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#101 |
fugedaboutit
![]() Join Date: Mar 2005
Location: Gresham, OR
Posts: 832
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Re: post latest 1/4 and 1/8 mile times and 60ft.
13.73 with my basically stock 400 sb. 60 mile round trip drive.. cant find my slips but I think they were like 1.88 60ft and 95mph.. Hoping for 12s this year, money allowing
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#102 |
fugedaboutit
![]() Join Date: Mar 2005
Location: Gresham, OR
Posts: 832
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Re: post latest 1/4 and 1/8 mile times and 60ft.
Dougminton- nice times, Id like to see what it would run with like a 28" tire and those 4.11s! Man I would think 12.6s-12.8s no problem!
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#103 | |
Registered User
Join Date: Nov 2007
Location: Bay Area, Ca
Posts: 2,841
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Re: post latest 1/4 and 1/8 mile times and 60ft.
Quote:
You shortened the trailing arms? Are they in the factory location (front eyelet) regarding both height and location on the frame? I was unaware the long beds and shortbeds having different control arm lengths.
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 |
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#104 |
Badass
Join Date: Jan 2009
Location: lox. fl
Posts: 4,586
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Re: post latest 1/4 and 1/8 mile times and 60ft.
im taking out my c10 with a hot 400 sbc out in a few days to the track. ill post my times
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Think outside the box? -84c10 (1stcar)→My Build← ![]() -00 Saturn 5spd drop a gear and disappear! 1/4:13:90 ![]() |
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#105 |
Registered User
Join Date: Mar 2009
Location: norman okahoma
Posts: 269
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Re: post latest 1/4 and 1/8 mile times and 60ft.
I left the crossmember in the longbed location when I shortened the frame to make it a shortbed. So I designed my own suspension loosely based on the stock stuff. Pic is with everything just tacked together to check the fit.
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The TEAL GMC build thread is HERE 1972 GMC SWB 454 oval ports TH400 fastest 1/4 mile time so far 13.05 @ 104 If you think you have too much horsepower you obviously have a traction problem ! |
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#106 |
Registered User
Join Date: Nov 2007
Location: Bay Area, Ca
Posts: 2,841
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Re: post latest 1/4 and 1/8 mile times and 60ft.
That looks like the stock location for the shortbed as well. I notice you made the front mounting point adjustable, good idea.
Springs appear to be furtner back towards the axle than on a shortbed. That will put less leverage on the spring, meaning you can run a lighter spring rate than a similar weighted truck with stock location. There are pros and cons for this. My guess on why you are not getting much tire spin at the track would be directly related to gearing and converter. You have a TH400 which has a 2.48 fist gear and a 3.08 rear gear with a 32" tire. Not sure about verter. That combo's means you have an amazingly lazy first gear and you are not hitting the tires very hard at all. For comparison sake: TH400 + 3.08 + 32" + 6,000 in first = 71mph TH350 + 2.73 + 35" + 6,000 in first = 71mph Powerglide + 3.73 + 28" + 6,000 in first = 72mph
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 |
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#107 |
Registered User
Join Date: Mar 2009
Location: norman okahoma
Posts: 269
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Re: post latest 1/4 and 1/8 mile times and 60ft.
shortbed factory location is 12" forward of where mine is. They had just VHTed the track. It'll turn em into smoke at 30 MPH on the street.converter will go 4000 on the foot brake.
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The TEAL GMC build thread is HERE 1972 GMC SWB 454 oval ports TH400 fastest 1/4 mile time so far 13.05 @ 104 If you think you have too much horsepower you obviously have a traction problem ! |
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#108 | |
Registered User
Join Date: Nov 2007
Location: Bay Area, Ca
Posts: 2,841
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Re: post latest 1/4 and 1/8 mile times and 60ft.
If that is the case, then the shorter arm coupled with the geometry change will put more angle in it effectively increasing antisquat numbers forcing the tire in to the ground. Did the rear feel like it raised at all under launch? Or does it stay level or even squat?
Quote:
![]() That's a good size verter, but it is still like a TH350 with a 35" tire and a 2.73 gear. Here is another comparison TH350 + 4.10 + 53" tire = your current gearing. The 4.10's are really going to wake that thing up!!! TQ Multiplication is going to be huge, 29% difference in gearing alone!! Can't wait to see your improvements. Just make sure you have a tire on it that will stick it because I think you are going to need it.
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 Last edited by Super73; 12-21-2010 at 07:44 PM. |
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#109 | |
Mean Green
Join Date: Sep 2007
Location: Portland, OR
Posts: 522
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Re: post latest 1/4 and 1/8 mile times and 60ft.
Quote:
I can barely get mine to hold 3400 before it pushes through.
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427 SBC 683HP & 590ftlbsTRQ @ fly wheel. 60'-1.38 1/4-10.43 MPH-124.6 New ET current 4/2019 AKA MEAN GREEN. |
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#110 |
Registered User
Join Date: Mar 2009
Location: norman okahoma
Posts: 269
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Re: post latest 1/4 and 1/8 mile times and 60ft.
super 73 The back actually lifts about the same amount as the front. C 10 kid In my old race car with hydroboost brakes that convertor went 5200 on the foot brake. Its an 8 inch
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The TEAL GMC build thread is HERE 1972 GMC SWB 454 oval ports TH400 fastest 1/4 mile time so far 13.05 @ 104 If you think you have too much horsepower you obviously have a traction problem ! |
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#111 |
Registered User
Join Date: Nov 2007
Location: Bay Area, Ca
Posts: 2,841
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Re: post latest 1/4 and 1/8 mile times and 60ft.
