Engine failure data

[Livnpaintball2]

I wanted to start a thread so we can keep track of blown engines and the parts that failed. Please list your bad luck here along with the mods to the car and type/grade of oil when it let you down.

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[SolarFlare]

Seems to me the last 2 we've seen are whipple cars. One oil pump gears, one rod bearing. My questions to these guys are....

1) are you running whipple tunes?
2) has the tune been validated via datalog or dyno time?

I'm not a fan of street tuning/datalogging, let along slap on a canned tune from a blower manufacturer and just go drag race.

 

[dubster99]

Street logged tunes are every bit as accurate as dyno tunes, and generally have better real world driveability due to actual real world conditions, and loads. Dyno tunes are great for extracting every last bit of HP possible, though.

 

[AutoX_GT]

Can't speak for the rest of the manufacturers, but iv'e been on Paxton's canned tune all summer and it runs great without issue, safe and FAST.

 

[Jeff's FRC]

Seems to me the last 2 we've seen are whipple cars. One oil pump gears, one rod bearing. My questions to these guys are....

1) are you running whipple tunes?
2) has the tune been validated via datalog or dyno time?

I'm not a fan of street tuning/datalogging, let along slap on a canned tune from a blower manufacturer and just go drag race.

OPG's and a spun rod bearing were not caused by a bad tune...

 

[SolarFlare]

OPG's and a spun rod bearing were not caused by a bad tune...

Im sure not. I'm just wondering how many people slap on a tune without checking it.

 

[Roh92cp]

Whipple tune here, with stock OPG failure. The extent of the damage was 2 rod bearings spun, the rest were perfect and cam guides and caps showed some wear on 3 caps, but not enough to have them repaired. The OPG failed at 6500rpm in 4th gear, but that was after hard excelleration from 1st and second gear spinning to 7k ish to full traction in third to 7k. Lack of oil pressure was seen at 6k after I heard the warning chime and center dash "low oil pressure". At that point I was at 6500 rpm and just letting off, inthen look at the oil pressure gauge and it was at 0:eyebulge: I coasted to a stop within 5 seconds and shut off the motor.

I blame the OPG failure on possible oil was not completely warmed enough. I only drove 6 miles and engine temp dummy gauge read normal, but as I have learned that dummy gauge is an inferred temp from the ECT and oil pressure sensors. I also think that some stock OPG's may have a defect from there manufacturing process.

I don't think this has anything to do with Whipple or there calibration. Whipple has spent extensive hours of durability testing on there test cars with there calibration, and many here have used there calibration to race on a regular basis. If the calibration was suspect there would be a lot more failures. These new motors in stock form have very little variance in calibration fueling and timing needs when subjected to boost.

 

[Livnpaintball2]

Thanks Roh for sharing your event, this is the type of info I want to gather.

Tune is only relevant if your burning holes in the piston or grenade your pistons from knock.

I had a 135 that spun a bearing and it was due to thinned out oil via fuel injectors so I want to see what issues people had have with this platform.

 

[Roh92cp]

Thanks Roh for sharing your event, this is the type of info I want to gather.

Tune is only relevant if your burning holes in the piston or grenade your pistons from knock.

I had a 135 that spun a bearing and it was due to thinned out oil via fuel injectors so I want to see what issues people had have with this platform.

You welcome, and any other question come up I'll be glad to answer. I'm all for sharing this information here and encourage others as well. Good idea with this thread and I hope more contribute.

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