Recent content by brettus8

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    What batteries are you using?

    Yep
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    What batteries are you using?

    It is the same guy, lol . He mentioned talking to someone else and I figured it must be you!
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    What batteries are you using?

    Interesting ... you've gone for high voltage and low capacity batteries whereas many others on here are doing the opposite (50V 40Ah) . I went down the middle with 50V 20Ah to keep my weight down (about the same as yours). One thing worth mentioning, here in NZ there are more stringent...
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    RX8 Renesis Rotary eSC

    Thanks .... the mass airflow numbers actually line up perfectly with the compressor Flow map Alex recently updated too! Renesis flow in purple from 3500rpm to 8500 Also : I think I found the limiting values for the hobywing max 4 ESC . It trips out when over 300A for more than 4.5s (approx)...
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    RX8 Renesis Rotary eSC

    After fitting a larger drive wheel and upping the voltage I started getting the issue seen below. Wild MAF sensor swings and an odd noise from under the bonnet. Spent the last day trouble shooting. Tried retiming the ssv valve, changing the water injection amount etc etc and was running out of...
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    Shmedium size positive displacement blower span by a Castle 2535? I know, I know…

    It actually isn't important at all on my particular setup (13B rotary with P2). Below 7000rpms and full throttle there isn't enough restriction to make any difference in power. If you think about the system as a whole, the only restriction that makes a difference right up to that 7000rpm wide...
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    Shmedium size positive displacement blower span by a Castle 2535? I know, I know…

    FWIW Alex has tested his v8 to measure loss in performance with the P2 not running, and found it's significant. I've done similar tests on a smaller engine (13b rotary) and found the losses below 7000 rpm were inconsequential and only became an issue above that, somewhere around 25lbs/min of...
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    S2000 Rotrex + Electric Motor

    I've set up my system to kick in at a throttle position where the engine makes it's max NA power (this is way less than 100% open). I found that doing so any earlier just wastes electrical energy and runs you out of juice too soon. Hope that helps. Also: just watched your you tube video .... my...
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    SteveB from Florida

    Welcome to the forum. Look forward to seeing your system and results
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    RX8 Renesis Rotary eSC

    Hamilton NZ which is at 40m above sea level.
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    RX8 Renesis Rotary eSC

    There is some voltage leeway on the Max. 4 ............... something I've discovered :LOL:
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    RX8 Renesis Rotary eSC

    When I specd. everything I was only aiming for an extra 30-40whp and anticipating around 250A. But you know ..... 'moar powa baby' kicked in and It's actually at 360A and pretty much everything is on the small side. The batteries themselves are only 20Ah LTOs as I wanted to keep the weight down...
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    RX8 Renesis Rotary eSC

    Put Bluey on the dyno today . Was hoping to break 300whp but didn't quite get there. peak power of 282whp with impressive (for a rotary) midrange torque of 204lb/ft. Note to boost decline 6.5 down to 4psi at peak which was a little disappointing. Black trace on dyno was same car N/A so an...
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    The junkyard approach

    It struck me watching that video that are lot of guys are missing another huge benefit in running the P2 SC. It barely restricts any flow to the engine at airflows below approx. 190g/s (25lbs/min). I have proven this on my engine, a13B rotary which consumes approx. same amount of air as a 3.3L...
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    Add 3-4psi to 1.6l

    Look into the Torque Amp system from Sweden.
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