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Old Sep 18, 2005 | 11:39 PM
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93 vs. 94 octane w/Dynoflash

Al or anyone who know,

I plan on sending my ECU in to get flashed soon but i am wondering what i should get the flash for, 93 or 94 octane. I have both available to me but am worried about getting a flash for 94 octane and maybe have issues if i have to put 93 in. Is there even a difference between 93 or 94 in WHP? If there is, would a 93 flash w/94 in the tank yeild the same results as a 94 flash with 94 in the tank? Bottom line is 94 is more expensive and not available at evey gas station so 93 is going to have to go in the tank once in a while. Which should i get the ECU programed for? For all i know there might not be a difference in a flash for 93 and 94 octane available, everyone gets the same flash if you run 93 or 94. Thanks
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Old Sep 19, 2005 | 12:14 AM
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From: 2003 Evo VIII - Silver
Originally Posted by 05evoGSR
Al or anyone who know,

I plan on sending my ECU in to get flashed soon but i am wondering what i should get the flash for, 93 or 94 octane. I have both available to me but am worried about getting a flash for 94 octane and maybe have issues if i have to put 93 in. Is there even a difference between 93 or 94 in WHP? If there is, would a 93 flash w/94 in the tank yeild the same results as a 94 flash with 94 in the tank? Bottom line is 94 is more expensive and not available at evey gas station so 93 is going to have to go in the tank once in a while. Which should i get the ECU programed for? For all i know there might not be a difference in a flash for 93 and 94 octane available, everyone gets the same flash if you run 93 or 94. Thanks
In your case a 93 octane tune is the way to go. We are talking about 5 - 8 whp more with the 94 map - not even something you can feel
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Old Sep 19, 2005 | 04:26 PM
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hey al, how come your profile say "Street Driven !" yet everytime I see you at the track or spring valley you show up with the car in a trailer?
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Old Sep 19, 2005 | 04:31 PM
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Probably because it is "street legal" and is often street driven. No point of him putting all the miles that he travels on the car, but still a good question.
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Old Sep 19, 2005 | 04:41 PM
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To me, street legal and street driven are two totally different things. John Shepherd's DSM is street legal, but it is not street driven.

If it's not worth the risk of Al driving it to all the events, then is it really a street car?
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Old Sep 19, 2005 | 09:01 PM
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Originally Posted by jon22
To me, street legal and street driven are two totally different things. John Shepherd's DSM is street legal, but it is not street driven.

If it's not worth the risk of Al driving it to all the events, then is it really a street car?
Not trying to flame you, but I don't think Shep's car has a catalytic converter on it and it is far from street legal, ie no other emissions equipment, etc. He was running DOT street tires for awhile but not anymore. Are you maybe referring to it running in the street tire class at one time?
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Old Sep 19, 2005 | 10:13 PM
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No, I am referring to it being registered in the state of Ohio. How many cars without cats are running around this country with valid registration and inspection? Tons. Doesn't mean it's streetable or driven on the street. Definitely not in Shep's case since it runs on methanol and has no alternator.
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Old Sep 20, 2005 | 05:35 AM
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From: WI
Originally Posted by jon22
No, I am referring to it being registered in the state of Ohio. How many cars without cats are running around this country with valid registration and inspection? Tons. Doesn't mean it's streetable or driven on the street. Definitely not in Shep's case since it runs on methanol and has no alternator.
Thanks for the clarification. I understand what you mean now as to me street legal means that it complies with all laws including emissions not what you can get away with and not get caught. For example, Al's car is street driven but not completely street legal. There are a ton of cars out there that are registered but that does not make them street legal, ie Shep, Al, my old Eclipse. It really isn't to hard to register a car as long as it has a valid VIN in many of the midwestern states. I remember Eric from AMS saying he had his car registered in WI as he couldn't get it registered in IL last year at the shootout. It sounds like in some states it is harder to sneak it under the radar.
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Old Sep 20, 2005 | 08:27 AM
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Originally Posted by jon22
hey al, how come your profile say "Street Driven !" yet everytime I see you at the track or spring valley you show up with the car in a trailer?

