Search results for query: *

  • Users: gumper
  • Content: Threads
  • Order by date
  1. gumper

    Assassin bar u-bolt plate bent

    Installed my new Assassins bars to take the place of Caltracs. Torqued the new Calvert u-bolts down to 60 ft lbs per the Calvert split mono specs, and the plates distorted a bit. Smith Racecraft doesn’t send any torque specs in their single sheet installation instructions. I’m not too overly...
  2. gumper

    [SOLD] Caltrac bars

    Used Caltrac bars from my Duster. Going to disassemble and paint them. Other than that, what you see is what you get. Threads on the joints in good shape. $200, will ship within the US.
  3. gumper

    [SOLD] BTW Powerglide parts

    Won all these parts for a BTE Powerglide for my track champion prize. Everything added up is about $4400. A complete BTE is >$5000. If interested you’d have to let me know specifics on gear ratios, and I’d have it all shipped to you. I don’t have any parts in hand. Was looking for about $4000...
  4. gumper

    Winter storage and valve springs

    What are the fellow racers doing for winter storage regarding their rocker arms and valve springs? I’ve gone back and forth from pulling the rockers to leave all the valves closed versus leaving it as is. The last two years I left things as they were, and cranked the motor over once a month...
  5. gumper

    Track Champion

    After 25 years I finally won our overall track championship. Each class champion runs off at the end of the year for overall track champion. I won Pro class for the third time at this track, so I was in. Beat the Super Pro champion the first round, bye to the final, and then the Sportsman champ...
  6. gumper

    Race 727 band adjustments

    I searched, and couldn’t find the answer I’m satisfied with. I need to adjust the bands in my race only RMVB 727. I’ve read the specs are 72 in/lbs on both adjusters, back the rear one off 2.5 turns and the front anywhere from 2 to 4 turns. I’ve also read to snug them down until the driveshaft...
  7. gumper

    Boise Division 6 bracket finals

    Day 1 of the NHRA D6 finals. Get two time hits today. The weather sucks, 5200’ density altitude. Supposed to be over 100* all weekend. First hit on my car. Think I’ll add half a pound of air to the slicks. Wrinkling too much, then rebounding and unloading the tires just a bit. If that doesn’t...
  8. gumper

    Race season so far

    Half way through our drag racing season, and I’d like to share an update. Our first three races got rained on, so that was a bummer. I have managed to put the Duster in the winners circle at four of the other seven races since then, including this last Sunday where my daughter and I both won...
  9. gumper

    [FOR SALE] Digital Delay rpm switch

    Nearly new Digital Delay Elite rpm switch. Used for a couple races, and changed to a time delay shift box. $150 shipped.
  10. gumper

    Collected a win

    After all the problems I have had with my car for over a year, things seem to be working great now. Some of you know I’ve been having engine issues followed by a strange stuttering at the launch that turned out to be ignition related (I believe). Picked up a win this past weekend in Pro class at...
  11. gumper

    Pulling my hair out

    I am having a problem with my Duster I cannot find for the life of me. 1970 Duster, 410 on toilet injected alcohol, 727 with 4800 stall spragless converter, 8.75 with 4.30s, Caltracs at 3/4 to 1 turn preload and shocks between 7-9 depending on the track. What’s happening is as soon as I let go...
  12. gumper

    Ignition setup recommendations

    If you don’t want to read about my problem below I’m essentially asking what people may recommend for a new ignition setup on my alcohol burning 410 (the hemi build has to wait another year at least). Was leaning toward a 6al-2, pro billet distributor and whichever coil they recommend. Finally...
  13. gumper

    Pulling oil pan

    Can the oil pan on a 360 in a 70 Duster be pulled without lifting the engine, or pulling the engine out completely? Want to put a deeper pan on, but if the motor has to lift out then I won’t bother for now.
  14. gumper

    5.7 vs 6.4 SRT build and swap

    For my 70 Duster, and this is what I want. A 600 horsepower, Holley EFI tuned on methanol drag race engine that can also run on pump gas if I want. The decision needs to be made on how to get there. If I were to buy a running SRT 6.4, swap the cam, add some headers and tune it on alcohol I...
  15. gumper

    Moser 60

    Prior to stuffing a 600+ hp gen 3 hemi in my drag car Duster I’m going to first change the 8 3/4 diff. The 8 3/4 is living on borrowed time as it is with 1.45 second 60’ times even with the crappy 410 LA motor. I’d like to use a D60 instead of a 9” since the price for one ready to roll is about...
  16. gumper

