Drag race - Kirkham 65 side-oiler vs Ferrari 458 italia

[tkb289]

Originally Posted by Don

Jamo, will you be attending as the " official arbitrator " in case of any participant differences on the rules etc ? ...

Don,

Good suggestion ... if Jamo is not too busy working with the umbrella girls ...

[Buzz]

Given the size of Blitz's motor, what about a second gear launch? Any of you big-cube, lighter car jockeys ever tried this? How did it compare to a careful conventional launch?

[KevinM]

Buzz,

Good Idea, but we need to know what the Ring & Pinion ratio is.

Does anyone know?

Blitz, what is your speed at 5,000 RPM in first and second gears? If your speedo is accurate, we could estimate it from that.

Kevin

[undy]

Originally Posted by RodKnock

Let's not get carried away here. Does Dan's Kirkham have the new Cammer heads? How many 482's have dyno'ed at 750 HP? Zero, that I'm aware of. How many 482's have been dyno'ed over 700 HP? Zero, that I'm aware of.

Gary Sharapa has written that his Cobra with a Keith Craft 496 and a SOLID ROLLER cam made 523 rear wheel HP, 681 HP at the flywheel.

http://clubcobra.com/forums/showthread.php?t=107770

What cam and heads does Dan have on his Kirkham? If the shop claims 550 rear wheel HP, then what the heck is in there?

Could be standard numbers in Dan's case, not SAE???

[undy]

Originally Posted by Buzz

Given the size of Blitz's motor, what about a second gear launch? Any of you big-cube, lighter car jockeys ever tried this? How did it compare to a careful conventional launch?

I can tell you this... If he does a second gear launch HE WILL LOSE!

The only chance is perfecting a 1st gear launch.

[Silverback51]

Lot's of speculation regarding RPM's but it does not appear anyone has done their research.

The 482's on Keith's site call out a special grind Comp Cam hydraulic roller cam. I then looked at the Comp Cam site for FE hydraulic roller cams. Both sites list a maximum redline of 6200.

Please note that Keith does call out a "special grind", so it's possible that the 511 is higher, but if it is, I would not put it beyond 6500. It's the lifters that are the controlling factor.

[Don]

A search for " drag racing practice trees " brings up a number of web sites, such as :

" Practice Tree, Full Size, 6 ft., Aluminum, 25 lb. Base, 40 ft. Cable, Lighter Adapter, 25 Watt Bulbs, Kit "

http://www.summitracing.com/parts/PTS-3100/

http://www.summitracing.com/parts/PTS-3100/?rtype=10

Anyone ever use ?

Not a drag racer, but is there different opinions on using the water box depending if using street tires, DOT drag tires, slicks, etc ?

[Silverback51]

One big issue with the water box with street cars is that the front tires then carry water with them into the staging area. If you are going to use the water box, then drive around it, and then back up into is to the front tires stay dry.

Remember, the front tires on drag cars are generally skinny.

[Excaliber]

Silverback says,

...maximum redline of 6200.

That what I was saying earlier. The hydraulic rollers are generally limited to even less than that. Going beyond 5,800 or so requires some serious valve train geometry and lifter technology ($$$). Not typical of a high rpm engine, even less so with a really BIG engine.

I wonder what kind of cam/valve setup the Ferrari F150 runs? Solid lifters I would think, due to it's extreme rpm limits.

[G_Edmonds]

The waterbox should not be used with street tires. You may burn all the water off the tires but you throw it up on the inner fenders to drip back down on the tires or track surface. If you're not running drag tires, you don't heat them that much, just spin 'em good to clean 'em off then go concentrate on the tree.

[RET_COP]

I ran my full floating, pink rod internally balanced, NA, BBC, 468ci, to 7600rpm 10.00 @135 3,400lb camaro every weekend for two seasons without any problems.

The Cobra easily wins one race with PROPER TRACTION and a patient driver with some track time, based on what the KC engine can produce. Right now the cobra driver does not even know if his cars rear tires will bite evenly. Who is tuning the rear suspension for him?? (there is no time factored in for it). While the tires are spinning ( because they will, unless he is very very patient) the rear very well could slide left or right.
I see alot of problems here with a high horsepower Cobra and NOTHING being checked prior to a full launch practice session. Could be dangerous also.

I don't know if BLITZ has the full picture of this if he is running this car on the edge like he should but probably wont be able too.

Good point about taking the WIN light vs ET. We may have the faster car lose the bet



Lou


Lou

[Mdman352]

Whoever lights the WIN light wins. Whoever lights the win light 3 times wins big time.

[Jamo]

Originally Posted by tkb289

Don,

Good suggestion ... if Jamo is not too busy working with the umbrella girls ...

Hehehe...I'd just love to go watch...need a break (unions have gotten a bit uppity lately).

Big revs from big cubes? Not really gonna be the deciding factor in this matchup, but what's the big deal? With good stuff up top, either type of solid can hit it easy, and hydraulics are right there. Boghosian put T&Ds and stuff in just so mine could.

It's like dive watches that'll go to 3,000 feet.

Why? Cosby's routine assplains it perfectly.

This is a drivers' race.

[Buzz]

I just knew Jamo would get watches in on this discussion somewhere - it was only a matter of time.

[Jamo]

Ahem...timing is assolutely everything.

[HealeyRick]

Originally Posted by Jamo

Ahem...timing is assolutely everything.

Funny typo considering your avatar!

[Buzz]

Thass no typo. He does it all the time - Ass anybody whose been around for a while.

[undy]

Originally Posted by Excaliber

Silverback says,

That what I was saying earlier. The hydraulic rollers are generally limited to even less than that. Going beyond 5,800 or so requires some serious valve train geometry and lifter technology ($$$). Not typical of a high rpm engine, even less so with a really BIG engine.

I wonder what kind of cam/valve setup the Ferrari F150 runs? Solid lifters I would think, due to it's extreme rpm limits.

Mine actually pulls hard all the way past 6K and my hydraulic roller in my Z06 pulls hard past 7K. How much experiance with hydraulic rollers do you actually have?

[750hp]

Assolutely gets 209 search results on CC....
Here's one of the first search results on Google


Did anyone call out BLITZ on his "800 horse" claim in the track video? Whatever the cam, rpm, cubes, compression... if the motor can get 550 to the ground as per the recent chassis dyno results, the race is his for the taking.

That said, I'm still leaning towards the Ferrari. A high stakes poker player must need nerves of steel and massive ability to control their emotions when required, but I'm not sure how that will transfer to an ability to string a perfect 1/4 mile run together.

[Jamo]

damn Asstralians