You see him at SV with a trailer when hes comming back from an event at e-town. Many of our street driven cars are trailered to the track. My car isnt even that fast yet i flat bed it to the track just incase.



ERIK
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Old Sep 20, 2005 | 08:53 AM
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From: 2003 Evo VIII - Silver
A cheap $1500 car trailer gives you and edge at races as you can push the car further and harder knowing that if it breaks its not goling to leave you with a giant tow bill - also its nice to have all your spares and tools in your towing rig

My Evo is very streetable and I drive it on the road all the time - (Just not on long trips as the VP import gas is $20 a gallon)
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Old Sep 20, 2005 | 09:20 AM
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Originally Posted by 05evoGSR
Al or anyone who know,

I plan on sending my ECU in to get flashed soon but i am wondering what i should get the flash for, 93 or 94 octane. I have both available to me but am worried about getting a flash for 94 octane and maybe have issues if i have to put 93 in. Is there even a difference between 93 or 94 in WHP? If there is, would a 93 flash w/94 in the tank yeild the same results as a 94 flash with 94 in the tank? Bottom line is 94 is more expensive and not available at evey gas station so 93 is going to have to go in the tank once in a while. Which should i get the ECU programed for? For all i know there might not be a difference in a flash for 93 and 94 octane available, everyone gets the same flash if you run 93 or 94. Thanks
I'm not a tuner, but I would recommend flashed for 93. Yes 94 might be readily available to you locally, but drive somewhere else and youre stuck with 93, heaven forbid 91. I will be tuning mine with 93 and alky in the upcoming months, but i'm also going to have a safe map for just 93. better be safe than sorry, besides a safe tune may save you a couple of grand. my $.02
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Old Sep 20, 2005 | 09:22 AM
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Originally Posted by 05evoGSR
Al or anyone who know,

I plan on sending my ECU in to get flashed soon but i am wondering what i should get the flash for, 93 or 94 octane. I have both available to me but am worried about getting a flash for 94 octane and maybe have issues if i have to put 93 in. Is there even a difference between 93 or 94 in WHP? If there is, would a 93 flash w/94 in the tank yeild the same results as a 94 flash with 94 in the tank? Bottom line is 94 is more expensive and not available at evey gas station so 93 is going to have to go in the tank once in a while. Which should i get the ECU programed for? For all i know there might not be a difference in a flash for 93 and 94 octane available, everyone gets the same flash if you run 93 or 94. Thanks
Definitely get it tuned for 93 octane. Then, if you happen to put in some 94, youll get some extra protection against knock! Getting tuned on 94 is a bad idea because its hard to get everywhere unless your right by a Sunoco at all times.
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Old Sep 20, 2005 | 10:19 AM
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Originally Posted by DynoFlash
A cheap $1500 car trailer gives you and edge at races as you can push the car further and harder knowing that if it breaks its not goling to leave you with a giant tow bill - also its nice to have all your spares and tools in your towing rig

My Evo is very streetable and I drive it on the road all the time - (Just not on long trips as the VP import gas is $20 a gallon)
To me, a car that is "Street Driven" is reliable enough that you can push it hard at the track without having to worry about it breaking. When you trailer the car everywhere and put gas that costs $20 a gallon in it, it really makes it sound like a race car, not a street car.
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Old Sep 21, 2005 | 06:36 PM
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thanks for the answers guys, the only other question is can the stock rev limiter on my 05 be raised to like 6k with a flash? If so that would be great. thanks
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Old Sep 21, 2005 | 07:25 PM
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Originally Posted by jon22
To me, a car that is "Street Driven" is reliable enough that you can push it hard at the track without having to worry about it breaking. When you trailer the car everywhere and put gas that costs $20 a gallon in it, it really makes it sound like a race car, not a street car.
jon22, honestly who cares, your way off topic buddy. Start a new thread or try to stay on topic with this one.
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