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Originally Posted by cawcislo
Good job, a quick question on the 4th cylinder cooling. With the hole bolted to the top of the thermostat area will it not now be the heighest part of the cooling system and trap air possibly? The hole at the top of the thermostat area is used to bleed the cooling system (highest point), with this hose on top and even higher will that not create a possible air pocket issue? Where is the best spot to run the 4th cylinder coolant to? Was it to the waterpump?
I don't know if the best solution was ever agreed to? The adapter for the side of the head looks good I just think we need to add a little more thought to where to run that hose to.
I wonder if we should look into seeing how VW did it. I had a 96 VW Golf CL with a 1.8L tbi (canadian version) which has a very similar head/engine style (I believe chrysler actually used VW's design to make the 2.2/2.5) and it had a plastic thermostat like fiting (o-ring style) which came out very close to where your fitting is (I specifically remember it as the plastic cracked (pretty common after hundreds of heat cycles). I just don't remember where that hose ran to. I've attached a pic of the motor, but it's not great, will have to do more research. Do you know what has to be done to get it to work with a more stock setup which uses one of those holes to mount a bracket which holds the stock airbox. I'm assuming a spacer would be needed and or the bracket modified to fit with this setup.
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Wow that does look like our engine..
When bleeding the cooling system, you can just disconnect the hose from the t-stathousing and hold the open end of it near the same height as the bleeder port, I think that would allow you to bleed them system properly.
This is totally an evolving project! We've already gone through three different adapter designs in the last two weeks lol. Ill do whatever you guys want as long as its still something I can reasonably hope to make a few bucks on.
As far as where to hook the hose..can someone explain to me why connecting it to the tstat housing is not as good, if not better than any other location? Its like relocating the tstat housing to the proper place on the end of the head, to where we would never have even thought about needing this mod, right? Plus, you send hot coolant through the radiator, which is important, right?
Is it that sending it to the water pump goes above and beyond just eliminating the wall and actually drastically increases flow or something? Is that it?
I laid out a piece of hose in my '90 2.5 daytona and it looks like 3 feet would get you from the freeze plug to the water pump. That adds about $10 to the cost of the kit. I'm assuming you would want a straight fitting instead of a 90 to connect the hose to the pump, so that doesnt really change the price.
Its too big to fit in small priority rate box though, and too heavy for first class, so shipping goes up $5.
So I can make you a custom kit as follows, and you can be our water pump pioneer :)
-3 feet instead of 1 foot of hose +$10
-replace one of the 90 degree fittings with a straight 3/8npt to 8an fitting $0
-shipping +$5
So $75 shipped gets you a water pump version. Hehe I hope Pope isnt listening I think he wanted that. I can do it for you too Pope if you want, just paypal me the extra $15, but you both will have to wait a couple days for the hose and straight fittings to come in. Would ship early next week.
As far as the stock airbox, the previous version of the adapter had only one bolt hole (the upper one, pics earlier in this thread) which apparently is used for the heater hose bracket? I think that would let you use the stock airbox. My daytona has the weird lunchbox airbox (short and long front to back) which I think only uses the lower hole.
I could modify the adapter to have a custom hole pattern for whatever, but I would need dimensions if its not my car.
TurboDodge.com 
