Dropping A Twin-Turbo Hemi Stroker Into A 2010 Challenger SRT8 - Detroit Muscle S3, E14
musclewe're plugging our highly modded
Hemiin a project strake at the power stop ultimate challenge your giveaway car but that's not all we're gonna make our hyperventilate with some
turbos hey guys today we're back on the late-model
muscletrain we've begun building this
srt8to take on the biggest baddest kid on the block the reigning king of
Detroithorsepower is the
challengerhellcat touting 707 ponies at the crankshaft these things are no joke see what I mean so in order to stand a chance against that monster we have to create a monster of our own we started with a complete suspension rebuild including new coil over struts along with beefier sway bars the rear had to be swapped out as well along with a new set of much stronger half shafts and we partnered with power stop brakes on this car where we got this upgraded set of rotors along with their street and trackpad sets and high-performance powder coated calipers this is the foundation for our stray cat Mopar that we're giving away to one of you the powerstop ultimate
challengerall right guys we got our
challengerback here in the shop and on the lift and with all that suspension work we did a while back well a lot of its land right here on this Rolly cart but there's a reason why we're fixing a boat that big shiny piece of metal on to it well you guys might remember no sooner did we get our
challengerhere in the building guys down at engine...
power well they took out our
Hemiwell it's back and it's a whole lot different from where it started first thing they did was pull that factory engine out and we stole our car back from them once it was torn down it got a bath in the hot wash machines painted and then the goodies started to go in a forge crank h-beam rods and forged pistons on the bottom side a hydraulic roller cam along with a double road timing set round out the short block new lifters and retainers were set in place the factory heads were cnc ported then hand finished form or float a new spring pack was installed and they got a custom valve job to go with it with it all together they reinstall our intake with a nice new wrinkly black paint job and some awesome new billet valve covers now Chrysler really did their homework when designing this 6:1 for the
srt8one example of that are these stainless steel exhaust manifolds they're actually shorty headers and a lot of guys use these to upgrade the 5 7s and while we were at it we went ahead and used some ARP stainless hardware while this is out of the car we'll replace some of the wearable parts like this idler pulley along with the tensioner both of which we got from ContiTech it's a lot easier to replace these before the engine and induction system are installed and since they don't cost much you might as well do it now now right now this motor mount isn't really bad but it is showing some dry right so we're gonna go ahead...
and swap it out not to mention we're gonna be throwing some pretty serious power at it so we shouldn't take any chances we got some new mouths from rockauto.com and to swap them you unbolt these pedestals bolt the new ones on them and get them fastened right back in place the easiest way to install this engine is going to be on the front subframe from the bottom up a little bit and let it down kind of go from there the good news is that since this is a factory block with mostly factory dimensions we don't have to reinvent the wheel to get it installed now mark you need to come over here and look at this angle think about it 33:35 with everything at home we can bolt the subframe in and we're good to go since we're gonna be throwing a bunch of power at our
challengerone of the things we need to look at is the transmission now the factory nag one transmission that comes in those SRT eights is really good except when you start adding a lot of power so we turn to level 10 for one of their bulletproof
challengertransmissions one of the weak links in the factory transmission is the valve body what will happen is it'll leak which will lower your fluid pressure and eventually cause your clutches to slip now when those clutches slip that creates heat and that heat will destroy this conductor plate so what level-10 does is they completely redesign this valve body with higher line pressure and install a new conductor plate not only will this valve body...
not leak but it'll also send more fluid volume to that cooler keep everything cool and happy another weak point is this input hub assembly now what happens is this single crack and that'll cause the fluid to leak and cause your clutches to burn up what level-10 does is they include an upgraded one that's both heat and cold treated another key component that they upgrade are the clutches these are the factory organic ones and they upgrade to this high energy friction material that is resistant to heat they also include a torque converter that Specht out specifically for you depending on your needs and we chose a nine and a half inch three-thousand stall with a multi-disc lockup now these transmissions are built to handle 500 horsepower or you can have them build one just for you to handle all the way up to 1200 like the one we got just another tip these are also good for the magnums and the chargers so the next thing we're ready to do to our
challengers both on the flexplate now we went to Summit Racing and got us a billet unit that's gonna be more than strong enough and to keep it in place we got to sit of ARP fasteners we'll get these torque down to 70 foot-pounds then we can move on to getting that in much like the engine this trans uses a factory style housing which prevents you from needing any modifications to get it stopped after the break it's
turbotime then later we get a look at our stray cats competition whether your autocrossing...
