FTN's T4/SXE Build/Conversion Thread
If you decide to cut the CSD Y what’s the worst that could happen? Mess it up and have to order one from Irate that will actually fit?

If cutting the CSD Y works well I may follow suit next time it’s off the truck. That thing is awful.
in an effort to make myself feel better, I decided to work on something different:
The CSD downpipe is a little misaligned. Misalignment seems to be a theme with the CSD parts.
So I applied a little hydraulic force.
Downpipe is now aligned to the exhaust!
I tee into the heater core supply and return where the hoses run parallel to the firewall for VO conversions.
I also usually use a 1/4 turn ball valve instead of the complicated and failure prone ‘automatic’ valves.
Ford Trucks for Ford Truck Enthusiasts
The best T4 kit is a homemade version or one pieced together from at least 2 vendors.
Above: Photo of stock intake Y casting cut up, as @brokestroke suggested, to fit T4 kit.
It is readily apparent from FTN's excellent and self explanatory photos that he is working around a variable vane mechanism that most others don't have in their way, but others (at least @RacinJasonWV ) did complain about the alignment of the CSD casting to the intake plenums (although Jason might be using the svelte looking aluminum plenums sold by Beans).
I was curious if this idea of cutting lips off the legs of the spider would be something that would "catch on" with other T4 modders, because I am concerned about the loss of the larger diameter lips that were nipped off the Y pipe legs... introducing a mechanical disadvantage to the Y pipe staying put under pressure.
As soon as I saw the hacksaw, my mind immediately began thinking of ways to make "L" brackets that utilize the threaded bosses in the valley that formerly held the OBS tandem fuel pump in place, and attaching this imaginary bracket to the CSD Y pipe, by drilling and tapping mounting holes in the unused bosses for water/meth/nitrous sprayers, or sandwiching the upper leg of the imaginary bracket in line with the brass T fitting, using a larger hole in the bracket that the T fitting would fit through.
In this manner, the imaginary L bracket would help trap the Y spider from tipping forward and out from underneath the variable vane controller should the boot clamps lose their grip (since the retention lips were cut off) when the Y pipe wants to launch under pressure.
The Irate Y-pipe is not cast like the CSD Y-pipe is and apparently fits better. I have gathered this information not from my own 1st hand experiences, but from other FTE'rs and speaking to people who have installed the Irate kit before and seeing the Y-pipe in person. Frankly, the ONLY thing about the Irate kit I was not fond of was the routing and draining method of the oil return tube.
Irate T4 kit Y-pipe is below just for comparison sake.
In post #387 above, SRBF150 mentioned:
As for the CSD Y-pipe holding while under pressure, well that is another consideration that will have to be tested. CSD does include a bracket in order to hold the Y-pipe in place under high pressure situations. I don't know if Leonard has intentions of installing the bracket or if it would even fit now that the CSD Y-pipe is shorter and the Turbonator hardware is obstructing the access to secure the bracket to the pedestal.
This is a horrible picture, but it is the best one that I could find on short notice showing the bracket that attaches to the CSD Y-pipe. You can see the bracket coming out from under the Y-pipe and down to the right corner.
Does any of this mean that CSD should not fix their Y-pipe or downpipe, nope. I think they should fix it and should fix it now. I think they should have fixed it a while ago, but that is just me and my opinion. Perhaps the Irate Y-pipe does not fit any better, I don't know. Perhaps we should commission Finnishstroker to make a batch and send them Pony Express over the pond to us.
We as consumers and DIY'rs realize that these are not pieces and parts made by Gale Banks, But they don't come with the price Banks charges either. So, there is some give and some take. I have stopped recommending people get a T4 kit or a 364.5 SXE because that has gone disastrously. People here are fully capable of making their own decisions and setting a plan to accomplish their goals. What I do now is provide my opinion, my experiences and let it ride...
CSD has problems with their kit, that is clear. I do not regret getting the CSD kit one bit, but if I ever need to replace the Y-pipe, I will try the Irate Y-pipe.
I am very grateful to see that Leonard is progressing through his install. I think I may be looking forward to the results as much as he is, OK, maybe not as much, but quite a lot...
EDIT: Oops, Sous has already made the comment about the bracket.
@SRBF150 All the holes in my y-pipe were drilled & tapped straight fortunately.
All this y-pipe talk has got me wondering if I should attempt a CF version.
I noticed in your photo the stock Y doesn't have retaining rings. So maybe it's not as big of a deal as originally thought. I will wait and see FTN's results. If his Y stays put (without the bracket) then I will likely cut mine the next time it is off the truck. The misalignment makes a headache out of what should be an easy part of the job.



















