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#676 | |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
Quote:
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#677 | |
Registered User
Join Date: Jan 2011
Location: Mount Airy, NC
Posts: 132
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Re: Make it handle
[quote=robnolimit;4823820]
Quote:
Thanks,
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Jack Byrd '70 Chev Custom SWB(new to me), 307CID(added Weiand Stealth, headers and Edelbrock Performer carb, up to 17 MPG now), 700R4 '76 Airstream Argosy MH(want a longer one), 454CID, TH400 |
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#678 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
yes, all of the drop details are coming up in StreetTrucks. We're about to swap the rear to air ride, watch the build thread for updates. Also there is an upcoming story on the new Painless Wiring trans controler. This is a stand-alone controler for L460, L480, L465 trans, you can tune lock-up, shift points, OD shift........ also you can hold two seporate set-ups, and go from 'mild' to 'performance' with the flip of a switch. It's really a cool deal for trans swaps. Now you can use an electronic shift trans behind a carb smallblock.
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GoodGuys 2012 Pro-Truck Champion ![]() 2012 Truckin' Throwdown Champion GoodGuys 2011 National Champion ![]() 2011 Truckin' Throwdown Champion GoodGuys 2010 National Champion ![]() Proud to put our products up against all others! |
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#679 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
If you have an idea, sooner or later you need to test it out to see if it works. Otherwise, it's just a guess of somekind. My Silver Bullit effie (don't hate on it) looses a bit of traction into and out of the corners, and thats something I've been working on. So, I had this idea. The panhard rod is a typical one. Urathane adjuster on one end, and a rod end on the other. Needless to say, it doesn't give much. I can fell the weight shift going into the corners and right as the wieght fully shifts over, the tires loose a bit of traction. So I started to think of ways to load the tire softly. I see these 'bisquit' torque rods that the dirt oval guys run, typically on the top link of a three link, to ease in the torque load on acceleration. Hmmm, could I use this on the panhard rod? Here is the Speedway torque rod next to my panhard rod.
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GoodGuys 2012 Pro-Truck Champion ![]() 2012 Truckin' Throwdown Champion GoodGuys 2011 National Champion ![]() 2011 Truckin' Throwdown Champion GoodGuys 2010 National Champion ![]() Proud to put our products up against all others! Last edited by robnolimit; 08-05-2011 at 06:33 PM. |
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#680 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
As you can see, it's too short, and it has the wrong mount on one side. But the mechanics are there. The bisquit bushings allow the rod to get longer or shorter when pushed or pulled, softening the load. First I replaced the rod end next the bisquit housing with a urathane adjuster. This gave me the same mount style as the Panhard rod.
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GoodGuys 2012 Pro-Truck Champion ![]() 2012 Truckin' Throwdown Champion GoodGuys 2011 National Champion ![]() 2011 Truckin' Throwdown Champion GoodGuys 2010 National Champion ![]() Proud to put our products up against all others! Last edited by robnolimit; 08-05-2011 at 06:34 PM. |
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#681 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
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GoodGuys 2012 Pro-Truck Champion ![]() 2012 Truckin' Throwdown Champion GoodGuys 2011 National Champion ![]() 2011 Truckin' Throwdown Champion GoodGuys 2010 National Champion ![]() Proud to put our products up against all others! |
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#682 |
Registered Cruiser
Join Date: Mar 2010
Location: Mesa, AZ
Posts: 918
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Re: Make it handle
Makes sense...Seems like it could be a great idea! Worth a shot I think!
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77' Chevy SB Dropmembered Front and Rear 5.3/4l60e combo |
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#683 |
Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,932
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Re: Make it handle
Rob this is amazing to watch you work with all this. Just reading your posts is like we are all there sort of bench racing. It makes me feel like part of the learning curve. Great work. Keep it up.
