Year End Horsepower Adjustments...
 

NHRA finally put them up and Ken posted the link on the ClassRacer main screen...some of the changes could have been predicted while others (particularly some of the "no changes") amazed me but then I don't have access to all their data...read and weep ladies and gentlemen.

Re: Year End Horsepower Adjustments...
 

Weep? I don't think so. I might open a bottle of bubbly?
I guess my trip to Reynolds paid off.
That and a bunch of prayers. LOL
Now it's on to the combo class.

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The 5.7 DP got a 7 hp hit in SS. Ed Wright must be behind this, lol. Free HP for Christmas, tis the season!

Dennis Breeden

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Yeah, Dennis, I'm so stinking influential. LOL

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No couldn't have been Ed his letter asked for 47hp not 7. LOL

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I was going to say it was supposed to be 47. LOL

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I wonder who had the brass balls to get HP off a Cobra Jet, even if it is the puny one?

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That would be me. Chad
Its not that good of a SS combo even at 229HP. Their is very little room for HP gains over the STK eliminator engine. A good SS 281 motor may make around 480-490 HP(which is only 50 or so more HP then a stocker one), maybe even 500 with the right cams. a good running 283 like Robbin browns makes well over 500 HP. Which is rated around 225 to 230 I think.

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Charley, thanks for the letter on the 305 too.

Norm Webber

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283/220 is rated at 237(I run that same combo just nearly as fast as Robin!)

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The 283s have been r&d for 50 years, just becuse you have a new car and want to go 1.20 under the first time out? Robin and Gene B have throw more camshafts away than you will ever try in the new cars. Hard work trial and error over the years got those cars where they are at. They where not fast when they started but got there over years of trying. The world has change and some are like little kids that want it now. Tom

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A few of the "New" cars slid up a class in Stock:
427 COPO
428 CJ
2012 S/C CJ

Charley probably slid down 2 or 3 :)

See you at the races,
Wayne Kerr

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I agree, if Ed was asking it would be for more than 7, lol.

Dennis

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Tom when I try a new cam I haft to Buy two at a time. I have 3 sets on the bench that don't work @ around $1100-$1200 a set, plus the set in the car. Robin can try 6 to 7 different cams to my 3 sets. So don't tell me I don't spend the time and money on R&D. I can't tell you how many hours myself and others have spent at Holbrooks, Ronzello's & Big Stuffs trying tow find a little HP here and there.
Myself and others bulit my car from the ground up, so don't give me is BS about hard work and wanting everything right now. I work for everything I have. Just like most class racers.

Ed the 283ci 220/224HP is now 220HP in a 64-66 Chevelle.

Your welcome Norm, just think of it has a early X-mas gift.

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Not trying to argue Charlie, but how many YEARS of R&D do you have tied up there? How many sets of headers, etc?

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Ed years have nothing to with R&D. I could put 20plus years of R&D into a combo and it still may not run. Its what and how you do R&D that makes the difference.

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I want to send out a big "thank you" to the LT1 Super Stock GT competitor(s) that got us 4 more horsepower! Great Job!!

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Thanks you for noticing all of our hard work.

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Don't go breaking your arm patting yourself on the back there David! Because the only thing I notice is stupidity when some no driving **** triggers a review just to thump his chest!

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Thats pretty harsh. Never considerd myself the best driver but a no driving**** kind of mean dont you think?

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Boys, when you build a motor for GT you gotta know there are a lot of people out there who are gonna get it hit. Think about the guys that can buy a new motor any time they want to. Especially if it's a Chevy.

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Charlie Bob, there would be more room for improvement if it wasn't basically a super stock motor already. Couldn't resist.

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Let's do a little comparison to that 283/220 Chevelle you're talking about and your 281/235/229 Cobra Jet.

Chevelle
283 cubic inches
9.25:1 compression
Rochester 4GC Carburetor
1.72 1.50 valves

Cobra Jet
281 cubic inches
11.0:1 compression
2x 62.5mm throttle body
2x 1.34 1x 1.50 valves

Cubic inches are a wash, compression to the CJ, carb/throttle body to CJ, valve area to CJ (plus lighter intake valves).

