around 1000+ hp and I think the weight is 3200

 

The zone is absolutely correct. The class is a 6 lb/rated hp. The NHRA currently rates the autos and sticks the same at 505. This works out to 505 x 6 = 3030 plus 170 for the driver which makes it 3,200 lb minimum.

The fastest cars are making North of 1,100 hp.

 

Wow....I didn't realize they had pushed the power level that high.

 

Wallace calculator says to get 3200# to go 160 mph takes 1,049 HP. Pretty impressive for 447 cubic inches.

 

They have been pretty innovative with what they are doing with the heads. Basically, they have been opening up the intake ports a whole lot to support much higher RPM's along with some very innovative improvements in valve train geometry.

The intake (and exhaust) runners still have to meet a maximum cc number. You can port and shape all you want in Super Stock, but you cannot make the runners larger in cc's than the blueprint specs submitted by Chrysler to the NHRA. One of the ways they accomplish this is by milling down the intake side of the heads until they just barely get into the valve cover bolts which is the limit based on the rule book.

 

Wow,allowing for .070" overbore cid is about 438" = about 2.5+ hp/cid. "Getsome Hemi".The engine builders are definitely superb. JD Lobosco

 

Don't forget about the .013 extra stroke, but it doesn't add that much more. The builders are very impressive.

 

Listen to this one....

 

Listen to this one....https://www.youtube.com/watch?v=nxFnWgVfdGI

Sounds like the on board videos of a Pro Stock

 

Are four speeds mandated for the sticks? From looking at the combo and watching that video it seems like another gear would help.

Badass rigs regardless.

 

Its all about optimizing gearing to keep the engine in power band and minimize RPM drop. Dont know if most would have enough track to pull 5th....

They changed the rules for manual trans in SS racing a number of years ago. can run any 4 or 5 speed, even clutch less liberty, just no planetary trans like Lencos allowed.

 

They can not run 5 speeds. The only rule they changed was to allow 3 speed manual cars to run 4 speeds, and powerglide cars run 3 speed autos. Clutchless transmissions are allowed in SS now, too, but not 5 speeds for cars that didn't come with them (modified cars can run 5 speeds).

 

They aren't making 1100HP. I built the car in the video above, and I've seen the dyno sheets from Reher Morrison. They make amazing power, but it's not as much as you think. The trick has been getting them to make smooth, non-peaky HP, and to make the cars as efficient as possible. That's a 3200 lb. 4 speed car on a 13" wide tire that went 1.19 60' on that run. That's getting it. And if we had 5 speeds.....man, that would be ugly.

 

It was my understanding that Wescott/s, Daniels, and Pancake were making that kind of hp, but you would know better than me. They can't be far off.

 

Racer3207 is correct. From the NHRA Rule Book for Super Stock:

TRANSMISSION, Manual
OEM or NHRA-accepted aftermarket transmissions having same
number of forward speeds (O.D. gear not required) as original,
and reverse, may be used. All gear changes must result from
direct action by the driver. Pneumatic, hydraulic, electric, etc.
shifters prohibited. Floor shift-conversion kits permitted.
Clutchless transmissions permitted. If any engine/manual
transmission combination is listed in the class blueprint
specification as being available with only a three-speed manual
transmission, it may be replaced with any four-speed manual
transmission. See General Regulations 2:12.

 

O yea they all make pretty good steam anymore, but nothing like 1100 is all I was saying. Especially Pancake. Lol. We have a 5 year old motor in that thing and people can't figure out how we're as fast as we are. Like I said, efficiency is key in these things.

 

I said Pancake (maybe I am hungry), but I was thinking Wolkwitz. 8.22 at a little over 3,200 with an automatic should be a lot closer to 1,100 than not.

 

Wolk and Daniels are closer to number estimated above with Wallace calculator…


Didn't know R/M hp figures and even though I fronted Bucky the cf nose off my AH car after his mishap last season, Line Hemi Hp numbers and everything else in that camp are highly guarded secrets!! At Indy Line Hemi had upper hand on everyone….

CW said his dyno showed a tad over 1k. Also claimed his dyno was conservative.

 

This is why I chose John Holt Racecars to get my junk fixed up.

 

Efficiency is the key word.
I think these guys were well into the 8s before they made 900hp

 

That is correct on the efficiency. Most SS/Stock Eliminator cars don't add when you put them into the online calculators.

And yes, bucky was impressive at Indy, but everyone forgets Hebert went 159 off the trailer at Indy first session. Had some engine gremlins bite us but RM had the most power there. Just a shame we didn't get a chance to show it. But that's Indy. It's more of a grind than a one-hit-wonder show. That was a disappointing week for sure.

These things are just heavy Comp cars. Heck, they are heavy steel headed 440 ci Pro Stock cars, if you ask me. Some of the most impressive performance I have ever been around

 

Agree on the calculators. That's why they're so impressive.
I'd watch these cars before any of the "Pro" categories.

 

Eric Jones another good builder.


Ray

 

The hemi class is finally competitive with more than just 2-3cars winning all the time...some of the things they are doing are truly amazing.. This year will def be interesting in the HEMI war

 

They are making 1,050 to go 160mph

 

They need every one of those ponies to push those barndoors to 160 mph. JD

 

I couldn't believe it the first time Wescott told me what he is spinning them at. Picture that valvetrain at 9000+ rpm!

 

Maybe there was trickle down of tech from top fuel and some better parts.

 

We invented "VALVAGRA" which allows 10k'ish. I hate the finish line...........

 

congrad's on belle rose!

 

Does anyone know what the CD and frontal area of these cars is?

Stan

 

Stan,a guess as to Cd is .30 and frontal area 20 sqft. maybe more.K member and oil pan are hanging out also. JD Lobosco

 

Thanks. Those number look very low / good. I do not have very many numbers from cars around that time and am not sure how correct they are. But for a '70 Chevelle I have CD .42 and frontal area 25.5

Stan

 

Haven't some stick cars gone 162+???

 

Charlie went almost 163 when he went .22 @ SGMP a few years ago. I think the conditions were the epitome of mineshaft I believe. That run is the benchmark, personally, for these cars.