My 427 SOHC Build..... Finally the time has come!

[cobracammer]

Ok guys. One step at a time. Filled the tank with 93 octane. Pulled the car out of the garage into the driveway. Started over with a fresh tune. This is kind of embarassing, but once the car hits operating temp, it asks you to watch the A/F bar.... It asks you to adjust the idle blade screws until the bar reaches the target, and then says push enter to recalibrate

Never looked at the screen this long so I never did this.... But now I did and its locked in

The next problem is the temperature. Fans kick on at 190, and they both run rull blast.... Never shutting off.  And the car still overheats. How to solve?  If there an addative or something that would help?  The radiator just barely fits, so I am not sure I could get a bigger radiator?

On a seperate note, thunderstorm came, so I put the car in 1st, pulled into the road, put it in reverse, backed up. And went foward into the garage.  Transmission and clutch work ( positive note) however as soon as I pulled into the garage, it was already boiling over

The fans pull 2500 cfm in total, and i read the radiator is tri core (?). Im pretty sure its not!

[machoneman]

How hot is hot? Does the temp ever stabilize or is it exceeding say 220 or so and still rising? Did you kick on the heater full blast and the heater fan switch on high? Still rising? With the heater on, feel the hoses as the hot one should be.......hot!

[blykins]

Did you top off the fluid once the thermostat opened?

[cobracammer]

Yes, goes past 220. Fans slow it down, but still boils out of the degas tank. I do not have a heater, so I cannot turn it on. I never reconnected the heater hoses. I am guessing not enough radiator or not enough CFM on fan?

[blykins]

Where's the timing?

[foxlincoln]

I have been following this build and I think the modern cooling system is wrong for the SOHC.I would install a 4 core after market radiator,can the degas bottle and lower t-stat housing and look at the SOHC t-stat.Did Ford use restriction plates or t-stats on the SOHC.I don't see a bypass on the water pump,seems if the t-stat was closed the water pump would be deadheading and creating cavitation.I also remember t-stats in the 60's were 160 and 180.The 190's came latter on emission vehicles.Hope this helps.Your have tackled a build a lot of pros would stay away from.I love it.Just a little more to go.Thank Terry

[machoneman]

Are the head gaskets on correctly, tabs showing at the lower front corner of each head?

http://diyford.com/wp-content/uploads/2013/11/452.jpg

[cobracammer]

I think thats a good idea. New multi core radiator, get rid of degas bottle, and add a radiator cap inline with the upper radiator hose ( there is still the gas vent on the top of the radiator that vents into the degas bottle).

Going to think this one through and do some research on radiators that will fit 05-11 ford mustang GT's

Other than that, car starts up.... Smokes a ton less ( but still smokes a little) and drives. Just have to get it to stay cool

Also, timing is at 20 degrees BTDC.  I will get it down to 13 ( requires a little more effort due to interference with the water neck) after i get the radiator situation figured out

Thanks guys and Happy Memorial Day

[My427stang]

I think you don't have enough fan.  I like to see 4000 cfm for a pickup truck with a lot more exit area, the more the better.  Your fans are fighting it.  Any way to fit something like a Lincoln or Taurus fan?

Does it get hot on the road or only idling?  If only idling and low speed, it's airflow.  If always, its radiator.

[cobracammer]

Just at idle. I havent driven it yet, so unsure if it overheats then. Let me see if I can find 2 same size fans that will suck 2000 CFM or more each

Cannot fit anything but slim fit fans off center due to water pump pulley.  Ill find some stuff and post for thoughts

Also, still kinda normal to be smoking a little at this point?  Alot less than originally, but noticeable

[Heo]

You have run the car with open hood?
Some cars i had would boil wth the hood
open  Dont know how the Saleen is with
hood open

[cobracammer]

Yes always with hood open

[Nightmist66]

http://www.summitracing.com/parts/der-16826/overview/ Derale staggered twin elcectric fans w/ shroud.

Maximum Fan CFM:4,000 cfm

Fan Quantity:Dual

Fan Diameter (in):12.000 in.

Height (in):17.125 in.

Width (in):25.625 in.

Thickness (in):3.500 in.

Number of Blades:7 blades

Blade Material:Plastic

Blade Color:Black

Shroud Color:Natural

Shroud Material:Aluminum

Amp Draw:24.80 amps

Air Conditioning Relay Included:No

Mounting Brackets Included:Yes

Mounting Hardware Included:Yes

Not sure if this will work for you but looks like a nice setup.

[Barry_R]

Look to Spal for fans - much better product than the vast majority of aftermarket stuff out there. 

They have high flow and each requires a separate relay.

They make some pretty low profile ones too - I have a pair (12" and 13" if I recall correctly) on my +/-700HP engine in a Torino.  One is wired to come on whenever the car is running, the other is on a temperature switch and almost never comes on.  Using a pair lets you have some extra room in the "middle" in between fans where the water pump pulley wants to live.

[Nightmist66]

+1 what Barry said. I am not certain, but I believe Derale uses the Spal fans in their setup.