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pacracingsprings
Приєднався 2 кві 2009
High performance drag racing springs and components.
Відео
Trail Series UTV Spring Kits for the Yamaha YXZ1000R
Переглядів 6025 років тому
Get the ride you're looking for with our Trail Series UTV Spring Kits for the Yamaha YXZ1000R. Available for terrain specific applications so you can rest assured that you're getting the most out of your machine's shocks no matter where you ride. Available for YXZ, RZR, X3 and more!
Trail Series Dual Rate UTV Spring Kit Installation
Переглядів 4065 років тому
Marty is talking all about dual rate spring setups and explains why adding preload to get some height back is (most likely) having a negative effect on the ride. Grab a pen and take some notes! Download the Spring Rate Chart he references right here: www.racingsprings.com/media/technote/Suspension_Spring_Stacker_Chart.pdf
Understanding Dual Rate Spring Setup for UTV Shocks - PAC Racing Springs
Переглядів 24 тис.5 років тому
Our expert tech Marty is talking all about true dual rate spring setups and why the factory springs on your shocks probably aren't dual rate, even though you've got two springs on them.
Tender Springs, Single and Dual Rate Setups for UTVs by PAC Racing Springs
Переглядів 1,4 тис.5 років тому
Get all the info you need to know about PAC Racing UTV Spring setups from tender springs to dual rate UTV spring setups as well as what information we need from you when you call to order a UTV Spring kit.
World of Outlaw Sprint Car Series at The Dirt Track at Charlotte
Переглядів 835 років тому
PAC Racing and Schroeder Series Torsion Bar racers do battle on The Track at Charlotte during the 2019 World of Outlaw Sprint Car Series Patriot Nationals.
Schroeder Series Torsion Bars and Sway Bars - How It's Made
Переглядів 13 тис.5 років тому
Take a behind the scenes look at the manufacturing process of our Schroeder Series torsion bars and sway bars. From raw material to the shipping department, our bars are 100% made in America.
Valve Spring Tech Specs and What you Need to know - PAC Racing Springs
Переглядів 119 тис.5 років тому
Class is in session as Marty Zimmerman gives you a deep dive into the world of PAC valve springs. He's talking lift, height gauges, RPM, coil bind, solid height and much more.
PAC Trail Series Sway Bars Vs The Competition
Переглядів 9735 років тому
Check out how PAC Racing Trail Series sway bar kits stack up against the competition. From better materials to better manufacturing process' and a more durable design.
PAC Racing Valve Spring Height Guages
Переглядів 3 тис.5 років тому
Precision matters when you're measuring the height of your engine's valve springs and PAC Racing's valve spring height gauges ensure you get an accurate measurement every time.
LS on Head Valve Spring Removal Tool
Переглядів 3,7 тис.5 років тому
Our convenient on-head valve spring removal tool saves you time and effort by allowing you to remove and replace valve springs without having to remove the cylinder head from the engine.
Valve Spring Solid Height or Coil Bind Height Checker - PAC Racing
Переглядів 3,5 тис.5 років тому
Our PAC Racing valve spring solid height checker allows you to precisely check the solid height or "coil bind" of your valve spring.
