a fun one to ride!

[MadseasoN]

ohh, and I've been meaning to ask you, do you know of anyway to reliably get enough power out of my 50cc ruckus to make it do about 55-60mph?

Get a rope and tie it to my XR70. Total cost: $1.75 :keke:


Nice work on the SV, Patrick.

[Scorpio]

Tom,

It's 11.5:1, and give me a call on the Ruckus.:hello:

How're you feeling anyway?



Will do Patrick.
I'm getting better by the way, thanks for asking.

[vmaxgirl]

That is soooo beautiful. :notworthy:notworthy