Suspect the cooling was a bit lacking especially blowing air into the side scoops. The dyno plot looks abnormal with the jump at the end, mine on a MAHA doesn't look like that at all. FWIW mine did 430 BHP stock. 449 BHP with catless manifolds and link pipes. 460 with an aftermarket exhaust added to it which made it ungodly loud and annoying to drive. Adding a software tune got it to 470 BHP corrected to SAE. But the tune is helping out quite a bit on track there seems to be less derating as it's putting more fuel in which cools the combustion chamber. On the Nurburgring my top speeds were significantly higher than what I've seen from stock cars. I added 200 cell cats into the link pipes. This took care of the nasty smell but still left the car loud and harsh sound wise.
Fair comments. They’ve been fairly accurate on the other cars that I’ve tested. I presume catless is the main improvement? What is SAE? I have soul headers ordered.
@@heelntoe1904 Just a different correction factor, should read a tiny bit lower then DIN which was used on your run. Biggest gains probably the headers and then the rear box. There was quite a bit more power with the Soul valved exhaust vs the stock box over a pretty wide RPM band. I was using Soul race headers as well. There's something in the over axle pipes but I'm pretty sure it's the smallest gain out of the 3 big pieces. I went to the dyno about 5 times. The car once hit 465 BHP without a tune (+35 over stock) but that was in the most obnoxious form with no cats and nearly everything else being a straight pipe. I made a topic on rennlist with all the results.
Beautiful channel and great work man. Key factors: - you need before n after dyno on same day and conditions (fuel amount n weight of the person..etc) on that dyno even the fan directions n speed always revised from what I’ve experienced with dyno operators every month or so. - you need a tune with porsches ecu relearn in new models are extreme preventive. Do a tune especially headers replacement. - in terms of performance its an N/A can’t expect big numbers especially with porsche that are so well tuned from oem to be in high produce engine power numbers …. A bolt ons giving around 30-40bhp is realistic but thats including a tune for sure
Thanks 🙏. Yea, difficult to get everything done in one day. To be fair, I may have been a little harsh as think they link pipes gave about 5-10 bhp. Got headers going on next week. Will test them later. It’s a rough figure for sure.
@@heelntoe1904 ok maybe not enough .. the engine seems to be completely fully powered after 10000kms .. in addition i doubt that changing the full exhaust without reprog could be efficient in terms of powers increasing … my 2 cents view :-)
Suspect the cooling was a bit lacking especially blowing air into the side scoops. The dyno plot looks abnormal with the jump at the end, mine on a MAHA doesn't look like that at all. FWIW mine did 430 BHP stock. 449 BHP with catless manifolds and link pipes. 460 with an aftermarket exhaust added to it which made it ungodly loud and annoying to drive. Adding a software tune got it to 470 BHP corrected to SAE. But the tune is helping out quite a bit on track there seems to be less derating as it's putting more fuel in which cools the combustion chamber. On the Nurburgring my top speeds were significantly higher than what I've seen from stock cars. I added 200 cell cats into the link pipes. This took care of the nasty smell but still left the car loud and harsh sound wise.
Fair comments. They’ve been fairly accurate on the other cars that I’ve tested. I presume catless is the main improvement? What is SAE? I have soul headers ordered.
@@heelntoe1904 Just a different correction factor, should read a tiny bit lower then DIN which was used on your run. Biggest gains probably the headers and then the rear box. There was quite a bit more power with the Soul valved exhaust vs the stock box over a pretty wide RPM band. I was using Soul race headers as well. There's something in the over axle pipes but I'm pretty sure it's the smallest gain out of the 3 big pieces. I went to the dyno about 5 times. The car once hit 465 BHP without a tune (+35 over stock) but that was in the most obnoxious form with no cats and nearly everything else being a straight pipe. I made a topic on rennlist with all the results.
Yes thanks. Seen the article. Good work 👍🏼
Hi mate, did you have the CEL on with these pipes fitted?
Yes, reset ecu required.
Beautiful channel and great work man.
Key factors:
- you need before n after dyno on same day and conditions (fuel amount n weight of the person..etc) on that dyno even the fan directions n speed always revised from what I’ve experienced with dyno operators every month or so.
- you need a tune with porsches ecu relearn in new models are extreme preventive.
Do a tune especially
headers replacement.
- in terms of performance its an N/A can’t expect big numbers especially with porsche that are so well tuned from oem to be in high produce engine power numbers …. A bolt ons giving around 30-40bhp is realistic but thats including a tune for sure
Thanks 🙏. Yea, difficult to get everything done in one day. To be fair, I may have been a little harsh as think they link pipes gave about 5-10 bhp. Got headers going on next week. Will test them later. It’s a rough figure for sure.
How many kms has your car ? And did you made a proper écu engine setup ?
About 4.5k miles. No ecu changes. These products are sold as stock without the need of ecu updates.
@@heelntoe1904 ok maybe not enough .. the engine seems to be completely fully powered after 10000kms .. in addition i doubt that changing the full exhaust without reprog could be efficient in terms of powers increasing … my 2 cents view :-)
You have a point. I’ll test again after a few thousand miles..