03 Cobra baseline Dyno

mebetter

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I just got my cobra dyno'd it's stock other than k&n intake and jba mufflers. It put down the following untuned. :eek:
stockuntuneddyno_zps9463bf80.jpg


I was expecting 360-370 rwhp but I'll take it. :rockon: :dancenana:

My old 05 gto with shorty headers, cai, full exhaust, ported intake, and tune made 373 rwhp on the same dyno.
 
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mebetter

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Ported blower, 2.76 pulley, and tune are already on order! Gotta step my game up with all these stock 5.0's running around going 10's on street tires :)
 

itSSlow98

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Is that running on the lean side from 3500 to 4750? Looks like 13.6-14:1.

Its running stupidly lean throughout the entire rpm range. I would just hope the wideband is not accurate or you better not go more then 1/2 throttle until you get a tune. Boosted motors shouldnt see leaner then 11.5-11.8
 
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mebetter

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Good eye guys! It was running 13.0 untuned for most of the run which is way too lean. I then had it detuned to a safer a/f ratio and it made 410 rwhp and 386 rwtq.
 

ctgreddy

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that's also std numbers, pretty much all dyno's use sae corrections which would also make it lower, prolly under 400whp. I wonder why it's so lean with just an intake, i wouldn't assume it would lean it out that much.
 

mebetter

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I've always dyno'd my gto there and it put down average number 335 stock and 370 with full exhaust, tune, and ported intake. For the gto I always thought the numbers were a little low. Maybe the dyno just likes Fords?:shrug: Regardless the car certainly runs harder than the GTO so i'll take it either way :rockon:
 

Brutal Metal

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the stock flash is pretty fat up top with normal timing, it's odd to be that lean with the
K&N intake? Nice #'s OP just get a good tune and buy an in car wideband gauge...
I might still have a new in box AEM at the shop I'll check if interested..
 

Silver2003Cobra

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I think you should take it to another dyno...that seems quite a bit on the high side

Not really.. 100% stock my 03 Cobra made 372 hp.. Intake and exhaust really wake these cars up. Look what Hot Rod TV got for power gains on the Terminator they did a while back.

Sent from my MB860 using Tapatalk 2
 

timspony

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Ported blower, 2.76 pulley, and tune are already on order! Gotta step my game up with all these stock 5.0's running around going 10's on street tires :)

Nice baseline numbers....but you're going to need A LOT more then a ported Eaton & 2.76" upper to run 10's :rockon: ... this combo good for the 11.5 to 11.7 et zone, depending on weight & driver!

Good luck :burnout:
 

bad93svt

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^^^ take advice from this guy.... He has personal experience w/making an eaton runs 10s... :rockon:
 

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