FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: Thumperbird on March 17, 2020, 11:57:50 AM
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Game for you all, which winter modification/tweak is likely to provide the most benefit?
This is very subjective I know but what item or two do you think will do the most good and in 3 words or less why?
Replaced Autolite 3923’s with 3924’s, gap reduced from 45 to 40
Power valve restrictor opened up a couple thou to bring A/F from 13 to 12.7 ish (nitrous prep)
Increased lash by ~ .020” across all rockers, looking to quiet at least one slightly noisy roller lifter
Some minor custom carb spacer internal leak sealing to improve dual plane all the way to carbs
Verified/tweaked proper primary and secondary slot exposure/uniformity on all 4 corners x2
Added oil separator for pcv, had previously removed valve cover baffle for rocker clearance
Added 2nd A/F sensor so I can switch between sides for monitoring (both showing equal at idle)
New rear leaf springs with much more rigid isolators
New 1 1/8 diameter sway bar installed up front, stock was maybe 3/4"
Polished and a coat of wax over all
Finished N2O plumbing and wiring
Can already see vacuum is slightly better at idle and idle in gear seems a bit more healthy, no street time yet
Thanks.
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Polished and a coat of wax over all.
3 words: coefficient of drag ;D
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3 in one oil on the shifter . smooth , smooth . smooth .
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Nitro in tank ;D ;D
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Wow, can't remember the last time I thought about or saw a can of 3 in 1 oil, is it still around? What makes it 3 in 1?
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Yes, 3-in-1 is still around. Hit your local Lowe's or HD. I always have it on hand since you can put that sh*t on anything.
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Yes, 3-in-1 is still around. Hit your local Lowe's or HD. I always have it on hand since you can put that sh*t on anything.
3-in-1 is owned by the WD-40 Corporation. I doubt it's gonna disappear any time soon.
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The only thing that makes cars for faster???
Stickers, stickers, stickers.............
;D ;D ;D
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Obviously the coat of wax. Shiny = Good
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An under-the-front end and engine bay belly pan, or air dam by another name, as found on a lot of new cars these days. That and any front spoiler designed to block underneath-the-bumper airflow.
Funny, but I do now remember and old Car Craft (?) article where they did a lot of temporary changes to a drag race BBC Chevelle to see what better aero would do. They used cardboard and tape IIRC and some screwed-on aluminum sheeting to cover almost the entire bottom. Amazing but they did improve the mph numbers more than a few but I don't remember if the e.t. decreased much at all.
This not that article but.....
https://www.hotrod.com/articles/hdrp-0609-aero-tricks-tips/
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An under-the-front end and engine bay belly pan, or air dam by another name, as found on a lot of new cars these days. That and any front spoiler designed to block underneath-the-bumper airflow.
Funny, but I do now remember and old Car Craft (?) article where they did a lot of temporary changes to a drag race BBC Chevelle to see what better aero would do. They used cardboard and tape IIRC and some screwed-on aluminum sheeting to cover almost the entire bottom. Amazing but they did improve the mph numbers more than a few but I don't remember if the e.t. decreased much at all.
This not that article but.....
https://www.hotrod.com/articles/hdrp-0609-aero-tricks-tips/
Hot Rod did a similar article on an early '80s Camaro, but it wasn't a drag car. It did make a difference in the CD, but like you, I doubt that turns into an advantage in the 1/4 mile. If it did, you'd see a lot more Stock and SS cars with factory front air dams on them, but you never see them. I'd considered taking the one off of my car, but I like the looks of it, so it stays.
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I just finished the repair on the dragster nose after crunching it good a couple of years ago. Without the duct tape all over it, I expect to pick up a tenth at least ;)
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I just finished the repair on the dragster nose after crunching it good a couple of years ago. Without the duct tape all over it, I expect to pick up a tenth at least ;)
Yeah, but with a good wax job you'd pick up at least 3 tenths!
LOL
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Depends on the color
Ronnie Sox always thought that white was faster. I guess something had to make up for his sucky shifting ability ;) lol
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Sway bar mod.
3 words: Actually Feel It
Heresy! :D
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Black painjob makes things faster thats a fact sun heats the surface
and makes it less windresisting
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Pretty sure I'm going to have time on my hands over the coming weeks, I can see a second coat of wax happening.
Car is nearly black, 2 coats of wax, and I am attempting to polish some shitty soft aluminum valve covers, should be good for lots of speed it sounds like. Worst decision I ever made, fabricated aluminum polished valve covers, can literally not touch them even with a soft cloth without scratching, junk.
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I just finished the repair on the dragster nose after crunching it good a couple of years ago. Without the duct tape all over it, I expect to pick up a tenth at least ;)
Yeah, but with a good wax job you'd pick up at least 3 tenths!
LOL
It's finely buffed with Turtle Wax. Most importantly, there's a spare can of the Krylon purple metal flake for the next crunch :)
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3in1 oil! That's what kept the bearings in the blower housing of my swap coolers lasting forever.
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What about a set of Splitfire spark plugs... you hit your passing gear and your gone.
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"Increased lash by ~ .020” across all rockers, looking to quiet at least one slightly noisy roller lifter"
Okay, since nobody asked, how does increasing the lash by .020 quiet a noisy lifter? That's a huge lash increase; maybe you meant tightened the lash by .020?
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Was never one for worrying much about proper lingo, my bad.
I compressed the hydraulic lifter piston an additional ~0.020" by turning the adjustable rocker screw clockwise ~ 1/2 turn. I've read on many a site that Morel's seem to prefer more loading than manufacturer recommendation, I'm trying to find out if that is the case for my application.
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I think you need to wax the lifters, that'll fix it!
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Hey, drain all the rear end fluid on your final run. Dump at least 1 quart out of the engine or tranny.
Honest, when we raced long ago a Union Grove, WI my younger bro, on a visit to the Ford Pro Stock pits, did ask one fellow with Dyno Don's Pinto (we found out later it was Kaase) why they were quickly draining the rear gear fluid and some from the Lenco. Jim was pretty persuasive so the answer came back: the competition was so close they wanted every advantage. Guess what? Dyno won the final round in a real squeaker.
Not something for the faint of heart, eh?
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At Mission Raceway the year before anyone had run a 9 second pass in Stock Eliminator there were several cars trying. One Hemi Cuda had run 10.10 and on the next run it was on a good pass but went "bang" well before the finish line and left parts on the track. The track worker picked up half a connecting rod and no oil whatsoever. I looked at the car in the pits and the hole was in the bottom of the sump and no oil on the underside of the car. He'd drained the oil before the run! Might have worked if he was pitted closer to the staging lanes or if it was an 1/8th mile.
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At Mission Raceway the year before anyone had run a 9 second pass in Stock Eliminator there were several cars trying. One Hemi Cuda had run 10.10 and on the next run it was on a good pass but went "bang" well before the finish line and left parts on the track. The track worker picked up half a connecting rod and no oil whatsoever. I looked at the car in the pits and the hole was in the bottom of the sump and no oil on the underside of the car. He'd drained the oil before the run! Might have worked if he was pitted closer to the staging lanes or if it was an 1/8th mile.
That though sounds like a dumb mistake.
Famed Texas fuel racer Gene Snow one time made a F/C run, and won, with zero oil in the pan! He noted on the burnout no oil pressure but made the run anway as gauges on a F/C often read incorrectly anyway.
Seems he had to use a pickup crew of locals at the track to advance to the next round and guess what, one of those dummies forgot to add oil! Amalie Oil was his big sponsor back then and ran numerous adds indicating their oil was so good that the engine wasn't even damaged, which was true.