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  • Carl Morris's Avatar
    Today, 09:04 PM
    Carl Morris replied to a thread N54: Pump gas tuning fun in N54, N55, N52
    Yeah, I'm using the "Load Target Limit Factor (Charge Air Temp)" table to avoid having the boost rise with heat. I'm also derating the timing pretty early as the temperatures rise as well to compensate for the timing rising as the load is reduced. But I still think it would be easier to just target boost instead of load. But I can see from this experimentation that with straight ACN91 I should consider a cold air intake. I start a long pull at 70F and end up at over 100F by 4th gear. With an ethanol mix I don't need to pull any timing and the hotter air is no big deal. But power falls off pretty fast on pump as I pull out boost AND timing. Summer is going to be bad.
    4 replies | 333 view(s)
  • shadow032's Avatar
    Today, 08:53 PM
    Hey guys, I'm currently attempting to build an NA M54B30 on a budget. Building engines is currently not a skill I have mastered and I'm going far and wide outside my comfort zone, learning as I go. I've got the block bored to 84.5, balanced new pistons, gaped the piston rings, plastigauged the bearings, the whole 9 yards. I have researched pretty much everything that I think I need, except the valve spring options and cross compatibility between the M5x engines family, since online information is scarce. I'm trying to figure out how valve springs rates relate to valve float at high rpm in these engines and what is high rpm for the M54 engines. I've seen claims that stock m54 valve springs are good for around 7000+ rpm. Also, I've read that the M50 non-vanos engines supposedly had stiffer valve springs. Recently I found a local place that offered me a regrind of my original B30 cams, which got me thinking about supporting valve train upgrades (budget ones). Can you please share some experience and opinion on whether or not I need to upgrade my valve train in order to run 264 camshaft at 7000-7200rpm without valve float. :awesome: If stiffer valve springs are needed, is it possible to use a spring set from a M50 non-vanos? :confused: Also, I read that stiffer springs might lead to more stress on the valve train and a lazy revving engine. Any thoughts? Thanks guys, Jeff
    0 replies | 1 view(s)
  • AdminTeam's Avatar
    Today, 08:33 PM
    Welcome to a real enthusiast forum pjkim.
    0 replies | 0 view(s)
  • Sticky2's Avatar
    Today, 08:22 PM
    Sticky2 replied to a thread B58 JB4 Dyno Testing in S55
    Wrong forum Terry, will move,
    1 replies | 7 view(s)
  • Terry@BMS's Avatar
    Today, 08:04 PM
    Terry@BMS started a thread B58 JB4 Dyno Testing in S55
    Spent a few hours this am with Steve on the dyno dialing in some firmware changes for his S58 2020 X4M. Initially on 91 octane then Steve poured in some E85 to get it up to E47. So much tuning potential on these! Can't wait until the S58 finds its way in to the new M3. Typo in the subject. :)
    1 replies | 7 view(s)
  • karel's Avatar
    Today, 07:49 PM
    Thanks so much :) its acutally not that expensive as many think :) but i do have really good partners that help with this :)
    33 replies | 1668 view(s)
  • Sticky's Avatar
    Today, 07:34 PM
    This is just ridiculous. Great to see more Dynojet results for the new S58 motor. The baseline is at the rear wheels (expect lower AWHP figures) on 91 octane pump fuel. Peak figures of 488 wheel horsepower and 445 lb-ft of wheel torque are not too shabby and the S58 is clearly underrated. Add in a flash tune and splash in some ethanol for an E30 blend and the numbers skyrocket: 612 horsepower and 581 lb-ft of torque tune only this early is insane. BMW clearly wanted to make a statement with the S58 and they left plenty on the table for tuners. What kind of numbers will hybrid turbos produce? 800+? Bring on the G80 M3 already BMW!
