Calculating the HP from known 12psi Of Boost

[Dr. JL]

755 HP, 603 lb-ft. I'm heading to Vegas.

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[MaskedRacerX]

I think you’re going to have to update your PSI calculation using 15 PSI as the reference.

I think you have to multiply by pi or something ...

755 HP, 603 lb-ft. I'm heading to Vegas.

Wow, even down with the exact torque numbers, nice

 

[FastCarFanBoy]

My tuner tells me its got 52lb injectors and and conservative 12* timing. for now anyway, or the base file he has ect ect

That's a small injector for 700+ horsepower. The Hellcat comes with 57lb/hr squirters and the Demon uses 65lb/hr.

 

[V00D00]

That's a small injector for 700+ horsepower. The Hellcat comes with 57lb/hr squirters and the Demon uses 65lb/hr.

good point, ill double check, may have been a typo

 

[markmurfie]

A stage 1 15-17 whipple kit has 55lb/hr injectors, and does 750hp at the fly wheel on 10-11PSI. The 2650 rotors are very comparable. They could go to 9.5:1 compression and do this on 13PSI pretty easily. If they dont drop the compression its going to be more HP. Anyone looking at a stock calibration and saying its going to get a very specific timing is BSing you. It will always be a range depending on how the knock sensor likes the fuel.

Get this comparing it to a big inefficient dodge engine out of here. More power from less air outta the Ford coyotes hands down.

 

[9secondko]

I'm guessing 14 PSI area

Close enough. My precise pick is somewhere between 14-15, so I rounded up.

 

[V00D00]

A stage 1 15-17 whipple kit has 55lb/hr injectors, and does 750hp at the fly wheel on 10-11PSI. The 2650 rotors are very comparable. They could go to 9.5:1 compression and do this on 13PSI pretty easily. If they dont drop the compression its going to be more HP. Anyone looking at a stock calibration and saying its going to get a very specific timing is BSing you. It will always be a range depending on how the knock sensor likes the fuel.

Get this comparing it to a big inefficient dodge engine out of here. More power from less air outta the Ford coyotes hands down.

its obviously not flat timing, and obviously not the final tune.. but the fact the tuners are working on the files already is exciting.. and you would be happy to know who i got the information from, if your into coyote tuning

 

[Dominator961]

315 cubic inch
9.5:1 compression
Assuming 14mm lift cams
Assuming same valve size as voodoo
7500 rpm red line
What’s the blowers CFM?
What’s the VE?

 

[olaosunt]

315 cubic inch
9.5:1 compression
Assuming 14mm lift cams
Assuming same valve size as voodoo
7500 rpm red line
What’s the blowers CFM?
What’s the VE?

If the Valves are the same as in the Voodoo and the cams are the same as the ford racing (same lift as voodoo) ,the “predator” may just be a lower compression( boost specific mahle pistons) version of 5 2 alluminator XS(with the upgraded ford racing 5.2. block/Mahle Rods)

I am having an 11:1 (using the Gen 2 block ) and a 12:1 version (Gen 1 block) long blocks built to stick in my 15’s.

They still won’t be GT500’s but that’s the closest I will be able to get for a a couple of years . Lol

Both blocks(unsleeved) will also let me take advantage of the 12mm head studs(longer on the Gen 2 block) which are less likely to allow head lift /cracking around the knock sensors

 

[olaosunt]

If the Valves are the same as in the Voodoo and the cams are the same as the ford racing (same lift as voodoo) ,the “predator” may just be a lower compression( boost specific mahle pistons) version of 5 2 alluminator XS(with the upgraded ford racing 5.2. block/Mahle Rods)

I am having an 11:1 (using the Gen 2 block ) and a 12:1 version (Gen 1 block) long blocks built to stick in my 15’s.

They still won’t be GT500’s but that’s the closest I will be able to get for a a couple of years . Lol

Both blocks(unsleeved) will also let me take advantage of the 12mm head studs(longer on the Gen 2 block) which are less likely to allow head lift /cracking around the knock sensors

May be I will eventually replace my 3.2KB that will be sitting on the 12.1 version with the 2.6 Edelbrock and call it a poor mans higher compression GT500(with a stick-Magnum XL)

 

[V00D00]

If the Valves are the same as in the Voodoo and the cams are the same as the ford racing (same lift as voodoo) ,the “predator” may just be a lower compression( boost specific mahle pistons) version of 5 2 alluminator XS(with the upgraded ford racing 5.2. block/Mahle Rods)

I am having an 11:1 (using the Gen 2 block ) and a 12:1 version (Gen 1 block) long blocks built to stick in my 15’s.

They still won’t be GT500’s but that’s the closest I will be able to get for a a couple of years . Lol

Both blocks(unsleeved) will also let me take advantage of the 12mm head studs(longer on the Gen 2 block) which are less likely to allow head lift /cracking around the knock sensors

are you filling the blocks? Ive got my coyote at Drummond right now and about to decide which turbos to go with. Just saw PBD got 1440hp out 2 6266 precision's, which is about the HP goal i have in mind, but probably going with 6466 for headroom.

 

[olaosunt]

are you filling the blocks? Ive got my coyote at Drummond right now and about to decide which turbos to go with. Just saw PBD got 1440hp out 2 6266 precision's, which is about the HP goal i have in mind, but probably going with 6466 for headroom.

No . I would probably sleeve it first if was going to do that (like Evil 5.0 did ).

No plans to really beat up on the cars once they get the new motors but one builder will warranty his block up to 1300 whp for a year .

MMR sleeved 5.2 blocks previously in both cars and the one in the Hellion TT car with 6266’s held up to 1200 hp .... till the crank broke .

Just hoping being “GT 500” like will help them sell a little quicker !
I think the motor with the higher compression will make it more fun on the street with the KB/Magnum XL

Of course both cars are running E85 exclusively with ID1300’s and triple pumps ...so higher compression is fine ...

Sorry for thread hijack .

 

[Gogoggansgo]

The issue with trying to figure out the hp before launch is we just don’t know a lot about the engine. I bet you it’s 11:1 and how big are the cams 14mms or less. And a bunch of little things. But if this engines makes less than 750hp we gotta problem

 

[Gogoggansgo]

Rumors are that the car dyno'd at 808 and 812. That doesn't mean @#$%. The motor has to undergo certification and EPA testing. Again, I am guessing that it will come in in the high 700's.

I hate rumors, and this info cannot be verified. Take it for what its worth.

Remember dodge was getting way more than 707hp with the hellcats at launch and had to turn them down for emissions reasons.

 

[Epiphany]

...if this engines makes less than 750hp we gotta problem

What would that be?

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