Take away the cam lift difference and intake difference because we're talking SS, add in the overhead cam and better heads to start with, and it's looking like that 281 of yours should be making quite a bit more power than that 283 Charley.

I'm not going to say that you don't work hard on your car because you do, it's a lot more of a real stocker than many new cars out there, but I do not believe you have built a true SS motor with all of the tricks and good parts that is necessary for most combinations to run fast.

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what are you and Worner talking about ??? You guys are not even at the STOCK hp rating for the LT1 .........isn't that kind of cheezy ????

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An actual stock LT1 makes nowhere the NHRA Stock Eliminator HP rating. There is a LOT of work in those heads that is passing tech. Plus, it is a very efficient car. Light, aero-slick with a lot of natural engine set back. If it was rated at what a factory stock LT1 actually makes they would be even more dangerous.

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Can anyone shed some light on why the exact same motor, 1966 275HP 327 Chevy, should be rated differently in the three body styles (Nova, Chevelle and Full-size) it was originally available in? I can understand that there might have been a difference from the factory, but are people building these motors differently depending on which vehicle they are putting them in?

Thanks!

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Maybe the 327's without 4GC's are the red headed step children . Once again the 68 327-250/265 GT combo gets no reduction. . Maybe the idea is to have older cars run SS and only slipery cars run GT.! However, the 68 327/275 stock version is now 265>
anyone got a 68 Chevelle?

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that was my point Ed........the NHRA Super Stock LT1 horsepower rating is nowhere close to the NHRA STOCK hp rating........what is the problem ??? Super Stock horsepower should be raised to at least match NHRA STOCK rating----does that not make sense ????

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Rusty Super Stock guys are a lot smarter then Stockers who have the Lt1. If you run more than 1.00 under NHRA will beat you up with the ink pen. Thats why we are at 346 now. :):)

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I don't see why. Maybe you need to build one to show the rest of us how it should be done.

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Super stock vs Stock LT1.... A super stock GT/BA and a Stock S/BA have the same weight break at 8.50. What separates the two are the indexes, the super stock index is 10:25 vs the stock index at 11:25. I believe the stock LT1 HP is 345 vs the super stock HP 295 that means that the stocker is 425lbs heavier than the super stocker. Take that off the 1 second index advantage and that leaves the stocker some where around 5 1/2 tenths better than the super stocker. With all the modifications to a super stocker this makes them pretty close. Are look at it this way take 425lbs out of a LT1 stocker and rate it at 295 now run it on a 10:25 index. The HP rating does make it look funny but don't forget about the indexes.

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Sorta. Running more than a 1.00 under isn't that bad a thing especially for the LT1 in stock. Running 1.20 under is a different story.

The advantage that we have for the LT1 in stock is that there are so many people that run it across many classes. Plus a lot of them go rounds in eliminations. This is huge because all those rounds are counted vs. just one for qualifying. You will see that the elimination rounds are most often the slower runs.

It is all about the averages as long as it is kept slower than the 1.20 under. Keep the average for the class and engine family below the .85 threshold then it becomes no harm no foul for the 1.00 triggers.

Sheer dumb luck and dilution is a wonderful thing.

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Sterling......I was trying to say that without saying the stupid part......you hit it just right !!!!

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Herbie....did you ever consider a job in politics or litigation ???? hahahahahah

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Thank you Rusty and Mr. Ratcliff. Ok Lt1 guys no HP in 2013. I'm at 3455lbs. now haha

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The 250/265 Did not meet the requirements for horesepower reduction. Your old 68 chevelle may be somewhere in Washington state.

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You are welcome, but that "Mr." thingy really hurts. :D

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For all you LS1 guys, according to my master computer revived from the Myan temple in Mexico, it will never get hp based on the average. Too many of yall. The 1.20 deal is something else however. I guess yall are the 'not so old' cars. Lots of them people mad at yall too. Them people.

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Maybe some of you long time class racers, or guys that understand the AHFS better can clarify something for me.

I went faster 1.00 under but slower than 1.20 under a total of 2 times last season, same event, different days.

I guess my question is, why would my index be lowered .1 because of this?

BTW, my average runs were way slower than 1.00 under.

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Carey, your two -1.00 under runs raised the red flag. All you need is a class average of -.85 to get HP or index change. Jim


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