Sub'd.
Great test! That blue filter is pretty small though for the cfm requirements you'll be needing.
M5lp 1207 015 Coyote 5 0 Engine Photo 15
the originals did not have the removed step of material at the bung that the new cj manifold has. the big difference between this and boss is the bung area thickness and tb size. not sure when the entire bottom segment of material was removed but that is obviously making some power.
PS most of the manifold weld line mis-match is in the outboard runner - there is almost no laminar flow in that area think of the engine sucking in air and it follows the inboard edge of the runners... that's why ford left that flange in on the stock and boss intakes, and now it seems on the cj intakes.
Not many filters out there for a 4.5" tube. This one has a smooth radius inlet unlike many other ones out there. Of course we could not find any information on the flow numbers on this one. But it was one we could get in short notice. We are looking into a longer body filter. That will be another change next time out as well.
I agree. I think the reworked injector boss and throttle body inlet were the big contributors to the increased power. The throttle body inlet had a lot of mis matched castings causing a large lip in several spots. Besides the injector bosses, Drew just blended what was there. I would not call what he did in the ports as "porting". Blending and cleaning is more accurate.
This is Drew's reworking of the CJ intake thread. We can make another thread with the other info and testing. So for now I will just post up the as delivered CJ intake versus the one Drew cleaned up.
Both intakes were run with the SCJ mono blade throttle body. Both were ran with the exact same tune. Only the intake was changed.
SAE
STD
With the cleaned up intake there is a solid 10-12 HP & TQ increase through out most of the RPM. :rockon: Nice work Drew!
This is Drew's reworking of the CJ intake thread. We can make another thread with the other info and testing. So for now I will just post up the as delivered CJ intake versus the one Drew cleaned up.
Both intakes were run with the SCJ mono blade throttle body. Both were ran with the exact same tune. Only the intake was changed.
With the cleaned up intake there is a solid 10-12 HP & TQ increase through out most of the RPM. :rockon: Nice work Drew!
Those are some very promising numbers. I wish I could afford a CJ intake, but then I'd have to clean it up lol. I'm just not willing to push my engine to 7800. I think I'm going to have to get a Boss mani instead.
Good solid gain on the smoothed out one!
Amazing what attention to detail and minor modifications can do!
Same goes for exhaust and really any other mod you do. Making minor changes here and there all add up.
Good Job guys!
Amazing what attention to detail and minor modifications can do!
Same goes for exhaust and really any other mod you do. Making minor changes here and there all add up.
Good Job guys!
This is with cat delete pipes, so figure around 400ish at the wheels with stock cats and a not "cleaned up" CJ manifold and SCJ mono-blade?
Nice numbers. Was this on 93 octane? Also full exhaust and what gears/tire height? Do you have a full mod list? My car made 453 with the JLT bottleneck and another 10 with the Kenne Bell 4.5'' test pipe we had all on 91 octane. Curious on the comparison. sounds like your TB testing meshes with my previous calculations? Were the dual bores pretty bad?
This is great guys! Are you still planning on doing a CJ vs Boss intake test?
Doesn't anyone think it's complete BS that you have to do that work to the CJ manifold for how expensive it is?