What do you see in the power curves?

Which curve makes the car faster? The red or the blue?

 

i think the argument can be said for th 5/16 that top end is curved but does give more underthe curve earlier in the rpm range.

I was always underneath the impression that the mrev2/5/16 move the curve of the revups power earlier in the rpm band with sacrifice to the top end savvy of the revup manifold


and that the 1/2 spacer and mrev2 actually makes power beyond them both offering the higher peak and top end values, but less under the curve then a 5/16 spacer due to pure volume of the spacer.

But in a race technically shouldnt the 1/2 spacer mrev2 top end wise surpass both revup and 5/16 mrev 2 counter parts. With the advantage down low given to the 5/16. And the normal revup being average kind in between performance with a tamer powerband.

 

Yes, the 1/2" spacer on the MREV2 has more top end.
It trades 1-2 more HP for the stock strut bar.

For street or 1/4 mile racing the absence of the strut bar won't make a difference but I wouldn't trade 1-2 more HP for the strut bar when road course racing is involved.

The best choice depends on what kind of driving you do.

 

Here is my dyno. If you take a look, i lose top end, for like, 300 rpm and its only 2-3hp, then it goes back to where the original rev-up topend was at. This is just my example, in my engine, the revup lower manifold is inferior compared to tony's mrev2 in every way. I would gladly give up those 2-3hp for that limited amount of time for what i gain underneath. After 6600 rpm, the revup manifold and mrev2 manifold have the same hp.