I thuogh i share some information that can be usefull for others on H-T
both were done the same day just an hour apart let me know what you guys think

Red ported performance x
blue victor x
give me brake the pic was taken from a cell phone and i don't know how to turn it around

set up is
84.5 b20 block
12.5 cp pistons
ported b16 head
72mm throtle body
real RMF headers
skunk 2 stage 3 tunner cams

the car ran 11.6@116 with the performance x so hoping for better numbers this time

 

Which is which?

 

fixed

 

The Victor X is more suitable for your setup anyways. I traded my Victor X to All_Motor for his Performer X. He's also running a b20vtec. He got better results for the Victor X as per All_Motor said he was already maxxing out the Performer X manifold.

 

on a 2.0 setup, i choose victor X all day any day

 

nice, how much whp is that?

 

Here u go i fixed it for u lol.

 

seems to be 239 victor x for the low one and like 246 for the performer x.

 

Blue is Victor x, Red is Performer X.

 

I tried the Perf vs Victor comparison on my personal two liter (12:1, ported head, pro2's full exhaust), and the Perf was better all over the place. Even up top. We only took the motor up to 8500rpm. Both manifolds had the same mods, TB and gasket matched, not cut open or anything.

 

its the other way around

 

I've been folowing your thread for a while and you mention something about comparing the two, i was waiting but didn't see anything so i did it thinking you had sold the hatch before doing the comparison

 

thanks

 

239 peformance x to 248whp victor x

 

No, I did the comparison, just never got around to posting it up. They were neck in neck up top, by which I mean from 7500-8500.

 

Thats because the Per X mani is meant for midrange powers and Victor X is known for high end power. If you took the rev up higher im pretty sure the performer x would start to peak off.

Maybe you should experiment it. It would be interesting

 

I know what each manifold is designed for. Thats why I tested them. I cant test them any further, because as the posts above indicate, I sold the car. If the Victor X was going to be THAT much better at 9k, it would have started showing at 8500. The Victor might have also wanted a larger TB than I was running, 68mm, but I'll never know.

p.s. if somone doesnt mind hacking up a manifold, i bet they would find it interesting to knock a few inches off the perf X runners, reweld it back up and run it. Might be surprised.

 

Have you seen the results from that? I believe I sent you the pictures but I never herd back on how it did.

 

Wouldn't this create almost a Skunk2 design?

 

It would look a lot like this:

 

those were my exact plans before i put the victor x

 

It would have similar length or slightly shorter runners but a greater plenum volume than the Skunk. When you look at the two side by side that's the biggest difference between the two intakes (as well as slightly longer runners). If I had the time and facilities, I would love to test different sized intake manifolds like the P30, ITR style, Performer X, Victor X etc. with different sized throttle body combinations to see what happens. I believe that there's power to be gained in this area, just like a custom length intake pipe but obviously a lot more risk and money involved when you chop up expensive parts.

 

that looks like it could be the perfect balance there of runner length and plenum size for a decent 2 liter build. Was any plenum work done to it?

 

Dan is smart. I wish I could have more customers like him.

I'll post more about the modded perf X later tonight.

 

i wonder if a t-body spacer would play any role in it that could help or harm