When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Well, so far I'm loving my ported rod mod intake - My car feels a lot quicker with it. Had it dyno tuned after install and I picked up 19HP and 18 lb. ft., but keep in mind I only had a mail order tune previously. I'd say at least half of the gain came from the tune. I've also dropped roughly .15 - .20 in ET. I'm not sure this new intake would gain me much of anything, as I'm already at 450 HP on a Mustang dyno, cam and bolt ons.
It looks like about 10-15 HP at peak with the 90mm TB and 15-20 HP if you step up to a 113mm TB, and assuming that you upsize the entire intake tract to match the TB. Either way, a gain of 8-10 numbers across the entire powerband didn't happen, which is fine as it looks like the intake begins to really take off at 5000 RPM. Just don't claim what you can't back up.
Probably a good choice on a 427 or 454 LSX. I'd like to see it compared to a MSD.
Richard Holdener did that exact thing in tonite's video comparing the Holley Hi-Ram, MSD, and Performance Design unit on a 427 LS7.
Short version- Holley was weakest to 5k RPM, PD and MSD about even to then, then PD pulling ahead a bit
That was a good test video with a 700+ hp NA motor. The upper end delta was about 20 hp from the other 2 intakes and the MSD. I think a well ported MSD could probably narrow that top end gap in half and pick up some tq down below. If you have hood clearance issues the MSD is the way to go. I think a ported MSD would then be better or equal to say 6,000 rpm with the other manifolds beginning to be higher (but not by much) afterwards.
From everything I have seen, these intakes NEED ported to make the #. I don't think it's a horrible design but def needs refinement of the plenum to make it better. I have seen a handful kick out decent #'s, mostly on LS3 builds. A Super Victor or CID will kill this and a Hi Ram in power. Old school still rules in some facets of this genre. That being said, the bigger throttle body is a factor that needs to be looked at more. I think there are a lot of cathedral builds that would turn up even more with a 112mm tb on the plastic. Makes you wonder....
We need to see this intake tested on a cammed 6.2 with FAST 102 vs PD XS on chasis or engine dyno. To many variables, we need to see it real hand same day. Anyone have updates!!
Just purchased mine. Yes there are some smoothing that could be done. Here is a dyno for a cam only camaro ss. This a superior intake to all other. Rod mod is hack mod this is professional intake that is pure race bread. Similar to the intakes on C6R. With smoothing only and porting the intake mouth transition I bet I gain another 5hp. My heads added 35hp for my ls3 plus another 25hp..that's 60hp that's great numbers NA. I'll post my results in the spring after the dyno.
My concerns at the moment are 1) how to mount a non-TCS cable TB & cruise control and 2) will the existing OEM hoses/solenoids running in the crevice between '98 manifold & heads still fit in the same location? Everything I've read in the past is that it's hard to idle tune >92mm TB on a F-body.
Just purchased mine. Yes there are some smoothing that could be done. Here is a dyno for a cam only camaro ss. This a superior intake to all other. Rod mod is hack mod this is professional intake that is pure race bread. Similar to the intakes on C6R. With smoothing only and porting the intake mouth transition I bet I gain another 5hp. My heads added 35hp for my ls3 plus another 25hp..that's 60hp that's great numbers NA. I'll post my results in the spring after the dyno.
This thread just went dormant...
On this dyno, this was in addition to Ported/milled heads and adding the XS intake? So, no real test solely of the intake before and after?
I have a 5th gen Heads/cam currently tuned conservatively sitting at 480whp. I have a stock intake and TB running the GPI SS3 cam but only out to 6300rpm.
Would love to see what this does added to a setup like mine. ROD MOD and retune is all I would need most likely but..
The dyno graph shown is form a heads cam car, there are gains to be made. I have TSP heads, big cam and 1 7/8 headers 102 Fast with 102 TB and my fast intake made zero "0" HP. Ill post my gains when I dyno in the spring.
On a big stroker this thing is a torque monster. Need a few different runner options that will help in the top end as all the runners are high 10 to mid 11" lengths.
On a bgger 416" motor we found very little top end gains over stock LS3 intake, it did cary the power 2-300 rpms further, but down low between 2500-5200 it lost 10-15hp, and 15-20tq. I also found idle tuning and tip in a bit tricky and finick. We did made a spacer and a bracket to use a cable throttle body for these is anyone is interested, we can make more. We have a more recent post and a youtube video on tis intake, with some different throttle bodies on the dyno. Its my personal car, and have decided the power loss below 5200 is too much and I will be putting the stock LS3 intake back on and a 92mm throttle body. My combo worked best this way for what I use it for. The PD intake does look a bit cooler. I will be selling it along withg the Nick Williams 103 DBW throttle body, as well as brackets to convert to a cable throttle if anyone is interested. Intake has about 12 dyno pulls and 40 miles on it. The Nick Williams TB has about 5 miles and 4 dyno pulls. PM if you like
07-08-2023, 05:14 PM
