the car as it sits right now is about 670 lbs - roughly 70 more than targeted but i have a plan of attack 
have to get it running first.
have to get it running first.
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dp4 about ready for maiden voyage
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 dpalatov |
dp4 about ready for maiden voyage |
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Posts: 324 10/17/09 02:54:06 |
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 mad2002tii |
#1 | |||
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Posts: 660 10/17/09 11:18:35 |
Looks very cool - Please tell me that you have BIG THICK chain guard next to your shift lever - please!
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Marty Nygard |
dp4 | #2 | ||
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Posts: 297 10/17/09 12:13:54 |
Looks twitchy to me but I imagine it would feel just right to those moving up from carts.
The fuel cell looks like one of those vertical drag racing items--doubt it would pass SCCA. Any plans for wings? Price? Marty |
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dpalatov |
#3 | |||
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Posts: 325 10/24/09 17:41:24 |
had first outing at a kart track - things worked pretty well. yes, there will be a full chain management system (it's just guards right now but more will
be added).
blog and video is at dpcars.net details and pricing are at palatov.com 
Last Edited By: dpalatov 10/24/09 17:47:19.
Edited 1 time.
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Clark Lincoln |
#4 | |||
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Posts: 870 10/24/09 18:07:14 |
Very impressive piece of engineering! I love the direct, no cable, shifter hook up. Can't get more positive feel than that! Sounds like you only got up in
the power range on one spot on that go cart track (in first gear?) Again, very impressive.
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dpalatov |
#5 | |||
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Posts: 326 10/24/09 20:17:19 |
Clark Lincoln wrote:thanks, Clark. means a lot coming from you. i was never full throttle, that'll come later. yes the whole track was in 1st gear, top speed was 77.1 mph at 9,100 rpm about halfway down the 625-foot straight (coming off a 15 mph corner). at redline the speed is 89mph in 1st and when pushing harder it can easily be reached on that track, i just wasn't ready for it. the stock 'busa has so much torque that it can still break the tires loose at 10 mph. all-up weight with all fluids and me in the car was 940 lbs so i have a lot of weight reduction to accomplish (target is 850 with driver and bodywork, it will take a lot of doing but i suppose 900 will do fine in DSR, with a GSXR1000 motor instead of the big 'busa lump). bodywork arrives tomorrow (hopefully) and then we'll see what kind of odds i'm up against
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glenn cooper.formulamazdaforum |
cool! | #6 | ||
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Posts: 72 10/24/09 20:29:42 |
What are the 2 rectangular boxes located in the front bottom of the chassis?
Thanks, GC |
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dpalatov |
#7 | |||
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Posts: 327 10/24/09 21:30:24 |
glenn cooper wrote:one is radiator, the other is oil cooler |
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Malfred |
Wheel base ? | #8 | ||
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Posts: 82 10/24/09 22:11:10 |
What is the wheel base length ?
I can see that it is nice and wide, but it looks a little short in the wheel base catigory ? Is there a optimun ratio of the track width to wheel base length ? Just curious. m. |
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dpalatov |
#9 | |||
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Posts: 328 10/24/09 22:14:24 |
Malfred wrote:wheelbase is 68.5". track is 60" front and rear. there are many opinions on what is 'optimum', it all depends on what you're trying to achieve. if there was one 'right' way of building a car, after more than 100 years of auto development we'd probably all be doing it that way by now
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Quartzracer |
#10 | |||
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Posts: 175 10/24/09 22:28:25 |
Glenn those "boxes" look like coolers?
