mark,

how did you get your car to weigh so little, light weight paint???? is it still street legal?

 

My old Honda weighs in at 370 lb and is advertized as 154 HP....... a 2.4 ratio unloaded.
Add the 180 lb rider and 20 lb of fuel and it's more like.......... a 3.7 ratio.
There are few cars that come close to that. Even if they do, they are still not much of a stoplight threat. There's still the little issue of inertia in the Honda's favor.

 

Not so long ago they ran a 500cc Grand Prix motorcycle against a formula one car; I believe it was a Yamaha and a Ferrari. The bike lead up to 100mph when the car went thundering past never to be seen again. The biggest problem with motorcycles is aerodynamics...............only now are the MotoGP guys regularly passing 200mph.............be interesting to see a new comparison. Also not a contest when comparing lap times, 2 wheels good 4 wheels better, by a large margin!

 

No question....... the only place the bike wins is at the stoplight skirmishes. The tire(s) contact patch comparison highly favors the car for turning and for braking. The aerodynamics favors the car for top speed. It's good to have one of each, just to suit the mood of the day!

 

One of the Green Bay 928 guys has a bike that he built basically from the ground up. It's got an air cooled four cylinder engine, intercooled Vortech supercharger, somewhere over 20psi of boost, electronically controlled pneumatic shifting, and probably a lot i don't know or forgot about. I think he said weight was around 550lbs. On a dynojet it did right around 345rwhp. It's a street bike that was regularly driven to work and around town until he got his 928 and supercharged it. No, I have not gotten a ride on the bike, and I'm not going to ride on it either!

 

There's a fellow here with a ZX-10 that's got 4-port nitrous......... apparently its a bit hard to hang on to when you hit the NO2 at 80 mph....
Sillyness comes in many forms!

 

everything removed, and some minor mods, thats it.
details will take some time. (ie gut doors, removable windows, remove insulation, plastic windows,........)
500lbs in 5lb increments

mk

 

Just had my 928 weighed today, for a near stock 88 S4 automatic with about 1/3 tank of gas in it came in at 3460lbs. I figure it will be right around 3530 with a full tank of gas. Just about where I thought it would be!

 

Sounds like chevy is going after some high revving power? Ti Rods? I've heard they are kind of a wear item?

.591 lift? They could fit a small racoon thorugh that valve opening. I wonder how they will deal with low rev power... Oh, wait, 7 fricken liters will help with that!

 

Yep. Don't. We need you here man. Not smooshed across the great lakes in smeared pieces.

 

Can you start a thread on that Mark? I think alot of that car be done to street cars.

 

mark, that sounds like a lot of work. is it possible to do all of that and keep things aestheticaly pleasing?

 

I've always thought that it would be bitchin to have the power to weight ration of my CBR1000. Just squirts away from the stop lights without even really getting stupid. With me aboard it is in the 6.5 lbs per HP. Sounds like I can get pretty close with a S/C. Time to go on a diet and start saving my duckets.

Cheers,

 

for sure, stoplight to stop light, bar the top speed limitation, the bike is king. throw some turns in and the car wins! keep in mind, at laguna seca, there still some of the worst pro drivers, with some of the top style producton pro bikes running right around what the old holbert car runs at laguna seca (ie 1:40ish) sure the top bikes are around 1:30, but so is mark anderson in his. Point is, bikes have a definite disadvantage to the car in handling and braking.(hard to imagine, but true).
mk

 

Lets see, 3450 with a 1/3tank of gas, vs the holbert car of 2750 with the same gas, thats 700lbs !!!!!!!!!

to keep the car fairly street pleasant, say , make it ride like an F40?

1. remove all the insulation, put carpet back , save 50lbs. thats out of the doors, floor, under the gear shift, bhind the radio, etc
2. lightweight rims
3. exhaust system with headers
4. remove bumpers
5. replace seats with wannabe race seats
6. toss out 70lb stock battey, replace with 15-25 lb replacement
7. remove smog pump.

that drops about 50+30+50+70+100+50+10= 360lbs to a final weight of around 3100lbs. pretty good for street and club DE events and starts you into a weight you can race at too.

to take the plunge, remove
passenger seat
all glass
AC and heating and vent equip, including ac condenser, etc
lightweight starter
gut doors pannels, cut excess metal, remove windows
all carpet goes
all interior goes
dash removed
headlights removed
battery box cut out
14lb battery
cut center console, replace with dummy buttons for looks.

Then, add in cage, firesystem, electrical cut off switch, camera mount, etc

end up with 2750 with 1/3 tank of gas. Not bad for not really doing anything but labor. try that with your stock Z06!!! 300to 330 at the wheels and 2700lbs is a very fast car.

Ive done this twice and its not that hard. definitely easier the second time.

Mk