slngsht

For those of us who didn't start with a new kit, or build from scratch (well, in my case, nearly :lol: ), it's rare to have a chance to weigh everything as the car is put together. So I'm going to do my best to document how much the various components weigh as I put them in. I will do my best to estimate the weight distribution of each component using distances to front / rear suspension axis... When the car is done, I will go in for an official weigh-in and corner weight. Engine / tranny is weighed complete with headers, intake, full accessories, oil, fuel lines and fuel pump, all harnesses, including dash and chassis harnesses, ECU, fuse and relays, headlights, complete motor mount and cradle. Literally, it can be hooked up to the gas tank and battery and be fired up as it sits on its cradle on the floor - so there will be no cheating on the engine weight. I promise. So... post up your guesses for my final weight and front / rear bias %. NOTE: Items with * next to them are estimates at this point. For those new to the forum, I have an X-Rotus, powered by a LS1 V8, T56, camaro rear axle. Starting off with the chassis: Component / Total Weight / Front / Rear / % rear Bare Chassis / 219 / 59 / 160 / 73% Rear Axle / 215 / 0 / 215 / 100% Rear Wheels (both, with tires) / 100 / 0 / 100 / 100% Front Wheel Assemblies / 230 / 230 / 0 / 0% Rear shocks and springs (both) / 14 / 0 / 14 / 100% Seats / 13 / 2. / 11 / 83% Steering Rack / 10 / 11 / -1 / -10% Steering shaft / 10 / 6 / 4 / 40% 8 Gallon tank and bracket (with 8 gallons of gas at 6.2lbs) / 60 / -8 / 68 / 113% Side skin (both) / 22 / 11 / 11 / 0.5 Nose cone / 13 / 15 / -2 / -12% Floor* / 40 / 20 / 20 / 0.5 Engine / Tranny / 706 / 409 / 297 / 42% Battery / 36 / 4 / 32 / 89% Driveshaft / 10 / 8.2 / 1.8 / 18% Interior panels* / 1 / 0.5 / 0.5 / 0.5 Seat belts* / 4 / 2.5 / 1.5 / 0.375 Radiator* / 15 / 17 / -2 / -12.6% Fastners* / 10 / 5 / 5 / 0.5 Hood* / 10 / 7 / 3 / 0.3 Back Panel* / 8 / 9 / -1 / -12.5% ---------------------------------------------------------------- Total So far / 1745 / 808 / 937 / 54%

Wouldn't it make more sense to do something like restrictor plate or lower boost limit? running the 7/37 mile just isn't the same as running the 1/4

They mean your cross braces that support the hoop have to be within 6" of the top of the hoop, to minimize loading on the hoop that would fold it over.

ebay. don't remember the retailer.

captzoom, as others have said, thank you for your detailed description of what you have done. Posts like these really add value to the forum :thumbs:

I've been using reflectix to cover the footwell area and it worked well. You can find it at hardware stores, and it looks like bubble wrap, except it's outer skin is aluminum. It's designed for duct insulation and it works pretty well. Before I ripped the car apart, I had covered the passenger compartment side (as opposed to the driveshaft side) of the tunnel panels. All the panels were completely cool (like the car is not running) after driving.

Um, I think that's median

I should just skip the body work... Atom wannabe

7evin, awesome job! but will we ever live this down? :willy: :jester:

Yup, I'm just shocked NHRA would even consider going away from 1320'. Until they come back to it, there are really no records... All the victories will have a * next to them.

http://www.nhra.com/content/news/30355.htm NHRA shortens race distance for Top Fuel and Funny Car classes to 1,000 feet as an interim safety measure - 7/2/2008 As the investigation continues into the tragic accident that took the life of driver Scott Kalitta, NHRA has announced that beginning at the Mopar Mile High Nationals in Denver, Colo., both the Top Fuel and Funny Car classes will race to 1,000 feet instead of the traditional 1,320 feet or one-quarter mile. This is an interim step that is being taken while NHRA continues to analyze and determine whether changes should be made to build upon the sport's long standing safety record, given the inherent risks and ever-present dangers associated with the sport. This interim change was made by NHRA in collaboration with professional race teams. NHRA believes that racing the Top Fuel and Funny Car classes to 1,000 feet will allow NHRA and the racing community time to evaluate, analyze and implement potential changes based on the safety initiatives outlined last week. With the change, fans will still be able to enjoy the sights, sounds and thrill of NHRA nitro racing with speeds around 300 mph and quick elapsed times to 1,000 feet. Over the years, NHRA has implemented many initiatives to enhance safety including measures to limit speeds from increasing, personal protective gear, vehicle improvements, and track enhancements such as sand traps, catch nets and concrete barriers the entire length of the drag strip. In the wake of the tragic series of events that took Kalitta's life, the following technical issues are currently under investigation: 1) what might be done to reduce engine failures; 2) parachute mounting techniques and materials as well as identifying a parachute material that could be more fire resistant; 3) exploring whether there is a way to increase brake efficiency when cars lose downforce due to the loss of the body; 4) analyzing additional methods that might be developed at the top end of the race track to help arrest runaway vehicles; 5) considering whether current speeds should be further limited or reduced to potentially improve safety. “The board members of the Professional Racers Owners Organization (PRO) wholeheartedly and unanimously support this decision,” said its president Kenny Bernstein. “We want to thank NHRA for listening to our input and suggestions to incorporate these changes. It is not lost on any of us that this constitutes a change in our history of running a quarter-mile, but it's the most immediate adjustment we can make in the interest of safety which is foremost on everyone's mind. This may be a temporary change and we recognize it is not the total answer. We will continue to work hand in hand with NHRA to evaluate other methods of making Top Fuel and Funny Car competition safer so that we might return to our quarter-mile racing standard. We also want to thank Connie Kalitta for his invaluable input. He has been a rock through these difficult times.”

