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Discussion Starter · #1 ·
Soon to get tuned in two weeks... car has cat delete muffler delete lmi intake 100mm throttle body and ported snout. Stock pulleys. Upgraded coils. What do u think I’ll make. I do use custom mix of fuel
 

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Soon to get tuned in two weeks... car has cat delete muffler delete lmi intake 100mm throttle body and ported snout. Stock pulleys. Upgraded coils. What do u think I’ll make. I do use custom mix of fuel
Redeye, or regular Hellcat? If just hellcat manual or auto? Without going up on boost your not going to gain a whole lot unless you plan on using a high octane fuel like 110 and give it a bunch of timing but be careful there as one bad detonation event will ruin your day. DONT desensitize your knock sensors, their going to be your only savior.
No way 750 wheel on stock pulley combo
 

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'23 Redeye Jailbreak
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If the car hasn't been tuned yet, the car is running at or under stock horsepower. All those bolt ons with no tune = running rich and it's just retiming itself and likely just wet fouling plugs all day. All those bolt ons don't do much of anything, as the air mass is kinda determined by the blower size and shoving more fuel in it is really, really doing nothing. The stock TB doesn't open past 75% on our cars as it is. Slapping a bigger one on there is not going to do anything unless you have a place for all that extra fuel+air to go. AKA ported heads, larger blower or some such. This isn't a NA 4.6L 3v Mustang engine that came with an anemic TB.

The only power gain you would be getting was from whatever fuel cocktail you're using... which is also an equally bad idea. As again, if it isn't tuned for it, the car will actively try and just blow it out the tailpipe as it tries to maintain the tune's parameters. Now, after it's tuned, there's some gains to be had, but we're talking like 10-20hp (more on e85)... not 100 :)

Also, don't forget that running catless is illegal and can get your car impounded. Running a rich, performance fuel is kinda like zipping past the police station at 55mph in 1st gear as you can smell it from 20 cars away without the cats on. I personally think this build of yours is a bit misguided. It's either not going to work like you think it will, or every cop in eyeball range is going to know you're running catless. At some point, you're going to run across a cop looking to bag a driver on a $6,000 fine ($3,000 per missing cat).
 

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Charger SRT Hellcat
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Welcome to Hellcat.org

The mods you have installed would be "supporting" parts. Tuning usually involves a Pulley mod.
Are you have more parts installed at the shop when you have your car Tuned?

Since this is your 1st thread and posts please tell us about your car. Maybe some pics too.
(New Member Introduction)

Linda :)
 

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Challenger SRT Hellcat
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675?
 
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I’ll post up my dyno sheet when I have it.. no way my car is running under power if I pulled on a red eye 😂
The thing about building cars... it's all governed by the laws of physics. If you have a container that can only hold X amount of volume... if that container is full, trying to put more stuff in it with a larger funnel (throttle body) isn't going to do anything. In stock trim, the Hellcat's throttle body is already more powerful than what the car can use. If you don't believe me, have your tuner show you the throttle body settings in the tune and note how the factory setting has it set at 75% max open.

Thus, putting a larger throttle body on a car with stock heads and a stock blower is a grandiose waste of money. That's because, coupled with injectors you don't need and higher octane fuel you don't need, and the result is the computer is literally dumping that stuff right into your catalytic converters.

Now, if you add components that requires the additional flow and octane rating, that would be a different story. Higher octane does not = more power. Not on cars made for 93 fuel. The higher octane is needed for reducing knock under high compression. So, if you are running a pulley, you can run higher octane instead of doing an E85 conversion. The only problem with that, is the fuel is about 5x more expensive and you have to have a very good tuner to tune the engine for high octane or, quite literally, KABOOM at WOT. FWIW, 104 octane for me is about $14/gallon. I have a race car that runs on it. Expensive stuff.