drag-racing or out on an open track your factory wheel studs need an upgrade late-model and Pro Touring cars flourish at the autocross and track days but the stock wheel studs are not meant for this type of abuse now we've seen factory stud shear off on hard drag launches and fail under heavy cornering loads and that puts you in your car at risk c5 and c6 Corvette hubs are used in many hot rods those Pro Touring cars have aftermarket rear axles that have been updated to half-inch studs this kit from ARP allows you to use the same 1/2 inch lug nuts on all four corners they also come in two links in case you use wheel spacers or for the dragstrip swapping over to ARP half-inch wheel studs is a smart way to go man if heat-treated 8740 chrome moly they have a tensile strength of 200,000 psi just ream the hole to half-inch and press the new studs in as a bonus if you switch between street and race tires the rolled threads and nut starter on these ARP studs make that job way easier hey we're back with our giveaway
srt8and we're getting ready to start installing our power adder but before we can go too far down that road we have to get the car ready that's going to require that we've removed the front fascia along with the hood in order to make that big power number that we need to make to beat the Hellcat we're gonna add boost so we turn to Hellion Power Systems for one of its
turbokits now this is a complete kit that comes with everything you...
need to install it on your car the best part doesn't require any cutting or hacking of course the centerpiece of the kit is the
turbos now the base kit comes with
twin61 millimeter units which will provide you between 500 a thousand horsepower but we decided to upgrade to the 67 millimeter ball bearing units with the fancy billet wheel one of the most daunting things about installing
turbos would have to be the tubing but Helion takes care of all that with all the tubes pre bit and welded now these are all stainless steel and carry a lifetime warranty to keep that boost from running away from you the kit also comes with a boost controller
twin45 millimeter wastegates and this 50 millimeter blow-off valve all of these things are going to allow us to easily surpass the power output of a Hellcat but it's not all about peak numbers since
turbos are driven by the energy produced by your exhaust rather than driven by a belt which drops power from your engine like a supercharger it can actually improve your fuel mileage but let's be honest who really cares about that when we're gonna be making the cool no these things are gonna make all right before some of those big cool pieces go on a few small pieces have to go on to make sure this thing works properly one of them we got to change the map sensor another thing we've got to change the thermostat to a degree or so a little cooler and then we got to add this port which is gonna be the oil line supply for our...
turbos one of the things you have to do with this kit is shorten the studs that are on the collector flange here it just leaves a little bit more room when the
turbocomes and mounts up here there's no interference the way Hellion designed this kit is to have the
turbos mounted down low here underneath the car it's a little different than most
turbosystems you see where they're up in the engine bay the advantage of doing it this way is that the whole hot side is down under the car keeps the heat out of your engine bank but we did have to assemble it on the bench because the way everything fits so tightly you wouldn't be able to assemble it in the car a ratcheting wrench is really handy in this situation not a lot of room to get a socket on there alright guys the next thing that we're ready to do is install our air-to-air intercooler by spirito heading styles pretty easily you just slide it up here with a couple of brackets mouth just behind the bumper this big intercooler is a super important piece and that's why it comes with the Hellion kit it cools down the charge of air that's being sent to the intake cooler air means you guessed it more power up next it's the most powerful factory
musclecar ever built step in for a ride in the Hellcat now we've been involved with Moe car since the 70s actually we were messing with these cars when they were new I like the way the cars looked back when they were wooden they were new the styling...