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Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
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#684 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
Thanks a bunch. We're having a great time with this. After Columbus we are now hungrier than ever to go faster. You see, GoodGuys autocross is dominated by the Pro-touring croud, and, truck guys don't get much respect, - until you start beating them. In Columbus, the nations fastest showed up lookin for a fight, and they all wanted to win the top trophy. We won our class, but more impressive, we ran 9th fastest overall. The really fast cars are now within reach. here are some of them. Mary Pozzi, 10+ time national auto-x champ, ran a 32.595, 72 LS Camaro. Mark Stielow, last years Optima Invitational winner, ran 33.081, 69 LS Camaro. Brandy Morrow, 70 LS Camaro, Spectra Performance, ran 32.622 to win the vendor class. Jimmy Day, in the Optima Batteries 'One Lap' Camaro, LS 67 Camaro, ran 32.844, and Ryan Mathews, the weekends fastest from Detroit Speed, ran 32.955 in thier LS 63 Nova.
Our fast lap was 33.704. We have never been so close to the top tier. So, my goal, is to shave 1 full second. The typical GoodGuys coarse has 8 to 9 corners, and 9 to 10 straight sections. We are way under powered compared to the 'A' list cars, our 330 @ the tire to their 450+ average. We're working on that, with a new style injection. More tuning and tricks with the chassis will help in the corners. My goal, is to gain .05 seconds in each section, corners and straights. And, and this is the big one, not make any driver errors. ( lots of go-cart practice) .05 sec. over 18 sections, would gain .9 seconds, and would have placed us with a 32.805 lap, and 4th over all. Also, this would have scared the heck out of the Pro Touring crowd, and been a huge move for Truck lovers. The October GoodGuys in Texas is the next time we run against the 'A' listers, and we really hope to have a good showing. Thanks for the interest.
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#685 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,983
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Re: Make it handle
Quote:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#686 | |
A guy with a truck
Join Date: Sep 2005
Location: Germany, for now
Posts: 5,920
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Re: Make it handle
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-Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy |
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#687 | |
Garage wrench
Join Date: Feb 2008
Location: LaCrosse, WI
Posts: 1,855
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Re: Make it handle
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-Adam 90 V1500 GMC Suburban 350/700R4/NP241..... 01 Saturn SL1 stock DD..... |
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#688 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
HAHA, it has a real hood on it these days. Over the weekend, i installed the new panhard rod, and drove it around. To be honest, I can't tell for sure if there is much difference. there aren't too many roads where I can stuff it in a corner the way you do on a track. It did feel slightly smoother if I hit a bump in a corner. So, I started looking for sweeping corners with a bump in them. Then I put the standard panhard bar back in, and hit the same bumps, and it was a little smoother with the torque arm rod. So, I'm ready to go testing tues night. We'll see what happens.
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#689 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,983
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Re: Make it handle
Quote:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#690 |
I'm just glad to be here!
Join Date: Jan 2008
Location: Longview, TX
Posts: 4,788
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Re: Make it handle
I saw your runs last year, but the crowd around you afterward was to large and my boys where hungry. Maybe this year I will get to meet you. I love seeing your truck run the autocross and get so close to the big "A" listers...
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Karl ![]() 1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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#691 | |
Man of Mini-Talents
Join Date: Sep 2009
Location: Oklahoma City, OK
Posts: 4,295
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Re: Make it handle
Quote:
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Steve Project - Ruth 66 Skylark Project - Lola 60 Biscayne Project - Iron Ox 54 GMC 100 Project - Darth 69 Camaro |
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#692 |
Senior Member
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Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
As brakes go, we're good. We are currently running Baer 14", 6 piston brakes on all four corners. I have swapped to a 1 1/8" master to get more pedal feel, as it was a bit grabby with a 1" master. I think we could use these brakes on the space shuttle. And yes, this is one more area to tune, which means we could get it wrong too. But right now it's just an idea we're going to try. If it works, great, and if not, at least we know.
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#693 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,983
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Re: Make it handle
Quote:
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#694 |
Registered User
Join Date: Aug 2011
Location: Dallas TX
Posts: 563
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Re: Make it handle
I always love seeing your truck run at gg events. That thing hauls ass in the curves.
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#695 |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,983
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Re: Make it handle
Dang dude.... Haven't seen you anywhere lately. How life, wife, & kids?
