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Honda motorcycle engine + 034efi + open wheeled racecar

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 Post subject: Honda motorcycle engine + 034efi + open wheeled racecar
PostPosted: Tue Jul 13, 2004 8:14 pm 
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mach 2 with my hair on fire

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Just thought I'd say hi to everyone. I've been working with Javad and buggin Jim Green, a local autoxer with me, about the 034efi system. Javad has decided to sponsor the University of Colorado. We will run the 1C system on our 600cc Honda F4i motorcycle engine. We take part in a collegiate design series sponsored by SAE. The motor is limited to a 20mm intake restriction so the stock engine management does not work very well for our needs. It should be exciting to see the capabilities of the 034 system!

http://ucec.colorado.edu/~sae/index.html

Preston

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PostPosted: Tue Jul 13, 2004 8:30 pm 
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Cool! Good luck with it, the 034EFI system looks to be a lot easier to deal with than the Motec M4 we use/used...Should work out pretty well.

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PostPosted: Tue Jul 13, 2004 8:41 pm 
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Thanks! It seems more powerful than the piggy back systems and some of the other basic systems used. Yet not as complex as the motec stuff out there. I'll keep you posted on the progress.

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PostPosted: Tue Jul 13, 2004 10:09 pm 
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Hey Preston glad to see you here. When do you guys plan on installing the system?

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PostPosted: Wed Jul 14, 2004 5:42 am 
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As soon as we get it I think we will start the implementation. We have a motor on a stand that is torn down and waiting to go on the engine dyno. We have to finish a jig for the dyno and rebuild the motor and it will then serve as our test motor for the 034.

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PostPosted: Thu Nov 04, 2004 11:19 pm 
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mach 2 with my hair on fire

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Update on the project. The motor build is almost complete and wiring is almost complete as well.

Here are some pics:

https://www.motorgeek.com/index.php?page ... _album.php

Its going to be fun when its up and running. Can anyone say 15k redline?

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PostPosted: Fri Nov 05, 2004 12:34 am 
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bah, I see 15,500 every day(except for the recently cold ones) on the R6.......LOL

All the other 600's got 15,000 Rpms....i'll chalk it up to conservative honda... good thing you can set your own RPM limit with the o34...

Project looks sick... i want one..

that stuff is small, thats exactly what i thought when i resently changed my bad 2nd gear(dang unconsevative yamaha)... its amazing that those things make so much power.

How much ya''ll think that thing is gonna weigh in at? hmmm

good luck

Hank


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PostPosted: Fri Nov 05, 2004 7:51 am 
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Well unfourtunately the rules spec a 20mm intake restriction. To many nerdy engineers who cant drive and things get unsafe. Only 30 of the 140 cars finish, some catching on fire, throttles sticking, etc. So with that intake restriction after about 10k rpm the motor just cant make power. We are looking into cams that will lower the powerband to try to make use of the air we have.

Most teams make around 55-70 whp and our car last year weighed 462lbs. 0-60 in around 3.5 seconds. And the handling makes you never want to dry another street car again.

I'll get some more pics and video when its running 034!

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PostPosted: Fri Nov 05, 2004 9:32 am 
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Lookin' good....Looks like you folks are running an adjustable pedal box. I noticed a lot of teams are finally doing that as of last competition. They all had fore/aft adjustment, but only a few (including ours) had another set of adjustments to make sure each driver was comfortable with the pedal placement.

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PostPosted: Fri Nov 05, 2004 8:08 pm 
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Pedal adjustment is really nice. I'd like seat inserst more than anything. The big thing is how everything comes down to weight. Are those extra adjustments worth the weight? So many things to think about!

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PostPosted: Sun Mar 27, 2005 10:56 am 
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mach 2 with my hair on fire

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Did some tuning with 034efi on the dyno. Progress is rather slow as the honda motor is very finicky and likes a lot of ign advance. A video should be up soon.

Image

Image

Also just finished tuning with our backup Honda ECU and piggy back fuel controller. 66.6 whp at 10k RPM, right before the intake restriction really hurts us. Power to weight ratio of 66.6/455 is pretty good!

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PostPosted: Sun Mar 27, 2005 10:59 am 
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Are you going to be @ the Michigan races in May?

