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Stock vs Headers/E85 (60-130 times)

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PilotGuy

PilotGuy

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Got a good pull in today after figuring out my traction control issues. P1X on E85. Haven’t had it on a dyno but I’d expect 750-800rwhp.

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Blown86GT

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Got a good pull in today after figuring out my traction control issues. P1X on E85. Haven’t had it on a dyno but I’d expect 750-800rwhp.

BE49EEB8-134A-4255-85D8-937B5C3FFF51.png
Same DA I'm assuming? Wow...from your original times to the latest, you shave 5 seconds off! I need FI on my 18!
 
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Same DA I'm assuming? Wow...from your original times to the latest, you shave 5 seconds off! I need FI on my 18!
Yeah, assuming the DA in the Dragy app is accurate it was right under 6k. Definitely a whole different car with FI!
 

Andy13186

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Yeah, assuming the DA in the Dragy app is accurate it was right under 6k. Definitely a whole different car with FI!
I think DA matters less with turbo or centri cars with wastegates as long as you still hit your target boost level. Not really sure about centri's in this regard but if you have a wastegate that bleeds some off normally I think this would be true. And if you plan to stay at your height above sea level you can probably safely use a smaller pulley to counteract the DA compared to someone at sea level.
 

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I doubt 750-800 at that DA. Couple local buddies with paxtons making 850-860 at sea level and about 1500DA are doing 5.70s-5.90. So either there are tricks to this draggy stuff or the timing system in flawed on some units.
 

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I doubt 750-800 at that DA. Couple local buddies with paxtons making 850-860 at sea level and about 1500DA are doing 5.70s-5.90. So either there are tricks to this draggy stuff or the timing system in flawed on some units.
I’m not sure. I’m trying to get it on a dyno, but everyone I’ve called has been backed up. I’m not really too concerned about what it makes to be honest, I’d like to know how much boost it’s making though.
 

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I wish this gadget would show a correction that factors in DA so that we could all compare our numbers. Is there a calculator out there that will do this?
 

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Do not go by the DA of the Dragy. It's extremely accurate with the times it gives but DA has never been correct for me. Just look it up yourself for your current area and day. I'm 830ish with a manual and at 2100Ft elevation and 3000DA I'm 5.7 with my Whipple.
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