Two guys, one old timer and one young, are pushing their carts around The Lowe's when they collide. The old timer says to the young guy, 'Sorry about that. I'm looking for my wife, and I guess I wasn't paying attention to where I was going.' The young guy says, 'That's OK. It's a coincidence. I'm looking for my wife, too. I can't find her and I'm getting a little desperate.' The old guy says, 'Well, maybe we can help each other. What does your wife look like?' The young guy says, 'Well, she is 24 yrs. old, tall, with blonde hair, big blue eyes, long legs, big boobs, and she's wearing tight white shorts, a halter top and no bra. What does your wife look like?' The old timer says.... .. 'Doesn't matter --- let's look for Yours.'

Any pictures? I'm 50/50 on black right now.

:flag:

Don't make me put you in my passenger seat

how is the Time Trial done? Staggered start timed lap?

definitely count me in. hopefully this event won't be my first time on the track.

My tunnel sides are 16 gauge steel. I also have a 4" wide 16 gauge steel plate on the inside edge of the outside tube near the front of the seat. The seat is mounted in the front through its sides using two nuts welded to those steel plates (actually 4 nuts - 2 each for a back position (tall people) and a front position). The back of the seat sits on a frame member - I still have to find a rubber insulator for it. My sit pivots with this setup, which is great for cleaning rocks. Basically it goes from its resting position to over the steering wheel... If I feel the need, I can make the height of the back rest point adjustable to adjust the seat angle.

Your problem is that you should not be keeping track of how much this stuff costs :leaving:

Damn... alot of Roti in need of radiators. Is your friend Dan Owens or Joe Worsley by any chance?

:rofl:

JBH is flexing those arm muscles for the picture

Well, more info is creeping out about the ZR1. Now they just need to get one of their factory LeMans drivers behind the wheel and lay down the law :thumbs: From GM: By: Tadge J. Juechter Corvette Chief Engineer I know many people have been very interested in how fast the ZR1 would be at the Ring… Most car enthusiasts are quite familiar with the Nürburgring. Built in the 1920’s near Cologne, Germany, “the Ring” is considered to be the toughest and most challenging race track in the world. Over the last two weeks, we have been doing our final tuning and testing there before we start ZR1 production cars. This morning (Friday June 27), General Motors development engineer Jim Mero drove the Corvette ZR1 around the Nürburgring in a time of 7:26.4. Jim commented after the lap that conditions were good except for a strong headwind down the main straight and that the lap was solid, but he felt there were a few places he could have gone faster. The car was bone stock with the exception of the communications and safety equipment. The tires were production Michelin Pilot Sport 2’s. These tires have been developed specifically for the ZR1 and will have impressive wet traction and wear (tread wear rating = 220), in addition to excellent dry road holding. Chassis alignment and vehicle height were set to factory specs. Likewise, the engine calibrations were absolutely stock, emissions compliant and the car ran on pump (not racing) fuel. The vehicle was exactly like the cars that will be built in Bowling Green, Kentucky and sold around the world later this summer. Despite posting one of the fastest times ever run by a production car, Nürburgring lap times were not an over-riding priority in the development of the ZR1. The truth is, if the only priority was speed at the ring, the car would not be very pleasant to drive on American roads. The ZR1 is an incredibly capable track machine, but unlike most ultra-high performance cars, it is very easy to live with on a daily basis. The timed lap was run with a rolling start, a departure from our previous practice of standing starts. This is more aligned with current industry practice. The lap was electronically timed and confirmed with two hand-held stopwatches. An in-car video will be posted when the engineering team returns from Germany. Look for it the week of July 7!

ditto on The Lowdown. My favorites right now are Tied for 1st: Road Trip and The Lowdown 3rd: Ins7nity

You have PM - give me a buzz