Valve Spring Tools and Accessories by PAC Racing
Переглядів 5295 років тому
Valve Spring Tools and Accessories by PAC Racing
Factory Replacement UTV Spring Kits by PAC Racing
Переглядів 1105 років тому
Factory Replacement UTV Spring Kits by PAC Racing
NASCAR Cup Flat Tappet Engine Test Spring B
Переглядів 2195 років тому
NASCAR Cup Flat Tappet Engine Test Spring B
NASCAR Cup Flat Tappet Engine Test Spring A
Переглядів 1435 років тому
NASCAR Cup Flat Tappet Engine Test Spring A
KOH Rock Crawl on Chocolate Thunder 2011
Переглядів 135 років тому
KOH Rock Crawl on Chocolate Thunder 2011
High Speed Video Vintage NASCAR Engine 7000 RPM
Переглядів 4805 років тому
High Speed Video Vintage NASCAR Engine 7000 RPM
PAC Racing Off-Road Product Highlights
Переглядів 175 років тому
PAC Racing Off-Road Product Highlights
Dirt Car Right Front Suspension Spring
Переглядів 1075 років тому
Dirt Car Right Front Suspension Spring
Factory OE Viper Beehive Spring 6,300 RPM
Переглядів 1545 років тому
Factory OE Viper Beehive Spring 6,300 RPM
Beehive Spring Test Viper Engine 6,300 RPM
Переглядів 1215 років тому
Beehive Spring Test Viper Engine 6,300 RPM
NHRA PRO Stock Triple and Dual Spring Comparison 10,600 RPM
Переглядів 945 років тому
NHRA PRO Stock Triple and Dual Spring Comparison 10,600 RPM
HIGH SPEED VIDEO PAC 1354 at 10,600 RPM NHRA PRO STOCK
Переглядів 1775 років тому
HIGH SPEED VIDEO PAC 1354 at 10,600 RPM NHRA PRO STOCK
TRIPLE NHRA Pro Stock Valve Spring 9800 RPM
Переглядів 2715 років тому
TRIPLE NHRA Pro Stock Valve Spring 9800 RPM
Sir , any idea for motorcycle engine ??
I have been running 40th to coil bind , been ok for a while now , after watching this I am a little worried, my thought was , closer to coil bind may help against valve spring vibration etc , I wonder if anyone else has done this ?
This is what valvtrain stability looks like
Didn’t think the spring turns in the housing
Tough crowd in here.
Looks good!
Ive built many heads and race engines..the "right"spring is what ya gotta have.no body wants to loose a valve in their pride n joy motor due to springs or wrong springs.dropped valves busted pistons cracked blocks ive seen it all.
Good info thanks
How about a episode on measuring installed height DOHC direct acting (bucket tappets) applications.
Will the PAC 1219 beehive spring be safe to run with an LS3 BTR stage 2 cam? .620/.605 lift
They don’t know or care. You better bring all your measurements and hardware or else you ain’t getting any help. Didn’t you hear the little man in the video!!!
@@user-jr2gt9nw8b lol yea, apparently 🙄
Does PAC fabricade beehive Import springs for 16V 4 Cyl engines Rev 9500rpm for circuit racing NA engine or only for V8 engines?
Hey, what about us LT1 GV Silverado guys? Where dem heads cuz! Looks like people holding out on us.
Just got your 1218 for my 03 z06. Sure hope 1 doesnt break
can this tool be used for small engines?
👍👍
9:50 "Everybody knows about flat tappets..." What's your theory for the current epidemic of flat tappets & cams? Oil? Zinc? Soft metal? Chinese parts? Bad lifter crown machining? Aliens?
havent seen a lot of failures like this lately. that was a bigger concern about 10 yrs ago. if i do see them someone didnt keep the engine running at the RPM they were told to by whoever sold them the cam
My cam is . 540-.560. I'm looking at 1218 & 1219 springs. I like the higher seat pressure of the 1219, but would I be better off with the 1218 shimmed tighter than the 1.8 installed height PAC recommends to get closer to coil bind for more pressure on both the seat and over the nose? How do you use the spring rate to figure spring load at a specific lift?
Spring rate is normally in lbft per inch
spring rate X full camshaft lift (i.e. .540-.560) + installed seat pressure = open pressure at specific cam lift
1218 spring 313 spring rate X .560 lift + 130 seat pressure = 305 open pressure @ .560 lift
I can't make purchase on site?
I really dig this guys straight forward though guy delivery, I really do! It was straight forward and to the point and tons of energy! He hit on a lot of points very quickly and was very memorable. My only notation is that he said HEIGTH several times....it is HEIGHT!!!!! But I have OCD....so there is that. PAC is my go to for every engine build!!
Do all vp's rotate??
Good question
amazing how fast they rotate too...
It sounds like Boeing 737 jet engine takeoff. Actual hearing of 5000 RPM.
After reading All of the comments some of you guys are like little girls looking at what tampons or pads to buy ... put a panty shield in your underwear if your pussy hurts
I need some valve spring that will work in a stock ls1 head with ls6 cam . I need a dual valve spring set up for some peace of mind when a spring breaks . Do you have some ? I ask a few shop and they’re more interested in selling me junk that doesn’t work .
