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  1. Replies
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    1,509

    IF i AM THE DRIVER, I WOULD prefer the brinn...

    IF i AM THE DRIVER, I WOULD prefer the brinn over most.
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    1,509

    The Brinn tranny is prob going to be the most...

    The Brinn tranny is prob going to be the most supported, Brinn is very supported as far as rebuildabilty, I am not sure what everybody else will say, but they all are similar when it comes to cost...
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    396

    justad-dirt, are the bearing clearances on a ls...

    justad-dirt, are the bearing clearances on a ls motor tighter than a sbc, or is the oil pump in an ls type engine not capable of the same flow of a sbc??? I am confused as to why a ls would require a...
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    773

    Without knowing how many frames per second are...

    Without knowing how many frames per second are being displayed, no, you cannot determine wheel speed from video. Have you ever watched a video, and something on the video appeared to rotate in the...
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    1,031

    The main point should be that G.M. started the...

    The main point should be that G.M. started the whole idea of spec engines on dirt tracks. If you were in G.M.'s current position of having your spec. engines used exclusively in several racing...
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    1,122

    When you pay big money for a new chassis, you are...

    When you pay big money for a new chassis, you are a priority to the chassis builder, when you buy used, you end up calling the generic number, this number does not go the company owners cell phone,...
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    2,007

    Less rf rebound, less lr rebound, less trail on...

    Less rf rebound, less lr rebound, less trail on the lr/less longer on the lr. If it loose from the center out, you either need more dynamic wedge or less rear steer.
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    595

    Not all oils that claim to be "synthetic" are...

    Not all oils that claim to be "synthetic" are actually synthetic. In the late 1990's, castrol introduced castrol synthetic, which was actually just a hydrocracked base oil. A huge lawsuit by mobil ...
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    821

    A hot motor requires more power to crank than a...

    A hot motor requires more power to crank than a cool motor does. Obviously, it could be the starter or battery, but if you are running a solenoid, I would also look really closely at the condition...
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    267

    An old mechanic once told me this. If you doing...

    An old mechanic once told me this. If you doing a tune up on a dodge, use the champion plug that dodge selected for that engine, but for any other engine, use something other than a champion plug. ...
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    748

    Also, be aware that when you allow the left rear...

    Also, be aware that when you allow the left rear to drop like a late model would, you will probably have too soften the rf spring rate, and you will also end up needing shocks that will tie the rf...
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    748

    Race tech constantly moves down from the higher...

    Race tech constantly moves down from the higher classes to the lower classes. A heavy left rear should make a car loose of the throttle, and also it should make a car tighter on the gas. This is...
  13. Thread: 377 sbc

    by LRtireCHANGER
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    1,383

    Piston speed would be lower in the 377 than in...

    Piston speed would be lower in the 377 than in the stock 400 stroke motor. With good heads, the 377 would produce less torque at lower engine speeds, which should be an advantage on a slick track. ...
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    593

    Sipping is a little different than grooving. ...

    Sipping is a little different than grooving. Hooiser's website has a tech section dedicated to sipping and grooving.
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    1,102

    I have often wondered if a single progressive...

    I have often wondered if a single progressive spring could be made to work on the rf. I think this could be a huge advantage in a limited late model class that does not allowed the stack spring...
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    1,611

    Sometimes a rear end waggle can be caused by...

    Sometimes a rear end waggle can be caused by inconsistent traction at the real wheals. This happens when the car hits a slick patch, and one of the rear wheels looses traction for a slight moment,...
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    1,160

    I have seen late model setup books that tell you...

    I have seen late model setup books that tell you to change out master cylinders for the front or rear as the track changes. rf cutoff valves are pretty common on a dirt car in any class. I don't...
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    1,057

    If the frame is not badly crinkled anywhere, a...

    If the frame is not badly crinkled anywhere, a good frame shop can fix it. The fix may involve first cutting some of the cage loose from the frame, and then re-attaching the cage once the frame has...
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    5,565

    When I watch the xr1 rockets and the Longhorns,...

    When I watch the xr1 rockets and the Longhorns, many of them seem to have the perfect setup, only they are loose on the very end of corner exit, I think weight on the left rear tube would help with...
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    View Post

    Avgas is said to be “dry” because it is checked very often for water contamination. If you add marvels to it, you will lower the octane. I have ran 50/50 avgas and non ethanol 93 octane mixes in...
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    1,857

    I tried the 280 cam when I ran a stock body...

    I tried the 280 cam when I ran a stock body class, and it gave up at about the flag stand on a 3/8 mile track. I also ran the howard's 110091-06 cam. The howard's cam gave up a little off the...
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    If you choose to lock it, go ahead and pull the...

    If you choose to lock it, go ahead and pull the advancing weights off. I have seen several locked distributors pull the pin that holds the weights off, and they brake the cap when they do it. I...
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    1,857

    My thinking is this: Start and restart rpm's...

    My thinking is this: Start and restart rpm's should be 2500-3000. The victor jr. intake makes the most low end torque of any single plane intake. I think I would run the victor vs any dual plane. I...
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    Modern dlm is all about momentum though the...

    Modern dlm is all about momentum though the cornerl Old dlm racing was about drive off of the corner. Now we need the cars to make it to the middle of the corner at high speed, and you have what...
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    Billet is dead on. Look at the dyno report on an...

    Billet is dead on. Look at the dyno report on an indy car engine, it makes insane hp at 18000 rpm, but they never quote the torque numbers, because they are likely under 300 ft. pounds at that insane...
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