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Forced Induction Turbo, Supercharger, Methanol, Nitrous |
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07-16-2021, 08:53 AM | #29 |
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07-16-2021, 09:03 AM | #30 | |
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You decide what level of risk you are willing to take as the owner when modding especially when adding FI to an NA engine, by having the torque curve that he has he is essentially adding more stress to the rods/engine for little to no real return especially compared to running a more modest flatlined torque curve and actually making more power top end. No one is saying the tune is bad and going to blow his engine because of a bad tune. but OP is concerned and doesn't want to take unnecessary risk since going FI already has a great inherent risk and that can be mitigated some by changing and tweaking the powerband and delivery. |
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The Following User Says Thank You to 86TOYO2k17 For This Useful Post: | BrahmaBull1990 (07-20-2021) |
07-20-2021, 01:28 PM | #31 | |
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He should talk to the tuner and ask some questions and have the tuner talk him though what he did and why. Those guys are gear heads too and usually happy to educate the customer to alleviate anxiety. I have a buddy with a Cadillac that tweaks his own tunes. There's a lot to understand and I can barely follow his explanations of some things as I just don't know the terms. I agree on the risk and working to mitigate it, but I think I'd put it on a tire dyno or talk to my hub tuner to learn more first. |
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The Following User Says Thank You to jeepmor For This Useful Post: | BrahmaBull1990 (07-20-2021) |
07-20-2021, 01:52 PM | #32 | |
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"Originally Posted by 86TOYO2k17 View Post If this is/was in fact true then your HP is proportionally much lower as well. if you are saying at 220WTQ you are really making 185WTQ then around 7k at peak WHP applying that same logic you are only really making about 158WTQ or 210whp at 7k rpm." his problem statement is essentially why is he making so much more power specifically torque in the mid range vs the advertised dyno numbers, the answer is he is custom tuned and not carb tuned. . Now his follow up is he is concerned with having so much WTQ. Solution lower the WTQ in mid range. He can also most likely optimize top end, rev the car out near redline and actually make more WTQ across the useable powerband while making less low/mid torque and peak torque to actually have a faster car overall that is also simultaneously a safer/more reliable tune. As I advised he needs to talk to his tuner about this, the tweaking of the mid range torque can easily be done to turn it down if he is concerned with so much mid range WTQ (which is what snaps rods btw), whether or not the top end has more room to be optimized safely without knock he needs to sort with his tuner, he may also be able to add supporting mods he doesn't already have to aid in keeping the top end up as I already mentioned. |
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The Following User Says Thank You to 86TOYO2k17 For This Useful Post: | BrahmaBull1990 (07-20-2021) |
07-20-2021, 08:56 PM | #33 |
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Really great responses; thank you all. The car has been great and I’m not a driver to lay into the throttle, so I’ve been keeping with my driving style of rolling slowly into the throttle and not hammering it until over 4k.
I also make a practice of not going over 1/4 throttle when under 3k unless I downshift. The car has felt really good, so I’m leaving it for now. I did just add a Forester oil cooler and a PCV catch can. So I feel more confident when pushing it a bit now. Again, thank you all for the replies!
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There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
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The Following User Says Thank You to BrahmaBull1990 For This Useful Post: | Brz-123 (07-29-2021) |
07-29-2021, 04:27 AM | #34 | |
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Throttle pedal mapping is also key as pressing quarter throttle can give you all the torque if they have mapped it that way. The new GR 86 is supposed to go WOT on half throttle while BRZ is mapped linearly. Oil cooler is a safety add but is primarily useful only for track days as on public roads, you rarely overheat the car and hence the oil. Over the next few months do let us know how much your oil catch can collects! Sent from my SM-G781B using Tapatalk |
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The Following User Says Thank You to Brz-123 For This Useful Post: | BrahmaBull1990 (07-29-2021) |
07-29-2021, 09:59 AM | #35 | |
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There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
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The Following User Says Thank You to BrahmaBull1990 For This Useful Post: | Brz-123 (07-29-2021) |
08-27-2021, 01:25 AM | #36 |
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I would highly highly suggest getting a re-tune from Zach at Counter Space Garage. He has been tuning boosted 86/BRZ of all sorts since they came out. He used to be the lead calibrator for delicious.
He just finalized his remote tune after datalogging I did for him for a few weeks straight. He purposely has lower torque and boost under 3500-4000rpm, that's intentional to save the engine. Boost (and therefore torque) comes on much more powerful between 3800-4500 and pulls straight to redline. If you want I can post some clips later OH, I'm also getting my 4.875 FD gears finalized in my diff tomorrow which I would highly recommend considering for your car if you want a bit more oomf around town. I ran 4.56 gears from Weir Performance for around 5 years on my FRS before I sold it and got the BRZ with the Edelbrock. Shorter gears would allow you to have more torque available all the time anywhere, completely makes the car feel more eager and it doesn't greatly negatively impact your RPMs. When I was on 4.56 gears on 17" wheels, 80mph was 4K RPM in 6th. Completely fine for highway driving imo. I'm just a mad lad and want slightly shorter gears with the BRZ Here is an example of Edelbrock, 4.88 FD and E85 (Not my video) but convinced me to get 4.88 86/BRZ use the same FD gears as the 3rd gen supra: http://www.weirperformance.com/finaldrivegears.html Tunes are what blow up engines, I would get it retuned by Zach: https://www.counterspacegarage.com/p...ota-86-brz-frs
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08-29-2021, 11:46 PM | #37 |
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__________________
There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?
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09-07-2021, 02:13 PM | #38 | |
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The Following 2 Users Say Thank You to Hurricane Nate For This Useful Post: | BrahmaBull1990 (09-07-2021), CSG Mike (09-07-2021) |
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