cues and stuff on some of the cars are more aggressive than some of the other manufacturers just by the way they look the aggressiveness of the styling especially on a
challengerthe body lines on it the way the grill looks is had a meaner look to it than what some of the other cars on the road at the time had with the second coming of the
musclecar era manufacturers began offering their own modern rendition of the 60s and 70s era
musclemachines Ford has the Shelby gt500 Chevy with their Camaro zl1 and Dodge with their
srt8boy when they started coming out with the new retro
musclecars you know the Camaro and the Mustang and whatnot there had some pretty good numbers and we didn't have anything to run with it Chrysler didn't like their third-place title charge for perfection began so the
Challengercame out no 8 it entered the market in the highest in mode there's an SRT and not just a regular
challengerwith a v6 or something like that and they put the the highest performance variant on the market first they were playing catch up and they knew it but they did a pretty good job with that the biggest problem we had with this these cars is that they're heavy but they all suffer from land in 2015 the Dodge
ChallengerSRT Hellcat was born with 707 horsepower and 650 foot-pounds of torque this road rocket is the most powerful
musclecar in history the first time you step into the 700 horsepower it's an eye-opening experience it's both...
powerful street car I've ever driven it's a car you really got to pay attention to what you're doing when you drive it or get away from you the boys in
Detroithave outdone themselves it'll go from zero to a hundred miles an hour's if I asked you really can't keep up with it so this Hellcat might be considered a time machine it'll take you to a better place in your past no worries this thing's got plenty of horsepower to get you there up next we'll demystify the plumbing for a
turbosystem alright guys while you were gone we went ahead and mounted up all of our tubing of our system that's pretty simple it mounts to the
turbousing some high heat hose and the couple clamps now there's several of these in the system but all this tubing routes up front to our intercooler coming out of the intercooler it's more tubing and hoses and such that run all the way up to the engine and that's what's feeding the throttle body now one key parts of this system is this blow-off valve and what it does is whenever the
turbos are spooled up and the system is pressurized and you let off the gas well that pressure has to go somewhere this little jewel will release it to get our
turbosystem all plumbed up it took a lot of tubing and a bunch of clamps as well for those of you that are at home that may not know all the different types of clamps that are out there let's take a look at a few
musclepresents back-to-basics tips...
for the beginner gearhead the first type and definitely the most common are your typical radiator hose clamps this is a spring style clamp and you've probably seen these before and probably busted your knuckles trying to get them off this is a factory style clamp and they hold really well for radiator hoses heater hoses things like that a lot of you guys have ditched those spring style clamps for a worm gear clamp these are easy to use and they can be found anywhere but they only have so much clamping force when your plumbing a boosted application a regular worm gear style clamp will work just fine on really low boost but if you're jumping up to a higher boost like we are with our
turbos you need a t-bolt style clamp the advantage of the t-bolt style clamp the surface area is wider than a regular worm gear style and also the mechanism that it clamps with is different the worm gear can fail you've probably seen that if you've over tightened one of these before and with the tee-ball style clamp it's just a bolt and a lock nut so you can cinch it down really tight and you don't have to worry about that nut backing off when you're talking about really high boosted applications say like a race car or if you want just a really clean look you can go with a locking style clamp like this HD series from vibrant performance way this works is you have these ends that just weld into your cold side tubing slide over the collar and lock it in with the clamp...
even comes with a pin keep it all locked in another cool thing about these is once you get it all sealed up you don't have to worry about it coming loose and you've got about 10 to 15 degrees of movement on each side but when you're talking about exhaust clamps you need something that not only has clamping force but can also handle the heat like this sealing style exhaust clamp here this is really great for regular exhaust systems but when you're going to a boosted application you need to step up to this v-band clamp this is very similar to a t-bolt style clamp only there's flanges here that weld into the system and fit into these grooves in the clamp now this isn't every type of clamp that's out there but this gives you a pretty good idea for which one you need for your application and we just about got our Hellion
turbokit installed today but we still have a few minor things we're gonna have to address like the olan system for the
turbos and a little bit of wine but that's no big deal now we still have some upgrades we're gonna have to do to the car to support that big number that we're trying to achieve like the fuel system and the exhaust I'll tell you what I do believe this old car it's gonna be a whole lot of fun to drive we've been working on our own Dodge
Challengertoday but if you've got a Hellcat and you're looking at a few more horsepower to that supercharged 6-2
Hemithen you need to take a...
look at this this is the a Fe power momentum GT cold air intake it's for the 2015 and 16 dodge