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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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11-20-2016, 02:05 AM | #43 | |
...Just add nauseum
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Theyre only 13 grams heavier than stock.. 4%. They'll rev just fine... but good luck running pump gas. This engine is already knock limited well before MBT. You'd have to hope the power rises more than the knock threshold falls, because you'll be pulling some timing no matter what. With E85 though? Ooh man that's a whole other ballgame. Speaking of revs, the oil pressure will give up sharply somewhere not far from 8250. Don't push it when you find it. The oil pressure limit is absolute.
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11-20-2016, 05:06 AM | #44 | |
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Part number is : 135WM
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12-13-2016, 06:00 PM | #45 |
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Can't wait to compare @celek 's ITB setup to this, as I would expect ITB's to be targeting the same goal but I'm not 100% about that. I've heard tuning for ITB's is more difficult but that's only stepping further into the abyss of the unknown to me.
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12-14-2016, 11:35 AM | #46 | |
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Should be fine for tuning. As for Daily use the problem with ITBs is how open they are to the elements with lack of filtration. This is something I have to work on.
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12-14-2016, 11:44 AM | #47 | |
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12-14-2016, 12:05 PM | #48 |
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I would like to see the results with a decent set of cams,,,,,
I just cant justify 3100 bucks for 12hp
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12-14-2016, 12:10 PM | #49 | |
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Didn't mean to thread jack, just interested in both options. Sent from my Pixel using Tapatalk |
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12-19-2016, 10:38 AM | #50 |
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I note with the Crawford blocks installed peak power still only comes in at 6700 rpm. I'd be keen to see what happens if they are removed as presumably the power may only peak a few hundred rpm higher, but within the factory rev limiter?
As in there may be no real need to rev to 8000, even if that is where the "resonance" is? Sent from my iPhone using Tapatalk |
03-06-2019, 07:30 AM | #51 |
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03-06-2019, 12:50 PM | #52 |
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Nah not yet. Car's been off the road for a while.. maybe in a couple of weeks. Going for a full rebuild, HKS turbo kit, E85, bigger injectors, 10.5 CR, titanium valvetrain.
Will easily double that dyno figure at any rate
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03-06-2019, 01:05 PM | #53 | |
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I decided that if I'm going to the trouble/wait/expense to have the engine out I may as well go to the dark side. Going for a decent build though.. HKS GT-IIIRS turbo kit Outfront closed deck FA20 JE Pistons 10.5 Carillo Rods HKS headgasket HKS Plugs HKS Fine Tune V Belt New OEM Crank(with "WPC" treatment) [ame="https://www.youtube.com/watch?v=jSiC7D8patU"]https://www.youtube.com/watch?v=jSiC7D8patU[/ame] King Race bearings ARP studs GSC Titanium valves and springs ID1100 TODA Racing Oil Pump Gear Billion radiator piping GReddy aluminium radiator filler neck Updated GReddy lightweight pulley KOYO Racing radiator + E85 New Exedy clutch
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10-15-2020, 01:56 PM | #54 |
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Bringing this thread back from the dead. The forum now has one more person crazy enough to do this. I just bought a JUN GT surge tank (manifold), and will post up some E85 dyno numbers from my race car.
If you are on E85, obviously you want to keep revving the motor, so this manifold should respond really well to E85/high compression. Not sure how high I will rev, but based on my gearing calculations for my 4.556 final drive, I really would like to go to 7900-8000 RPM to keep my same mph with my current 4.3 FD. That's ideal. Obviously I won't shift at 8K all the time, but it would be helpful to be able to stretch out the gear occasionally when needed on track. Plenty of people going to 7800, and some to 8000, so I'm not overly concerned, especially with a '15+ valvetrain. '17+ would be ideal, but that will be my next motor anyway. My take is, it's pricey, but is way easier to do/install than a +1 valve/head job, but seems to make the same power (or more), and can be removed and installed on any motor, so is a good investment if you are committed to NA and/or specific racing series, which I am. So making power past 7150 RPM (my peak), along with 4.556 gearing...that should make for fairly explosive acceleration to whatever redline is chosen.
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10-15-2020, 02:02 PM | #55 | |
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Is that an APR GTC200 you are running?
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10-15-2020, 02:14 PM | #56 | |
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