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PostPosted: Sun Mar 27, 2005 11:08 am 
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Yup, should be there with the 90tq as well.

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PostPosted: Sun Mar 27, 2005 11:16 am 
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pro_mtn_biker wrote:
Yup, should be there with the 90tq as well.


I will be piloting for Carleton University if I dont go home although I really want to go home to finish off my project.

Whatever the case expect me to be Foot Flat and Fully broad :wtf:
:D

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PostPosted: Sun Mar 27, 2005 11:19 am 
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Have you been to Detroit before? The competition is a lot of fun, and even better when driving. I will most likely be driving the endurace, maybe we can go toe to toe :-D

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PostPosted: Sun Mar 27, 2005 11:26 am 
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pro_mtn_biker wrote:
Have you been to Detroit before? The competition is a lot of fun, and even better when driving. I will most likely be driving the endurace, maybe we can go toe to toe :-D


Never been to detroit.I dont think we will be toe to toe...as the SAE car is running a single cylinder engine (not my choice).
I voted for the 4cyl Honda engine but the other members wanted a single cylinder because it sounded *cool* and to think I am at a University ranked highest in Canada for Mech and Aero.
oh well such is life....not always about winning.Hope the guys learn something....really looking forward to it.

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PostPosted: Sun Mar 27, 2005 11:28 am 
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mach 2 with my hair on fire

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Haha, yah, if you look at the top 10 teams you seem almost all 600cc 4 cylinders. Probably like that for a reason. Is the car up and running yet?

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PostPosted: Sun Mar 27, 2005 11:31 am 
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pro_mtn_biker wrote:
Haha, yah, if you look at the top 10 teams you seem almost all 600cc 4 cylinders. Probably like that for a reason. Is the car up and running yet?


First 20 cars from last year ran a 600cc 4 Cylinder.Go figure....
Laws of Physics would tell you that a Single Cylinder 600cc engine CAN NOT out perform a 4cyl 600cc engine.
I believe the car will soon be done....

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PostPosted: Sun Mar 27, 2005 11:34 am 
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mach 2 with my hair on fire

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We just dynoed the motor and the 20mm restrictor really hurts power over 10k where the motor really wants to make its power. I think a 4-500cc might be optimal but finding a motor like that is hard. A Vtwin would be interesting too with its low end torque and I think we will start to see more CVT's as well.

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PostPosted: Sun Mar 27, 2005 11:36 am 
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pro_mtn_biker wrote:
We just dynoed the motor and the 20mm restrictor really hurts power over 10k where the motor really wants to make its power. I think a 4-500cc might be optimal but finding a motor like that is hard. A Vtwin would be interesting too with its low end torque and I think we will start to see more CVT's as well.


We may be head to head though,Last year we were 27th and you guys were 23rd.
Do you know any of the other guys from the other teams?

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PostPosted: Sun Mar 27, 2005 11:38 am 
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What fuel are you running?

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PostPosted: Sun Mar 27, 2005 7:19 pm 
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mach 2 with my hair on fire

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For now we are tuning with high octane pump gas, 91 here in CO. Eventually we would like to go up to 103 octane. The competition allows 93, 103 and E85

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PostPosted: Sun Mar 27, 2005 7:30 pm 
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Does it allow nitro methane or toluene? Because i know w/ nitro methane, you can instantly gain 2 to 3 times the horse power you currently have. It also requires less air, becuase it is an oxygenated fuel

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PostPosted: Sun Mar 27, 2005 8:20 pm 
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No oxygenated fuels allowed, somewhat defeats the purpose of the 20mm restrictor if you can use a "liquid" oxygen.

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PostPosted: Sun Mar 27, 2005 9:53 pm 
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Wizza, I was there last year with Purdue :wink:

I missed Preston, but I did see a couple quattros in the lot besides my own.

We haven't done crap in the last couple years, last year we didn't get scored in enduro and still finished in the top half. Rear diff housing plug leaked, and someone was VERY over zealous with the chain lube, so it made it look even worse, so we were black flagged. BTW, the chain lube person never owned up, but they f'd the rear brake up with it, lube saturated friction material does NOT work well when trying to slow a vehicle.

The brakes in general were bitched about, even though they cost 1/4th of Wilwoods and worked just as well, and were almost the same weight. I was like, WTF.

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