I hate to say it, but "Super stock" or "Factory Stock" guys have more in the motor than some of us in the entire car.
1320stang said:
But there are guys running 'stock' parts in NHRA Stock that will kick just about anything you can build in the butt. And they're running Ford heads, not even arftermarket iron heads.
I was going to do a (in NMRA events) factory stock car. Basically a 3200lbs
fox-body with a maximum of 311 inches and here are the permitted cylinder heads:
Permitted Cylinder Head List, Parts Number: These are the only permitted cylinder heads and part numbers for competition in this category. If your cylinder head is not on this list, it is prohibited.
1) Stock Ford OEM 5.0 HO Cast Iron Cylinder Heads. (*Deduct 250#)
2) FRPP/SVO GT-40 Cast Iron Cylinder Heads
3) FRPP/SVO GT-40P Cast Iron Cylinder Heads
Camshaft requirements:
Stock lobe 5.0 HO or 4.6L camshaft required. Specified duration, lift, and lobe separation required.
5.0 HO: Camshaft maximum lobe lift is .278”; Minimum lobe lift is .270. Maximum valve lift at the retainer not to exceed .480”.
Lobe duration is checked at the below specified lobe lifts.
Lift Maximum duration
.050” 211
.100” 179
.150” 148
.200” 115
Maximum lobe separation angle – 117 degrees
Minimum lobe separation angle – 115 degrees
And the intake requirements:
1.21c) PERMITTED INTAKE MANIFOLD LIST, PART NUMBERS:
If your intake manifold is not on this list, it is prohibited.
1) Stock OEM Mustang-specific 5.0 EFI Intake – Upper & Lower
5) Ford Explorer – Upper & Lower
6) SVT Cobra EFI – Upper & Lower, PN# M 9424 D51, M 9424 E51
If all I wanted to do was be competitive (lets say 3rd place), at all but 1 NMRA event this year I would at least have to run 12.0s consistently. So add it all up on the handy math calculator and I get for a weight of 3200# and a trap speed of 113, HP of ~360fwhp. If I wanted to win, Shawn Johnson/Jeff Schmell are running 11.70s @ 116, which in the calculator nets me ~390fwhp. Thats about where my 306, with ported Windsor Jr lites, custom cam with much bigger specs than stock, and full exhuast is running (factory stock only allows tubular "shorty" headers).
Tell me there isn't a lot of "hidden" money in these things . . .
I would have run total seal's gapless rings . . . $250
The lightest set of pistons I could afford . . . $600 and up
might as well throw in the lighest rotating assembly . . .
Coatings for piston top/rods/crank . . . $700
Custom cam . . . $350
So just because it has "stock" parts doesn't mean it did not cost more than your motor with aluminum heads and "bling" parts.