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A. P. Motorsports
เข้าร่วมเมื่อ 8 ธ.ค. 2009
Answering all your strange automotive performance questions with the best accuracy I can
Ambient temperature changes 1/4 Mile time
Some draggy times I recorded in my truck. I was curious as to how much outside temperature would change the 1/4 mile time. First run was done at 73 degrees, second run was done at 48 degrees. I will probably test again when it gets back into the hundreds. Both test were performed at same place. 25 degrees made a .3 and 2mph difference.
Test vehicle is a 2012 Chevy Silverado 1500 5.3L 4x4 CCSB 174k miles-
K&N CAI
ARH long tube Headers
Corsa Exhaust
Black Bear Performance Tune
4.10 gears
305/65R18 Toyo MT tires
Test vehicle is a 2012 Chevy Silverado 1500 5.3L 4x4 CCSB 174k miles-
K&N CAI
ARH long tube Headers
Corsa Exhaust
Black Bear Performance Tune
4.10 gears
305/65R18 Toyo MT tires
มุมมอง: 96
วีดีโอ
F body C6 Power Steering Pump Conversion - Before and After
มุมมอง 1833 หลายเดือนก่อน
Converting the power steering pump on my 2002 Pontiac Trans Am to the C6 Corvette power steering pump. I also removed the factory power steering fluid cooler which some people claim actually heats up the fluid. Decided to get a fluid temp reading after a dynamic test drive before and after installing the pump. Fluid temperatures dropped 40F degrees! Since I did both the pump change and cooler r...
Hellcat Air Box - Before and After
มุมมอง 1254 หลายเดือนก่อน
How to install, Before IATs and After IATs of the Hellcat Air Box installed on a 2019 Dodge Challenger R/T 5.7
LS1 Coolant Bypass Mod for Throttle Body - Before and After
มุมมอง 2794 หลายเดือนก่อน
Showing how to bypass the Coolant from going to the Throttle Body. The coolant is originally ran through the throttle body to warm it up in cold environments and prevent freezing on long drives. If you only drive your car in non freezing temps or live somewhere its summer year round like I do, then all it does is make your throttle body hot, increasing your Intake air charge temperature. Use a ...
Tire repair plug from home the proper way
มุมมอง 3795 หลายเดือนก่อน
Tire repair plug from home the proper way
Throttle Body Coolant Bypass Before and After
มุมมอง 6076 หลายเดือนก่อน
Throttle Body Coolant Bypass Before and After
Waverunner Free Flow Exhaust Before and After
มุมมอง 1.1K6 หลายเดือนก่อน
Waverunner Free Flow Exhaust Before and After
Coolant Temp Fluctuating on Warm Up 2007-2013 Silverado 1500
มุมมอง 1227 หลายเดือนก่อน
Coolant Temp Fluctuating on Warm Up 2007-2013 Silverado 1500
LS1 Bald Eagle cam 1/4 mile - 12.54 @ 110
มุมมอง 3729 หลายเดือนก่อน
LS1 Bald Eagle cam 1/4 mile - 12.54 @ 110
2800 vs 3600 Stall Converter Shift RPM drop difference
มุมมอง 6K11 หลายเดือนก่อน
2800 vs 3600 Stall Converter Shift RPM drop difference
Silverado Rear Gears Before and After (3.42 vs 4.10)
มุมมอง 45Kปีที่แล้ว
Silverado Rear Gears Before and After (3.42 vs 4.10)
2002 Pontiac Trans Am WS6 - Bald Eagle Cam, Long Tubes and TSP True Dual Exhaust
มุมมอง 7K2 ปีที่แล้ว
2002 Pontiac Trans Am WS6 - Bald Eagle Cam, Long Tubes and TSP True Dual Exhaust
Bald Eagle Cammed LS1 Trans Am Test and Tune
มุมมอง 1.4K2 ปีที่แล้ว
Bald Eagle Cammed LS1 Trans Am Test and Tune
Bolt on 2012 Silverado 4wd Test and Tune
มุมมอง 4442 ปีที่แล้ว
Bolt on 2012 Silverado 4wd Test and Tune
Chevy Silverado long tube headers before and after
มุมมอง 42K7 ปีที่แล้ว
Chevy Silverado long tube headers before and after
Pacesetter vs American Racing Headers Chevy Silverdo Corsa exhaust
มุมมอง 24K7 ปีที่แล้ว
Pacesetter vs American Racing Headers Chevy Silverdo Corsa exhaust
Chevy Silverado long tube headers before and after
มุมมอง 214K9 ปีที่แล้ว
Chevy Silverado long tube headers before and after
Chevy Silverado Corsa db exhaust before and after
มุมมอง 32K10 ปีที่แล้ว
Chevy Silverado Corsa db exhaust before and after
Wow!!! How informative!!! I will always remember this
im trying to figure out the best option for me. Its my first time looking into upgrading gears 😅. But i bought my 03 avy w 20"s already on it . Would the 20s help rpm wise if i went to 4.10s?