    0 replies | 94 view(s)
  • Sticky's Avatar
    Today, 07:30 PM
    This is just ridiculous. Great to see more Dynojet results for the new S58 motor. The baseline is at the rear wheels (expect lower AWHP figures) on 91 octane pump fuel. Peak figures of 488 wheel horsepower and 445 lb-ft of wheel torque are not too shabby and the S58 is clearly underrated. Add in a flash tune and splash in some ethanol for an E30 blend and the numbers skyrocket: 612 horsepower and 581 lb-ft of torque tune only this early is insane. BMW clearly wanted to make a statement with the S58 and they left plenty on the table for tuners. What kind of numbers will hybrid turbos produce? 800+? Bring on the G80 M3 already BMW!
    0 replies | 5 view(s)
  • AdminTeam's Avatar
    Today, 07:29 PM
    Hey shadow032: :text-welcomewave:
    0 replies | 3 view(s)
  • Sticky's Avatar
    Today, 07:18 PM
    Independent 1/4 mile times are the way to go in order to get an accurate performance assessment. In this case a completely stock new BMW F92 M8 Competition is running the new Ford Shelby GT500 which has its passenger seat removed and a resonator delete. This should be a pretty good matchup on paper with the GT500 having the stronger top end. The M8 obviously benefits from all wheel drive. The weight between the two is close but the GT500 has a dual clutch box sending power to the rear wheels. A red light (the first of three) for the M8 but the GT500 does start to chase it down. Impressively the GT500 is quicker and faster despite the worse 60 foot: They hook better on the second run but the GT500 wins again: The GT500 clearly shows it is the quicker and faster car. That built in line-lock sure is handy.
    0 replies | 125 view(s)
  • Sticky's Avatar
    Today, 07:10 PM
    Independent 1/4 mile times are the way to go in order to get an accurate performance assessment. In this case a completely stock new BMW F92 M8 Competition is running the new Ford Shelby GT500 which has its passenger seat removed and a resonator delete. This should be a pretty good matchup on paper with the GT500 having the stronger top end. The M8 obviously benefits from all wheel drive. The weight between the two is close but the GT500 has a dual clutch box sending power to the rear wheels. A red light (the first of three) for the M8 but the GT500 does start to chase it down. Impressively the GT500 is quicker and faster despite the worse 60 foot: They hook better on the second run but the GT500 wins again: The GT500 clearly shows it is the quicker and faster car. That built in line-lock sure is handy.
    0 replies | 7 view(s)
  • Sticky's Avatar
    Today, 06:57 PM
    I mean, this is the Tial Hardware maxed out. If I were to go bigger I'd build the motor but this is probably the stock internal limit. We really don't know but so far to go and I intend to keep it here. I may upgrade the fuel system so I can run 100% E85 all the time.
    6 replies | 408 view(s)
  • quattr0's Avatar
    Today, 06:54 PM
    Safe tho? Or just a few runs a year at this level? Nice number!!!
    6 replies | 408 view(s)
  • AdminTeam's Avatar
    Today, 06:53 PM
    Welcome to a real enthusiast forum Olza.
    0 replies | 5 view(s)
  • Sticky's Avatar
    Today, 06:53 PM
    The top mount twin turbo Audi 4.0 EA824 V8 features a twin scroll turbo manifold design. If you do not know what a twin scroll turbocharger design does or how it works click here but the idea is for the turbocharger to get extra exhaust pulses in one housing. CTS Turbos is designing their single scroll manifolds for the 4.0 TFSI V8. The idea obviously is to go for maximum power at the sacrifice of some spool and response. In theory this should also allow some additional turbocharger choices. For now though, this is theory as CTS Turbos does not have a working example of their manifolds with the Garrett CHRA combos mentioned: Certainly something to watch and hopefully an update on the progress comes soon.
    0 replies | 71 view(s)
  • Sticky's Avatar
    Today, 06:45 PM
    The top mount twin turbo Audi 4.0 EA824 V8 features a twin scroll turbo manifold design. If you do not know what a twin scroll turbocharger design does or how it works click here but the idea is for the turbocharger to get extra exhaust pulses in one housing. CTS Turbos is designing their single scroll manifolds for the 4.0 TFSI V8. The idea obviously is to go for maximum power at the sacrifice of some spool and response. In theory this should also allow some additional turbocharger choices. For now though, this is theory as CTS Turbos does not have a working example of their manifolds with the Garrett CHRA combos mentioned: Certainly something to watch and hopefully an update on the progress comes soon.
