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Aftermarket headers on this platform are a downgrade. We will certainly make note of any headers if we find an iteration that makes good power on a dyno, we have yet to see that however.
On the direct-injection Porsche turbo motors including 997.2 and 991, stock headers run the lowest EMAP and make the most power. Headers can become useful if you are running externally gated turbos on built motors, but that really is the exception.
M-Engineering: PTME1100 build from Diamond Shine Motorsports breaks 900whp!
M-Engineering recently completed tuning on this PTME1100 Stage 4+M car from Diamond Shine Motorsports in Palmetto, Florida.
We were tasked with building 4 maps for this car. 93 / 93+Meth for the street, and MS109 / MS109+Meth for the track. Equipped with some really great hardparts on this build, we were able to break the 900whp barrier during our dyno session.
The tuning was completed at our Pompano Beach Dyno Facility in South Florida and is using our full Stage 4+M PTME1100 kit.
This car made some awesome power! It will be coming back to our facility for additional tuning soon with a new and improved exhaust added. The current aftermarket system installed on this car produces a fairly high EMAP and is holding it back, so more boost is to come soon...data is important
Hey guys, we just finished up another tune for a build from DiamondShine Motorsports with our proven PTME1100 turbo package using M-Tuner.
This car had just about identical mods to their last build and made some great power on the dyno. This is done on our Mainline ProHub dyno which is a fairly low-reading dyno compared to some others out there.
Doesn't the shelf tune, tune only, make 730whp on your dyno on 93? Now do these upgraded turbos make less or near the same on 93? Don't want to run meth or race fuel.
Any news on E85? Any work being done on a fuel rail and fuel pump setup to run E85?
Doesn't the shelf tune, tune only, make 730whp on your dyno on 93? Now do these upgraded turbos make less or near the same on 93? Don't want to run meth or race fuel.
Any news on E85? Any work being done on a fuel rail and fuel pump setup to run E85?
On our Mainline ProHub dyno in South Florida which is a fairly low-reading dyno, these cars make around high 600s or 700whp or so on 93 pump gas on Stage 1 and Stage 2. Upgraded turbos will net you around mid 700's or so and into the 800's once you bring octane up, it is fuel dependent and also dependent on DA. The "full enchilada" package with PTME1100 turbos, MS109, Meth, and supporting mods can get you just above 900whp on the stock motor. This is at the wheels on our Mainline ProHub dyno.
The fuel system on the stock motor does not support full E85.
...I wanted to bounce back to this thread and show y'all some further data and information regarding exhaust systems. If you recall, we compiled a bunch of EMAP data (exhaust manifold pressure) using an aftermarket auxiliary sensor on the headers to measure pressure on the exhaust side. Higher EMAP is bad and puts stress on the turbo and results in huge power losses. We found that the stock headers, just like the 991 and 997.2, make the biggest power on these cars, even in Stage 4 configurations with big turbos. "Upgrading" to aftermarket headers on this platform has proven to be a large loss.-Charles@M
Originally Posted by M Engineering
Post #12 on this thread. - Aftermarket headers on this platform are a downgrade. We will certainly make note of any headers if we find an iteration that makes good power on a dyno, we have yet to see that however.-Charles@M
Originally Posted by onfireTTS
Same for the 991.2 ? Headers are a waste ?
Originally Posted by M Engineering
On the direct-injection Porsche turbo motors including 997.2 and 991, stock headers run the lowest EMAP and make the most power. Headers can become useful if you are running externally gated turbos on built motors, but that really is the exception.-Charles@M
This makes me want to investigate and pay for swap back to stock headers and see how it compares to Kline given my stock turbos setup.
On our Mainline ProHub dyno in South Florida which is a fairly low-reading dyno, these cars make around high 600s or 700whp or so on 93 pump gas on Stage 1 and Stage 2. Upgraded turbos will net you around mid 700's or so and into the 800's once you bring octane up, it is fuel dependent and also dependent on DA. The "full enchilada" package with PTME1100 turbos, MS109, Meth, and supporting mods can get you just above 900whp on the stock motor. This is at the wheels on our Mainline ProHub dyno.
The fuel system on the stock motor does not support full E85.
-Charles@M
HI Charles. Thanks for the reply.
Bummed to learn above. Pump fuel is so easy, E85 or 93/91 octane. I had thought about doing the upgraded turbos eventually but the thought of having to mess with methanol and/or the cost and pain of race fuel is a bummer. Have you ever tuned for avgas 100LL?
Bummed to learn above. Pump fuel is so easy, E85 or 93/91 octane. I had thought about doing the upgraded turbos eventually but the thought of having to mess with methanol and/or the cost and pain of race fuel is a bummer. Have you ever tuned for avgas 100LL?
If you want to party hard and get to 900whp, methanol and race gas are needed, it's just simply octane limitations with pump gas. We do not tune with Aviation gas as it is leaded generally. Just use pump 100 or something like MS109 or Sunoco 260GT plus.
08-22-2023, 11:25 AM
