Havent posted some projects in awhile...
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 5,273
Likes: 1
From: Traverse City, Michigan, USA
Dual 40mm wastegate, t4 Excaliber. Customer in the Netherlands.











Yamaha RX1 Snowmobile, partial turbo kit. We have a customer looking for 400hp or so, will be racing the 04-05 season. Another sled with close to 400hp went 500ft in 4 seconds Flat, at 127mph. Grass Drag, and sand-bagging to stay in a lower class.




This manifold/DP is heavily, heavily heat-wrapped, so there is no point in buffing them up.
Thats all for now, there will be some S2k pics next weekend.











Yamaha RX1 Snowmobile, partial turbo kit. We have a customer looking for 400hp or so, will be racing the 04-05 season. Another sled with close to 400hp went 500ft in 4 seconds Flat, at 127mph. Grass Drag, and sand-bagging to stay in a lower class.




This manifold/DP is heavily, heavily heat-wrapped, so there is no point in buffing them up.
Thats all for now, there will be some S2k pics next weekend.
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 5,273
Likes: 1
From: Traverse City, Michigan, USA
thanks, Im excited about this sled stuff, it looks to be very promising(40+ orders, and non-stop phone calls). I may have to shut down the internet orders to handle the load(Im going to wait till a few $ have arrived from the sled guys first).
We are dynoing sometime late this week. Im going to try my darndest to get a video...
We are dynoing sometime late this week. Im going to try my darndest to get a video...
Trending Topics
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA »</TD></TR><TR><TD CLASS="quote">header looks pritty cool does a steped header have any beniffits?</TD></TR></TABLE>
Stepped headers do have benefits although I can't tell you how, haven't done enough research.
The mani's for the sled are incredible, thats the first time I've seen the finished product. I remember when you were doing the design and jig a few months ago when I was up there hleping with the sol.....all I can say is w0W
Stepped headers do have benefits although I can't tell you how, haven't done enough research.
The mani's for the sled are incredible, thats the first time I've seen the finished product. I remember when you were doing the design and jig a few months ago when I was up there hleping with the sol.....all I can say is w0W
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA »</TD></TR><TR><TD CLASS="quote">header looks pritty cool
does a steped header have any beniffits?</TD></TR></TABLE>
my understanding is that they help with torque and preventing reversion.
does a steped header have any beniffits?</TD></TR></TABLE>my understanding is that they help with torque and preventing reversion.
Thread Starter
Honda-Tech Member
Joined: Jun 2002
Posts: 5,273
Likes: 1
From: Traverse City, Michigan, USA
Ive read that some guys didnt want to do butt-welds because they are a little more difficult. So they purchased piping in 1/8" increments, and noticed large gains over straight diameter primaries.
The stepped primaries offer benefits in two ways:
increased torque across the entire rpm range;
and anti-reversion.
The anti-reversion helps to keep the cylinder burn "clean". It gets dirty from Exhaust pulses reversing back into the cylinder right before the exhaust valves close. The Anti-reversion suppresses this effect, yielding more power overall.
This is my take on it anyway!
I really need another new camera, these pictures dont do justice to what Im capable of in the welding arena. Its amazing what two years of 80hrs a week will do to a self-taught welder
The stepped primaries offer benefits in two ways:
increased torque across the entire rpm range;
and anti-reversion.
The anti-reversion helps to keep the cylinder burn "clean". It gets dirty from Exhaust pulses reversing back into the cylinder right before the exhaust valves close. The Anti-reversion suppresses this effect, yielding more power overall.
This is my take on it anyway!

I really need another new camera, these pictures dont do justice to what Im capable of in the welding arena. Its amazing what two years of 80hrs a week will do to a self-taught welder
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA »</TD></TR><TR><TD CLASS="quote">header looks pritty cool
does a steped header have any beniffits?</TD></TR></TABLE>
It acts similar to how an expansion chamber would.
Think of it like this, when you fill a bottle up w/ water and freeze it the water molecules expand and with no where to go the bottle breaks. Since it takes an enormous amount of pressure to crack or break steel (more than your average motor can create) it follows the path of least resistance which is back into the combustion chamber, as tinker said, creating a "dirty burn" by mixing the fresh oxygen/fuel with the old exhaust fumes.
does a steped header have any beniffits?</TD></TR></TABLE>It acts similar to how an expansion chamber would.
Think of it like this, when you fill a bottle up w/ water and freeze it the water molecules expand and with no where to go the bottle breaks. Since it takes an enormous amount of pressure to crack or break steel (more than your average motor can create) it follows the path of least resistance which is back into the combustion chamber, as tinker said, creating a "dirty burn" by mixing the fresh oxygen/fuel with the old exhaust fumes.
Joined: Dec 2001
Posts: 9,091
Likes: 28
From: the internet and I WILL STEP ON YOU
very nice cody
I was more than happy with my parts I bought....Ill have a good pic later tonight. If you want something, Id be willing to be cody could do it
I was more than happy with my parts I bought....Ill have a good pic later tonight. If you want something, Id be willing to be cody could do it
Joined: Dec 2001
Posts: 9,091
Likes: 28
From: the internet and I WILL STEP ON YOU
more of his bling blang work


i like whoring my stuff and all but seriously, i dont think anyone else would have even made the attempt on that downpipe setup if i had asked....hell cody was the one that talked me into it lol. All 3 pieces are gorgeous and I know theyll function very well


i like whoring my stuff and all but seriously, i dont think anyone else would have even made the attempt on that downpipe setup if i had asked....hell cody was the one that talked me into it lol. All 3 pieces are gorgeous and I know theyll function very well











