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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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01-29-2020, 09:52 AM | #29 | |
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I've got a pretty robust cooling setup as is with legit math-ed out ducting. Temps are in check NA, but with boost, I'd have to re-work some of it for sure. |
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01-29-2020, 11:49 AM | #30 | |
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Now if you could drag that out another 600rpm and still make 155wtq but at 7500rpm it would be 221whp. I think the only way to keep power up that high would be ITBs or maybe shorter runners on intake manfiold, and a ace150 header, together i could see those holding power to maybe 7200rpm or 212whp. Then toss in cams and some oversized valves and you could probably hold power to 7500rpm and make 220whp. to go any higher you would need more displacement I.E. stroker kit. |
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01-29-2020, 12:57 PM | #31 | ||
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01-29-2020, 12:58 PM | #32 |
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I like the stroker kit but dont trust aftermarket quality control. Be a real bitch to do all that work and then find out the crank wasn't plated properly.
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01-29-2020, 02:15 PM | #33 | |
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The oiling issues are another story. I'm pulling enough g load on hoosiers that I put an accusump back in the car, but I am still leery that I will have an issue at some point. Need to get an oil pan baffle and killer B pickup quickly from what I am told. And there are still no guarantees with those three precautions... |
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01-29-2020, 06:10 PM | #34 | |
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01-29-2020, 07:09 PM | #35 | |
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There are more things that can be done to help airflow. Look at what headers do to the torque dip, that is pretty obvious to everyone. So with that in mind there is more that can be done but there is a balance between optimal vacuum and smooth unrestricted flow into the engine. Getting the correct ratio (with particular parts) is what will make power and of course dialing in ideal I/E cams angles, DI/PI angles for smooth airflow is what makes this all work. That is what we are working on and to see to what level we can maximize it. I personally enjoy tuning NA cars over FI cars, because there is was may of an art and understanding needed to make things all work perfectly. FI, just add more boost and better gas, done. Are there limitations, of course, but we have seen what is reliable on a forced induction vehicle, so I do not think rods, or pistons are going to be an issue here. Valvetrain and oil pressure are the only real concerns, so we are watching those a bit more closely. We have a couple engines we are testing in house, so you guys don't have too. Cheers, William Knose Delicious Tuning |
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02-03-2020, 12:48 AM | #36 |
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Based on previous threads ITB's generate the most excitement on this forum for people staying NA even if they do little for performance people want trumpents on their boxer engines.
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02-03-2020, 08:38 AM | #37 | |
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02-03-2020, 12:09 PM | #38 | |
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They seem to work with trumpets but only kinda work with the supplied plenum.. Solid is complete Greddy ITBs and dotted is stock intake. [/IMG] Last edited by PulsarBeeerz; 02-03-2020 at 12:31 PM. |
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02-03-2020, 12:32 PM | #39 |
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02-03-2020, 10:01 PM | #40 |
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ITB's are on my long list. they make me feel warm and fuzzy.
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02-04-2020, 06:03 AM | #41 |
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02-04-2020, 07:22 PM | #42 | |
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Cheers, William Knose |
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