Speed week at Bonneville next year? - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 12-06-2004, 09:16 PM   #31
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Guys.........I've been over 150 before with no problems
willwren is offline   Reply With Quote
Old 12-06-2004, 09:17 PM   #32
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

Quote:
Originally Posted by willwren
Guys.........I've been over 150 before with no problems
That'* not good enough!
BonneMeMN is offline   Reply With Quote
Old 12-06-2004, 10:37 PM   #33
Junior Member
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default

Quote:
Guys.........I've been over 150 before with no problems
Well, the front end does lighten up quite a bit over 140. Perhaps you should install some skirting or even lower the front end an inch.
2000SilverBullet is offline   Reply With Quote
Old 12-06-2004, 11:13 PM   #34
Senior Member
Posts like a 4 Banger
 
Join Date: Mar 2003
Location: Elk Grove ILL
Posts: 129
Thanks: 0
Thanked 0 Times in 0 Posts
S1ofDSS is on a distinguished road
Default

just do like enzo and make flat panels from aluminum to smoothout the bottom of your car. I watched an old drag racing video and guys with chevells were using cardboard and duct tape to smooth out the under side and it made a difference in the quarter mile. just a thought.
S1ofDSS is offline   Reply With Quote
Old 12-06-2004, 11:44 PM   #35
Junior Member
 
Join Date: Jun 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
2000SilverBullet is on a distinguished road
Default



....With a big Ricer wing on the rearend.
2000SilverBullet is offline   Reply With Quote
Old 12-07-2004, 01:11 AM   #36
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Smoothing out the bottom would be suicide with not enough downforce on the front. Look under a Bonneville unibody sometime. Ask Mario Andretti how that works.


I have some ideas for next year, but again, the car is stable up to 140 now, especially with the V-rated tires. Less sidewall expansion helps keep the front down. A minor ELC adjustment will help further. It really isn't a big deal. 140 is a cake walk. The only variable I haven't dealt with is the heat, and that will be fully tested at speed before I go.

Sidewall strength of the tires has more of an effect on front-end lift than you might imagine. I've tested this with three sets of tires now. The difference is remarkable.
willwren is offline   Reply With Quote
Old 01-15-2005, 12:49 PM   #37
Senior Member
Posts like a Turbo
 
Join Date: Jun 2004
Posts: 287
Thanks: 0
Thanked 0 Times in 0 Posts
caminated2k is on a distinguished road
Default

Sounds like a blast

The only issue I see you having as said is heat. If I remember right you have a 1 mile area you must maintain your speed over, not to mention getting up to that speed.

Our cars are built to get up to a speed in a hurry but aren't very well designed to maintain those high speeds. Modified series 2'* have driven the autobahn and maintained 140mph speeds ... so a series 1 can do it...

However, the M62 is basically at it'* max output from the factory.. smaller pulleys on that blower start to generate more heat than is helpful in getting max performance.

The heat from that blower holding 130+ at 5,000+ RPM for a mile is going to be big. I suggest *which you may already have in mind* running a 104 octane fuel to help curb the heat effects and prevent predet.

A cutout might be a good idea too... it will be loud as heck but will help scavange those exhaust gases out a lot faster at those RPM'*, hopefully saving you some underhood heat from the mani'* turning red. I would run a slightly richer fuel mixture as well if possible, again in helping with heat.

You don't really have to pay much attention to it if you were only going to do it once, but multiple passes in heat like that at those speeds, that blower is going to turn into a gigantic hair dryer LOL

OH, and don't let it shift into OD at those speeds.. the 4th clutch has MUCH less area than 3rd and might not be happy.
caminated2k is offline   Reply With Quote
Old 01-15-2005, 01:20 PM   #38
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Good points, Caminated. I've been through most of them already. Keep in mind I'm running ram-air feed and cooling to the SC, and run alcohol/methanol injection for it'* intercooling benefits.

The run at speed week is now mostly dependent on my getting a transmission for the car that doesn't have a big hole in it.
willwren is offline   Reply With Quote
Old 01-20-2005, 05:29 PM   #39
Senior Member
Posts like a Northstar
 
Join Date: Oct 2004
Location: Purgatory
Posts: 533
Thanks: 0
Thanked 0 Times in 0 Posts
Greyhare is on a distinguished road
Default

Keep in mind this is not a flying mile like the big boy'* run. The 130 club is actually somewhat exclusive because it is a standing start one mile run. Also add low traction surface to the list of variables. (no hard launches)

Will, so far I'm still in. No chance of making the club unless the head work and tunning are done by then.
Greyhare is offline   Reply With Quote
Old 01-20-2005, 06:59 PM   #40
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

A few of the past Hot Rod magazines had very indepth articles on Bonneville Speed Week. I recommend anyone going to pick some up and get a feel for what they're in for.
BonneMeMN is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
yet another week later - one week left (2 pics) jwakamud Detailing & Appearance 4 04-12-2006 07:50 AM
Next week.... austin66 Lounge 1 04-06-2006 10:10 PM
Doing the coupler next week... questions Wolfedog50 Forced Induction 10 04-12-2004 12:16 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:31 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.