[Mopar392]

What are the crank and supercharger pulley sizes on Hellcat?
Is the crank pulley similarly sized as the Eagle and Apache HEMI?

 

[Top Cat]

The crank pulley can be changed, ATI has a 5&17 % OD unit they are working on, not yet released for sales, the blower pulley is going to be much harder to change, if even possible....

 

[Mopar392]

So, Hellcat Crank Pulley is considered an OD compared to 5.7 and 6.4?

 

[Top Cat]

Totally different, a brand new unit for the hellcat which ATI is making the OD unit for.

 

[Nycsrt]

No point to change that till tuner released to control the boost limiter

 

[Top Cat]

I have one being made so we can see what the ECM does.

 

[BKuz]

I just went to Diablosport website and this what I noticed in their 2015 catalog. They are listing 6.2 L for the T-1000. I have contacted Diablosport and waiting for an answer.

BKuz

 

[hellcat1]

Bkuz, I'm willing to bet that they don't have one for the hellcat

 

[rayzazoo]

I wonder what the asterisk is for by the 2015 on the Diablosport list. Maybe "projected for future" once they crack the code?

 

[BKuz]

Hi Rayzazoo,

You are 100% correct. Mikel from Diablosport told me that they had to distribute their 2015 catalog so the 6.2L tune was a projected tune once they crack the code.

BKuz

 

[Alan]

What will you do with the extra heat generated by higher boost pressure? Will the stock SC intercooler be able to handle the extra heat so that the density of the air can be increased as intended? May end up generating more heat such that higher boost pressure does not add all that much HP. I am interested in seeing the result.

 

[hellcat1]

That's a very good point,,I can't imagine this is new technology,, Ford has been doing this for better then ten years

 

[Ricci Cavallaro]

Shouldn't need a tuner since they have MAF sensor. That should adjust for additional boost. Additional rpm would help but will need the tuner for that. I'm more concerned with traction at this point! Extra boost will come later.. Spinning ain't winning.

 

[hellcat1]

This is true,,, but when you roll into the throttle the extra boost will help, just not sure how that clutch thing inside the pulley will work / or what will happen lack there of it..

 

[rayzazoo]

Shouldn't need a tuner since they have MAF sensor. That should adjust for additional boost. Additional rpm would help but will need the tuner for that. I'm more concerned with traction at this point! Extra boost will come later.. Spinning ain't winning.

I think this is true to a point except for the 2nd throttle body that acts as a electronic boost controller.

 

[Ricci Cavallaro]

Well I'm in Pa so my car won't be on the track or road for awhile! I'll let some of these other guys be the guinea pigs for all this stuff and see what happens. Like to get a few stock runs to see where were at before making changes. 30+ years of drag racing taught me one change at a time!

 

[smldsmk]

What will you do with the extra heat generated by higher boost pressure? Will the stock SC intercooler be able to handle the extra heat so that the density of the air can be increased as intended? May end up generating more heat such that higher boost pressure does not add all that much HP. I am interested in seeing the result.

Saw a site today that claims all the internals as well as the intercoolers were set up to handle 850bhp. So supposedly they erred on the side of precaution for more boost. I honestly believe this was done to give an advancement in horsepower without having to do anything but reconfigure the air intake and a hotter tune.