Need advice please - motor blown after dyno, has Whipple.

[Cambur]

The real crime is $4700 labor for an engine change.

I thought the same. Anyone know someone in AZ that is more fair?

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[libtrucker]

Just my 2 cents, speaking of fuel (I'm in the fuel business). Where you get your fuel shouldn't be an issue. It all comes from the same tank. So Costco can have the same fuel as Exxon or Shell or whoever, it is just considered "unbranded". The difference is the additive that is blended in at the pump (the pump at the terminal where the fuel is loaded, not at the gas station). Some "brands" use additive, some don't. And I have personally delivered many loads to Costco that were loaded on a Gulf account (Connecticut) or a Mobil Unbranded account.

But 93 octane, is 93 octane. It possibly will have detergents in it, but the octane rating is the same. And the science is still out if those detergents/additives make any difference. But I can assure you that any fuel purchased is perfectly fine, as long as it is the proper octane rating. (eg. don't put 87 in a car that calls for 93)

Sidenote: the QUALITY of fuel can vary BIG TIME. Stay away from the old shitty looking mom and pop fuel stations. They can have water in the tank, old gas, etc. The "cleanest" or "freshest" fuel, will probably be from a high volume store, and Costco/Sams/BJ's are very high volume. This is all generally speaking though, as any gas station could have water in the tanks. The delivery driver can fuck up and put the wrong product in the tank, etc. Accidents do happen.

Also, someone mentioned the octane has to be within 2 points of advertised. It is much tighter than that. If I remember correctly it is more like .2 points, for octane and ethanol rating.

So 87 octane, must be at least 86.8. And 10% ethanol must be between 9.8-10.2% ethanol. If the fuel is off spec when loaded (into the tanker truck) the driver gets a "broken load" bill of lading, and the fuel will not be delivered.

Hate to burst everyone's bubble that thinks they are getting some special gas because they bought it at Mobil (or wherever). The truth is, its the same shit, with some unscientifically proven additive that is not proven to do anything anyways....

 

[Bikeman315]

I have heard quite a few stories about Costco gas. Not good ones either. I don't understand the concept of using budget gas in a high performance car. The gas may be great, but I suspect there is a storage and/or delivery moisture issue.

I've read some of these stories also but most are pure internet fiction. You do know that the same trucks that deliver to Costco also deliver to many other stations. Costco does not own the supply system. I already said it was possible to get a bad load but that would not be Costco's fault. It also has no bearing on the quality of their gas.

I have had family in the business for decades and I can tell you for a fact that there is a far better chance of contamination from the stations own tanks than the fuel trucks. Costco turns their tanks multiple times a day so that would not be an issue.

 

[Bikeman315]

The truth is, its the same shit, with some unscientifically proven additive that is not proven to do anything anyways....

Shhhhhh, don't go telling people that.

 

[IPOGT]

I've read some of these stories also but most are pure internet fiction. You do know that the same trucks that deliver to Costco also deliver to many other stations. Costco does not own the supply system. I already said it was possible to get a bad load but that would not be Costco's fault. It also has no bearing on the quality of their gas.

I have had family in the business for decades and I can tell you for a fact that there is a far better chance of contamination from the stations own tanks than the fuel trucks. Costco turns their tanks multiple times a day so that would not be an issue.

Based on the stories, I'd probably not roll the dice.

 

[K4fxd]

I have a buddy who delivers gas to stations. Unless the tanker truck has a brand on it the fuel comes from the same place. The only difference is the additive package added.

So say it is going to shell, the tanker pulls up to the shell add pump pumps 500 gallons then heads to the gas pump, loads 9k gallons and heads to the stations.

Costco has their own add pack that is kept at each location so the delivery guy skips the add pack pump.

There are 2 grades. Here in Ky it is 87 and 93, the mid grade is a blend of both.

In Ky the pumps are labled "MIN octane rating" So your 93 is at least 93.

 

[libtrucker]

I've read some of these stories also but most are pure internet fiction. You do know that the same trucks that deliver to Costco also deliver to many other stations. Costco does not own the supply system. I already said it was possible to get a bad load but that would not be Costco's fault. It also has no bearing on the quality of their gas.

I have had family in the business for decades and I can tell you for a fact that there is a far better chance of contamination from the stations own tanks than the fuel trucks. Costco turns their tanks multiple times a day so that would not be an issue.

