Looking for Fastlane, the Beast needs help

[Daves obsession]

Hello everyone, A little about my car Its a naturally aspirated 372 1990 ZR1 that Corey Henderson, Rick Harden and myself built to run at Bonneville. We ran the car last Aug , speedweek and turned consistent 218-220 at the 5 mile mark, still acellerating at the end.

http://www.youtube.com/watch?v=3sGoGa9t__o[/URL]

we just ran the car at the Texas mile, 178.645 mph

[URL]http://www.youtube.com/watch?v=WbjyBmx0N5Y (http://www.youtube.com/watch?v=3sGoGa9t__o)

I have been limited on this car by the Gearing of the ZF 6 speed, running in 4 th on the salt, with a 2.59 rear gear, 28" tire, and at the Texas mile 5 th , 3.54 rear gear, 25" tire.

In all cases the gears changes (3-4 , 4-5) are just too tall for the stage three cams,
I need to put a Jerico roadracing 5 speed in the car with 5 th at 1:1
I have been told that FastLane had done this. Can anybody help me,
We are going back after the record 230.5 mph next year an have to get with the program.

Thanks Dave

http://i398.photobucket.com/albums/pp64/speedweek/100_1653.jpg

[http://i398.photobucket.com/albums/pp64/speedweek/IMG_0895.jpg

[93RubyZ]

Not Fastlane, but here is the expert on ZR-1 transmissions:

http://www.zfdoc.com/

[gbrtng]

Dave - check your e-mail.

[Tyler Townsley]

http://www.corvettevalley.com/gallery/data/520/390224_288_full.jpg

Hopefully he contacted you.

Tyler

[fastlane]

How can I help you I had a Jerico for about 6 months then I went to a Lenco. You can use a Jerico or a Liberty they both let you pick any gear set you need. The Lenco is really better just for drags. You will need a bellhousing slightly modified and a hydrolic throwout bearing. Any questions let me know.

[fastlane]

http://www.corvettevalley.com/gallery/data/520/390224_288_full.jpg

Hopefully he contacted you.

Tyler
Long time no talk, hope all is well.

[Tyler Townsley]

Long time no talk, hope all is well.

All is well, Dean just took a Prof job at U of Alabama teaching Physics. He often asks about you. How is the wolf doing? You racing anything?

Since the car is going to be racing on the salt do you recommend a trans cooler and do they have the fittings for lines?

Tyler

[fastlane]

All is well, Dean just took a Prof job at U of Alabama teaching Physics. He often asks about you. How is the wolf doing? You racing anything?

Since the car is going to be racing on the salt do you recommend a trans cooler and do they have the fittings for lines?

Tyler
My Husky has been gone for a few years now I miss him he sure liked the race track. I don't think it needs a cooler the salt is a lot shorter than road racing. The Liberty or the Jerico can be made to work and can be had with any gearset. Im glad to here Dean is doing well. I have not done any drag racing but I have a Lamborghini Murcielago LP640 that I had out at California speedway road racing track, but I had it out at Mojove airport for the filming of Runway Titans DVD I enjoyed running it 5000 ft instead of 1320ft One of the cars I ran that day was a new ZR1 I thought it was faster then it turned out to be or maybe he picked the wrong guy to race.I have a C6 conv, but my daughter drives it. I drive the Aston Martin DB9 as my regular car and the LP640 on Sunday. I still have a bunch of original ZR1 parts and gaskets and some things not made anymore, I should make a list and post them but I got lazy this year. As far as I know the guy that bought my car has never had it out of storage. Keep in touch

[Hammer]

Hi Lane,

Your car was on Ebay awhile back. Did you put it on there or sell it before that? Pretty impressive car Mr.

Thanks for posting here.

[fastlane]

Hi Lane,

Your car was on Ebay awhile back. Did you put it on there or sell it before that? Pretty impressive car Mr.

Thanks for posting here.
I believe the guy that bought it from me has never had it out of storage since he got it. I heard he got married last year so he must of tried to sell it. I built that car in the early to mid ninties and I think no one has been quicker in all these years. Check out the In car video http://www.youtube.com/watch?v=tHuhnXVsyG0

[Hammer]

That is a great video, thanks for sharing.

