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View Full Version : What 1/4 mile ET with Eaton swap or complete cobra motor swap



JBeezy
04-12-2015, 10:39 AM
Just curious of what one should expect to run with one of the swaps mentioned above?

sailsmen
04-12-2015, 12:54 PM
Check Glenn, Trilogy, Time Slips.

Weathers adds up to .75 seconds.

chief455
04-12-2015, 01:03 PM
Just curious of what one should expect to run with one of the swaps mentioned above?
my guess...
SWAP: higher compression than stock Cobra, but detuned to not detonate.
might feel more frisky light to light with a heavy auto
swap power tops out at ~425rwhp = low 13's? high 12's?
forged internals (Cobra) could boost higher, maybe 575 cozy rwhp = in the 12's or something's wrong. $$

RubberCtyRauder
04-12-2015, 01:07 PM
Although I have not run mine..Jeff at MO's said as long as there is traction, my car should be in the low, low 12's any day of the week. 575 RWHP..low 11's..

chief455
04-12-2015, 01:10 PM
Although I have not run mine..Jeff at MO's said as long as there is traction, my car should be in the low, low 12's any day of the week. 575 RWHP..low 11's..

:cool: I wanted to under promise and over deliver
your numbers are more likely closer

RubberCtyRauder
04-12-2015, 01:29 PM
I just read in another thread..member has 600 HP, 600 TQ and runs a 10.35.. it is better to advise less and beat the estimate...

sailsmen
04-12-2015, 01:35 PM
If it's a Marauder he must also be using Nitrous or he's got more HP.

JBeezy
04-12-2015, 03:25 PM
Although I have not run mine..Jeff at MO's said as long as there is traction, my car should be in the low, low 12's any day of the week. 575 RWHP..low 11's..
What are you making to the tires now

RubberCtyRauder
04-12-2015, 03:47 PM
455RWHP....

justbob
04-12-2015, 03:59 PM
Trilogy and stock bottom end I ran consistent 12.1's @111


Builder Of Badassery

breeze
04-12-2015, 07:08 PM
How much power are you putting down for starters

RacerX
04-12-2015, 07:57 PM
Most with a Ported Eaton is in the 520rwhp range @ 18psi. Similar compression ratio as the 03/04 Cobras. Consistent 11.7s with sticky shoes, 12 @ 118.45 with Nitto 555 street tires. High IAT temps though. Need to upgrade heat exchanger. Stock cobra vs. AFCO dual pass with fans is 30deg cooler.