Supercharger Discussion For all you misguided souls.
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Old 03-29-2014, 05:55 PM
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Just because I like fanning the flames of all the SC haters, here's my latest dyno on my supercharger setup, with E85/Pump gas results:

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Old 03-29-2014, 06:07 PM
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ewwwww Hydra

do you have the dyno files?
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Old 03-29-2014, 06:09 PM
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your car is a dream - all the things I want (minus the supercharger)

ABS, traction control, yellow paint
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Old 03-29-2014, 06:10 PM
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Originally Posted by soviet View Post
ewwwww Hydra

do you have the dyno files?
Better than the AEM I used to run. ;-)

Nope, it was 11pm in Portland when we finished up and I had to drive back to Seattle that night. Getting the dyno files was last on my priority list.
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Old 03-29-2014, 06:12 PM
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Well, can you have the shop email them to you? thats what I've always done!
And I thought everyone loves AEM. Do you run a flex fuel sensor?
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Old 03-29-2014, 06:13 PM
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Hated the AEM...

Yeah, flex fuel sensor. I put whatever gas in I can find and the car just works. It's a pretty noticeably huge bump when I go from 92 to E85 though...
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Old 03-29-2014, 06:22 PM
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very nice.

one of the few sc setups worth talking about.

you're not fanny any flames btw, since this is one of like 5* setups ever that makes this sorta power.

*: or whatever the tiny number is
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Old 03-29-2014, 06:37 PM
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Originally Posted by codingparadox View Post
Hated the AEM...

Yeah, flex fuel sensor. I put whatever gas in I can find and the car just works. It's a pretty noticeably huge bump when I go from 92 to E85 though...
Do you blend between 2 maps or just linear fuel/spark adjustment?
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Old 03-29-2014, 06:50 PM
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The Hydra just linearly interpolates between the two maps depending on what the flex fuel sensor is going through the fuel system. So I have the pump map at E11 or so, and then the high map at E73.
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Old 03-29-2014, 11:30 PM
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Damn, you were 5 minutes from me. Still haven't been to that dyno, how was it? Nice guys? Good prices? Reasonably smart tuners?
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Old 03-30-2014, 03:15 AM
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So the dyno is owned by a nice old guy, but Kris Osheim (KORacing) was the tuner who was working on my car. He has an arrangement with the dyno operator where he can rent it out and tune on it. Kris knows a lot, especially if you're on a Hydra -- he's been a Hydra dealer for MR2s for over 10 years.
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Old 03-30-2014, 06:07 PM
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Originally Posted by codingparadox View Post
Hated the AEM....
...and the last Hydra I played with had an intermittent misfire we traced back to the box itself, and it was only solved when we dumped the system for an EMS-4. Different people have different experiences
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Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
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Old 03-30-2014, 07:00 PM
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^^I could be wrong, but I thought I read his issues had more to do with getting a trigger wheel to work with the AEM, than the AEM itself per se.
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Old 03-30-2014, 07:19 PM
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Well, I not only hated how the AEM just refused to work with the trigger wheel, and I just had no recourse, but I really didn't like their software either.
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Old 03-30-2014, 10:25 PM
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You need to quit making me spend money on my car. My kids aren't going to be able to go to college.
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Old 04-01-2014, 12:45 PM
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I saw the title and was expecting a rotrex setup.
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Old 04-01-2014, 12:46 PM
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Nope, just a nice flat torque curve, not the utterly and completely useless garbage that is a centrifugal.
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Old 04-01-2014, 01:02 PM
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Originally Posted by codingparadox View Post
Nope, just a nice flat torque curve, not the utterly and completely useless garbage that is a centrifugal.
Easy fella.....
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Old 04-01-2014, 01:05 PM
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For a track only car, and if you can make sure the car lives at the very top end (as in, you have a non-factory transmission with close ratios), go for it, though on a track I'd still take a turbo over it. For anything else, your torque below 5k isn't super awesome.
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Old 04-01-2014, 01:29 PM
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Originally Posted by codingparadox View Post
For a track only car, and if you can make sure the car lives at the very top end (as in, you have a non-factory transmission with close ratios), go for it, though on a track I'd still take a turbo over it. For anything else, your torque below 5k isn't super awesome.
Motor never sees sub 5k on the track. Most times it's above 5.5k. Clearly the Rotrex can have a "nice flat torque curve" and is not "completely useless garbage that is a centrifugal"
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