More NHRA horsepower factors
 

Another few power factors are posted on NHRAracer.com


http://www.nhraracer.com/content/gen...219&zoneid=132


The database is updated on www.classracerinfo.com with the new factors. Cheers!

Re: More NHRA horsepower factors
 

WOW 14 hp on 1978 firebird pontiac 350, someone will not be happy. Tom

Re: More NHRA horsepower factors
 

Looking thru NJ's stats I don't even see a 78 Firebird with a 350.Not in Stock anyway.

Re: More NHRA horsepower factors
 

The Pontiac move is misrepresented. That engine is a Chevy 350 that in most applications, Chevy, Oldsmobile and Pontiac, is 287 in Stock eliminator with auto. In fact, the previous Class Guide for 1978 Pontiac has the power rating at 287 for the Firebird, not 269 as stated on NHRAracer. The 1978 Corvette, Camaro and Nova has the rating at 283 (even though the Corvette and Camaro engines were OEM rated at 175, it's the same engine), and it appears that the new Firebird rating is to put it line with those. Maybe because it is an F-body like the Camaro? Then why not adjust all the other 1978 X-body cars - Omega, Phoenix and Skylark - to be 283 like the 1978 Nova? And what about the G-body and B-body cars that use the same engines? Another baffling assignment.

Re: More NHRA horsepower factors
 

I know someone with a 78 Firebird that was building a 350 Chevy motor based on the 269 rating!

Re: More NHRA horsepower factors
 

Yea, my 70 Duster went down, maybe I'm am building at the right time.
30 pounds lighter I guess

Re: More NHRA horsepower factors
 

77 Camaro and Nova is 269. Awhile back NHRA just put a blanket 287 rating on those combos when it actually was just 1 or 2 cars crushing the index. A Malibu wagon would be great at 270 :) but will need a few reductions.

Re: More NHRA horsepower factors
 

1978 & 1978 Malibu Wagon with 350 got Hp. 2 times, once with Camaro & Corvette & the second time with the Camaro & the Corvette did not get Hp. I look up 350 Malibu Wagon in Nitro`s stats, in the last 10 years, The fast run I could find was 6 tens under the old index.

Re: More NHRA horsepower factors
 

Just curious but who might be running the 327 2bbl in GT that got adjusted

Re: More NHRA horsepower factors
 

Mike, Greg Tucker 4496 GT/LA 97 Camaro, Noble,Ok. ran .327 under.

Re: More NHRA horsepower factors
 

I think they need to hit the 1969 iron head 396-375 Chevy engine again. Its only @ 412 and everybody knows it was originally rated @ 425 in 1965.

Re: More NHRA horsepower factors
 

Cimo, do ya ever read your PM's? call me pls. 951 686 4230

Re: More NHRA horsepower factors
 

Only in certain body styles not the ones you would think

Re: More NHRA horsepower factors
 

Yeah I check 'em. I only talk to people that I like!!

Re: More NHRA horsepower factors
 

I guess I been bumped off the list, but I got your Christmas card. Would not be Christmas without Jim's card.

Re: More NHRA horsepower factors
 

I'm upset that you got a Christmas card and I didn't! Damn Cimo you know I miss you buddy!

Re: More NHRA horsepower factors
 

What makes the least sense about that 1978 firebird 350 combo is that it has the same specs as a 1977 camaro 350 that's only rated at 269 but the firebird is 283 and was originally moved to 269 but now back to 283. Anyone have an explanation for that? I thought all vehicles of the same platform with the same engines were rated the same. All other camaro/firebird combos are factored the same whether in a camaro or firebird throughout the entire guide. Uncle Jeff what's the scoop? I know you know...lol

Re: More NHRA horsepower factors
 

The '77-'79 350s are all the same specs and they should be all the same power factor regardless of model or body style. NHRA should be factoring engines based on the potential performance, not people who can make them go fast.

Re: More NHRA horsepower factors
 

You seriously don't see a difference between a corvette and a caprice wagon???? HMMM interesting.

