Quick back story I see everyone saying don't do the cobra intake it will run out of air but its what I wanted so this is the results. I used Bigdogs porting because they offered me the most porting at the best price with flow numbers. He gave me higher numbers for 1/2 the price as others just that simple.
Will update this first post with all info just want have a ton of time once I get the dyno done I want have the time to write all this up so getting this part done so I can just plug in numbers. Dyno want happen Friday but am just waiting on the tuner and Dyno to free up. Maybe Saturday.
This is 2 different intakes by BigDogs porting on facebook. (Will write a review on Them after the lower on one of the intakes comes in to make sure I can give a true review) Will post a link to this thread once I do it.
Facebook page
BigDogs Porting. 1.6K likes. We offer custom porting and modifying of factory and aftermarket heads, intake manifolds and throttle bodies.
www.facebook.com
Dart Block 363 Trick Flow 205 11R heads Long Block build by FordStroker.com (Have)
Innovators West Balancers (Have)
T-56 Magnum 1st 2.66 6th .063 (Have) Swap info thread below https://forums.corral.net/forums/gen...l#post18584786
Drive shaft 3.5in Aluminum 2 piece slip yoke, Aluminum flange (Hanlon Motorsports) (Have)
Clutch McLeod RXT Twin Disc 1000HP Clutch (Have)
McLeod Aluminum Flywheel (Have)
Stock Air Box (Have)
Megasquirt PNP (Have)
C&L 85mm Mass air (have)
42 pound injectors (Have)
Exhaust is Mac 1 3/4 shorties and 3in pro chamber and 3in out the back. (Have) has 2.5in collector
Gears 331 (stock tire size 26in)
31 spline axels and TrueTac (Have)
255lph T fuel pump (Have)
Electric fan (Have) Mark 8 fan with DCC controller Part# FK-75
MSD 6 Plus with 2 step and timing retard (Have)
Dart SHP 363 Internal Balanced, Trickflow 11R 205 heads 66cc (Fel Pro MLS 1134 Head Gaskets). 10.1 compression
RPM 4340 crank, Scat 4340 H Beam Rods, 2618 Forged Wiseco Pistons, Wiseco's GFX ring. Motor is good for 9k rpms if I used solid lifters (I'm not) was told 7,500 with hydraulic lifters.
Custom cam for NA (Idle to 6,500rpms) Int .574 Exh .571 Dur @.050 Int 224 Exh 234 Lobe 112
Morel HYD roller link bar lifters. (5323)
Jesel shaft rockers (They only make one for the 11r heads) (KPS-470191)
Dart Block 363 Trick Flow 205 11R heads Long Block build by FordStroker.com (Have) Innovators West Balancers (Have) T-56 Magnum 1st 2.66 6th .063 (Have) Swap info thread below https://forums.corral.net/forums/gen...l#post18584786 Drive shaft 3.5in Aluminum 2 piece slip yoke, Aluminum flange...
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Mustang Dyno (Edelbrock performance rpm intake)
Max 368hp 5,190rpms 409tq 4,217rpms From TB, With stock air box and 90 it made 367hp 5,104rpms 412tq 4,191rpms.
WOT is at 32deg tried 33.5deg and just like others have said 32deg is the sweet spot.
Round 2 (test are ran with 3/4in nitrous spacer unless specified otherwise)(TBs are ported by Bigdogs porting all but the 90mm TB)
Stage 2 upper Cobra intake 75mm TB (lowest port #6 289 CFMs Average 293cfms)
(Lower intake is the stage 3 with lowest port #5 334 CFMs Average 340cfms)
Max ?hp ?rpms ?tq ?rpms From TB, With stock air box and 90 it made ?hp ?rpms ?tq ?rpms.
Stage 3 upper Cobra intake 80mmTB (lowest port #2 323 CFMs 330 Average cfms)
(Lower intake is the stage 3 with lowest port #5 334 CFMs Average 340cfms) Upper and lower together flowed an average of 326cfms
Max numbers (Best test)
Max ?hp ?rpms ?tq ?rpms From TB, With stock air box and 90 it made ?hp ?rpms ?tq ?rpms. (have a 3/4in spacer that is ported by Bigdogs porting for max #s)
150 shot Nitrous (Best Test)
Max ?hp ?rpms ?tq ?rpms From 90mm TB,
Test 1
70mm Accufab TB (942 cfms) With stock air box and 90 way I will drive it everyday.
?hp ?rpms ?tq ?rpms
150 shot Nitrous
?hp ?rpms ?tq ?rpms From 70mm TB, With stock air box and 90 it made ?hp ?rpms ?tq ?rpms. Way I will drive it everyday.
90mm Accufab TB (1369 cfms) Intake only has 80mm opening it flows 1070cfms
?hp ?rpms ?tq ?rpms
Hopefully your build and the exposure of the level of porting that can be done to factory parts can open some eyes. Many felt the Bigdogs ported Cobra was not a good match and that's because they did not understand how far and what a good porter can do. The Bigdogs Stage 3 ported Cobra actually flows a substantial amount more air than the out the box aftermarket manifolds it compares to. We provide before and after flow results on our porting to show our customers exactly how much flow they've gained with our porting. For more examples and details on prices you can message us on our Facebook page at Bigdogs Porting.
Time and weather isn't doing me any good. Looks like with my work and vacations with family we are going to try for Dec 13th-16th if not it will be January. Look its going to happen I'm not even bring the car home I told the tuner to keep it till we dyno it just have to find time.
Bout time lol. Yeah my guess is it's going to make more hp than the home ported Rpm but since the Stage 3 ported Cobra's runner length was shortened and flow more than what your cam and 2 5" header collectors can support rpm wise it will make less low end torque. Now when you put the stage 2 ported upper on it will make more power everywhere but still your motor will not max that out either.
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Not sure why it doesn't run now, it ran fine before,
it turns over, and fuel pump works, there is pressure in the fuel lines.
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So I’m gonna be building an engine for my F150 SCLB 2WD soon and this thread will have the parts list and any questions I end up having after I eventually start building it. I imagine this might push 300hp/300tq but I may be optimistic.
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