maxsym 20 mm restricted power&torque curve

[jonny8]

has anyone got one? we are just assessing all possible avenues and the maxsym 600 is one of them.
cheers

[jonny8]

has anyone got one? we are just assessing all possible avenues and the maxsym 600 is one of them.
cheers

[Mustang Mac]

As of yet I am not aware of any teams running this engine. Have you looked into the cost? This is the main reason why!! I have some correspondence with them, and they where pretty helpful, so I recommend that you ask the via e-mail.

[Tony K]

Yea, take a look at the cost sheet and damn... It's perfect for the FSAE class, but since they're not giving them away, and probably not interested in any kind of real discount due to the fact that everyone wants one, I'm pretty sure you're not going to see them pop up at competition anytime soon. If anyone does drop that kind of cash though, they'd have a serious advantage assuming the rest of the car was decent.

[GTmule]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Tony K:
Yea, take a look at the cost sheet and damn... It's perfect for the FSAE class, but since they're not giving them away, and probably not interested in any kind of real discount due to the fact that everyone wants one, I'm pretty sure you're not going to see them pop up at competition anytime soon. If anyone does drop that kind of cash though, they'd have a serious advantage assuming the rest of the car was decent. </div></BLOCKQUOTE>

It's a nice engine, but I don't know about "serious advantage", it is, afterall, still all behind a 20 mm restrictor. I'm not saying I don't want one for our car, but I think think it's tthe be all and end all.

I wanna run a 6.5B (half a 13B)......THAT'd be aweseome...stupid rules.......

[jonno]

unrestricted power curves are available here (http://www.maxsym.com/gp500-600/documents/Powercurves.pdf).
Don't know if they have stuck a restrictor on yet, they were chatting about setting it up so basically FSAE teams buy a mapped ready to rock engine direct from them

[jonny8]

Jonno,

I have had a look at the unrestricted ones just hoping that they had done some 20mm ones; it would make sense as FSAE could potentially be a good market. The cost is still high though, you know of anyone who actually bit the bullet and will be running a maxsym?

[jonno]

Loughborough are considering it, but they are really concerned about the fierce price - you can basically buy two wr450's, equip them with a motec m400 buy all the components for the two wiring looms, fabricate intakes and exhausts and still have change from the money you'd be spending on the maxsym single

[Kirk Feldkamp]

Get a turbo. They're free! With the GT12 we make more torque almost across the board compared to this engine. And that's with the restrictor!

-Kirk

[Daves]

Their 600 cc only makes 85 hp? The F4i makes more than that for far less money. Even restricted, 85 hp from the F4i is not abnormal.

It appears that the main difference is the large amount of torque (and midrange power) from the maxsym (&gt;60 ft-lb).

[Kirk Feldkamp]

Those are N*m, not ft*lbs. It's making roughly 48ft*lbs. Nothing special, especially with a turbo. Now add the restrictor to the Maxsym. It's not a reasonable/cost effective FSAE motor.

-Kirk

[jonno]

I take it most of you have read the single cylinder thread. Whilst I agree the cost of this engine is mental, this is a light engine that makes reasonable power. The wr450 only makes 50hp or so on the bike with similar (possibly slightly better) torque to this, yet it won fromula student and i have a feeling RMIT on track at FSAE will terrify a lot of the 4 cylinder turbo gang. In a comp where you are only on max throttle for a very small proportion of the lap all that power ain't helping you.

[jonny8]

I believe they are working on an upgrade for the 600 that wil produce 110-115 bhp, not sure about torque though. Yeah theres nothing sweet about the price, god only knows what it will be like with the 'upgrade'.

[Garlic]

The engine is incredibly small and light for it's output. If you are just comparing outputs you are missing the point. The advantage is packaging and weight.

[Daves]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">The advantage is packaging and weight. </div></BLOCKQUOTE>

How are the packaging and weight an advantage over an F4i, Gixxer, or an R6? Are you considering installing the Maxsym without a transmission?

[Garlic]

Good lord man do you really have to ask that question? Compare the weights! Compare the size! have you seen one of these things in person? They're tiny.

6-speed sequential is integral-if you want it. Transmission options, as compared to a fixed transmission, can't hurt packaging or flexability, and I can't see you even coming close to the total weight of one of the I-4's. Hell people are removing gears from thier engines, the transmissions in any of those you listed are way overkill.

Or run a CVT, a simple clutch, there are lots of options.

[Mustang Mac]

Have to agree with Garlic. They are a lot lighter. I think 75 pounds with tranny and fuel system. 600 bike motors are a little pork compared to it. The whole point is having roughly the same power as a 600 I-4 with less weight and tighter packaging.