|
I ran distilled water only in mine when I changed over. I changed it about 4 times before putting dexcool in. 502 mag mpi . It’s now a carbed 540 and still using the same system.
|
Originally Posted by smokediver
(Post 4847659)
I ran distilled water only in mine when I changed over. I changed it about 4 times before putting dexcool in. 502 mag mpi . It’s now a carbed 540 and still using the same system.
Drained block, filled with distilled water with no thermostat, ran it and drained it again. Repeated that exercise a couple times. Then filled with 50/50 AF/Distilled water. I used the green stuff because that's what CP Performance told my to use and it was their kit. Mine are 800hp 565's - greatest money I ever spent on a boat going to Closed cooling. Temps are unbelievably consistent and never climb over 150* |
greatest money I ever spent on a boat going to Closed cooling |
Closed cooling on fresh water lake. Running a 160 stat compared to a 180 stat. Any advantage bumping to a 180? Eng. 406 cubes Dart Block.
|
Originally Posted by seafordguy
(Post 4847672)
I seem to recall I did something similar.
Drained block, filled with distilled water with no thermostat, ran it and drained it again. Repeated that exercise a couple times. Then filled with 50/50 AF/Distilled water. I used the green stuff because that's what CP Performance told my to use and it was their kit. Mine are 800hp 565's - greatest money I ever spent on a boat going to Closed cooling. Temps are unbelievably consistent and never climb over 150* I fill a 110gal tub with water and lower the drive into it. Works better than any muffs ive used and doesnt overpressure anything. My tap water is probably 75psi. Really looking forward to closed cooling and actual antifreeze in the engine. Estimated ship date on the system is 10/31... so now we wait. https://cimg1.ibsrv.net/gimg/www.off...83a7f83528.jpg https://cimg2.ibsrv.net/gimg/www.off...862f3b3919.jpg |
I assume this blue fitting is to flush the current system ? (never had anything VP before)
https://cimg8.ibsrv.net/gimg/www.off...e8f1a13ae4.jpg |
2 Attachment(s)
Originally Posted by techman
(Post 4847688)
In the end, the stock Volvo tune was just not very good on that motor.
Maybe I will bump the fuel pressure up a few PSI. It's about the only thing I can tamper with. (the regulator is adjustable.) |
Originally Posted by Dragracer_Art
(Post 4847799)
This is probably the most frustrating part of my VP ownership... the lack of aftermarket support and tuning options. Mine has what I believe is "California emissions tuning" which I'm sure makes it run sub-par and lean.
Maybe I will bump the fuel pressure up a few PSI. It's about the only thing I can tamper with. (the regulator is adjustable.) |
| All times are GMT -5. The time now is 01:52 AM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.