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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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#15 | |
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I know the OP understands that but it bears pointing out for others that read this.
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middle = Ace + tune top = Ace + tune + flex No other powertrain mods. ![]() Half the gains of a SC, for half the price, with none of the complexity. One is shoving air into an engine and increasing stress. The other is increasing efficiency. The best part, is that the two can, and is often, stacked together for even more gains. |
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On our PTUNING 4-1 Header we regularly see approximately 200WHP. This is a customers car that is bone stock with just our header and an Ecutek dyno tune
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@CSG Mike
Thanks for your input. Those are big gains, Im assuming from an ACE 350? Call me picky, but the dip is still between 3500-4500. About 8ftlbs. Could it be possible to tune 150+ from 3500-5000 and level the HP from 6000-7000? Peak at 185HP? (93 pump) I dont know the limitations of tuning and how malleable those lines are. Or are these questions for the guy with a laptop?
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At any speed above 20mph at WOT you should never really be under 5,000rpm just downshift. Low end is either getting off the line in 1st. Or daily driving and that torque curve would pretty much be best as far as headers go for either scenario. |
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N/A is never smooth if fully optimized. I'm sure they'd happily flatten that bump for you, but then you miss on the peak gains (61ft/lbs on e85... at 4700rpm where you'll love it). Note it's again about the same above that bump. So not a dip anywhere, just a couple peaks, likely due to the tuning frequencies of the header. That is the Ace 350 I believe, and its the best midrange gains easy to find any more. There are headers (including from Ace) with better peak power but lower gains down low. C
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Also, the gas tunes are on ACN91, so you can expect better results on non-AC91, and even higher results on 93. Power can always be detuned to be flat, and detuning is done quite often when tuning race cars that want a specific power-weight ratio, where powerband is not mandated. |
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how are dynos in USA always put crazy values
when we in italy almost every dyno put around 133whp bone stock with 100Ron and you are lucky to get 160 whp with a catless EL header with 100Ron ecutek tuned |
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Decat OEM header with catless 2.5" exhaust, 98ron
Everyone has a dyno plot Don't sweat the peak Oh, and... ![]()
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honestly choose between Ace & Ptuning. Those are the best options, and don't expect a "flat" torque curve, those only happen with forced induction. If you can take a trip to have one of the other dyno tuned, that is the one you should choose.
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If you are interested in a PTUNING header then we do have a group buy currently going on. PM me for more details
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I pictured tuning like moving a tent post under a tent. If you moved the peak, the immediate area around it would tapper off each end. But I guess thats a camshaft thing? But from what I hear, tuning is about pushing each peg as far up as possible without the peg getting pushed out. And the total engine determines the length of each peg.
Then Im looking for 150ftlbs from 3-5000rpm on 93. Kinda like this. And Im pretty sure thats all down to which header I put on. ![]()
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RaceComp SS-1, Complete SuperPro bushings, TR Motorsport FF10 17x9 +45, GruppeS UEL, HKS Hi-Power V2, OFT(93/E85) Last edited by Westen86; 05-30-2019 at 10:39 AM. |
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catless, dyno, header, torque, tuning |
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