You are definately inducing 100% + antisquat then.. Move control arm to the top hole and you will induce even more. When I had mine above 100% antisquat, traction on the unprepped airport track that I was racing was hard to come by as it would shock the tires too hard if I stood on it. Simply lowering the mounting point made a huge difference for the unprepped airstrip. The lower you go, the less hit, the higher you go the more hit. That place hooked as bad as a bad street.. Just food for thought.
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 Last edited by Super73; 12-22-2010 at 07:58 PM. |
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#112 | |
Mean Green
Join Date: Sep 2007
Location: Portland, OR
Posts: 522
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Re: post latest 1/4 and 1/8 mile times and 60ft.
Quote:
That would allow a motor that's boosting a huge advantage.
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427 SBC 683HP & 590ftlbsTRQ @ fly wheel. 60'-1.38 1/4-10.43 MPH-124.6 New ET current 4/2019 AKA MEAN GREEN. |
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#114 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,213
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Re: post latest 1/4 and 1/8 mile times and 60ft.
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#115 |
Badass
Join Date: Jan 2009
Location: lox. fl
Posts: 4,586
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Re: post latest 1/4 and 1/8 mile times and 60ft.
r/t .129
60: 2.100 1/4 14.173 mph:94.84 ![]() pepd up 400/th350 3:42gear posi. 28tall tire. first run. 92chevy1500. built 355 alum heads the works. built 700r4. pulled him to the end. we passed the line. he blew a headgakest ![]() good ol' 400sbc
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Think outside the box? -84c10 (1stcar)→My Build← ![]() -00 Saturn 5spd drop a gear and disappear! 1/4:13:90 ![]() |
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#116 |
At the body shop.
Join Date: Aug 2009
Location: Land of fruits and nuts.
Posts: 5,213
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Re: post latest 1/4 and 1/8 mile times and 60ft.
My truck made the most gains in the 60 ft. Tight converter and 3.08s 2.20 60 fts.
10'' verter ,cal trac bars and a 325/50 Hoosier drag radial 1.671 60fts. started at 13.50s down to 12.19s |
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#117 |
Badass
Join Date: Jan 2009
Location: lox. fl
Posts: 4,586
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Re: post latest 1/4 and 1/8 mile times and 60ft.
yup thats my next thing. vertter. and sticky tires
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Think outside the box? -84c10 (1stcar)→My Build← ![]() -00 Saturn 5spd drop a gear and disappear! 1/4:13:90 ![]() |
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#118 |
Registered User
Join Date: Oct 2006
Location: bridgecreek ok.
Posts: 1,214
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Re: post latest 1/4 and 1/8 mile times and 60ft.
hey doug, that thing is going to move when you change those gears. Let me know next time you take it out, can't wait to see what it picks up.
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http://67-72chevytrucks.com/vboard/s...d.php?t=494388 431 big block times, changed to a 6.0 ls with turbo 1.58- 60' 7.18- 1/8th mile@95.18 11.37- 1/4 @115.81 |
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#120 |
Registered User
Join Date: Dec 2010
Location: Hanover, Indiana
Posts: 55
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Re: post latest 1/4 and 1/8 mile times and 60ft.
I'm new here, my question is what kind of rear suspension set up are you guys running. I have a 71 lwb with a 472cid buick. Like to find a way to quit blowing the tires off.
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#122 |
Registered User
Join Date: Mar 2010
Location: West Chicago, IL
Posts: 140
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Re: post latest 1/4 and 1/8 mile times and 60ft.
11.20@120mph.
1.59 60ft you can watch the run here. The guy i lined up next to was a street racer so he didnt want the time up on the board. http://www.youtube.com/watch?feature...&v=SCa8-X_wWKs
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1969 C10, 2005 LLY Duramax, Wagler Competition built motor, Bullseye Power triple Turbo's, Rossler th400, Neal Chance Racing Converter, Danville Performance tunning. 8.3@168mph 1700+ HP |
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#123 |
Registered User
Join Date: Oct 2006
Location: bridgecreek ok.
Posts: 1,214
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Re: post latest 1/4 and 1/8 mile times and 60ft.
need to post up some pictures and a build thread, bad a--
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http://67-72chevytrucks.com/vboard/s...d.php?t=494388 431 big block times, changed to a 6.0 ls with turbo 1.58- 60' 7.18- 1/8th mile@95.18 11.37- 1/4 @115.81 |
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#124 |
Registered User
Join Date: Mar 2011
Location: alberta, canada
Posts: 32
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Re: post latest 1/4 and 1/8 mile times and 60ft.
1980 longbox
10.94@119mph 1.48 sixty foot iron headed 468 with th400 33.5 x 15 slick i will get some pics up later |
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#125 |
Registered User
Join Date: Mar 2011
Location: alberta, canada
Posts: 32
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Re: post latest 1/4 and 1/8 mile times and 60ft.
here's couple of pics
![]() Last edited by drag80; 03-20-2011 at 06:20 PM. Reason: picture |
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