Official Richard Holdener who wants to buy an intake manifold list

[WolfWings]

Originally Posted by tk-421

I believe WolfWings was referring to the fact that the "midrange manifold" prototype showed higher low- and mid-range gains than the latest model. Judging from the above dyno graph, I'm thinking the gains at 2500RPM and 3500RPM should be barely noticeable under normal driving conditions, and that the really juicy stuff should kick in at 4K+ RPM, which is a territory that a lot of "point A to point B" folks don't usually tread under.

Bingo. My car's a DD that sees use at autocross, and my biggest wish is more grunt around the 2500-4000rpm range, since it's either stay in 2nd and go way up and down the RPM scale from 2000-redline as I go through the course, or bash my poor transmission to cinders slamming in and out of 1st gear ten or more times in a single 45-second run as I go in and out of corners. Even with my decent rev-matching, it's rough on the transmission.

Originally Posted by tk-421

Again, I still consider this a worthwhile purchase, but I think more gains at the low- and mid-range would've been even better for people that spend most of their time in the street (i.e. between red lights, traffic, etc).

Oh, I make no bones about complimenting this intake, it's wonderful looking for those that can hit open track day or for playing around on the highway where you can really unwind the decent legs on this motor. But for my particular performance-improvement goals (avoiding downshifting to 1st gear to deal with sub-25mph corners) it doesn't look like it would help that much compared to what I remember of the mid-range graph that had everything shoved about 500rpm to the left for HP, so torque was a notch higher down across the full low-range. Or was that some other dyno graph unrelated to any of these intakes?