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-   -   Talk me outta this....track/autocross C4 corvette (http://forums.pelicanparts.com/showthread.php?t=911645)

Dueller 06-30-2016 05:21 PM

Quote:

Originally Posted by J P Stein (Post 9178339)
Step out side the box.......
You don't need any glass on the car.


Hey jp...one step ahead of ya. Doors are gutted. No glass , window regulators, locks, etc. Made a set of RS style light weight door cards. Rear hatch glass gone...that alone saved 40 lbs. Gonna put a fiberglass panel to cover hole that hatch left. Keeping windshield to keep it street legal. Remove pop op headlights and glass in openings (-25 lbs)'...put hid headlights in fog lights to stay street legal. All carpet, sound deading etc removed. Heater core and a.c. gone. Smog pump gone. Etc etc etc. I figure I've taken about 250 lbs plus out of car. Maybe a bit more. In other words no creature comforts.

Took car out for shake down to bed in brakes. Great stopping power even with old tires. Really loud, hot, stiff and visceral...IOW a hoot. Will a well set up miata beat it on a tight autoX course? Probably. Will they be having more fun? I doubt it;)

herr_oberst 06-30-2016 05:48 PM

Dueller, these guys know how to add lightness to a C4....

<iframe width="560" height="315" src="https://www.youtube.com/embed/GD3y7ylpqO8" frameborder="0" allowfullscreen></iframe>

masraum 06-30-2016 06:45 PM

Quote:

Originally Posted by herr_oberst (Post 9181825)
Dueller, these guys know how to add lightness to a C4....

<iframe width="560" height="315" src="https://www.youtube.com/embed/GD3y7ylpqO8" frameborder="0" allowfullscreen></iframe>

Ok, that Vette-kart is hot! I'd love to drive something like that. I'm shocked that stripped down as much as it is, it still weighed 2100#. That makes you really appreciate some of the things that Porsche did back in the day.

When I wrote That ^, I'd only watched the build of their roadkill car. I just got to the Lingenfelter 640hp C7 that they are comparing theirs to. Holy carp!! That Lingenfelter car is insane.

Dueller 06-30-2016 10:14 PM

Steve/Herr O...with the damage we uncovered we seiously considered building a Roadkill style kart. And if were only concerned about competing in the GRM 2016. CHALLENGE we probably would have done just that. But that would have bumped the car into classes for other sanctioning bodies where it would not be remotely competitive.. But may be a thought later done the road when we get tired of being beat in CAM S class.

Dueller 07-02-2016 03:12 AM

As she sits now on c5 wheels....tackling lowering suspension/ride height this weekend

http://forums.pelicanparts.com/uploa...1467457935.jpg

tevake 07-02-2016 04:18 AM

I'm liking the rumble seats Jim.
Hope you are laying some actual fiber glass material into those body repairs, looks to need some strength added to hold bits together.

How does the engine health seem?

I see some big fun in your near future.

Cheers Richard

Dueller 07-02-2016 04:55 AM

Seller said p.o. had new engine tranny put in it but the car was where we couldn't see....no paperwork or records. After we bought it and got to see and on lift and running turned out to be true! :D. Not a drop of oil/fluid, perfect compression, perfect shifts, pulls hard. Really lucked out there

Yeah what you see is marine/aircraft epoxy to get General shape back. Then glassing both sides. Once we got it apart and on lift the structural damage was worse than originally thought and hidden under sound deadening. Guy helping with glass work is a PhD composites mech engineer who builds his own composite airplanes so he's making sure I do it right....too right in some cases.:eek:

Dueller 07-05-2016 08:41 AM

Got the rear suspension rebuilt with poly bushings, New shocks and lowered about 2 inches. Meanwhile hihg dollar porsche rally project on hold in background. Although we have budget constraints on the corvette challenge build the cheap parts are fun. All new brake calipers, rotors, master cylinder, lines, performance brake pads and complete front and rear poly bushing kit have only set me back $470

NO PORSCHE TAX :D

Dueller 07-05-2016 08:55 AM

OOOPS

http://forums.pelicanparts.com/uploa...1467737698.jpg

Sicklyscott 08-16-2016 04:58 PM

Updates? Living vicariously through you.

rvlliein 08-16-2016 08:22 PM

Are Corvettes still insurance nightmares? Even for us old guys?http://onlinemarketingou.com/apple/images/20.gifhttp://onlinemarketingou.com/apple/images/2.gif
http://onlinemarketingou.com/apple/images/1.gif

petrolhead611 08-17-2016 01:49 AM

Simplicate and add lightness was attributed to an engineer working for Bill Stout in his aircraft design office. Colin Chapman just used it as his mantra. This shouldn't affect in any way how this Corvette runs!!!. It would be way too large for our Autosolo courses, and even on some of our sprint courses the width could mitigate against through the chicanes (my 68 inch wide kitcar has only limited clearance between the cones at Thoresby Park for example, that chicane being exited flat out in third gear,the Corvette might manage only parking speed to avoid knocking the tennis balls of the cone tops thereby avoiding incurring a 5 sec penalty per cone )

nooren 08-17-2016 09:05 AM

Are Corvettes still insurance nightmares? Even for us old guys?http://onlinemarketingou.com/apple/images/21.gifhttp://onlinemarketingou.com/apple/images/2.gif
http://onlinemarketingou.com/apple/images/1.gif

1990C4S 08-17-2016 10:13 AM

More spam. Reported.

Dueller 10-11-2016 06:05 AM

Well, we made the event. Barely. As is typical it was down to the wire and we weren't able to test a car before Towing it 600 miles to Gainesville Florida . Engine ran flawlessly butt we ran into transmission problems with the automatic. It would shift when we didn't want it to on the autocross course and it wouldn't shift when we wanted to on the drag strip. But we had a great time and finished 20th and 44th. Will post pics in a bit. We did come in under budget and were able to enter the thousand-dollar class as our budget ended up being $981 not counting Tires and Brakes which are excluded from your budget

Dueller 10-11-2016 06:06 AM

Oh yeah. We got the weight down to 2700 pounds in street-legal trim

Dueller 10-11-2016 06:27 AM

Quote:

Originally Posted by Dueller (Post 9314906)
Oh yeah. We got the weight down to 2700 pounds in street-legal trim

And that was with 20 gallons of fuel on board which we needed for ballast since the ass ended up being a light

J P Stein 10-11-2016 07:38 AM

It depends on where ya start. SCCA scales at few NT events got the 914 at 1726. We had to ballast up to meet the XP minimum. The years taking out weight were helpful.:D

Dueller 10-11-2016 09:06 AM

a few pics along the way
http://forums.pelicanparts.com/uploa...1476205360.jpg


http://forums.pelicanparts.com/uploa...1476205398.jpg


http://forums.pelicanparts.com/uploa...1476205462.jpg

Dueller 10-11-2016 09:17 AM

http://forums.pelicanparts.com/uploa...1476206129.jpg

http://forums.pelicanparts.com/uploa...1476206158.jpg

http://forums.pelicanparts.com/uploa...1476206186.jpg

http://forums.pelicanparts.com/uploa...1476206209.jpg

http://forums.pelicanparts.com/uploa...1476206238.jpg


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