The 6cyl SHOs have less than 200 HP!? Wow! Are they still faster than the Duratec?
V6 Sho Rod Bearings...
Well, this weekend was interesting. Ran 190hp to the wheels on my 95 ATX on the dyno, but also managed to spin a rod bearing (or finally get to the point where someone heard the existing spun bearings). Cylinder 6 was spun, 3 & 4 were destroyed, serious burning & copper chunking / flaking. 1 was in the same condition as 6, just not spun, and 2 & 5 were perfect. I'm on borrowed time, hoping the replacement bearings will seat well & get me some extra life out of the engine.
Oh, and my supercharged 91 SHO made 419hp to the wheels the same day too.
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Oh, and my supercharged 91 SHO made 419hp to the wheels the same day too.
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Dude, did you read the whole thread?
Rod bearings on the SHO seem to wear about twice as fast as the main bearings. I spun 1 rod bearing (#6). #3 & #4 were in worse condition visually (severe burn marks with copper flakes / chunks removed), with the tangs flattened out, but hadn't spun under each other yet. #1 looked visually the same as #6 (flat tangs, some burn marks, etc.), but hadn't spun yet. #2 & #5 looked like normal wear, some copper showing, tangs in good shape.
I did pull 1 main bearing Bob, and it was in good shape, no copper, no burn marks, etc. For the cost of the parts, yeah, I'd do it. It's about $50 for the bearings, and figure another $50 for the RTV, front & rear oil pan seals, and the oil pump mounting kit (to get the oil pump pickup tube gasket). On your MTX, and you being the UberMechanic, figure 4 hours start to finish. On the ATX, I had a bummer of a time with the O2's & Y-pipe drop & reinstall.
The driveline losses for the MTX vs ATX SHOs are different, and the % loss is an arguable point. I like to use 15-17% for the MTX, 22-25% for the ATX.
At 22% loss, my 95's making about 244hp at the crank. At 25% losses, it's 254hp at the crank. So, given the simple bolt-ons for the ATX & the 60k I'd done recently, I'm happy to pick up the 25-35hp. Power mods, the car ran with a Ford 80mm / LPM that was new to the car for the dyno. Baseline run, I was running a C&L 73mm. I have the UDPs and a Borla Cat-Back system. My previous runs with the car, I ran 177hp with the stock setup, 174hp with the Superchip. Yeah, those numbers are correct.
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I ran something like 184 with the Borla & the C&L, and crept up to 190 with the Ford 80 / LPM.
On the 91, 419hp to the wheels: about 494hp at the crank, 15% losses; 505hp at the crank at 17% losses. (insert big smile here)
I did pull 1 main bearing Bob, and it was in good shape, no copper, no burn marks, etc. For the cost of the parts, yeah, I'd do it. It's about $50 for the bearings, and figure another $50 for the RTV, front & rear oil pan seals, and the oil pump mounting kit (to get the oil pump pickup tube gasket). On your MTX, and you being the UberMechanic, figure 4 hours start to finish. On the ATX, I had a bummer of a time with the O2's & Y-pipe drop & reinstall.
The driveline losses for the MTX vs ATX SHOs are different, and the % loss is an arguable point. I like to use 15-17% for the MTX, 22-25% for the ATX.
At 22% loss, my 95's making about 244hp at the crank. At 25% losses, it's 254hp at the crank. So, given the simple bolt-ons for the ATX & the 60k I'd done recently, I'm happy to pick up the 25-35hp. Power mods, the car ran with a Ford 80mm / LPM that was new to the car for the dyno. Baseline run, I was running a C&L 73mm. I have the UDPs and a Borla Cat-Back system. My previous runs with the car, I ran 177hp with the stock setup, 174hp with the Superchip. Yeah, those numbers are correct.
I ran something like 184 with the Borla & the C&L, and crept up to 190 with the Ford 80 / LPM.
On the 91, 419hp to the wheels: about 494hp at the crank, 15% losses; 505hp at the crank at 17% losses. (insert big smile here)
4
G
Uh, I think it is you that's the UberMechanic!
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