View Full Version : Dave's Evo X Build/The Life of Dave blog
Kracka
03-24-2011, 01:49 PM
Any pics of this MAP prototype? When you refer to long-runner, that is Scheides' old one, right?
Murlo26
03-24-2011, 01:52 PM
Any pics of this MAP prototype? When you refer to long-runner, that is Scheides' old one, right?
Correct.
No pics, I suppose I should've taken a few, but the prototype one might be a one off so I didn't want to take any pictures. I am sure Chris could get you a few pics though.
Those are .5 psi tick marks too on the graph, not 1psi...so you can see that both MAP longer runner type designs were quite a bit lower on spool up.
v8klla
03-24-2011, 01:58 PM
By lower are you referring to the initial boost spike? It appears that boost on both MAP long runner manifolds was lower throughout. Numbers coming soon!
Matt D.
03-24-2011, 01:59 PM
These manifold comparisons are getting old. You tune for the setup, not for the part. You could have two identically built cars and the tunes between them will be anything but identical. It might be apples to apples, but comparing Red Delicious to Granny Smith is silly. One is good for eating, the other makes great deserts. It all comes down to the application and ingredients.
Murlo26
03-24-2011, 02:01 PM
By lower are you referring to the initial boost spike? It appears that boost on both MAP long runner manifolds was lower throughout. Numbers coming soon!
Yes the boost spike, which tends to carry power through the rpm range better. But overall boost was typically lower on the long runner designs on all the runs.
These manifold comparisons are getting old. You tune for the setup, not for the part. You could have two identically built cars and the tunes between them will be anything but identical. It might be apples to apples, but comparing Red Delicious to Granny Smith is silly. One is good for eating, the other makes great deserts. It all comes down to the application and ingredients.
I could go for some apple pie, sounds yummy.
v8klla
03-24-2011, 02:04 PM
These manifold comparisons are getting old. You tune for the setup, not for the part. You could have two identically built cars and the tunes between them will be anything but identical. It might be apples to apples, but comparing Red Delicious to Granny Smith is silly. One is good for eating, the other makes great deserts. It all comes down to the application and ingredients.
You're certainly entitled to your opinion (which I agree with to an extent, every car is different), but if you recall I was all but forced into this round of testing ;)
Matt D.
03-24-2011, 02:08 PM
You're certainly entitled to your opinion (which I agree with to an extent, every car is different), but if you recall I was all but forced into this round of testing ;)
And imagine that, your product performed the best at your facility. Shocking. :)
Murlo26
03-24-2011, 02:09 PM
If you want to get technical...the short runner that they don't make performed by far the best overall on the actual testing. Best spool/most power.
Shane@DBPerformance
03-24-2011, 02:14 PM
If you want to get technical...the short runner that they don't make performed by far the best overall on the actual testing. Best spool/most power.
If that is the one listed as "MAP Short Runner" above, then it was also making the most boost.
Murlo26
03-24-2011, 02:16 PM
If that is the one listed as "MAP Short Runner" above, then it was also making the most boost.
Indeed, which is why this test can never be perfect no matter what you do.
You either change the tune to get the boost and everything as close as possible or you do what we did. I think both have advantages and both have shortcomings.
I don't think either is better than the other.
But the short runner is still running comparable boost to the baseline which is what matters.
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