It depends on what the outer diameter is of the tire, not the wheel. This vehicle stock had 31" tires w/stock 18" wheels and 3.42 gears. I went up to a 33" tire w/stock 18" wheels and 4.10 gears.
Awesome!
Might be a dumb question but do you have to tune your truck after upgrading your gears ?
You do, to recalibrate/correct the speedometer
I like that you got feedback, made a video, explained your original thesis and how your feedback clashed with said thesis and then went and applied the scientific method to test this thesis to see what's correct and ALL in a video under three and a half minutes while retaining good quality. You fucking won TH-cam!
Sounds mental
All that time and money for .5 tenths of a second? Hell you coulda just went with an inch taller tire for that!! :)
@km6344 I do agree. To only do gears for the gains in quarter mile is not worth it. My diff turned into a Bluetooth differential, so while in there replacing it, we decided to go gears too.
Dude, nice upgrade. I’ll have to add it to the list
More growl. Love it!
nah GM of the past just solved the fuel crisis. infinity gasoline
𝕷𝖔𝖛𝖊 𝖙𝖍𝖊 𝕿𝖗𝖆𝖓𝖘 𝕬𝖒, 𝖘𝖔𝖚𝖓𝖉𝖘 𝖘𝖎𝖐𝖐
my brother got that on his Caprice for no reason he doesn't even race I'm thinking of stealing it of his car and putting it in 2000 z28 😂😂
@eduardo-l7m1i Try it! I plugged it in to my Silverado for fun just to see what it would sound like
I have a 71 Chevelle, 454 (400-450hp), 200-4r, and a 3.73 posi out back; Is a swap to a 4.10 even worth it? It is strictly a street car.
If it's a street car, probably not. And with the torque of a 454, the 3.73 might work better. This is a heavier vehicle with just a LS 5.3 which is probably why it benefited from the gears
It makes a megaphone effect with a bigger exhaust tip mostly noticeable with diesels
Hey, Is it still good ?
So far, it is still holding
Finally a video that explains and shows the difference
Did you also swapped front differential gears?
Yes
Would’ve been better to hear the difference with muffler delete lol
Think 4500 is the winner
She sounds amazing!
I had a 4.8 vortex with cherry bb extreme dual out with 2” pipes and 4” tips, I had them changed out for just the 2” pipe and made a huge difference in sound. Not as loud or crackling. But was a good sound.
Is there noticeable performance difference?
So far there isn't any that I can tell. If there's any gains, I haven't felt it. I kinda just did it as a free bee, and since it's summer year round here, I need all the cooling mods I can find.
Thank you!!! I appreciate it.
We're can I find a set like that?
jegs.ork2.net/c/5442607/487382/8482 has them. Part Number: 129-40050
Mississippi right here ! Fbody ❤❤
Oh yes there are noticable difference 4" has a deeper tone
Just do engine upgrades cam, intake, injectors, throttle body, headers, dual exhaust. 130 hp increase. The lower gears actually work better
It's already got intake, headers, exhaust and a tune. If I ever do a cam I will install a very small cam as I still do alot of towing with this.
Hi mate. If you squeeze the black pouch side, it splits open to the white side and you can mix it in the pouch. Thanks for the vid.
Thanks Roll race 60 120 stock better
Hello man, i see you made this video few years ago but maybe since then you find out new things. I have a Opel Zafira B 2008 1.9 diesel and i want to change just a little the sound that muffler exaust makes from manufactory. Add a little bass to it. Not something loud because is not racing car but i drive it like one😊. I want just by adding a tips in the end of my pipe witch i have to take it out each year when i go to teating for emissions. Here you are not allowd to bring any changes to the car otherways you dont get accept to drive it. Maybe you can teach me something or someone that read this. Thank you
Tips more just change the tone of the sound, not the volume. If you can't hear it very much to start with, then you will not be able to hear a tone change from different tips. I suggest changing the Muffler or if it has a resonator to change that.