Definition of the terminology used would help a great deal. Otherwise, all the info anyone could need.
Can I run a cam lift of 0.660 when max lift of my spring is 0.660. Or do I need a little safe space like 0.657 lift. Thanks appreciate. Regards S Erasmus
Yes. It's better to be as close to max lift as possible for springs so that you're (typically) .050 or so (he says they recommend .060 to .080 for their springs in the video) from coil bind at max lift. That actually makes your valvetrain more stable/safer than using a spring with a much higher max lift than your cam has.
Blah blah blah blah blah ...
It would be extremely helpful if you zoomed in more
Hello
Hi I have ford edelbrock victor jr and I need springs kit for it
Real practical information!
Worked at Peterson Spring Southfield plant, made thousands of these springs many years ago, now live in Charlotte NC, was kind of surprised to see a video about them on UA-cam, is that a Larson your using there because that's what it looks like
Did you think people would think you were cool and this comment would make you famous? I hope not... because I assure you it didn't work
@@jeffpeterson653 No
LOL, honestly I thought it was cool to work for PAC but I didn't think it made me cool
What you you are suggesting is of course laughable
@@donesper2070 I was just kidding lol
What if your valve spring pressure is to weak
Valve float. You’ll lose a ton of power because exhaust can’t escape fast enough.
Woow
American junk.
Good information
Two days ago, I ordered some PAC 'Hot Rod' SBC springs from Jeg's. It was a pretty easy choice for my application, because no one else seemed to offer what I needed. I'm putting 1.6 roller rockers in an L98, which is a low-RPM engine, and I could probably get away with using fresh stock springs. But I think Chevy probably specs the stock springs as light as possible for fuel economy, so I wanted uprated springs for some valve train durability and stability head room. Shopping primarily Summit and Jeg's, I found nothing comparable from the usual sources like Comp, Edelbrock, or whatever. Maybe I just missed them somehow, but I looked pretty hard and long. Though I'd never heard of PAC (I'm new to the SBC world), I went ahead and ordered their Hot Rod springs. After watching this video, I'm confident in that choice.
Sbc is your downfall. I'm sure you've not enjoyed or experienced anything fast or that actually sounds good. So it's not entirely you're fault. You are forgiven. 🤠
@Jeff Peterson the L98 is legendary. Was smashing 911's in its day
this is one of the best videos on what is needed to install the right valve springs and the right way
Best Ive ever heard 👍👍😎
What about off road guys ?😁
What about 'em?... Fuck 'em!!!
All depends on the rpm’s you’re pushing and how long you’re holding it there.
Can you tell me for quads?
Is HEIGHTH a word? It is just height right?
find a new hobby
@@hotrodray6802 you find anew hobby
@@sexyfacenation NO YOU!!!!
@@Anarchy-Is-Liberty ok. Got me good there. Well played sir
I had to subscribe the scupsctibers were at 666
I've watched this video probably 20 times highly informational
What do u suggest for a stock 2015 GMC Yukon to up grade on sprigs ?
Put stock springs back on!!
Very passive aggressive. Relax a little my man.
I’m looking to change springs & rockers on my 94 Chevy impala SS. Stock cam & looking to install beehive comps with 1.6 RR. Im very curious & as a mechanic Iv only done this in school. My lt-1 would like a change. 105,000 miles on her & I plan on doing it under the hood. I can’t find any videos showing you on how to do it with the engine under the hood. That tool looks like it would make life easier instead of the one I have. This video is very informative & I just subscribed 💯🏴☠️🇺🇸
look up putting a 1/4 inch rope into the combustion chamber through the spark plug hole.
leak down tester throws compressed air in there and holds up the valve.
That was short, sweet, and to the point. Not to mention, very informative. The best compliment I can pay you is to subscribe. I don't need to turn the high rpms for index racing and the limited lift of my heads (.600"), but I since it is a street\strip car, getting more hp with more rpm has a certain primal appeal. No wonder Trick Flow chose your springs in the GenX 225 "as cast" 13.5 degree heads for SBCs.
Boing!
He’s pissed it was his turn to make the video.....lol