Time to go Stage II!

[Alky V6]

The business end of the Y pipe.
The old Y pipe w/T4 flange below. The old setup used a bellows that was NOT meant for pre-turbo use. The internal stainless weave had to be removed after it moved to almost block the passage, due to the heat levels.

 

[Alky V6]

The next step will be to figure out how to mount the single wastegate. I don't want to disturb the area where the two collector tubes meet the flange, the way I did with the old Y pipe. I like the way the flow is directed to feed the turbine housing in that area.
Somehow, I want to install a tiny Y pipe that will feed off of the collectors a little further up away from the immediate area where the two collector pipes join. Feeding just past and up against the bellows.
Inside this wastegate Y pipe will be a wall keeping the exhaust pulse energy from the two cylinder banks separated right up to the wastegate valve. I want to keep to a minimum, the area where the exhaust streams from the two cylinder banks can mingle and possibly dilute the pulse energies before reaching the turbine housing. Of course, once the wastegate cracks open when the target boost level is reached, the two sides can mingle close to the valve, but I doubt there would be any flow from one bank to the other in that area. I'm sure the flow will much prefer to exit via the low pressure zone presented by the wastegate.

 

[kidglok]

i like how brian (cotton) did this setup, only this one is upside down from the way you have the turbo fed,

http://community.cottonsperformance.viper05.citasystems.net/forum/showthread.php?t=2458&page=6

 

[Alky V6]

The only thing about feeding the turbo from the bottom is;
1) You're forced to increase the length of the collectors beyond a proper tuned length.
2) More bends and more intense bends have to be used.
3) The volume of the exhaust system is increased which can cool the exhaust stream and slow exhaust velocity.

 

[Alky V6]

The collectors in place.

 

[kidglok]

The collectors in place.

That looks bad ass Donnie!

 

[Squid4life]

Looks amazing! You going to have the headers done so i can seee them tomorrow?

 

[Alky V6]

Looks amazing! You going to have the headers done so i can seee them tomorrow?

Hah!!!

 

[Alky V6]

That looks bad ass Donnie!

Thanks.
Have you ever seen a picture of the Stage I setup?

 

[kidglok]

Thanks.
Have you ever seen a picture of the Stage I setup?

i think i did, its on your facebook right?

 

[Alky V6]

i think i did, its on your facebook right?

Yes. So you already have an idea of where I'm going with the new headers.

 

[kidglok]

Yes. So you already have an idea of where I'm going with the new headers.

yea, i like it a lot! wish i could make a set like that

 

[ravege]

The only thing about feeding the turbo from the bottom is;

I think the reference to the Cotton thread was for the wastegate y pipe, not the design of the headers.

 

[Alky V6]

I think the reference to the Cotton thread was for the wastegate y pipe, not the design of the headers.

Oh. I didn't scroll down far enough on the thread.
Yes. That's the same idea I had on the wastegate plumbing. A little more compact, though.

 

[278cikiller]

Donnie like to ask? Do you build your own motors.

 

[Alky V6]

Donnie like to ask? Do you build your own motors.

Yes, I build my own engines. I do outsource the machine work, but I determine the clearances, and the machine work is performed to my specifications. I then double check the machine work, perform a complete blueprinting and assemble my own engines.
The first engine I assembled was a n/a, street/strip SBC for my 68 Chevelle in high school in the early 1970s. A 307 cid smallblock that did 12.0s in the quarter. 600 cfm double pumper carb. Configured and tuned the car myself.
There was a time when I was beating up on Ford big blocks on the street while I still had a 2 barrel carb on the thing. I had everyone scratching their heads. They couldn't believe it was a 307? That's impossible!!! They always asked me to pop the hood, expecting to find something to explain their disgrace. What they saw was a stock 2 barrel carb on a stock intake with a modified stock air cleaner housing and stock valves covers, freshly painted a nice Chevrolet orange.

 

[278cikiller]

Yes, I build my own engines. I do outsource the machine work, but I determine the clearances, and the machine work is performed to my specifications. I then double check the machine work, perform a complete blueprinting and assemble my own engines.
The first engine I assembled was a n/a, street/strip SBC for my 68 Chevelle in high school in the early 1970s. A 307 cid smallblock that did 12.0s in the quarter. 600 cfm double pumper carb. Configured and tuned the car myself.
There was a time when I was beating up on Ford big blocks on the street while I still had a 2 barrel carb on the thing. I had everyone scratching their heads. They couldn't believe it was a 307? That's impossible!!! They always asked me to pop the hood, expecting to find something to explain their disgrace.

Thank's Donnie. What do think the ET's & or MPH in your cars set up.

 

[Alky V6]

Thank's Donnie. What do think the ET's & or MPH in your cars set up.

The big question is going to be traction with these small tires, but the projections are 7.80s-7.90s at 173+ mph in the quarter with a 3300 lb. car. 5.10-5.20s at 139+ mph in the 1/8. 1.20 or quicker 60 foot.
That's using a traction factor of 94% (a really, really good track).

 

[278cikiller]

The big question is going to be traction with these small tires, but the projections are 7.80s-7.90s at 173+ mph in the quarter. 5.10-5.20s at 139+ mph in the 1/8. 1.20 or quicker 60 foot.
That's using a traction factor of 94% (a really, really good track).

That's getting it done ,Thanks Donnie.

 

[Alky V6]

The wastegate plumbing is almost finished. I should have some pics tomorrow.
I'm sitting here as some migraine medicine is kicking in, and I was thinking about the nitrous system and the new intake up-pipe plumbing job that's coming up. I still plan on running an intercooler, and I need about 80% efficiency from the intercooler system. What if instead of using water as the cooling medium with a liquid intercooler, I used nitrous oxide? I will have nitrous onboard already, and I will be using the nitrous for spooling purposes, as I've done in the past. Then, after the turbo has reached the target boost level and the nitrous to the engine has been shut off, the nitrous could be diverted to the intercooler.
After the intercooler the gas could then be run to a small air to air intercooler in the plumbing between the air cleaner and turbo compressor. The nitrous would be used twice before being expelled to the atmosphere.
What if instead of expelling the nitrous randomly into the atmosphere, it was expelled into a small half-shield surrounding the intake air filter? The nitrous would be used twice over through two intercoolers, then partially consumed by the engine instead of just being wasted overboard.
What about running the nitrous system purge into the liquid style intercooler to reduce intercooler temps in preparation for the run before staging?