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Cobra Jet intake on 5.0L truck

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Old 03-31-2014, 10:19 PM
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Default Cobra Jet intake on 5.0L truck

Saw this at NMRA race in Bradenton FL and thinking about getting it for my new to me 2012 5.0L truck

Dyno shows 297 RWHP stock and 356 RWHP after cobra jet intake , cobra jet throttlebody , custom 5 inch CAI and American Racing headers into single 3inch magnaflow exhaust and BG racing has a tune developed with this combination that works really well drives like stock till you nail on it.
They even too me out for a spin and it was shifting at 7000-7100 RPMS and was running 13.50s in the quarter at 103+ MPH and they are saying with mustang GT cams and more tuning and opening up the exhaust more they are striving to hit 400 RWHP before adding a procharger in the near future.

I will say the cobra jet intake just makes under the hood just look bad ***

What is everyones take on this?

Last edited by 2002BLGT; 03-31-2014 at 10:21 PM.
Old 03-31-2014, 11:21 PM
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They have used the boss intake but not the CJ intake here. You really need to rev the **** out of the engine to make it worth it.

I'd like to see the dyno graph of that. I'm willing to bet the biggest bolt on gain was from the headers.

With the Mustang cams and the CJ intake I'd expect to see some loss of low end torque but even more gain in the top end. If they rev to 8k rpm they might hit their goal.
Old 04-07-2014, 11:02 AM
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They just posted up graphs on facebook so I figured I would share

Bone stock#s were 297 RWHP 328 RWTQ
First was headers Y pipe into single 3 inch exhaust and cobra jet intake and TB and tuning netted 356 RWHP 341 RWTQ

After just switching to true duals

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376 RWHP 361 RWTQ

After putting in Boss mustang cams and valve springs

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408 RWHP 362 RWTQ right at 7K

This thing should be in the 12s in the quarter still NA

Last edited by 2002BLGT; 04-07-2014 at 11:05 AM.
Old 04-07-2014, 04:06 PM
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Very impressed with those numbers for bolt-ons and a tune. A lot of work for some serious gains though!
Old 04-07-2014, 05:25 PM
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Originally Posted by 2002BLGT
Bone stock#s were 297 RWHP 328 RWTQ
First was headers Y pipe into single 3 inch exhaust and cobra jet intake and TB and tuning netted 356 RWHP 341 RWTQ

After just switching to true duals

376 RWHP 361 RWTQ

After putting in Boss mustang cams and valve springs

408 RWHP 362 RWTQ right at 7K

This thing should be in the 12s in the quarter still NA
So they switched to dual 3" and picked up 20hp/tq?

They used the GT cams or BOSS 302 cams? I ask because I was told that you need to clearance the heads for them to fit.

Boss5.0 (a member who used to come here) I believe did a 12.6 N/A in is RCSB.
Old 04-07-2014, 10:45 PM
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Originally Posted by mechanicboy
So they switched to dual 3" and picked up 20hp/tq?

They used the GT cams or BOSS 302 cams? I ask because I was told that you need to clearance the heads for them to fit.

Boss5.0 (a member who used to come here) I believe did a 12.6 N/A in is RCSB.
Yes picked up 20 from going from single 3 to dual 3 inch exhaust , and they were actually GT intake cams and BOSS exhaust cams and Boss valve springs that were all donated to the build
Old 06-04-2014, 09:24 AM
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here are photos of the truck and set up with and before pro charger, i have been talking to Brad from BG racing and is a stand up dude and i will be doing an n/a cobra jet set up with him for my truck, i will be selling my boss 302 intake manifold and intake set up for anyone interested, and he did both intake and exhaust side cams with boss cams and he said the only thing had to do was add boss valve springs and he did not modify heads for anykind of clearences
Attached Thumbnails Cobra Jet intake on 5.0L truck-photo-1-7-.jpg   Cobra Jet intake on 5.0L truck-photo-2-8-.jpg   Cobra Jet intake on 5.0L truck-photo-3-4-.jpg   Cobra Jet intake on 5.0L truck-photo-4-4-.jpg   Cobra Jet intake on 5.0L truck-photo-1-8-.jpg  

Cobra Jet intake on 5.0L truck-photo-2-9-.jpg  
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Old 06-04-2014, 09:28 AM
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here are few more pics of the truck
Attached Thumbnails Cobra Jet intake on 5.0L truck-photo-5-4-.jpg   Cobra Jet intake on 5.0L truck-photo-4-5-.jpg  
Old 06-04-2014, 05:46 PM
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Originally Posted by hi-rev
here are photos of the truck and set up with and before pro charger, i have been talking to Brad from BG racing and is a stand up dude and i will be doing an n/a cobra jet set up with him for my truck, i will be selling my boss 302 intake manifold and intake set up for anyone interested, and he did both intake and exhaust side cams with boss cams and he said the only thing had to do was add boss valve springs and he did not modify heads for anykind of clearences
Good information. Any track numbers yet?
Old 06-04-2014, 07:22 PM
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Originally Posted by hi-rev
here are photos of the truck and set up with and before pro charger, i have been talking to Brad from BG racing and is a stand up dude and i will be doing an n/a cobra jet set up with him for my truck, i will be selling my boss 302 intake manifold and intake set up for anyone interested, and he did both intake and exhaust side cams with boss cams and he said the only thing had to do was add boss valve springs and he did not modify heads for anykind of clearences
hey that looks like it from MiIR event at the beginning of May I was there on the vmp dyno, I met Nina but she said they haven't run or dyno'd the truck at that time with the procharger on it... They had the prototype stifflers on the truck


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