Every mod you listed is reducing horsepower and efficiency on an untuned stock component vehicle. So, if you pulled on a Redeye, they lifted or something. The adaptive PCM in your car is simply adjusting timing for the rich environment you're creating so that it runs within expected parameters. Without the tune and without actual mods, the car is making no gains at present. For example, the LMI is a good intake, it's just that the Hellcat isn't an NA or intercooled car and a reduced IAT does nada since the air mass is after cooled. Folks like us with aftermarket CAIs do it for the sound, as they don't produce any HP whatsoever.
 

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Discussion Starter · #11 ·
The thing about building cars... it's all governed by the laws of physics. If you have a container that can only hold X amount of volume... if that container is full, trying to put more stuff in it with a larger funnel (throttle body) isn't going to do anything. In stock trim, the Hellcat's throttle body is already more powerful than what the car can use. If you don't believe me, have your tuner show you the throttle body settings in the tune and note how the factory setting has it set at 75% max open.

Thus, putting a larger throttle body on a car with stock heads and a stock blower is a grandiose waste of money. That's because, coupled with injectors you don't need and higher octane fuel you don't need, and the result is the computer is literally dumping that stuff right into your catalytic converters.

Now, if you add components that requires the additional flow and octane rating, that would be a different story. Higher octane does not = more power. Not on cars made for 93 fuel. The higher octane is needed for reducing knock under high compression. So, if you are running a pulley, you can run higher octane instead of doing an E85 conversion. The only problem with that, is the fuel is about 5x more expensive and you have to have a very good tuner to tune the engine for high octane or, quite literally, KABOOM at WOT. FWIW, 104 octane for me is about $14/gallon. I have a race car that runs on it. Expensive stuff.

Every mod you listed is reducing horsepower and efficiency on an untuned stock component vehicle. So, if you pulled on a Redeye, they lifted or something. The adaptive PCM in your car is simply adjusting timing for the rich environment you're creating so that it runs within expected parameters. Without the tune and without actual mods, the car is making no gains at present. For example, the LMI is a good intake, it's just that the Hellcat isn't an NA or intercooled car and a reduced IAT does nada since the air mass is after cooled. Folks like us with aftermarket CAIs do it for the sound, as they don't produce any HP whatsoever.

hmmmm you ever think that the Srt / dodge does that on purpose to keep the power down not that the car can’t handle it just to keep power level at a certain level... I’ve seen stock hellcats just get tuned all stock and make 700whp. Tell me what you think my hellcat will make and we shall see how close you get. It’s my daily still stock injectors and fuel pump stock pulleys. You seem real smart about our cars..
 

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The problem with the Hellcats is that they've been around since 2015 and pretty much everyone knows what they're capable of at this point. Dodge isn't leaving much on the table. That's why it costs a few grand in pulley, tune and fuel pumps to get to 800... and why it costs an arm and a leg to get to 900 and beyond. Again, they're not like the older Fords and Chevy engines that had restrictive intakes, throttle bodies, exhaust manifolds and hyper restrictive tunes. The Hellcat is pretty much "tuned up" for its stock configuration without much left on the bone until you pulley it.

To legit beat a Redeye, you're going to have to pulley it and swap injectors. Without doing the pumps, you're leaving HP on the table. Without the pulley, you're not going to make it past 730-750hp at the crank unless you go E85 or tune it for methanol injection and/or a low shot of squeeze.
 

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Here’s a dyno sheet, my M6 Hellcat stock at around 11-12 psi of boost and with a 2.85 pulley and ID 1050’s on good 93 octane fuel splashed with an octane booster as knock sensor volts started to climb and the pro tuner, which was HHP at that time said enough and that was 775 or so wheel. Porting the blower and a bigger TB made 2 lbs more boost, up to 17.5 Psi got me to 855 wheel. I’m at 940 wheel now on corn with a double 285 fuel pump system and lots of drive train parts. I know first Hand the journey to here, its got a price.

