Dyno might have read wrong, what about this mid 13's in 1/4 mile?
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05 Champ Car Test Driver
Joined: Jul 2004
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From: Calgary, AB - Canada
Dyno might have read wrong, what about this mid 13's in 1/4 mile?
A picture is worth 1000 words.
Comparison between my best tuned vs. my best untuned. Same PSI (7 PSI)...
Renesis is very very capable... :D Almost 13.6! Just by 1/1000 of a second... I actually consider this a 13.6s
Hey experts, do i have 240 at the wheels? We are in calgary which is about 3600 above sea level. I was told we loose about 8-10% power due to the altittude. Is this true?
Comparison between my best tuned vs. my best untuned. Same PSI (7 PSI)...
Renesis is very very capable... :D Almost 13.6! Just by 1/1000 of a second... I actually consider this a 13.6s
Hey experts, do i have 240 at the wheels? We are in calgary which is about 3600 above sea level. I was told we loose about 8-10% power due to the altittude. Is this true?
Last edited by Lschiavo; Jul 27, 2005 at 02:58 AM.
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From: Phoenix
Originally Posted by Lschiavo
A picture is worth 1000 words.
Comparison between my best tuned vs. my best untuned. Same PSI (7 PSI)...
Renesis is very very capable... :D Almost 13.6! Just by 1/1000 of a second... I actually consider this a 13.6s
Hey experts, do i have 240 at the wheels? We are in calgary which is about 3600 above sea level. I was told we loose about 8-10% power due to the altittude. Is this true?
Comparison between my best tuned vs. my best untuned. Same PSI (7 PSI)...
Renesis is very very capable... :D Almost 13.6! Just by 1/1000 of a second... I actually consider this a 13.6s
Hey experts, do i have 240 at the wheels? We are in calgary which is about 3600 above sea level. I was told we loose about 8-10% power due to the altittude. Is this true?
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Originally Posted by SSR Engineering
Only N/A cars lose power due to altitude, your car at 8PSI will make the same amount of power a mile high as it will at sea level. Reason being is you're creating your own atmospheric pressure by adding boost.
Thread Starter
05 Champ Car Test Driver
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From: Calgary, AB - Canada
Originally Posted by SSR Engineering
Only N/A cars lose power due to altitude, your car at 8PSI will make the same amount of power a mile high as it will at sea level. Reason being is you're creating your own atmospheric pressure by adding boost.
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05 Champ Car Test Driver
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From: Calgary, AB - Canada
Originally Posted by khtm
Dude, I want to come out next time you're doing a run and watch! :D I guess you can't tell me where that is though...in case cops are watching this forum 
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05 Champ Car Test Driver
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From: Calgary, AB - Canada
Originally Posted by DARKMAZ8
Wow!!!
what rpm are you launching at? Is there any wheel hop? Looks like you would easily be in the high 12z at sea level and w/slicks........btw Do you have any pics of your car?
what rpm are you launching at? Is there any wheel hop? Looks like you would easily be in the high 12z at sea level and w/slicks........btw Do you have any pics of your car?
Originally Posted by Lschiavo
I am losing a lot of traction. Launching only at 4k. If launch higher all i get is massive wheelspin.
launching at only 4k i am sooooo jealous.
beers
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05 Champ Car Test Driver
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From: Calgary, AB - Canada
Originally Posted by canadian_8
louis, dont forget you promised me i could drive your car :D
seriously though, i just want to sit in it!
seriously though, i just want to sit in it!
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05 Champ Car Test Driver
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From: Calgary, AB - Canada
Originally Posted by FONZIE
This may be a good time to post your map for people to use and compare. Might be a good starting point for people that are tuning.....
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05 Champ Car Test Driver
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From: Calgary, AB - Canada
Originally Posted by IkeWRX
Ever plan on taking it to a track to get real times?
Whenever I have some time, however I think these times are pretty accurate since i did a 15.3 in gtech when i was stock and I got a 15.2 in the dragstrip.
Still doubtful? Here is a hint...
Last edited by Lschiavo; Jul 27, 2005 at 12:24 PM.
Thread Starter
05 Champ Car Test Driver
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From: Calgary, AB - Canada
Originally Posted by khtm
Dude, I want to come out next time you're doing a run and watch! :D I guess you can't tell me where that is though...in case cops are watching this forum
KHTM, U have your messages mailbox full, clean it up
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From: Houston
Luis while you do lose some power with altitude, you don't lose nearly as much as a naturally aspirated car. As you pointed out, although the turbo can compensate and provide you with the amount of boost you desire, it has to spin faster to do it. This means more heat and lower efficiency for the boost you are running vs sea level. You still do lose a few percent to sea level though. SAE correction is setup to correct nontubo cars, not forced induction cars. It is a huge mistake for correction to be used on turbo cars so you should go by a noncorrected. Either way you won't get the exact same power numbers you would at sea level uncorrected but then again when was the last time you saw 2 different dynos anywhere give the same numbers? Just correct for temperature only, not altitude. Your uncorrected numbers will come back a little low but your corrected numbers will come back a little high. The key is knowing which one is closer to the truth. That would be the uncorrected sea level based one.
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Originally Posted by rotarygod
Luis while you do lose some power with altitude, you don't lose nearly as much as a naturally aspirated car. As you pointed out, although the turbo can compensate and provide you with the amount of boost you desire, it has to spin faster to do it. This means more heat and lower efficiency for the boost you are running vs sea level. You still do lose a few percent to sea level though. SAE correction is setup to correct nontubo cars, not forced induction cars. It is a huge mistake for correction to be used on turbo cars so you should go by a noncorrected. Either way you won't get the exact same power numbers you would at sea level uncorrected but then again when was the last time you saw 2 different dynos anywhere give the same numbers? Just correct for temperature only, not altitude. Your uncorrected numbers will come back a little low but your corrected numbers will come back a little high. The key is knowing which one is closer to the truth. That would be the uncorrected sea level based one.
Exactly, they told me correction factor was around 8% that day. I think we might put it only at 3-4% to compensate for the efficiency and heat due to the need of the turbo to spin faster. Air is very thin here, no much oxigen, i can feel it when running or doing exercises. However if we take the whole 8% out I would still land with a nice 227 WHP on a mustang which might mean 250 in adynojet. Not bad i guess. Thanks for ur input