265 Hemi to efi

Converting To Delco ECU From Carby Or Other Injection Systems
User avatar
Holden202T
Posts: 10311
Joined: Sat Feb 28, 2009 9:05 pm
Location: Tenambit, NSW
Contact:

Re: 265 Hemi to efi

Post by Holden202T »

Thanks for the info ill look into it!
heff0018
Posts: 888
Joined: Tue Apr 21, 2015 1:42 pm
cars: CL valiant charger, VH valiant charger

Re: 265 Hemi to efi

Post by heff0018 »

Hi all

I have been sorting out some radiator problems over the holidays. Seems like the heat from the bigger turbo has overwhelmed the stock radiator but I had a aluminium one lying around that was the right size and configuration. I also needed to relocate the power steering pump so that I could offset the radiator to one side and allow enough room to get a proper cold air intake setup happening.
ps1.JPG
ps1.JPG (124.66 KiB) Viewed 3339 times
ps2.JPG
ps2.JPG (128.11 KiB) Viewed 3339 times
ps3.JPG
ps3.JPG (88.18 KiB) Viewed 3339 times
ps4.JPG
ps4.JPG (112.88 KiB) Viewed 3339 times
ps5.JPG
ps5.JPG (101.24 KiB) Viewed 3339 times
ps6.JPG
ps6.JPG (122.91 KiB) Viewed 3339 times
heff0018
Posts: 888
Joined: Tue Apr 21, 2015 1:42 pm
cars: CL valiant charger, VH valiant charger

Re: 265 Hemi to efi

Post by heff0018 »

Found a Camry over flow tank with factory mounts fitted nicely. $12 from Upullit.
rad8.JPG
rad8.JPG (134.49 KiB) Viewed 3339 times
Its going to be real hot in Adelaide soon so will be able to test it under extreme conditions.
User avatar
Holden202T
Posts: 10311
Joined: Sat Feb 28, 2009 9:05 pm
Location: Tenambit, NSW
Contact:

Re: 265 Hemi to efi

Post by Holden202T »

nice and out of the way!
heff0018
Posts: 888
Joined: Tue Apr 21, 2015 1:42 pm
cars: CL valiant charger, VH valiant charger

Re: 265 Hemi to efi

Post by heff0018 »

The tank might get toasted by the turbo but are cheap to replace
heff0018
Posts: 888
Joined: Tue Apr 21, 2015 1:42 pm
cars: CL valiant charger, VH valiant charger

Re: 265 Hemi to efi

Post by heff0018 »

Still not 100% happy with the radiator so I have shoehorned an even bigger unit from a CL into it. The current aluminium one is fine at cruise where the temp sits at around 80 degrees, it’s also ok in heavy traffic stopping And starting but if I pull up and stop at idle it hits 100 degrees in about 5 minutes. It’s 39 degrees tomorrow so will be good test conditions
Last edited by heff0018 on Fri Jan 11, 2019 7:08 am, edited 1 time in total.
User avatar
delcowizzid
Posts: 5493
Joined: Sat Feb 28, 2009 8:38 pm
Location: Wellington NZ
Contact:

Re: 265 Hemi to efi

Post by delcowizzid »

Nothing beats copper and brass radiators for cooling and get a shroud on it so the fan works instead of paddling air around in a circle
If Its Got Gas Or Ass Count Me In.if it cant be fixed with a hammer you have an electrical problem
heff0018
Posts: 888
Joined: Tue Apr 21, 2015 1:42 pm
cars: CL valiant charger, VH valiant charger

Re: 265 Hemi to efi

Post by heff0018 »

That was something I wasn’t sure about re copper vs aluminium. Another bonus of using the later model CL radiator is that is comes with a factory shroud. I reckon if I persevered with the aluminium setup and modified a shroud to suit the smaller radiator it would have improved the overheating at idle problem. It’s just I know with my old CL charger Which had the same radiator setup I could idle for long periods without any overheating. The difference is of course the turbo.
Charlescrown
Posts: 1831
Joined: Sat Aug 06, 2011 7:58 am
cars: V8 VR Commodore BT1
LB Lancer 2L turbo & Delco
Starion TBI with Delco
Mitsubishi Lancer EVO4 track car
NA MX5
3 vintage motor bikes
Location: Padstow NSW

Re: 265 Hemi to efi

Post by Charlescrown »

I don't think there's much between alloy and copper. Yes copper is better but is it that much better. Where did you get that fan. It doesn't look like a Valiant one to me. Why not put a couple of thermo fans on and set the temp to say 85 deg.
User avatar
vlad01
Posts: 7780
Joined: Mon Oct 08, 2012 6:41 pm
cars: VP I S
VP I executive
VP II executive
VP II executive #2
VR II executive
Location: Kyneton, Vic

Re: 265 Hemi to efi

Post by vlad01 »

alloy is usually a lot better as the limiting factor is the solder on copper ones where as the alloy ones are all alloy, even the brazing is aluminium . The solder has a far worse thermal transfer than aluminium , about 1/4 of the rate iirc. So the solder joints on the fins are the bottle neck, also brass is worse than aluminium too. This is why copper rads are 50-100% thicker than alloy ones for the same cooling capacity.

This can be verified here.


https://www.engineeringtoolbox.com/ther ... d_858.html
I'm the director of VSH (Vlad's Spec Holden), because HSV were doing it ass about.
Post Reply