Eric |
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herman pahls |
DP 4 | #11 | ||
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Posts: 93 10/24/09 22:56:55 |
Dennis
What tooth count do your sprockets have to have such a fast 1st gear? It must be geared for 170 mph in 6th? The box with the large N must be a gear indicator. Where did you source it and how difficult to calibrate? Herman |
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dpalatov |
#12 | |||
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Posts: 329 10/25/09 01:46:45 |
herman pahls wrote:29 teeth, stock front sprocket (17). yes it's geared to go about 165-170 in 6th. i can tell you no problems with 1st, that's the only gear i've tried so far 10-80 mph in under 400 feet. we'll see about that top speed, likely won't hit it but gotta start somewhere.
the gear indicator is from geartronics - it uses the built-in suzuki sensor (only works with suzuki motors) and does not require any calibration at all. it also does the 5-th gear mod, i.e. makes the ecu think it's in 5th to use the unrestricted maps (lower gear maps are limited on hayabusa to keep bike riders from flipping it backwards). |
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Jeff Neal |
Hi Herman, | #13 | ||
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Posts: 1 10/25/09 11:22:18 |
Sorry to hi-jack this thread, but...
Herman, I sent you a PM asking about your car, we met in Medofrd a few weeks ago, I have the blue and white Z car from Bend. Sorry again, Jeff |
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glenn cooper.formulamazdaforum |
Ummm, yeah, coolers, that's it! | #14 | ||
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Posts: 73 10/25/09 11:39:19 |
I swear I've been around these things for a few years, I'm more than a little embarrased I couldn't figure that out on my own.
Which way does the air go through the coolers, up or down? How about some more detailed pics of the rear alu housing for dif and suspension pickup points? Thanks, GC |
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dpalatov |
#15 | |||
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Posts: 330 10/25/09 15:45:36 |
there are lots more pictures and details on the earlier pages of the blog - just
click on page numbers in upper right.
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DMSentra.oregonregionscca |
#16 | |||
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Posts: 5 01/01/10 15:15:02 |
?? Marty, explain the fuel cell statement please? Verticals aren't allowed?
Last Edited By: DMSentra 01/01/10 15:25:47.
Edited 1 time.
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Marty Nygard |
dp4 fuel cell | #17 | ||
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Posts: 318 01/01/10 15:45:02 |
Shape is irrelevant. The cell shown in the pictures is a drag racing plastic cell with a foam fill. Probably not certified for SCCA and definitely not in the
required can.
BTW, it is considered polite on this board to post your real name. Marty |
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dpalatov |
#18 | |||
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Posts: 341 01/02/10 02:22:06 |
Marty Nygard wrote: correct. the car is being designed primarily as a low-cost trackday toy and as such the fuel cell is the minimal (read cheapest) configuration that is still reasonably safe. there is plenty of room in the chassis for a variety of cells, including fully certified ones, that a customer can fit as desired (or we can do so per customer request). we will offer a DSR version with all the appropriate equipment, rule compliance (no AWD option obviously  ) and homologation -
later in the year. first few cars will be trackday toys only but will be well under $50K complete, starting at around $30K for the most basic configuration.
that is the car's reason for being. racing is secondary, and while i hope people will end up racing some of the cars i would consider it more of an
entry-level racer rather than something to battle for the national championship. time will tell
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DMSentra.oregonregionscca |
#19 | |||
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Registered User
Posts: 8 01/02/10 03:11:19 |
Loren Coffin, west of Eugene, SCCA member for 4-5 years now with autocrossing reasons. I guess maybe I'm just too rude to be a member here then.
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preformresources |
#20 | |||
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Posts: 645 01/02/10 11:01:36 |
Relax,Loren, you're not familiar with this board yet, welcome aboard!
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Add Reply
- 2010 Races
- General Discussion
- IMSA Lites
- Vintage: H Modified
- Getting Started
- Driving Techniques
- Aerodynamics
- Car Building
- Engine, Carburation, EFI, Oiling
- Rules Discussion
- Suspension, Tires, Wheels
- Other Technical Discussion
- For Sale: Cars
- For Sale: Engines & engine parts
- For Sale: Misc. Parts, Trailers, . . .
- Wanted: Cars & Parts
- Links, HOW TOs?, Reference info.
- Sold Items, (kept for reference)
- 2009 Races
- 2008 Races
- 2007 Races
- 2006 Races
- 2005 Races
- 2000 - 2004 Race Results (read only)
- Weight Debate
