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.
Per Zbomb's reuqest I wanted to share my car with the thread. I have a 2005 Porsche 996 and decided to go with a Flat 6 Innovations stage 2 4.0 motor. I had previously put on all the bolt on's, intake, exhaust, softronics tune, IPD plenum, etc and saw barely noticeable gains via the butt dyno. These are the results of my Flat 6 innovations motor, measured at the wheels of course. The car has: Speedtech exhaust with high flow cat x pipe, 997 air box - BMC air filter, IPD Plenum, and the upgraded motor. The car is completely different and has more power everywhere, by a lot. I do not think the dyno sheet is accurate however maybe due to heat soak potentially? The reason i say that is when this motor hits 6k RPM's it feels like a turbo kicking in and races to the 7500 redline ( 250 up from the stock redline ). It must have another 20 HP jump in that spot or so it seems. The dyno plot however doesn't show that surge at the end. I do have a GT2 deck lid which pumps cold air right into the intake snorkel so maybe on the road that is optimized. The car also keeps getting stronger as it breaks in, it is noticeably quicker and more responsive at 4500 miles in where I am at now verses when I first flashed the tune after break in. If anyone has any questions on this build feel free to ask.
Do you still have the Softronic tune? He's dead set against any aftermarket tuning.
Apologies for the thread interjection, I'm out.
Do you still have the Softronic tune? He's dead set against any aftermarket tuning.
Apologies for the thread interjection, I'm out.
Feel free to send me a PM if you want to ask anything. FSI tunes the car themselves ( if you opt for that ). I had the option of several tunes but I selected a valet, 91 octane, 93 octane, and 93 octane ( max power ). I just realized yesterday actually that I haven't even tried the max power tune yet! They did ask that I wait until the car is fully broken in before trying it. I could have gotten 95 octane , 100 octane etc but I would have never used those. So to answer your question no they will not use the softronics tune with their motors. I have a tuning dongle and tune for the 996 that I am not using. I do not remember however if it was sold to me specific to my VIN or if it can be used on other cars.
Here's the dyno on my car before I got it, prior to dropping a valve seat. 327 max HP, 299 max torque. Built by Tuners Mall in FL. I've yet to get the rebuilt motor dyno'd. Here are some of the mods:
- 3.8L Nickies
- ARP Connecting rod bolts
- LN billet crankshaft to IMS chain tensioner paddles
- Fabspeed cold air upgrade tube
- Fabspeed X-pipe w/ 200 cell cats and stock mufflers
This graph is for the previous owner's 3.8L before it blew up. But, I have rebuilt it again and have yet to do a new dyno.
Got it - thanks for clarification and sharing. Seems like good power through the stock mufflers, I wonder if they are a restriction and if so, how much.
Here's the smaller brother FSI 3.8L Stage1. Only external mods are IPD plenum and GT3 throttle body. Engine was built mid 2021. This is after the 100-mile break-in at FSI.
This engine never fails to create a smile. I'm at around 7500 miles now. It winds up so fast. It seems the next big step for this would be to get an X-pipe or something. The problem is the hassle with CA emissions. I could do what others do and swap exhausts when smog test is needed. Still undecided.
Here's the smaller brother FSI 3.8L Stage1. Only external mods are IPD plenum and GT3 throttle body. Engine was built mid 2021. This is after the 100-mile break-in at FSI.
This engine never fails to create a smile. I'm at around 7500 miles now. It winds up so fast. It seems the next big step for this would be to get an X-pipe or something. The problem is the hassle with CA emissions. I could do what others do and swap exhausts when smog test is needed. Still undecided.
It looks like you have a real strong motor! Considering I have the 4.0, a 997 air box and an x pipe on mine and only make around 20hp and tq than you I would say yours could make that with some intake and exhaust mods. I have been reviewing some other 3.8 engines I see on here and those really seem to make good power, almost or as much as the 4.0? I am sure it makes more now after break in, mine feels a lot stronger at 4500 miles. I started a thread for FSI motors for a discussion yesterday if you wanted to post this on there.
Here's the smaller brother FSI 3.8L Stage1. Only external mods are IPD plenum and GT3 throttle body. Engine was built mid 2021. This is after the 100-mile break-in at FSI.
This engine never fails to create a smile. I'm at around 7500 miles now. It winds up so fast. It seems the next big step for this would be to get an X-pipe or something. The problem is the hassle with CA emissions. I could do what others do and swap exhausts when smog test is needed. Still undecided.
Thanks for sharing Paul ! Glad you are so happy with it. I also wonder what freeing up the exhaust would do.
@golock911 - did your build use the total seal rings ? I know only the marketing side of what they do but seems like a really good match for our engines.
@golock911 - did your build use the total seal rings ? I know only the marketing side of what they do but seems like a really good match for our engines.
It has the CP pistons with the 2nd ring being a total seal ring. Top ring is whatever is standard for the piston. This is the standard ring set FSI uses for this piston on this level build. The CP pistons should increase the compression ratio as well. Don't ask me by how much. These were an upgrade to the JE pistons used in a Stage1. We had some discussion about how valuable the upgrade would be given that it is only a Stage1. We ended up at, it wouldn't hurt.
Cool, thanks Paul… guessing if it’s ok to run on CA91 the compression ratio bump pretty small. That ring should make sure all the available compression stays in the combustion chamber and doesn’t get wasted as blow by.
As was said above, looks like a healthy number when compared to the 4.0 and going through the stock exhaust to boot.
It seems the next big step for this would be to get an X-pipe or something.
You'll soon be able to buy the Flat 6 Innovations X Pipe with removable [V- banded] cats very soon from LN. These are USA made using USA made CARB approved cats.
You'll soon be able to buy the Flat 6 Innovations X Pipe with removable [V- banded] cats very soon from LN. These are USA made using USA made CARB approved cats.
Not sure what your definition of soon is, but maybe when it's available you can contribute to the thread by posting a dyno sheet - I like that form of marketing a lot better than THE ONLY KIND I have seen you post.... ever.
09-10-2022, 04:34 PM
