Well, you are going to lose torque with the manifold so I don't know why you went that route, but the headers might help. Your top end numbers will definitely go up, so I hope you drive around at 6-7,000 r.p.m.'s all the time.
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One more try on posting dyno numbers... all three runs are about the same... this was the best one out of the three
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Every dyno chart I've seen has you start gaining HP from 5500 on. And above 7000 it's a crazy increase over stock, like 50hp. Pretty much anyone with an aftermarket tune already has an increased redline anyway, so it's not like you're revving higher with the Boss. You just keep making power all the way to redline.
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Here is a pretty close comparison to what the OP is looking to do. This was done by Woodbine Motorsports in MD. They did all their own testing on their car with their equipment. Not only do you lose torque down low but also HP.
From the other site:
"Attached is the dyno sheets showing our best run with the stock manifold, dynatech LT's with catless mids, JLT CAI and our tuning against the same combination with the Boss 302 Intake manifold.
I know these arent the peak numbers everyone including myself were hoping for but for an initial dyno session with a new intake manifold they are very promising especially after 6500 rpms. More tuning will be done and more results are forthcoming thats for sure."
Again, you can see that the HP and TQ are lower all the way to 5700. They then are the same until 6700 where the Boss finally starts to improve. So unless you are going to rev this past 7000rpm's, again, not really worth it to me.
From the other site:
"Attached is the dyno sheets showing our best run with the stock manifold, dynatech LT's with catless mids, JLT CAI and our tuning against the same combination with the Boss 302 Intake manifold.
I know these arent the peak numbers everyone including myself were hoping for but for an initial dyno session with a new intake manifold they are very promising especially after 6500 rpms. More tuning will be done and more results are forthcoming thats for sure."
Again, you can see that the HP and TQ are lower all the way to 5700. They then are the same until 6700 where the Boss finally starts to improve. So unless you are going to rev this past 7000rpm's, again, not really worth it to me.
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Funny, found the thread where you got this. Notice the disclaimer on the bottom:Every dyno chart I've seen has you start gaining HP from 5500 on. And above 7000 it's a crazy increase over stock, like 50hp. Pretty much anyone with an aftermarket tune already has an increased redline anyway, so it's not like you're revving higher with the Boss. You just keep making power all the way to redline.
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"Disclaimer: This comparison is in no way scientific. It is not same day/same car. Only same dyno on completely different days and weather conditions. It does give us a vague idea on what the gains may possibly be compared to a mostly stock car. Not accurate, but useful enough to give us trend."
These two dyno runs aren't even the same car or the same day. The one I put up is the same car same day. I guess you can find info to support whatever argument you are trying to prove right. Please make sure to provide the "small print" items as well.
I think the one I posted is a lot more accurate.
Same day. :bigthumbsup
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