This first picture first 2 pulls are stock, middle 2 pulls stock with a KN filter in stock air box, last 2 pulls where with a JLT CIA.
Last dyno sheet the major players are a 2.85 pulley, and ID1050X injectors,

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This next dyno sheet is ported blower, $1000 bilet inlet plate, ported inlet snout, 95mm Fastman TB. Started at 800 wheel before, I tweaked 25 more HP from her with timing changes (timing and octane booster)

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This next dyno sheet is in E85, dual 285 pump system still with work done on the fuel delivery system so the ID 1050’s would still keep up, and about 10,000$ of drive train and suspension goodies to handle the power and get it to the ground
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That was last November. Over winter pulled the engine and went fully forged, Demon Cam, 2700$ Custom made Wiseco pistons, all kinds of goodies, about another 10k, What did that net?
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Nothing yet except for a reliable strong platform to keep going from here. Making HP, at least repeatable long term HP usually cost $
But no doubt good luck on your quest, I’m VERY interested in what you net.
But 9 second Stick full weight Challengers with all the bells and whistles still on the car aren’t a dime a dozen either
Receipt Font Number Paper Event

Edit spelling and auto word correct errors
 

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Discussion Starter · #14 · (Edited)
So you have 900whp and run 9.9? Iam excited to see too these are all the mods my hellcat will get other than driveshaft parts. Like I said it’s my daily if I really want to go fast my evo 8 is almost finished up putting in motec ecu and dog box trans in that beast plus retuned should make over 1000whp on a 2.0L 😂 2800 pound car with roll cage.
 

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So you have 900whp and run 9.9?
Yes, that’s rowing your own with a 5000 lb with me in it full tank of gas floor mats, all the seats, trunk liner, nothin ever removed from the car just crap added super docil easy to drive idles like stock clutch feels like stock looks like new 9 second whale yes.
And runs 11.0 138-142 depending on DA on the street with 315/35-20 NITTO 555R2 skins.
And this is with a flex tune capable amount of boost, I can go to pump 93 any time and make around 850 wheel on regular pump gas, or put E98 in it and dial up the timing a tad and make close to 1000 wheel. Does about 165 in a 60 mph start 1/3 mile roll race and 5.9-6.10 60-130 sprints, with the AC on and music keeping the beat. In a M6 remember.
 

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Discussion Starter · #16 ·
E98 is good fuel. I use ignite in my evo. For sure your car is one bad machine. What state do you live in. I took my hellcat to the track dead of summer here in Az it did good for the weather humidity and da that day I broke off 11.4 @ 122 no launch
 

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E98 is good fuel. I use ignite in my evo. For sure your car is one bad machine. What state do you live in. I took my hellcat to the track dead of summer here in Az it did good for the weather humidity and da that day I broke off 11.4 @ 122 no launch
Looking forward to see what your car is making.
16GoManGoHC, which cam are you running? I have an EMP cam and I’m making 880rwhp but 950rwtq. I was hoping to be at 1000+rwhp but the shop said that’s the most they can squeeze out of it with this cam.
 

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Looking forward to see what your car is making.
16GoManGoHC, which cam are you running? I have an EMP cam and I’m making 880rwhp but 950rwtq. I was hoping to be at 1000+rwhp but the shop said that’s the most they can squeeze out of it with this cam.
I went with a Demon clone cam, wishing I went with the bigger cam I had in hand at the time as I’m not moving much more air now then I was with the stock Hellcat cam. I will say though the smoothness and drivability of this cam is unbelievable. I’m playing with different cam timing tunes now for the time being. May be changing to a Cam Dynamics PD .630 lift cam over winter and Johnson lifters.
Is you EMP cam totally locked out or do you have some VVT left?
 

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I’m barely just learned how to data log and don’t really know all the details and what to look for exactly but I’d like to know how this cam moves air. When I asked for the specs of the cam the guy at EMP just said it was their best cam. Whatever that means, and it’s completely locked out. The shop that ended up tuning it don’t like them locked out. It’s a bit disappointing when I have a 422 stroker, built heads, with a Redeye supercharger w/ 2.65 upper/10% lower. And not even making 900rwhp. The shop said they think this cam just sacrifices HP for TQ since it made over 100 more TQ than their 1000rwhp package does. 🤷🏻‍♂️
 
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