2012 Boss 302R Intake Manifold - AmericanMuscle Pre-Order
03-10-2011, 07:52 PM
#61
1st Gear Member
Join Date: Feb 2011
Location: NV
Posts: 80
Dyno results will be up a little later this week. While this manifold does lose a little bit of low-mid range power on a naturally aspirated car, it gains as much as 58RWHP from 7000 and up! It smooths out the whole powerband, and when used with nitrous (like we did) it's a huge increase! We have plenty of before/after testing - as well as some track footage to share with you.
I think this would be more humane!
03-10-2011, 10:36 PM
#62
The Coyote motor, especially with the Boss manifold is meant to rev to 7500. If we put some different valves/springs in, we could go to 8000, like the Boss motor.
150 shot of nitrous isn't really all that big of a deal on a coyote, either. We've been revving this car to 7500 for months, down at the track numerous times, hundreds of dyno pulls (literally hundreds) and it's running as strong as ever.
These will take a beating!
03-11-2011, 05:42 AM
#63
Thanks for posting up the dyno chart. Very informative.
Just as I suspected, the Boss intake manifold makes more HP by allowing the engine to keep its torque curve longer into the higher RPMs.
But unfortunately, the torque curve takes a hit in the low to mid end, and peak torque is also sacrificed (just like in the real Boss engine). You can see that there is a chunk of the area under the low end of the torque curve is gone.
Is there a way to tune to correct the low end torque loss? Just like how the TracKey tune is supposed to address low end torque curve loss?
Just as I suspected, the Boss intake manifold makes more HP by allowing the engine to keep its torque curve longer into the higher RPMs.
But unfortunately, the torque curve takes a hit in the low to mid end, and peak torque is also sacrificed (just like in the real Boss engine). You can see that there is a chunk of the area under the low end of the torque curve is gone.
Is there a way to tune to correct the low end torque loss? Just like how the TracKey tune is supposed to address low end torque curve loss?
03-11-2011, 11:30 AM
#64
Thanks for posting up the dyno chart. Very informative.
Just as I suspected, the Boss intake manifold makes more HP by allowing the engine to keep its torque curve longer into the higher RPMs.
But unfortunately, the torque curve takes a hit in the low to mid end, and peak torque is also sacrificed (just like in the real Boss engine). You can see that there is a chunk of the area under the low end of the torque curve is gone.
Is there a way to tune to correct the low end torque loss? Just like how the TracKey tune is supposed to address low end torque curve loss?
Just as I suspected, the Boss intake manifold makes more HP by allowing the engine to keep its torque curve longer into the higher RPMs.
But unfortunately, the torque curve takes a hit in the low to mid end, and peak torque is also sacrificed (just like in the real Boss engine). You can see that there is a chunk of the area under the low end of the torque curve is gone.
Is there a way to tune to correct the low end torque loss? Just like how the TracKey tune is supposed to address low end torque curve loss?
So this is with no long tubes, no cams, no F/I. When we sprayed this setup with 150 shot, it gained every last bit of that back. You have to have bigger mods to take advantage of it down low.
With that being said, the whole powerband is 150 times smoother and you don't notice ANY power loss. We picked up MPH ad .04 in the 1/4 mile, so you can see the gains offset the loss at the track. Around the street, like I said - you can't feel it at all. The only thing you feel is how much smoother it feels.
You're spot-on, though. This is why the Boss manifold has a lower torque rating.
06-06-2011, 07:22 PM
#67
Join Date: Dec 2009
Location: Wantagh, NY
Posts: 45
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