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.
There are a number of factors for trap speeds and times, a lot of the time the variables such as effective octane, elevation, tires, tire pressure, tarmac surface, slope, all can alter these numbers. It's the before and after delta that is important to consider. And the delta on these times are certainly impressive and we had a very happy client and have had many more with repeatable results.
This is the exact reason we do not normally advertise or display times and trap speeds, because there are so many variables that can change a final number that may not be realistic for another user to achieve. Someone at sea level on a 75 degree day running 93 octane is going to have totally different numbers to report than someone at elevation on a cold and windy day with different tires. Even advertising dyno numbers (final numbers) is tricky because some dynos read high, and some low, based again on so many variables!
that’s actually pretty good considering 3300ft elevation, 91 octane, stage1, and a heavier C4S albeit good launch traction.
imagine a lighter C2S (if it hooks properly) at lower altitude, stage 1 or 2, on 93 octane
Either way… any S on a stg1 or 2 isn’t going to be faster than 10.5 @ near 130… the TTS is hitting 10.2 @ 136 (which I admit is a much higher trap) stock so a tuned S will still be slower.
Last edited by reddsektor; 11-10-2021 at 04:50 PM.
that’s actually pretty good considering 3300ft elevation, 91 octane, stage1, and a heavier C4S albeit good launch traction.
imagine a lighter C2S (if it hooks properly) at lower altitude, stage 1 or 2, on 93 octane
Either way… any S on a stg1 or 2 isn’t going to be faster than 10.5 @ near 130… the TTS is hitting 10.2 @ 136 (which I admit is a much higher trap) stock so a tuned S will still be slower.
If their dyno's are accurate the C2S should be trapping 130-131 mph under standard conditions. Temperature, altitude, etc. can all be factored in. However, if he is going uphill then it's a different story. That's why real drag strips tell the story. All that is printed on the ticket. Do 4 runs and no more guessing. I can't believe it is really that hard for M Engineering to take a car to the drag strip.
Why, why, why? Why don't you just buy one and take it to the dragstrip? A company with the ability to crack the ECU and do this caliber of tuning is obviously built on extremely intelligent and smart capable individuals. I'm going to guess they must value their time elsewhere and are not as concerned as you are. I'm also sure that it is a calculated decision on their part. Some will say they would sell so many more tunes if they posted these results. I'm sure they themselves have had the same philosophical debate and still choose to focus on other items. For individuals to come on here and throw around terms like vaporware, in my opinion, is very unproductive and somewhat unfair to companies like M engineering. There is no benefit to the forum and community overall by statements like that.
2020 C2S Cab with RWS, PDCC, 18way so prob on heavier side. Only current perf mod is BMC filters (so basically stock). Aftermarket wheels are actually slightly heavier than stock so that doesn’t help either. No room to do 1/4 mile testing yet but have done some 0-60 draggy pulls pre and post tune.
Results? A reduction of three tenths off 0-60. 2.99s w rollout was best of 5 pulls. More slip than stock so traction much more of an issue now. 0-60 doesn’t tell the whole story but it’s all I got so far. I believe the more impressive gains will be in the less traction dependent 60-130. I’ll test that next.
Drives like stock if you keep your foot out of it. No change noticed really until 50%+ throttle. Then it hits much harder than before. Way less torque fall off in higher rpms. More TC intervention at lower speeds and larger throttle openings obviously. I like it so far, it’s not a Turbo S but maybe nipping at the heals of a Turbo now?
Stock vs M-tune draggy below. Slightly better conditions stock. Note area under acceleration g force curve in the after run…that tells the story. In ideal conditions with track prep I think another two tenths would be possible.
Last edited by but did you die; 11-11-2021 at 04:55 PM.
2020 C2S Cab with RWS, PDCC, 18way so prob on heavier side. Only current perf mod is BMC filters (so basically stock). Aftermarket wheels are actually slightly heavier than stock so that doesn’t help either. No room to do 1/4 mile testing yet but have done some 0-60 draggy pulls pre and post tune.
Results? A reduction of three tenths off 0-60. 2.99s w rollout was best of 5 pulls. More slip than stock so traction much more of an issue now. 0-60 doesn’t tell the whole story but it’s all I got so far. I believe the more impressive gains will be in the less traction dependent 60-130. I’ll test that next.
Drives like stock if you keep your foot out of it. No change noticed really until 50%+ throttle. Then it hits much harder than before. Way less torque fall off in higher rpms. More TC intervention at lower speeds and larger throttle openings obviously. I like it so far, it’s not a Turbo S but maybe nipping at the heals of a Turbo now?
Stock vs M-tune draggy below. Slightly better conditions stock. Note area under acceleration g force curve in the after run…that tells the story. In ideal conditions with track prep I think another two tenths would be possible.
How significant are the traction issues at lower speed? I’m intrigued by doing this tune but wary of traction issues given my RWD MT and poor road quality in my area.
How significant are the traction issues at lower speed? I’m intrigued by doing this tune but wary of traction issues given my RWD MT and poor road quality in my area.
Even with stage2, traction isn't too squirrely from a dig launch (pdk though). There's a little spin thru 1st but well behaved and 2nd no issues, much better than my previous tuned M4. And when launching from a low rolling speed there isn't any traction issue at all, it grips and rips down the road. And that's on these mediocre Pirelli's... can't wait till I get PS4S's
Last edited by reddsektor; 11-11-2021 at 06:26 PM.
How significant are the traction issues at lower speed? I’m intrigued by doing this tune but wary of traction issues given my RWD MT and poor road quality in my area.
I wouldn’t sweat traction. It’s not a hellcat. Stock I rarely had slip on LC, now there is *some* in first but not unmanageable. Impressive that it’s slipping and still manages to shave up to 4 tenths off 60.
Playing with different techniques I found TCM in sport, sport response off, chassis is sport got best results. 2.92s 0-60 with rollout is best of another 5 launches. That’s 4 tenths off my best draggy runs stock. Not terrible for a portly RWD Cab!
We mentioned this earlier for those concerned about warranty and smog, but I'll hit it again, our software allows flashing completely back to stock and will also report and verify that your CVN and CALID is stock.
-Charles@M
Flashing back to stock, Porsche will not detect that the car was previously tuned? No or low risk to losing warranty?
Edit: Can I run stage 2 maps with cat delete and stock exhaust?
11-10-2021, 02:26 PM
