Soon

"BJohnson11" (brettjohnson01) 02/20/2014 at 02:04 • Filed to: None

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FSAE car is almost ready. Should be driving before the end of the weekend. Some NSFWert in there too.

Insides of the exhaust I fabbed up. This exhaust is just carbon steel and was really made for mock up and our dyno. Can't wait to get the stainless in to make the comp exhaust.

Also, I'm taking guesses on how much hp our Yamaha YFZ450 made on our engine dyno. Keep in mind, per FSAE rules, we intake air through a 20mm restrictor.

YSI-what can brown do for you > BJohnson11 02/20/2014 at 02:06

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I should join my FSAE team. Although, I feel like I would be useless. Although, I might not. . . who knows.

BJohnson11 > YSI-what can brown do for you 02/20/2014 at 02:15

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There's typically a spot for everyone on the team. Between the engineering/building of the car to the business side and presentations involved with the team/competition, we welcome people from all backgrounds and majors onto the team.

Boxer_4 > YSI-what can brown do for you 02/20/2014 at 02:18

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If it's anything like the SAE team I'm on, it doesn't really matter how mechanically inclined you are. You sort of learn as you go. Before joining, I had never really done any major mechanical or fabrication work. This season is my 2nd on the team, and in the last year and a half, I've learned a lot.

jdrgoat - Ponticrack? > BJohnson11 02/20/2014 at 02:20

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20mm, so you're running gasoline. I see no turbo. I do think I see a fuel rail, which tells me fuel injected.
I will make a quick guess of... 37.8hp

Is that an Eaton differential? Which competition are you going to?

BJohnson11 > jdrgoat - Ponticrack? 02/20/2014 at 02:23

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Yea, we're running 110 octane race fuel. And we made 49 on our dyno. With a couple more weeks of tuning we can break 50. The YFZ is a beast.

Differential is a torsen unit with a custom housing.

We're going to Detroit this year. We went to Nebraska last year and experienced major engine issues and never did live up to the cars potential. We kept our carbon tub, remade the rear subframe to accomodate the new engine, but by rules, not we cant go back to Nebraska.

Boxer_4 > BJohnson11 02/20/2014 at 02:26

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It's nice to see the different SAE competitions on Oppo. Our Supermileage car needs a fair bit of work yet, but at least we have until June.

BJohnson11 > Boxer_4 02/20/2014 at 02:29

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God our supermileage team amazes me. They go through one 5 gallon tank of gas each year. The fuel tank is TINY. I'm sure your team is the same. If I remember correctly, their car gets something like 2000+ mpg. Nuts.

jdrgoat - Ponticrack? > BJohnson11 02/20/2014 at 02:55

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Ah, I was thinking 93. Pretty sure the car a couple years before my senior year hardly broke 40 on E85. That was with a KTM 525, 510cc single. Ours was the third year of the engine, and with a turbo and intercooler we were over 70hp.

I was the drivetrain on our car, so I kind of pay an unnatural amount of attention to that area.

39 was my year. 83 was the year previous. Both of which also never lived up to their potential...

BJohnson11 > jdrgoat - Ponticrack? 02/20/2014 at 03:04

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We might just run 100 now that I think about it.

I'm the manufacturing lead for the team (basically just the lead fabricator/machinist) but I work a lot with the engine too. Last year we started off with a turbo on our old 450 (was a WR) and we made around 70 hp on the dyno running E85 but ran into oiling issues with the turbo. Those motors we had were old and tired (oldest was an 03, newest was an 08, and the engine at any given point was a frankenstien of like 3 different WRs) so we ponied up this year and got two 2014 Yamaha YFZ 450s. Great little engines. Super flat torque curve, slipper clutch, dry sump engine with an internal oil resevoir. So far, we're very pleased with them.

Those are some sweet looking cars though! Our team is finally getting an aero package this year, so that's pretty exciting news.

jdrgoat - Ponticrack? > BJohnson11 02/20/2014 at 03:18

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Your engines sound exactly like my school! We also had three of them, mainly frankensteins, and found out that the one we rebuilt and used at competition was actually a prototype! No way to confirm it, but we may have had the only prototype of that engine that ever left the factory.

And this year's team is moving up to the YZF 450, too. It will be fuel injected, turbo, and on E85 again. Wish I knew how they're doing on the dyno and in general.

Thanks for the compliments! Our 39 was the first for our school to have actual aero also. I see now that I chose a picture where you can't see it. There's an undertray with some nice diffusers on there. All simulated first, of course.
Believe it or not, that's also a thermoformed plastic body with a vinyl wrap, all done local to the school. The thermoformed seat had a woodgrain wrap, and we had a genuine hand-stitched leather headrest.

...man... the memories. We were a classy team.

Dirty Harry Callahan > BJohnson11 02/20/2014 at 07:17

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I see Poly is still using the Hanger. Pretty different from the FSAEs of my years. It's been a long time since I was in SLO. Mini Baja 02-04 here.

Lekker > BJohnson11 02/20/2014 at 08:40

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What university is this for? I was in my team at the University of Arizona. Man I cannot tell you how much fun it is to design, test and fabricate those cars.

tromoly > Lekker 02/20/2014 at 09:50

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Cal Poly San Luis, it looks like.

Lekker > tromoly 02/20/2014 at 09:54

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Good catch. Its only on almost every panel of the car. Derp.