Joined
·
2,932 Posts
102-108mm Closed Deck Big Bore
1 - 20 of 46 Posts
Joined
·
3,184 Posts
That thing looks strong as hell!!!
Joined
·
2,932 Posts
As you can see in the pic there is one area we couldn't fill, It's not going to compromise any strength or affect the head gasket seal. The gasket and head both cover it.
Traitor, It comes out to 727. Stock bore is actually 686cc, 41cc gain.
RednBlack, It'll be the strongest part on the bike. It started out as a solid 5/8" thick walled sleeve.
![]()
![]()
Traitor, It comes out to 727. Stock bore is actually 686cc, 41cc gain.
RednBlack, It'll be the strongest part on the bike. It started out as a solid 5/8" thick walled sleeve.
Joined
·
87 Posts
Smooth are you gonna use a XR or XX head on that build?
Joined
·
2,932 Posts
Depends. If funds permit I'm considering a turbo setup and will use the XX head due to the ease of a single port. If I can't swing the turbo setup I'll use an XR in hopes that it makes more power with the dual Exh ports.
There's still two other items I've got to finish before I get to the head options so I got plenty of time to decide. I've actually got two XR heads, I'm going to port one myself and prolly sell the other if anyone is interested.
Joined
·
2,932 Posts
The biggest issue is the oil circuit to the top of the head. Nothing huge but more of a thorn. The motor mount support that is missing on the XR head is debatable. I'd feel comfortable running without it.
Joined
·
61 Posts
where will you be purchasing the turbo setup from? english racing?
Joined
·
2,487 Posts
Can't wait to see how this goes. I know in the raptor world the closer your bike is to stock the better for a turbo setup, hopefully you’ll be able to get it all dialed in with all your mods.
Joined
·
410 Posts
I'd like to see this thing run with a turbo as well
You can run a turbo on a modded bike but it needs to be standard compression pistons
You can run a turbo on a modded bike but it needs to be standard compression pistons
Joined
·
2,487 Posts
I was told cam and head work would need to be different on a turbo setup as well.
Joined
·
2,932 Posts
08700X - Turbo's are very versatile. They can perform well on everything from stock to fully modded bikes. I'm not sure who told you about them working best on stock raptors but but that's not correct.
Regarding your second post- There are special Turbo cams but you really want see much benefit from them except on a full blown race motor and then it would put your power range way up top losing most all your bottom end power. As far as the head work there really isn't any special turbo porting. Having a good port job will help you spool faster, but it wont really effect peak HP.
Ranger - You can run turbo on any compression as long as you have the correct octane to support it. Lower compression will give you slower spool up but higher peak HP. Higher compression will give you a flatter power band, killer TQ and faster spool up. If I would turbo it I'd prolly run 9-10:1 compression and just 4-6psi boost.
Thank ya DL
Regarding your second post- There are special Turbo cams but you really want see much benefit from them except on a full blown race motor and then it would put your power range way up top losing most all your bottom end power. As far as the head work there really isn't any special turbo porting. Having a good port job will help you spool faster, but it wont really effect peak HP.
Ranger - You can run turbo on any compression as long as you have the correct octane to support it. Lower compression will give you slower spool up but higher peak HP. Higher compression will give you a flatter power band, killer TQ and faster spool up. If I would turbo it I'd prolly run 9-10:1 compression and just 4-6psi boost.
Thank ya DL
Joined
·
3,184 Posts
so Smooth you gonna go down on compression with the turbo setup?
1 - 20 of 46 Posts