Whats your top speed at what RPM?
I have the tune limited at 120mph. I don't know what rpm it hits at that speed though
Shaved a lil time off
DA definitely does matter
Nice video 🔥
change your earl on time...
It did look at little bad in there, I am the 4th owner of this car and you can see previous owners didn't change it too often. It was already 15 years old when I got it.
@@APMotorsports0 I feel that I dealt with the same thing when I got mine the day I bought it I just got it home after 5hr ride and it said change oil and it was black as hell but now we got her running great and great oil pressure
I have 2.73's on my c10 lol I can do 0-60 in 1st gear.
lol I had 2.73s in my camaro and I remember first gear felt eternal I was at another stop sign before second would engage
@@esdrasmontoya4740 Yup sounds about accurate.
ROLL TIDE!
damn that thing accelerates
So I have an 09 tahoe with short tube headers. Long story short, highly don't recommend. If you want performance benefits get long tubes. If you don't care about performance, but like the sound, get long tubes. On my tuck it sounds the same as factory manifolds and no performance added. There probably is better exhaust airflow, but in real life, you can't tell.
I'm not sure who, but someone a long time ago made an article of factory vs short tube vs long tube headers on an engine dyno. They said that short tubes was maybe 8hp gain at peak, and then long tubes was 25hp gain at peak but 45 hp gains down low. This was my friends truck, and he had the short tubes laying around, so we installed them for the sound gains. But yes, I agree, short tubes have very little sound difference and almost no performance difference.
Vrmm vrmm
Isnt the trans am straight piped too?
bet it sounds better in person tbh
hows it holding up
It's held up so far. We don't put alot of miles on it cause it's the church's bus but it's still been 5 months so far.
ThanK you thank you thank you, finally proof that tips do change the sound
Lets gooooooo!! Looking forward to a breakdown of the results..some 0-60 testing would be nice as well!
@@0P0M0 perhaps we can convince Agent P (A.P. motorsports) to do some footage on the challenger.
If we can try to get some more results, we will post them. Unfortunately, I didn't really get much results with this one as far as testing Intake Ait Temps. I do still think the mod can be beneficial, though
Whats the purpose of the hellcat air box? My thought was the hellcat air box would have lessened the AIT. Judging by the video, it doesn't look like it changed the temp. Is there a way to test the volume of air taken in by the air box?
I thought the "tube" portion would act as a Ram Air and cool off Intake Air Temps but it didn't do that at all. Theoretically, it brings in more volume of air but I don't think it's even necessary in a 5.7 application where as the Hellcat requires the extra volume. Still a cool and affordable mod I think, though
The difference is when it's been heat soaked from idling then start accelerating quickly, the IAT will drop much more rapidly than stock helping reducing knock from high load and high IAT events. The "ram air" instantly fills the airbox with near ambient air instead of vacating the heat soaked air volume. He should've made a video of the car idling for 10 minutes then put it in drive and accelerate quickly to show how quickly or slowly it takes the IAT to return to near ambient.
@ThisisForTheTV I didn't think about this. That would have been a good test. Thank you for the input!
Idk about you my man but to me its a huge difference. The 4 inch tips sound more deeper aggressive and aportive.
Where did you buy the headers from?
@gavinpetty07 I purchased them from www.texas-speed.com/. ARH does make all their headers to order, mine took about 3 months to come in.
Would like to see a comparison for towing. I have a 2012 Silverado 4.8L and it struggles. I plan to swap in a 5.3 crank/rods and 4.10's.
ITS NOT THE TIPS!!! Its the placement of where the exhaust comes out. Notice how "no tips" essentially turns it into a dump exhaust which reverberates under the car, where as the tips stick it behind the car for a smoother sound....
I do think placement is a contributing factor, too. A lot of exhaust that is "dumped" under the vehicle sounds deepish. And I have heard some that the exhaust extends way past the bumper, and it screams. I wish I could do a test with the same exhaust setup and same tips but just have one "dumped" under the vehicle, and then another extended like a foot past the bumper.