Landracing Forum Home
April 22, 2018, 11:02:00 PM
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
News
:
BACK TO LANDRACING.COM HOMEPAGE
Home
Help
Search
Calendar
Login
Register
(Note: Donations are not tax deductible)
Live Audio Streaming and Archives of Past Events
Next Live Event: TBD
Landracing Forum Home
>
Bonneville Salt Flats Discussion
>
Build Diaries
(Moderator:
Seldom Seen Slim
) >
clutch and gearbox setups??
Pages:
1
2
[
3
]
Go Down
« previous
next »
Print
Author
Topic: clutch and gearbox setups?? (Read 6021 times)
0 Members and 1 Guest are viewing this topic.
Jack Gifford
Hero Member
Offline
Age: 77
Location: Phelps, NY
Posts: 1099
Re: clutch and gearbox setups??
«
Reply #30 on:
November 11, 2016, 12:46:18 AM »
I just finished disassembly/cleaning/checking the QC; might get some photos as it goes together.
I don't know how much power is lost through it. A best-case figure for straight-cut spur gear sets is about 2-3%. My box is all ball bearings, and just enough lube level for one gear of each set to barely touch the lube, so maybe 6-7% loss?
Logged
M/T Pontiac hemi guru
Rex Schimmer
Hero Member
Offline
Age: 74
Location: Fulton, CA
Posts: 2197
Only time and money prevent completion!
Re: clutch and gearbox setups??
«
Reply #31 on:
November 11, 2016, 02:59:22 PM »
Sum,
The Weisman was a new transmission after the 380 mph run. I first saw it in the car at the 2014 test and tune. He was really developing the tranny along with Weisman at the time. 8 speeds should give lots of ratio choices.
Rex
Logged
Rex
Not much matters and the rest doesn't matter at all.
panic
Sr. Member
Offline
Age: 72
Location: Lynbrook, New York
Posts: 766
Re: clutch and gearbox setups??
«
Reply #32 on:
November 11, 2016, 09:28:25 PM »
Sorry if this has been mentioned?
As the MPH goal goes up, or the engine's RPM power band shrinks (and especially if both), the value of a relatively small RPM % drop on the shift into high gear increases.
Yes, even though there are competitive cars with Powerglide and/or Gear Vendors (both of which have a geologic fault between penultimate and final gears) many would be faster if the gap were closed up, and (where necessity dictates) the gap transferred to a lower gear pair where weight (not air) is the primary resistance.
Logged
Pages:
1
2
[
3
]
Go Up
Print
« previous
next »
Jump to:
Please select a destination:
-----------------------------
Introductions
-----------------------------
=> Introduce Yourself
=> Formulas
=> Forum Rules
-----------------------------
Bonneville Salt Flats Discussion
-----------------------------
=> SpeedWeek 2018
=> SpeedWeek 2017
=> World Finals 2016
=> SpeedWeek 2016
=> SpeedWeek 2015
=> SpeedWeek 2014
=> Bonneville Contacts & Links
=> SpeedWeek 2013
=> Bonneville General Chat
=> Speedweek 2012
=> World of Speed-specific stuff
=> SCTA Rule Questions
=> Build Diaries
-----------------------------
Tech Information
-----------------------------
=> Safety
=> Aerodynamics
=> EFI Questions
=> Steering - Suspension - Rear End
=> Water/Methanol Injection
=> Technical Discussion
=> GearSplit LSR Software
-----------------------------
East Coast Timing Association
-----------------------------
=> ECTA Contact Info
=> ECTA General Chat
=> ECTA Rules Questions
=> ECTA Forms
-----------------------------
El Mirage
-----------------------------
=> El Mirage Contact Info
=> El Mirage General Chat
=> El Mirage Rules Questions
-----------------------------
Bonneville Motorcycle Speed Trials
-----------------------------
=> BMSTrials Contact Info
=> Bville Motorcycle Speed Trials General Chat
===> Bonneville Motorcycle Speed Trials 2014
=> Bville Motorcycle Speed Trials Rules Questions
-----------------------------
Loring Timing Association (Maine)
-----------------------------
=> LTA Contact Info
=> Loring (AFB) land speed venue
===> Loring Shootout
-----------------------------
Texas Mile
-----------------------------
=> Texas Mile Contact Info
=> Texas Mile General Chat
=> Texas Mile Rules Questions
-----------------------------
Mojave Mile
-----------------------------
=> Mojave Mile Contact Info
=> Mojave Mile
-----------------------------
Swedish "Ice Speed Racing"
-----------------------------
=> Landracing.SE
-----------------------------
Lake Gairdner, Australia
-----------------------------
=> Lake Gairdner, Australia
-----------------------------
Volkswagen L S R
-----------------------------
=> Volkswagen L S R
-----------------------------
Thrust-powered Land Speed information
-----------------------------
=> Discussions on absolute land speed records
-----------------------------
Fundraising, For sale, and Wanted
-----------------------------
=> Website & Kudos Laser items for sale
=> For Sale by Small Businesses
=> For Sale by Private Parties
=> Items Wanted
-----------------------------
Misc Forums
-----------------------------
=> Willie's Builds
=> LSR General Chat
=> NON LSR Posting
=> Health, Welfare, and Passings
=> Do before leaving for a race
=> How To Section
=> Website Suggestions
-----------------------------
Humor -- stories, links, etc -- may not be right for kids to read!
-----------------------------
=> THE place for (what you think is) funny stuff.
-----------------------------
Announcements
-----------------------------
=> Upcoming Events
Loading...