Why you dont cheap out on rods on a rebuild.
10-25-2009, 01:33 AM
#22
What confuses the hell out of me is that there are all these people with bent rods, and yet there are 10 times more people running the same kind of power/boost on stock rods for 10's of thousands of miles with no problems.
Did mazda pick-n-choose which cars got shitty rods and which ones got good ones or what? LOL
Did mazda pick-n-choose which cars got shitty rods and which ones got good ones or what? LOL
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10-25-2009, 01:39 AM
#23
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This reminds me of something I read somewhere about R package and SE vehicles got the engines that Mazda deemed the best. I guess the ones that made the most power or were balanced the closest. Is this true? Forget where I saw this.
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10-25-2009, 02:53 AM
#27
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In order for that to be the case, Mazda would have to run every single engine on a dyno. Lamborghini can afford this luxury. Pretty sure that the first time a BP / B6 gets fired up is after it's had a car installed on it.
Last edited by Joe Perez; 10-25-2009 at 08:15 PM. Reason: B6, not B8... Thinking Honda today...
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10-25-2009, 03:09 AM
#29
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Thats kind of what I figured. I wish I could remember where it was I read it. Seems like it was someone quite reputable. Guess they shouldn't be so reputable in that case.
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10-25-2009, 10:05 AM
#32
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What confuses the hell out of me is that there are all these people with bent rods, and yet there are 10 times more people running the same kind of power/boost on stock rods for 10's of thousands of miles with no problems.
Did mazda pick-n-choose which cars got shitty rods and which ones got good ones or what? LOL
Did mazda pick-n-choose which cars got shitty rods and which ones got good ones or what? LOL
and part of the "pick n choose" is the higher compression cars.
What bugs me now is that I'm probably driving my own car around with rods that look like that. eek.
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10-25-2009, 10:15 AM
#33
As long as they don't bend too much or break I guess the car would be acting normal though, right?
I've been arguing with my dad about this whole "bent rods" issue. He REFUSES TO BELIEVE that you could bend a rod and the engine would still be driving and not knocking or blowing up. This is really helping my argument.
I've been arguing with my dad about this whole "bent rods" issue. He REFUSES TO BELIEVE that you could bend a rod and the engine would still be driving and not knocking or blowing up. This is really helping my argument.
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10-25-2009, 10:23 AM
#34
For all four to bend like that and not break you'd have to be right at the threshold of what those rods can take...AND not see any detonation. Since detonation usual finds the weak link (weakest rod of set) and causes catastrophic failure, and det is often more prevalent in one cylinder more than others.
It appears that the motor saw just a little too much power, the rods bent and work hardened...becoming "stronger" (although more brittle) and the motor was happy...if not running as designed for a while. Kind of a steady state failure that allowed the motor to keep running.
If anything this points strongly towards EXCELLENT engine management and det prevention...and suggests a real upper limit on torque capacity for stock rods.
y8s: Did either of previous owners ever dyno it? Any idea on peak torque?
It appears that the motor saw just a little too much power, the rods bent and work hardened...becoming "stronger" (although more brittle) and the motor was happy...if not running as designed for a while. Kind of a steady state failure that allowed the motor to keep running.
If anything this points strongly towards EXCELLENT engine management and det prevention...and suggests a real upper limit on torque capacity for stock rods.
y8s: Did either of previous owners ever dyno it? Any idea on peak torque?
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10-25-2009, 10:24 AM
#35
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When I was a teenagers and in the first year of college I worked in a VW shop in a warehouse next to Norwood's place. The **** that rolls out of his shop is on another level. We always saw **** in there like Bugattis, Ferraris, Callaways, you name...wild ****.
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10-25-2009, 11:41 AM
#37
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Originally Posted by Robbi Laurenson @ m.net
I must be around 225 rwhp at 9 psi, and probably 240+ at 10 psi. That's on an FMII BBB, turbo midpipe and single exhaust with the MoTeC M4 running full sequential, tuned on a WB02 to 0.85 lambda. Timing is FM map from Ken for an '01.
This is probably a low estimate since others are making better power with the same gear. I am adjusting for no dyno tuning.
So far no knock registered on the J&S with water injection. Still going after 12k boosted.
This is probably a low estimate since others are making better power with the same gear. I am adjusting for no dyno tuning.
So far no knock registered on the J&S with water injection. Still going after 12k boosted.
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