LSx into Porsche. . . and I'm going to need some help

So how does a backward vette drive :)

are you still in law school??? amazing if you pulled this off, even crazier if you did while in school! nice work
 
I commend you on this project...Not only is it VERY cool.....But what a talent to do this yourself....I like to think I know my way around cars well, then I see this and I wouldn't even know where to start!! Good work, sir!! Congrats on the great build!!!
 
white out said:
Dug into the car tonight.

1. wired the water pump to a switch (looks like a race car inside)
2. wired the tachometer
3. re-routed the coolant lines that were wrong

The coolant reservoir is still not draining coolant, it's the highest point, and there's no coolant in the engine. Trying to figure out this is my next hurdle.
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Has all air been removed from the engine? Does the radiator have coolant in it?

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white out said:
The engine is only part of coolant system without coolant. All lines running to the front of the car and radiators are full.
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Remove the water outlet hose and pour coolant into the motor that way. I don't remember offhand if the thermostat has a small hole in it for system filling but it might be the issue. You can also try filling through the heater hoses.
mikesfastss said:
did you check the rotation of the water pump
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Pump rotation does not matter. Even if you are spinning that pump backwards, it's still a centrifugal pump and will move water in the standard direction, just not efficiently. Not having any water in the pump will not allow the system to make any pressure or flow, which is why i suggested filling through the outlet hose or the heater hoses.


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white out said:
It's an electric, remote mounted pump.
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I guess I'd have to know a little more about how it's all plumbed. I.e. where in the system is the pump(height wise), where is the reservoir plumbed into? Are the upper vent lines (little lines bolted to the heads) tied into the reservoir? Is the reservoir a pressurized tank or low pressure?

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white out said:
Just filled the engine with 2 gallons of coolant, which topped off the system. Then turned the pump on and fluid started to flow out of one of the open hoses. :D

I don't know if I need more fluid or what to get coolant to come out the steam vent. Should I fill the engine from the steam vent?

How much pressure do water pumps usually flow? I thought that the flow would be much stronger than what I saw with the open hose.
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You know what...... i have the service info for that car and forgot about it. Lol. I have alldata. Swing by and we can print off all the info you will ever want.

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white out said:
New GM temp sensor installed and no more misfires!

old vs. new sensor
30EED545-A480-4D78-9089-C101B08DDADA-1827-000001C2F00DC813.jpg


an idea of how useless my exhaust is
394465D8-404C-4BF5-BB49-85CACE46CAA6-716-000000B26FA7705E.jpg



photo of the exhaust, taken by Mr. Magoo
CB56DBC1-FADF-49D3-AB1B-50AB7B447A6F-1827-000001C2E898768A.jpg
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Who ended up doing the exhaust?

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white out said:
Just filled the engine with 2 gallons of coolant, which topped off the system. Then turned the pump on and fluid started to flow out of one of the open hoses. :D

I don't know if I need more fluid or what to get coolant to come out the steam vent. Should I fill the engine from the steam vent?

How much pressure do water pumps usually flow? I thought that the flow would be much stronger than what I saw with the open hose.
Click to expand...

Which open hose?

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white out said:
one of the upper ports on the front of the block.
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On an LS motor the mechanical water pump can use several hp at redline. Do you think your electric pump at 12 volts can make 2-3 horsepower? Thats why your outlet flow is not all that impressive. Keep in mind though that you're also looking at the flow after all of the block and head water jackets have a ready resisted the flow and you're seeing the flow after all the resistance has been applied.

So what you're seeing is likely the combination of end flow, and low power electric water pumps



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First time I noticed this project but just read through the entire thread.

Very interesting swap and nice work! I'm glad you posted the problems and miscellaneous issues/mistakes, we all do things like that whether we mention it or not! Reading them made me laugh at some of the ones I've made.

Looking forward to seeing more videos of the car or maybe in person some point. Power to weight should be great with that setup and having all that weight over the rear wheels... :)
I'm just now parting out a C5 Z06 and half tempted to keep the engine for something along these lines haha.
 
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