Has anyone ever installed a supercharger and increased pulley size to limit HP?

[Turbo Cow]

I'm not wanting 700HP. I was maybe toying with the idea of another 100hp. Maybe a solid 550 to the wheels or something. Would installing a blower with a larger pulley be the way to go? Has anyone done this and want to give an opinion?

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[wingnutt]

nah, why reinvent the wheel?

first things first, 100hp will not be enough for long

just run the kit (whichever you chose) and set your shift point lower

 

[SheepDog]

A basic Procharger P1SC or ESS G2 with their large pulley will do just that - add about 100 Wheel. Plus, you won't likely have to do anything fuel system related aside from slightly larger port injectors.

One thing I will say though, is that when anyone does this "Low boost" option with a Centri, they are generally disappointed in the outcome because the torque gained is relatively low, and you have to wind it up to realize the gains.

If I was going for the low boost, less invasive solution, I'd do an entry level PD blower instead of a Centri. You will get the feeling of more power for the money with the instant torque.

The Centri's are kind of disappointing until you really pulley down, but then you need a whole host of other modifications (including E85) to support the boost

The attractive thing about the Centrifugal kits (especially ESS or the Beefcake BSS P3 Paxton Novi ) is the cost, but again, that 6 PSI system isn't probably going to net the results you may be looking for.

 

[robvas]

Only 100hp is a waste for the amount a blower costs. Just don't floor it as long.

 

[Swtbabybilly]

If you dont want tons of power go all out with the bolt on route you can add a part see how you like the power if you want more get more. Or go with boost ( which i think is the better option and probably cheaper in the long run if you go max effort na) but go with a centrifugal supercharger or turbos where to boost rolls in doesn't hit like a sledgehammer like a tvs or twin screw blower would. With turbos you can drive around on waste gate or set up a boost controller to run whatever boost u want

 

[junits15]

I think this is a reasonable desire. There’s a gap in the mod path for this car. Your options are to go from 480 to 650.

Besides it’s trivial to change the pulley if you decide you want more. 550 wheel would be really nice.

 

[robvas]

That is the middle ground, honestly.

Just pull timing out and not spin it over 7000rpm and only make 590

Then turn it up on e85 and make 850

 

[wingnutt]

That is the middle ground, honestly.

Just pull timing out and not spin it over 700 and only make 590

Then turn it up on e85 and make 850

yes…this is what I meant, but not quite so eloquently

 

[John S]

I think I can relate to wanting to limit power gains. Dark horse switched to India sourced forged connecting rods over the conventional American sourced Coyote powdered metal rods to pass OEM durability requirements. There's nothing wrong with cracked-cap PM Rods if they're designed right, Mopar Hellcat and Demon engines use PM rods and they passed OEM durability tests just fine.) I'm considering an ESS G3 Kit w/125mm pully for my Mach 1 with catless headers and an E85 tune (with supporting fuel system mods) but I'm thinking the gains would be too much for reliable HPDE events?

 

[Pistol_91]

I wouldn't worry too much about physical parts as much as finding the right tuner to limit it in the tune. That way if one day you want more power, you won't have to deal with pulleys and belts.
Go with a PD blower for that power range.

 

[5doorsoffury]

First i must say this. if it costs7 grand for 50 hp and you are COOL with that then ok cool haters gunna hate. people are going to tell you how to spend ur money. its a toy its nevert a smart finacial purchase so if ur happy and ur not getting ripped off good for you.

WITH THAT SAID, yes you an get an ess sysem with a lerge pully. you will make power and you keep alll the oem stuff like manifolds injectors ect. yoxacan get 700hp on a oem fuel system with a bap and inspections are easy with the oem equipment still there.

IMHO turbos is what you want BUT if you make mistake you might boost spike to a lot and boom. the nice thing is you dont have to worrk avout breaking the crank like what happenes with whipples and big boy prochargers. you need a friggen cranc support plate its wild. you wont overboost like that on a centri.
seriously a centri is like stock but when you lay into it up top you get some nice power. perfect for someone who likes everything but wanta just a bit "more". you can set it and forget it ( still monitor afr and iat) a pd blower is fun but its a pita to remove and the manifolds replace oem emmisions equipment. you an rig or tune around it but ni thanks. relays are usefull for that i used one to .imic a fuel pumo so my tune sets the fuel system monitor. it wont set if that mil is turned off for example. messing with emmisions is a pita. be warned it will sound like a jet engine applying the airbrakes at a light lol.
ess with big pully and a tune*chef kiss*. at that point if you want to pully down you can with minimal mods that is until you get to the point were most people want more. it funny that 500-600 hp range is never talked about lol its eather na is a waste of time and people poke fun or they put a whipple on everything including there lawnmower.

be warned the slippery slope. the 100hp on oem is ok then it turns into a smaller pully then wanting e85 so you get a pump then a return system then injectors. the power isnt getting to the ground so axles tires lockouts.... after a while you worry about the cats so they get replaced. all of a sudden you start eyeballing a diffrent system and realizing you need the motor built fir the new goals. then if your building the motor might as well dothe tranny. maby a th400 or a glide. maby a t56magnum xl... its bad

 

[Bob Lob Law]

I have an ESS G2 with a 120mm pulley on a lower timing tune(no good gas around) and it is a ton of fun(especially on octane booster)! Mine should be around 560-580whp without the octane booster. It drives like stock with a bit more everywhere and just keeps building. Not gonna lie though, since I cannot pully down or get good 93 around here I'm already saving for injectors and a fuel system to run E85. Planning on staying on the same pulley for a bit so I can switch to pump for road trips.

 

[Tw00sh]

Sounds like OP just needs to trade in for a GT350

 

[stang17]

I had Rob from P1 tuners use PCMTEC to create a multi tune file which allowed to adjust power on the fly. I can go from 500 whp up to 800+ on the same pulley size by limiting timing as well as how much throttle is commanded and allowed to open.
You can also go down the rabbit hole and start making different torque limits based on individual gear.

It does take a decent amount of time to dial in, but we'll worth it in the end. I also use the canbus flex option that will automatically adjust timing and power limits based on what ethanol content sensor is reading.

 

[xr4x4ti]

Since you have a Gen3 Coyote, a good tuner can disable WOT and set a max load on the engine.

@engineermike

The best bang for the buck would then be to get the lowest cost ESS or other Centri kit, but NOT pulley it for only 100hp. Pulley it for normal max pump gas power (11-12 psi at redline) and then have the tune keep the load to 1.5-1.6.

This way you will also gain some low RPM torque while limited the max power and octane requirement.

I hope I explained this well.

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