    0 replies | 48 view(s)
  • Sticky's Avatar
    Today, 05:41 PM
    Porsche is being praised for their Super Bowl commercial which somewhat comically was released well before the Super Bowl. These days you can get tons of views for your Super Bowl ad without people even needing to wait to see it during the game. That is the power of Super Bowl advertising and while the ad is pretty cool it seems Porsche fans studied it quite closely and found something. At the :43 mark you see a blue 911 that appears to be the new GT3. The wing certainly matches test mules. Just a small teaser but cool to see it in what is a fun Porsche ad.
    0 replies | 91 view(s)
  • Sticky's Avatar
    Today, 05:33 PM
    Porsche is being praised for their Super Bowl commercial which somewhat comically was released well before the Super Bowl. These days you can get tons of views for your Super Bowl ad without people even needing to wait to see it during the game. That is the power of Super Bowl advertising and while the ad is pretty cool it seems Porsche fans studied it quite closely and found something. At the :43 mark you see a blue 911 that appears to be the new GT3. The wing certainly matches test mules. Just a small teaser but cool to see it in what is a fun Porsche ad.
    0 replies | 4 view(s)
  • subaru335i's Avatar
    Today, 05:32 PM
    Hmm I might have to get this. That does seem reasonable
    2 replies | 634 view(s)
  • subaru335i's Avatar
    Today, 05:31 PM
    At this point I feel like I would be scared to drive around with this much torque for fear of bending rods...
    1 replies | 123 view(s)
  • AdminTeam's Avatar
    Today, 05:30 PM
    Welcome Tfairchild77, take a look around, I think you will like what you see.
    0 replies | 3 view(s)
  • AdminTeam's Avatar
    Today, 05:09 PM
    Bamofo, we appreciate you taking the time to join.
    0 replies | 10 view(s)
  • Sticky's Avatar
    Today, 05:01 PM
    PureBoost is a German tuner many of you are aware of. They work with MHD and suffice it to say their BMW F90 M5 S63TU2 tuning results using the MHD system are impressive. On E30 ethanol they managed to top 800 PS or metric horsepower. This is a MAHA graph. It is a conservative but popular and high quality dynamometer: They showed a peak of 1000+ newton-meters in subsequent runs but we did not get that full graph. 991 Nm translates to 731 lb-ft. Go further with torque and reliability concerns regarding the connecting rods arise. The torque curve is very nice as is the horsepower curve. They mirror the factory curves but with much more meat. Great to see custom tuning results using MHD on the platform and how robust the MHD system is becoming.
    1 replies | 123 view(s)
  • Sticky's Avatar
    Today, 04:57 PM
    Progress:
    5569 replies | 1783052 view(s)
  • Sticky's Avatar
    Today, 04:53 PM
    PureBoost is a German tuner many of you are aware of. They work with MHD and suffice it to say their BMW F90 M5 S63TU2 tuning results using the MHD system are impressive. On E30 ethanol they managed to top 800 PS or metric horsepower. This is a MAHA graph. It is a conservative but popular and high quality dynamometer: They showed a peak of 1000+ newton-meters in subsequent runs but we did not get that full graph. 991 Nm translates to 731 lb-ft. Go further with torque and reliability concerns regarding the connecting rods arise. The torque curve is very nice as is the horsepower curve. They mirror the factory curves but with much more meat. Great to see custom tuning results using MHD on the platform and how robust the MHD system is becoming.
    1 replies | 5 view(s)
  • subaru335i's Avatar
    Today, 04:30 PM
    GTR's are cool but I agree they are kinda over rated. They used to be the affordable supercar killer and monster tuner car but really anything over mild bolt ons where you start to risk the stock tranny is not worth it to me. The new 991.2's and older Turbo's are much much more appealing to me and the drive train can take a beating stock. Also, new GTR's price keeps creeping up. In 2008 they were a deal at $69k but now $113k base or $210k for a Nismo!
    18 replies | 654 view(s)
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