71mm

RSK

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12.20's I believe, might be 12.10's I know low 12's are all that is there even with a bigger turbo.
 

travisH3

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how are ya'll lauching without spinning? i ran a 12.8 @ 105mph last fall with h&s, afe intake and 5" exhaust. still with EGR coolers. now im running no limit intake, flo pro egr delete and 3" cold side pipe. back before i could only leave at 10psi on my stock wheels. anything over 10psi it spins and hops. im a reg cab long bed 4x4 so im lighter than most trucks but i know there is more out of this truck stock if i could just launch it harder. im looking into the 71mm or something like that when i lift the cab.
 

Breaking Habits

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how are ya'll lauching without spinning? i ran a 12.8 @ 105mph last fall with h&s, afe intake and 5" exhaust. still with EGR coolers. now im running no limit intake, flo pro egr delete and 3" cold side pipe. back before i could only leave at 10psi on my stock wheels. anything over 10psi it spins and hops. im a reg cab long bed 4x4 so im lighter than most trucks but i know there is more out of this truck stock if i could just launch it harder. im looking into the 71mm or something like that when i lift the cab.

Air pressure is everything. I used to neutral drop my 6 speed regular cab in 4 Lo 4th gear and with proper tire pressure and my One Up Offroad Adjustable Link Arms it was pretty damn smooth.

Definitely something to consider:naughty:
 

smokinstroker

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Your going to have a struggle getting that low on stock fuel with a crew cab truck. Nitrous can get you into the low 12s.

If you want low 12s and no gas you need to add fuel.
 

bft blue oval boys

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smokinstroker

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bft blue oval boys

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There are also very few accounts of people breaking 12.3 on stock fuel with a 71-71mm and no nitrous.

I was also basing it off elevation in Maryland which is ~3,000ft.
Ahhh gotcha. Speaking of Maryland, what is the elevation at MIR?

Sent from a Cummins plant, driving a Powerstroke, with a TDI on the side!
 

getstroked27

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i tested out launching at 10-14 psi on 37" toyos with 48 psi front 40 rear and had zero traction loss. that was on the old turbo that i couldnt spool. i did the same on the street last night at 18 psi and it was perfect. could go a little higher if i dare to threaten my driveshaft like that....
 

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