Jamie@dundonmotorsports

Yes they're to help us with expansion and timing on the reflected waves in the headers

All dyno's can be manipulated. DIN as a correction factor, putting the ambient temperature sensor in hot water for super positive SAE corrections, "calibrating" the sensors, not recording RPM etc... A dynojet you will recall is just a weighted roller, thats great for strapping a car down and doing full ramp runs (full throttle pulls), It's horrible for tuning cars part throttle, seeing details of resonance peaks etc. And your extensive experience on a dynopak I'm not sure about. We have a Dynapack hub dyno, so no losses or manipulations due to tire pressure, wheel size offsetting the gear ratios etc. and we have great correlation with our local DynoJet.

If we want to discuss dyno's and all the nuance, science of tractive effort vs accelerating a weight, the ability to control the instrument tests you perform on a dyno etc... PM me, happy to discuss. In the mean time, it's a before and after dyno with intake temps controlled, performed on the same car, under the same conditions.

Here's a Mustang Dyno that was done recently on a 987.2 with our intake runners, notice similar gains to what we reported?



Yes you would see gains similar to the car we ran and you don't even need a Cobb custom tune, we ran a stage 1 and it was great off the shelf.

97supratt

The gains are from 6900+ rpm. Everything under that is minimal. The OEM runners seem sufficient below 6900 rpm. I'm not bashing your product, it produces huge gains up top!!! Nice gains!!

titleistaddict87

I was looking at that more closely as well. Wish the gains were a little lower in the rpm range. Harder to drive the car between 6k and redline on the street.

Jamie@dundonmotorsports

No bashing taken, the intake runners are designed to work at high rpm, an area the car falls flat. They're made to work in concert with headers, where the headers carry the low end torque gains and the runners take over for high RPM HP gains. It's part of a well balanced breakfast, so to speak...

4 Point 0

I saw the new setup for Turbo's. Will that fit a 991.2 GTS ? It was about $9K, did that include the IPD plenum which I already have?

Jamie@dundonmotorsports

I'd have to call Tial to find out. I would assume it fits GTS as 991.2 S/GTS is all mainly tuning...

PM me so we keep the thread uncluttered...

97supratt

I'd love to see a graph showing full bolt on a C2S. Filters, headers, exhaust, tune and intake manifold.

spdracerut

What's impressive are the big gains up top WITHOUT losing hardly anything everywhere else. Part tuning for high strung NA engines is tough!

97supratt

I couldn't agree more!!

Jamie@dundonmotorsports

Me too you should do it and show us!

911mhawk

Up over 6,000 is where the best sound and most fun is on this engine, impressive.
I told myself I wouldn't mod this car and would keep it a cheap DD, hmmmm

911mhawk

And toss out the heavy seats, get 6lb battery, scrape carpet foam, lexan rear windows, weld in slicktop, camber plates, and R comps.

Jamie@dundonmotorsports

Starting a Group Buy over on the 987/981 forum for these for those interested, 10% off if we can get to 5 guys. for the 991 Carrera and S you don't need a Cobb AP, but it's recommended.

https://rennlist.com/forums/987-981-...l#post16132453

97supratt

Honestly I would but Porsche of NA will make an example of me and void my warranty. Hahahha

o2bcdn

I am interested in a group buy!