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Old 11-14-2009, 10:19 AM   #29
JANNETTYRACING
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Quote:
Originally Posted by mtcwby View Post
Just plain 91 octane pump gas, the highest available in this high altitude.
Just an FYI, 91 Octane At High Altitude acts like 95 Octane at Sea Level and you may have to take some timing out or put the bigger SC pulley on for Sea Level on 93 Octane.

I tune a lot of Turbo snowmobiles that run at High altitudes so we see a lot of guys who will blow up motors when they drop down to lower elevations without re tuning.

Very Impressive results, just wondering if there is a correction factor on the dyno for elevation?

Go Vortech!!
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Old 11-14-2009, 12:02 PM   #30
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Very Impressive results, just wondering if there is a correction factor on the dyno for elevation?

Go Vortech!![/QUOTE]

We are at approximately 4000 ft, and the dyno(dynojet), uses a typical 1.11 to 1.13 correction factor. ( FWIW )
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Old 11-14-2009, 12:06 PM   #31
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Nice set up and good numbers, So that was you with the big hat at SEMA. LOL
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Old 11-14-2009, 12:25 PM   #32
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We set the timing for the lower altitude. We run a lot of cars at the Texas Mile and road courses in Nevada. So we are experienced at tuning at sea level.

Also we made this power with less than 15 degrees of timing in it. This is a very conservative tune. We would rather error on the safe side than have max power.

The correction factor on the Dynojet was 1.28 SAE. We have found that the Dynojets are within 1% when we run at sea level.

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Old 11-14-2009, 12:30 PM   #33
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Also this was with a all stock internal LS3. Only other add ons from the Vortech was ARH headers and Magnaflow exhaust.


We will have package deals ready this Monday and I will post prices up.
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Old 11-14-2009, 01:07 PM   #34
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93 here

Quote:
Originally Posted by mtcwby View Post
Just plain 91 octane pump gas, the highest available in this high altitude.
They have 93 over in Hygiene if you really need it.
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Old 11-14-2009, 02:01 PM   #35
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Thumbs up

Very impressive. Nice numbers.
Congrats on the car and good work RMCR!!!
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Old 11-14-2009, 02:32 PM   #36
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Quote:
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We set the timing for the lower altitude. We run a lot of cars at the Texas Mile and road courses in Nevada. So we are experienced at tuning at sea level.

Also we made this power with less than 15 degrees of timing in it. This is a very conservative tune. We would rather error on the safe side than have max power.

The correction factor on the Dynojet was 1.28 SAE. We have found that the Dynojets are within 1% when we run at sea level.

Mike
Nice Job and thankyou, I will be doing one here at sea level, It will be great to compare numbers.

Ted.
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Old 11-14-2009, 03:06 PM   #37
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Ya it will be interesting to see the numbers. Post them up when you get them. Also feel free to PM me since Vortech does not quite have the manual done. If you have any problems.

Mike
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Old 11-14-2009, 05:56 PM   #38
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Man i like to do this but in AZ not that good as we get as hot as 126 in the summer, But it do;s look good in the car.
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Old 11-14-2009, 07:18 PM   #39
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Quote:
Originally Posted by Octaneman View Post
Very Impressive results, just wondering if there is a correction factor on the dyno for elevation?

Go Vortech!!


Colorado Springs is over 6000 ft. and the correction factor on these
pulls was 1.28

Jannetty, your dyno probably has a correction factor too, at least it should.
Dynojet always has a correction factor. That's why you can go to two different Dynojet dynos and almost always get the same numbers.
We did a very conservative tune in order to be safe at sea level also. Otherwise the HP numbers would have been closer to 650.
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Old 11-14-2009, 07:21 PM   #40
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Quote:
Originally Posted by tom692010 View Post
They have 93 over in Hygiene if you really need it.
Don't need 93 octane at this altitude. You'd be wasting your money.
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Old 11-15-2009, 01:01 AM   #41
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I was just telling you where to get it if you wanted some. Lets not get into a conversation about wasting money.
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Old 11-15-2009, 03:15 AM   #42
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Quote:
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why the air filter on the BOV?
The filter is on the Bypass Valve to keep debris and dirt from getting into the diaphram when it is closed, otherwise the seat might get damaged. Also I think it kind of acts as a muffler to make it barely noticeable.
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