llxkevinxll
10+ Year Contributor
- 536
- 271
- Jan 29, 2012
-
Milwaukee,
Wisconsin
Hello all,
I have noticed my car is consuming coolant since switching to the Hx35 / E85 setup. Others have mentioned they see a spray from under the passenger side during a pull, my coolant overflow is on the passenger side of the car. Initially I assumed it was a head gasket issue. This past winter I swapped to an HKS hg and inspected the block and head for cracks or damage, no issues. Even the old MLS gasket looked fine. I am still consuming coolant, though it appears to be at a lower rate than before. I am using standard ARP studs torqued to ARPs specification. The issue appears to be more prevalent when running E in the tank. Peak timing is 15 on E compared to 5 on pump 93. This motor compression tests in the 210-220 per cylinder range. The holset is being run at roughly 32 psi peak. My assumption is the new cylinder pressure maximum on the E85 tune is lifting the head. From all of your experiences, are the L19s a worthy upgrade? Did you notice real clamping differences? My car only made 448whp on a mustang dyno which seems to be below the normal level people recommend the L19s but the compression on this motor is relatively high. The 6 bolt L19s are not inexpensive so before making a purchase decision I was hoping to see what others had to say.
Thanks for the help,
Kevin
I have noticed my car is consuming coolant since switching to the Hx35 / E85 setup. Others have mentioned they see a spray from under the passenger side during a pull, my coolant overflow is on the passenger side of the car. Initially I assumed it was a head gasket issue. This past winter I swapped to an HKS hg and inspected the block and head for cracks or damage, no issues. Even the old MLS gasket looked fine. I am still consuming coolant, though it appears to be at a lower rate than before. I am using standard ARP studs torqued to ARPs specification. The issue appears to be more prevalent when running E in the tank. Peak timing is 15 on E compared to 5 on pump 93. This motor compression tests in the 210-220 per cylinder range. The holset is being run at roughly 32 psi peak. My assumption is the new cylinder pressure maximum on the E85 tune is lifting the head. From all of your experiences, are the L19s a worthy upgrade? Did you notice real clamping differences? My car only made 448whp on a mustang dyno which seems to be below the normal level people recommend the L19s but the compression on this motor is relatively high. The 6 bolt L19s are not inexpensive so before making a purchase decision I was hoping to see what others had to say.
Thanks for the help,
Kevin