[Daves obsession]

Hi, Fast Lane, thanks for posting, You have already helped me, by confirming that its not a big deal to make the change. I was at the stage of just buying one and looking at the pieces to figure how to make it work. I will build a quick list of questions and get back to you. your video is cool! love to have had that motor on the salt !

I can't wait to get a close ratio 5 speed , even the 5 miles on the salt is a drag race. With the car weighing in at 4800-5000# it takes keeping the car in the power band 100% of the time.

[fastlane]

Hi, Fast Lane, thanks for posting, You have already helped me, by confirming that its not a big deal to make the change. I was at the stage of just buying one and looking at the pieces to figure how to make it work. I will build a quick list of questions and get back to you. your video is cool! love to have had that motor on the salt !

I can't wait to get a close ratio 5 speed , even the 5 miles on the salt is a drag race. With the car weighing in at 4800-5000# it takes keeping the car in the power band 100% of the time.
Why so heavy?

[jonszr1]

i believe its to help with traction on the salt .i hear its like driving on snot . sorry dont know how else to put it

[Daves obsession]

4.5 inch tires require significant weight for traction.
You need to get the power to the ground and it takes a lot of weight on the axles and under the axles. Because of the high rear gears (2.59) a four wheel drive truck is pushing hard from behind to get the car to 40 mph at the 1/4 before you launch. Now its going to spin in first period, just going to happen, so its a short shift, and now you have to be on the wood early in second gear without spinning. To get to 230 mph at 5 miles requires getting to 215 by the 2 mile mark. While trying to go from 215 to 230 the track is going by at 291 feet per second, and the remaining 3 miles gets pretty short.

The rest begins with lift on the front, at 200 mph, there is about 440# of lift, at 220 mph its more like 880#. Now we know loose is fast but at 230 mph loose can be a spin and a spin can turn into a really bad thing.

so we run with 500 or so # on the front, which in turn lightens the back, so 1000 in the back is a good starting point.

For example, we were running at 4800# when we took 100# off the rear, the 2 mile times were slower and the tires started breaking loose at 215 mph. Causing the car to walk side to side. We needed more weight in the rear and more ponies.

Anyhow long answer for a short question

Dave

[fastlane]

4.5 inch tires require significant weight for traction.
You need to get the power to the ground and it takes a lot of weight on the axles and under the axles. Because of the high rear gears (2.59) a four wheel drive truck is pushing hard from behind to get the car to 40 mph at the 1/4 before you launch. Now its going to spin in first period, just going to happen, so its a short shift, and now you have to be on the wood early in second gear without spinning. To get to 230 mph at 5 miles requires getting to 215 by the 2 mile mark. While trying to go from 215 to 230 the track is going by at 291 feet per second, and the remaining 3 miles gets pretty short.

The rest begins with lift on the front, at 200 mph, there is about 440# of lift, at 220 mph its more like 880#. Now we know loose is fast but at 230 mph loose can be a spin and a spin can turn into a really bad thing.

so we run with 500 or so # on the front, which in turn lightens the back, so 1000 in the back is a good starting point.

For example, we were running at 4800# when we took 100# off the rear, the 2 mile times were slower and the tires started breaking loose at 215 mph. Causing the car to walk side to side. We needed more weight in the rear and more ponies.

Anyhow long answer for a short question

Dave
Does the class not allow body mods such as wings and spoilers for added down force.

[Daves obsession]

No mods to the body, with the exception of the hood, and removal of Mirrors.

you have to run them as they were born, no panning, venting of any kind.

In most cases the drag induced from wings and such in not worth the Hp loss. Folks prefer a car with no rear spoiler, choosing Lead instead for down force.

[Daves obsession]

The 4 x 4 Dualy would really have to work to get the car up to speed. Last picture is the car at about 220 mph, note the lift on the front , even the rear is seeing 200 plus # of lift.

http://i398.photobucket.com/albums/pp64/speedweek/DSC_2129.jpg

http://i398.photobucket.com/albums/pp64/speedweek/DSC_2114.jpg

http://i398.photobucket.com/albums/pp64/speedweek/2milemarkabout200mph.jpg