    [FOR SALE] 410 LA Stroker

    Nearly new Chrysler 410 stroker engine. Scat forged rotating assembly. Crank is ground 10/10, cylinders .040 over, Icon pistons 12.7:1 compression, 6.123” I-beam Scat 60 rods. Ported Edelbrock heads that flow 280/240 @ .600 lift. Comp steel roller rockers. Hughes solid cam STL5054AS-8 .588/.600...
  17. gumper

    Reusing rods

    So my engine is at the machine shop, and the guy there told me I should buy new rods for my 408 rebuild. Said that by the time I spend the money on new bolts (proprietary to Scat) and have the rods resized I could just buy a new set of rods. First I wondered if I truly need new bolts to begin...
  18. gumper

    New engine build thoughts

    Finally, after 13 years, I have my 408 torn apart for a rebuild. Going to change some parts to go faster. This list is what I had, and what’s going to be now: LA 408 Chrysler 3250 with driver Running at 5300’ elevation Generally race 1/8 mile at home track in Montana, low 7.30s at 93 mph. For...
  19. gumper

    Header upgrade

    Thinking of upgrading my 1 5/8 Hooker Competition headers while my engine is pulled. Curious if there would be a significant power increase by using a larger primary tube setup. This is what I have: 408, around 11.6:1 Ported Performer RPM heads 65cc chambers, 270/232 @.500, 280/240 @.600...
  20. gumper

    Serpentine pulleys

    Having a rough time keeping my alternator V-belt on while running high rpm. Would like to switch to a serpentine style setup, but just need the crank and alternator pulleys. It’s an LA small block with the standard old style finned alternator. Will the magnum engine pulleys fit? I see those are...
  21. gumper

    8 3/4 woes

    After many, many years my 8 3/4 finally gave up. Not sure if I lost a carrier (Detroit locker), or the gear set. Now the decision is to fix the 8 3/4, or go to a 9”. 1.50 60’ car with 4.30s. Happened in the 1/4 finals of Pro class at our local track. The poor guy in the other lane red lit, so at...
  22. gumper

    Lost second, what’s this piece?

    Lost second gear in my 727 at the last race. Luckily I still had enough of a points lead to win both non-electronics, and pro class. Unfortunately I had to borrow a car to race for the overall track championship (all class winners race off for the title plus Wally), but lost in the final due to...
  23. gumper

    Drag car converters

    Who is making good converters for bracket drag cars these days? I have a 9.5” from Cope in the car now, and after 8 years I think it’s showing some age on the track. My 60’ times will swing .04 on a good surface within a few runs. I can’t say I’m surprised given it’s age, and it wasn’t built for...
  24. gumper

    Rear quarter rolling for clearance

    So my new 28x10.5 slicks are a little larger in diameter than the 28x9s. For some reason the drivers side quarter panel is way too close to the tire. The passenger side has 3/4" clearance. The axle isn't crooked, so it must be from some amateur bodywork in the past (the thing was full of rust...
  25. gumper

    Home tire mounting

    It's time to mount my new front runners and slicks on my new wheels. I despise taking my tires to get mounted at the local shops because they're full of young kids who don't give a f*** about doing a good job, so the last 3-4 times they've mounted my drag tires there's been problems. Scratched...
  26. gumper

    Intake on milled heads

    Putting a different manifold on my 408 for the fuel injection. My heads were milled .010" when they were getting ported. Do I need to have the new intake milled to fit, or should things line up fine since it was only .010"?
  27. gumper

    Conical seat lugs on drag car

    Going to buy new wheels to accommodate the skinny drag fronts and wider rear slicks on my Duster. I like the Jegs SSR Spike wheels since they're good looking and inexpensive. Yeah I know they are cheap cast wheels, but a few pounds on a bracket car won't kill me. The mental problem I have is...
  28. gumper

    US Car Tool spring relocation DONE

    Took half a dozen nights after work, and weekend afternoons, but it's finally done. Some thoughts on the US Car Tool kit... Very high quality pieces. Not great directions or measurements, but it's fairly strait forward. Cannot necessarily trust the pre-drilled holes when lining the front boxes...
  29. gumper

    [Found!] Small block single plane manifold

    Needing a single plane intake such as a Victor with the standard head bolt pattern to use for an alcohol injection setup. Preferably a race manifold, and not a low rise. Needs to be in good shape with no butchered port jobs, or cracks.
  30. gumper

    Spring relocation without mini tub?

    Going to be cutting my car apart tomorrow to move the springs in, and was going to do a mini tub job. The tire size I want to run is 28x10.5x15 bias drag slicks with 15x10 wheels. Figured a backspace of 5.5" would work without narrowing my rear end. I was looking at how it's set up now though...
Back
Top