i've posted this on my site, but i'll chime in over here.
car counts are higher in tafc than they've been in a long time. i don't remember a short field at any nationals this year, and that's a first in a while. parity is not even a good word to use to describe tafc because everybody runs the same combo, blown alcohol. sure there's different head and motor configurations, but they all run pretty close. most racers choose the head/motor they feel is the most competitive. the cost to switch isn't even in the same ballpark as it would be to switch to an injected nitro combo. if you had a tafc and wanted to switch to injected nitro fc, you could use the fuel and oil tanks, one of your mags, some valve cover gaskets and plug wires...oh yeah, i'm sure you could use the same steering wheel and throttle pedal.
this notion that a/f is waaay cheaper to run than a blown combo would be a great subject for mythbusters. i've crew chiefed on all three combinations. while i've never signed the checks, i ordered the parts for all and saw the invoices.
first off, using the word cheaper is a misnomer at this level. secondly, a race budget in the top alcohol classes, a/f included, has more to do with the tune-up and personel than the combination. there are no a/f or blown lanes at the flying j truck stops, and i've yet to see cheaper tickets/hotel rooms on orbitz when booking travel. this topic of a/f being cheaper is so far out in eutopia never never land; it's so far away from real world. you have to construct a perfect world where you don't hurt parts on either side of the equation to compare expenses. well that rarely happens on either side....but here we go.
let's start with the favorite...valve springs. some racers use ti springs, some use of the newer material steel springs. regardless of material, valve spring life has come a long way in the past few years. that part of the equation is getting better for the blown cars. rod life has went up over the past few years as well. it's not uncommon to see top teams get 20-30 runs out of rods. on steve harker's car we finished 5th and ran with the big dogs, and have a crank with 68 runs on it, no cracks.
rotating assembly and valvetrain is more expensive than the a/fueler. but there are some things that are more expensive than the blown car on an a/fueler, contrary to urban legend. start with the fuel. a drum of nitro is about 900 bucks, a drum of alcohol around 250 or less. you have twice the park plugs with an a/fueler and you usually can't re-use them. the price of ngk spark plugs just doubled. so you have twice the ignition expense. twice the wires to replace, twice the inventory to carry. with the plug price increase, we're really starting to eat into the savings.
let's go to the bellhousing. a/fuelers are direct drive with a 4 disc clutch vs blown with a 3 speed and 3 disc clutch. so before we even get to the topic of wear, you have 1 more disc and one more floater every lap. well leaving from an idle in high gear really eats up clutch parts vs the blown car using rpm. i mean really eats clutch parts. maybe not close to double the expense, but close.
lets get to tires. while there is a decent chunk of blown cars that run goodyears, the majority run hoosiers. well hoosiers are 750 mounted, goodyears are close to 1100 a set. tire chunking is a fact of life with the faster a/fuelers. one set of tires you may get 20 runs, one set you may get 3. putting an average on the runs would be subjective without having detailed data from several teams over the course of the year. but it is fact a/fuelers chunk tires. it's pretty rare for a blown car not to get a full life of 12-20 plus runs out of a set of their tires. so there's more tire expense due to the downforce.
have racers switched from b/ad to a/f and saved money. yes. the question you have to ask is was it because they were blowing up a lot of motors and quit blowing up motors after the switch or was it because of the combo. did they have a tuneup that blew up parts with a blown car and then bought a tuneup for an a/fueler that didn't blow up parts? the assumption that killing a bunch of motors to be competitive with a blown motor is absolutely false. tuneups hurt parts!
while we're talking tuneups, has anyone priced a competitive a/f 'tuneup?' or the tuners that usually go along with them? is the reason why the top a/f teams carry 6 or more cylinder heads in the trailer because they think it's neat to have all those pretty heads in the cabinet? the a/f car is harder on cylinder heads when you start dipping into the 5.20 and 5.teen zone. if it isn't pushing head gaskets out, they burn valves and fuzz or burn combustion chambers. i don't care if you got a buddy that fixes them for free, ups still costs the same blown or a/f.
are a/fuel crewmembers cheaper? do they eat less or drink less beer? no and no.
what we're analyzing is a portion of the overall budget to run one of these things. diesel costs the same for everyone. payroll, fuel, flights, hotels, motorhome payments, permits, insurance, etc., all cost the same and they are a significant chunk of the cost to race competitively in the top alcohol classes. racecar parts arent the reason why top fuel is so much more expensive than top alcohol, it's the labor, personel and the costs associated that take that into the stratosphere.
so here's the kicker. i've conceded in the past a/fuelers may be marginally cheaper to run in a perfect world. maybe $500 a weekend, but i doubt that much. so at 16 races, that's $8,000 a year. just for grins, let's be nice and give the a/fuelers $20,000 savings a year. well, it's going to cost at least $150,000 (more realistic would be $200 to $250k) to switch to a/fuel...buying a turn key car, spares, tuneup, etc. you sell your top running blown stuff for pennies on the dollar and might get between 70k to 100k for it. that's when you finally sell it after a year or more, unless you really give it away. i'm not going to put exact numbers on it because we can really twist the numbers how we want them to come out, but bottom line it's alot of money to spend to get a comparatively small savings.
the more logical assumption is that the switch was made to be more competitive, not to save a bunch of money.
now we just used alot of bandwidth debating perfect world scenarios that more than likely don't happen. you can run fast with a/fuel and not hurt parts just like you can run fast with blown and not hurt parts. tuneups hurt parts, and the people behind the tuneups cost money.
the perceived cost savings of a/fuel is very minute. it's definitely not worth screwing up the balance in tafc, a class that by the numbers is thriving.
as i've said on my site, being a good driver is more about being sound mentally than being sound procedurally. anyone that says an a/f car is better to prepare a driver for nitro fc either hasn't driven, or isn't telling the whole truth. they are a good stepping stone, don't get me wrong, but to say they are BETTER, is not true. a good driver can jump in any type of car and be competitive because they are on their game mentally and make the necessary adjustments. let's look at two of the top prospects in the alky ranks, sean bellemeur and spencer massey. is spencer more prepared for a fuel ride because he has more experience putting it on the high side and easing off the clutch? has sean left at 6000 plus and pushed buttons on his shifter so many times he'll never master leaving at idle and not shifting? no and no. they are both top prospects because they are sharp drivers mentally. i'd be willing to bet spencer could jump in an alky fc and do well once he got used to the steering aspects.
it's just not worth it. tafc is thriving right now, and this would throw a major monkeywrench in it. i'm sure some EXISTING teams would switch, but how many new teams are going to come in vs teams that will either quit altogether or significantly scale back how many races they attend. if these teams that will run a/f only are out there, why aren't they in competition now? talk's cheap. it's real cheap when it comes down to turning the tafc class on it's ear.
that's how i really feel in case anyone was wondering
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i forget who said it on here, the cost of racing hasn't went up in 50 years, it's still everything you got. that applies to this debate. if you're fortunate enough to have the money to choose between a/fuel and blown, it's like the queen calling you up and asking you whether you want to eat dinner at the castle or the palace. either way you're still having filet mignon
and yes, i just switched to geico and saved a bunch on my car insurance.