525SC Rebuild Recomendations
#51
Yeah I got a 7" lower with a 2.875" upper, if I go to 3.25" upper or a 6.5" lower that's put me about 2.09:1 to 2.15:1. And with my supper chiller boost reduction, I think I'd lucky to make 5lbs with that set up.
P.S. I'm looking for a automotive style keyed front shaft if someone has one laying around ( Blower is apart rebuilt and waiting to go back together .
P.S. I'm looking for a automotive style keyed front shaft if someone has one laying around ( Blower is apart rebuilt and waiting to go back together .
#52
Charter Member # 55
Charter Member
They may have been 3.5" and 7" stock. I can't remember for sure, and thinking back, I think they were.
Either way, you are more than 2.15 overdriven.
Divide bottom diameter by top diameter and you are at 2.43:1
Either way, you are more than 2.15 overdriven.
Divide bottom diameter by top diameter and you are at 2.43:1
#55
Ok doing the alighn-hone and need to know what main cap bolts to run, stock or ARP?
What's the max HP stock GM 4-bolt main bolts should be ran up to with a blower?
Thanks
What's the max HP stock GM 4-bolt main bolts should be ran up to with a blower?
Thanks
Last edited by Mohavvalley; 04-03-2018 at 07:43 PM.
#56
VIP Member
VIP Member
for the price of them...I would run arp...that's what I'm doing with mine...went with the bolts instead of the studs...extra insurance never hurts imo
#57
Ok need to figure out windage tray options.
I plan on getting a "offshore" style 8 to 10qt oil pan, is it better to run a oem style windage tray bolted to the main caps or get a pan with a windage tray in it and eliminate the oem style one?
I plan on getting a "offshore" style 8 to 10qt oil pan, is it better to run a oem style windage tray bolted to the main caps or get a pan with a windage tray in it and eliminate the oem style one?
Last edited by Mohavvalley; 04-04-2018 at 06:28 PM.
#60
Charter Member # 55
Charter Member
Stock are 8qt pans and should be fine to 650-700 as long as you have a good oil cooler.
Same pan is used on the 700sci
Genuine Mercury & Mercruiser parts. 845668T PAN ASSY-OIL Genuine OEM Mercury Marine-Mercruiser part
Same pan is used on the 700sci
Genuine Mercury & Mercruiser parts. 845668T PAN ASSY-OIL Genuine OEM Mercury Marine-Mercruiser part