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#696 | |
Registered User
Join Date: Aug 2011
Location: Dallas TX
Posts: 563
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Re: Make it handle
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Built the new shop and got bent over with no lube lots of issues, way over budget and now broke and can't finish it yet. Twins born 3 weeks ago healthy boy and girl and I have forgotten what sleep is. PM me for more details. I hope to sneak up to Kellers one of these days again. |
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#697 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,983
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Re: Make it handle
Quote:
[announcers voice] We now return the rest of you back to your regularly scheduled programming [/announcers voice] ![]()
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#698 | ||
optomistic ah-so
Join Date: Mar 2009
Location: Charlotte, NC
Posts: 544
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Re: Make it handle
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Now relate those to bars (Lakewood used to make some) that mounted solid at the front but slid along the tube. Next imagine a spring that can be swapped out to adjust how firm or soft the "hit" is on that tube that slides, while the torque tries to wrap-up the leafs and that effort is diverted to transferring weight. The bumpstop in that third link acts like a spring in a single Lakewood-style bar in the middle of the suspension. In a stock application, like Monzas/Camaros/Firebirds/ etc, the leafs are instead coils with one fixed-length trailing arm to locate each side. That's probably obvious to most members here. Instead of a bumpstop/spring, the stock applications have a bushing at the front mount--for much the same reasons our truck trailing arms do, and like Rob put back in his third-link to make a "soft-hit" panhard bar. In racing, the front link is "solid"--sorta. Often the front floats. a system of chains and links like sway bars have are used to restrict the floating front location, making the hit softer still. It isn't always used--dirt cars are different from asphalt and even within the two a loose setup has different needs than a neutral or balanced setup. Hopefully I oversimplified it enough that Rob will still sound like the genius he is, next to me. Good luck Rob, on the "soft-hit" panhard bar! I like the concept and wish I'd thought of it.
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Rubbing is Racin' Ribbing is Bench Racin' 1970 C-10 lwb Fleetside. Originally 350 2-bbl 3-on-the-tree, m/b, m/w, m/s no a/c. Currently running on a '76 Camaro 305. ![]() Last edited by CSGAS; 08-09-2011 at 07:01 PM. Reason: missed a step. |
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#699 |
Senior Member
![]() Join Date: Jul 2010
Location: Dandridge, Tn. USA
Posts: 2,226
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Re: Make it handle
good explanation, thanks for the help. Sounds like you've done some oval racin. On to last night. Here was the test. Try to be consistent. 30 psi int the fronts, 22 psi in the rears. We started with our base shock set-up, and stayed with it. Everything else was set up nuetral. For the first session, from 6pm to 7:15pm, the sun was out, track was good. We ran with the OG bar. The six lap average was 49.57, with a high/low 1.41 sec. Then we put in the Flexi-bar, same set up, for the second session, 7:30 to 8:45pm. The sun was about down at the start, and it was getting dark. The air was cooler, but so is the track, and even though the track is lit, there's a few dark areas. The six lap average was 49.64, with the high/low of 1.21. So, maybe it's no real difference? But, we had set up a speed trap in the middle of a sweeping right hander at the end of the front straight. Average speed in session 1 was 39.47 mph, average speed in sesion 2 was 44.86 mph. Thats HUGE, so why slower lap times? At the end of the back straight is a 230 deg banked, decreasing raduis hairpin turn, it's challenging. With the Flexi-bar, the grip was really good here, then it would overpower the tire, and the truck would 'buck' to the side a little bit, then i would slow down to control it. Maybe I entered the corner too fast, But I do think I could have tuned that out with the rear shocks. - But, shock tuning wasn't part of the nights program. So, I'm not so sure there are big gains, but I'm not ready to give yup. The higher trap speed are too impressive. So, next week we'll go back, run two sessions with the flexi-bar, and tune with air pressure, shocks, and alignment, and see what we can get out of it. On a side note, we did take the JT out with us. It ran a 51.69 average, with a fast lap of 50.95. the high/low was 2.18. It's best running ever. We have installed a Painless Wiring trans controller, which helps with the lock up. Then we have changed the front alignment as follows, camber, -1/2deg. camber, +7 1/2 deg. toe out 1/8". the truck steers great, but it is a bit loose on corner exit. Mike says it's great to drive on the freeway, and in the hills around his house, better than a new truck.
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#700 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: Make it handle
Is there a link to the JT build? I saw it in classic trucks, but am really curious to see it. Hoping to do some budget friendly suspension on my '74 once it cools down a little here.
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1974 Jimmy- 5.3/4L80e/NP241 |
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