I have personally hauled a load of STRAIT FUCKING SEAWATER out of a terminal in New Haven, CT before, and delivered it to a gas station, before anyone realized what had happened

 

[K4fxd]

I thought the same. Anyone know someone in AZ that is more fair?

It is 12 to 16 hours to change an engine, most shops around here , Ky, charge 100 per hour.

 

[331GT]

If you were going to the dyno what would you put in?

I would put what it is tuned for, but 93 at a minimum. or 91 if that's all that is available, but in chicagoland 93 is everywhere. if it were stock, id still put 93 in. if i were running my flex tune, id put e85.

 

[331GT]

Just my 2 cents, speaking of fuel (I'm in the fuel business). Where you get your fuel shouldn't be an issue. It all comes from the same tank. So Costco can have the same fuel as Exxon or Shell or whoever, it is just considered "unbranded". The difference is the additive that is blended in at the pump (the pump at the terminal where the fuel is loaded, not at the gas station). Some "brands" use additive, some don't. And I have personally delivered many loads to Costco that were loaded on a Gulf account (Connecticut) or a Mobil Unbranded account.

But 93 octane, is 93 octane. It possibly will have detergents in it, but the octane rating is the same. And the science is still out if those detergents/additives make any difference. But I can assure you that any fuel purchased is perfectly fine, as long as it is the proper octane rating. (eg. don't put 87 in a car that calls for 93)

Sidenote: the QUALITY of fuel can vary BIG TIME. Stay away from the old shitty looking mom and pop fuel stations. They can have water in the tank, old gas, etc. The "cleanest" or "freshest" fuel, will probably be from a high volume store, and Costco/Sams/BJ's are very high volume. This is all generally speaking though, as any gas station could have water in the tanks. The delivery driver can fuck up and put the wrong product in the tank, etc. Accidents do happen.

Also, someone mentioned the octane has to be within 2 points of advertised. It is much tighter than that. If I remember correctly it is more like .2 points, for octane and ethanol rating.

So 87 octane, must be at least 86.8. And 10% ethanol must be between 9.8-10.2% ethanol. If the fuel is off spec when loaded (into the tanker truck) the driver gets a "broken load" bill of lading, and the fuel will not be delivered.

Hate to burst everyone's bubble that thinks they are getting some special gas because they bought it at Mobil (or wherever). The truth is, its the same shit, with some unscientifically proven additive that is not proven to do anything anyways....

this is exactly what my understanding has been thus far. only person i know of that burned up a piston that was determined to likely (not confirmed, just a good chance) have been from bad gas bought gas at a middle of nowhere station that was likely low volume.

 

[331GT]

Which is foolish to use for a dyno run. Even 93 is pushing it IMO. The tuner should have asked and then charged you for a bottle of boostane.

why would you run boostane just for a dyno for a street car? not being a dick but curious. if you're going to be running 93 or 91 on the street all the time, and always filling up with that, why run any different on the dyno. run on the dyno what you're going to run on the street. even if it means settling for lower power. better that than to tune too aggressively and then go burn up your engine on the street.

 

[Schwerin]

It actually sounds like the previous owner may have had the kit installed, ran to light oil and maybe not proper gas, and soon as there was a light tap/knock sold the car off.

 

[Cambur]

It is 12 to 16 hours to change an engine, most shops around here , Ky, charge 100 per hour.

what about needing to swap the superpcharger, heads, etc. We are only looking at getting a short block. Around here it seems $125ish is the going rate and they are saying it is something like 37 hours of labor.

 

[CJJon]

why would you run boostane just for a dyno for a street car? not being a dick but curious. if you're going to be running 93 or 91 on the street all the time, and always filling up with that, why run any different on the dyno. run on the dyno what you're going to run on the street. even if it means settling for lower power. better that than to tune too aggressively and then go burn up your engine on the street.

Because I don't run on the street like I do on a dyno. Because a tank of bad gas will kill the motor. Because that would be one thing to easily eliminate one potential source of trouble. Because the car is supercharged. Because the car was bought used and has an unknown tune. Because I don't trust dyno monkeys I don't really know. Because 91 octane sucks in general for a blown car. Because boostane is cheaper than a new motor.

 

[CJJon]

what about needing to swap the superpcharger, heads, etc. We are only looking at getting a short block. Around here it seems $125ish is the going rate and they are saying it is something like 37 hours of labor.

Depends on who is doing the job. Have they done very many Whipple installs? You might be paying them to learn on your car. Ask how they determined the labor for the whipple.

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