Re: More NHRA horsepower factors
 

I asked Pat Cvengros and was told the 78 models came with an aluminum 458520 manifold which aren't allowed on the 77 models. The 77 models are allowed 882 heads 160cc in 60cc ex runner which aren't allowed on the 78 model. He told me unless the same exact part numbers are available for the combination they are rated different . The 73 - 76 models are allowed 993 heads which are not allowed on the 77 - 78 models and they have been hit with horsepower under the guidelines of the AHFS and are rated at 287hp. They make the rules and it really doesn't matter what we on the internet think or complain about.

Re: More NHRA horsepower factors
 

The extent of the discussion and issues involved in factoring is much more than I want to engage in this medium, but yes I do see a difference between a Corvette and a Caprice wagon. However, they do not run the same class. Plus, given the history of racers and what they are attracted to build, I doubt that either one of us will ever see a Caprice wagon as someone's serious competitive effort. The other extreme of the issue to me is represented by the '78-'79 305 4-bbl. Exactly the same engine, yet all the 1978 applications are rated at 235 while most of the 1979s are rated at 243. A 79 Malibu hardtop is 243, but a Malibu 4-dr sedan or station wagon is 235. All because a single person ran fast over 10 years ago in a Malibu hardtop. For years, the 1979 Malibu hardtop carried a 245 factor while all the other applications were 235. They factored the person not the engine.

Re: More NHRA horsepower factors
 

If you believe that for just one minute then either you're not a Racer or you're delusional!

Re: More NHRA horsepower factors
 

Very interesting! And yet he allows an Edelbrock LD4B dual plane aluminum intake on a 273 that only had an iron single plane intake manifold.

Re: More NHRA horsepower factors
 

Dwight

While i agree with your thoughts on the inconsistencies between body types,the 79 Malibu hardtop hit was just in 2014. Billy Lynn went 1.245 under vs Dean Oliver at 1.197
under at the 2014 Cajun Sportsnationals. According to Nitro Joe 2014 stats they were both at 235 hp at that race. I think it was the class final so unfortunately they got punished for racing to the stripe.

Re: More NHRA horsepower factors
 

Hmmmm, yep that's one reason the Corvette is going back together!!

Re: More NHRA horsepower factors
 

Does this make sense? 1979 Chevy 350, Impala 275 hp. Corvette 283 Hp. Nova 283 Hp. & Malibu Wagon 287 Hp. 350 Malibu Wagon best run in last 10 years, per nitro stats, 6 tens under old index.

Re: More NHRA horsepower factors
 

While the latest version of he class guide shows 2014, I also have a 2002 version of the class guide with the note at the bottom of the page next to the 235 rating that states "Malibu hardtop rating is 245". It's been there for a l-o-o-o-n-g time.

Re: More NHRA horsepower factors
 

The 350 Chevy deal makes no sense I had a very long conversation with NHRA about it and got no where but the same answere " They are NOT identical Blue Print specs " so they are rated differently. The only problem with their logic or should I say lack there of is they may not be( EXACTLY) the same BUT the 77 and 78 share intake and head casting numbers that are an option one being the 249 cast intake and the 450 head can be used on BOTH combos . Now I am not the head cashier at Walmart but common sense would tell me if BOTH casting numbers can be used on both the 77 and 78 350 would't they be deemed the same if the 881,882,450 head on the 77 combo is rated at 269hp would the 78 350 be the same if it can also use the 450 head ? Now I would told that the 450 head has a 165cc intake runner and the 881,882 has a 160 cc intake runner so it is rated less? If this is the case then the 450 head would be deemed better and not be allowed on the 77 350 combo ? Am I crazy ? Now I was also told the 78 350 can use the 520 intake which is an aluminum one and it can use the 249 the cast intake so that changed the rating as well ? Ok well if that was the case and the aluminum intake is the better intake ( 14 hp ) better ( rolling eyes ) then why would the 249 cast intake even be an option ?

Re: More NHRA horsepower factors
 

14 hp wow I'm stuck with the 249 I'm gonna need a adjustment!

Re: More NHRA horsepower factors
 

Apparently the cast iron intake flows better in different body styles lol