Mystery car goes to the track

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Nov 18, 2001 | 01:38 AM
  #1  
well....i ran 5 passes tonight....the final pass popped the head gasket and made quite a mess, no coolant in the motor or pipes though.

best runs of the night were:
13.37@107.80
13.443@110.84

this is on yoko street tires.....first gear was useless

well, let the tuning begin*after the head gasket is replaced*


*sigh*

it is an 88 iroc with 10lbs of vortec on it
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Nov 18, 2001 | 07:42 AM
  #2  
Tom,

I assume you ran at Firebird. What is the official track elevation there? I know Phx is about 1100 feet, so you might have a minimal amount of elevation correction to apply to your results.

While your heads are off, now might be a good time to pull the cam to determine its specs.

------------------
Willie

Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
Former Paxton (6-psig) with 50-hp nitrous: 12.043 @ 112.86 mph.
ATI D1SC (10-psig): 12.056 @ 116.62 mph.
All stats are altitude corrected for 3,100 feet using NHRA's Altitude Correction Table.

http://willie.camaro-firebird.org/

1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.
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Nov 18, 2001 | 07:59 AM
  #3  
replacing the gaskets is bad enough, im not pulling the cam too :P

I'm pretty sure its 1300 feet.

the car needs some tuning, im running 42 psi on 30 lb injectors.....now will be a good time to go to 24's

I don't know when i'll be able to change the head gasket, probably not anytime soon. I'm going to need some help on it and a bay at the shop, so probably a little later this winter.

When are you guys coming up to race? We have a dyno day on Dec 1st, i think it might be full but we have so many extras that we might just get it for another day.

Tom
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Nov 18, 2001 | 08:01 AM
  #4  
I tried to give it some throttle below 30 mph and ended up running a 14.7 lol......i was definetly not getting enough traction on the street tires at fireslick hehe
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Nov 18, 2001 | 08:35 AM
  #5  
replacing the gaskets is bad enough, im not pulling the cam too :P

Well, let me put it this way. Besides removing everything off the top of the engine to remove the heads,, you'll also have to remove both serpentine accessory brackets. That means in order to get to the cam, all you'll have to do is remove the water pump, timing gear, radiator and move the A/C condenser. That's not that much more work.

I'm pretty sure its 1300 feet.

Multiple your E/T by 0.9861 and your mph by 1.0143 to get altitude corrected figures. I always correct my numbers when posting on a nation-wide forum -- apples to apples. When I talk locally, I use my "real" figures.

the car needs some tuning, im running 42 psi on 30 lb injectors.....now will be a good time to go to 24's

Yep, I know. I agree that 24#ers will be an excellent choice.

When are you guys coming up to race?

It will probably be in January or February. You see, I planned to replace my head gaskets in December, but couldn't wait so I decided to do the job two weeks ago. I realized it would be simpler to pull the engine than to replace the gaskets in the engine bay. I then decided as long as the engine is out, that I would have a couple of other things done. I'm replacing my rings. I had a custom grind camshaft made and will strenghen the bottom end (replace bolts with studs). If my rods show any sign of stress, I will replace them with GM pink rods. Oh, and I'm replacing my Corvette aluminum heads too.

Before going to Firebird, I need to break in the engine and run at SIR at least once. Then I'll be ready for Firebird.

Willie

[This message has been edited by Willie (edited November 18, 2001).]
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Nov 18, 2001 | 09:07 AM
  #6  
holy hot rod batman!

what are you replacing the heads with? when are you going to bite the bullet and get a 350 or 383 stroker :P
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Nov 18, 2001 | 10:20 AM
  #7  
holy hot rod batman!

Call it an addiction....as we all know it can be....

what are you replacing the heads with?

It's a secret for now. Of course if you call me at work......

when are you going to bite the bullet and get a 350 or 383 stroker :P

Never. I do not want to be like everyone else. I want to prove to everyone that a 305 can be built to run with the best. I cannot describe the feeling I get when I receive a look of disbelief from guys that come up to me after a pass when I tell them that they've just seen a 305. Also, I'm at the point where NHRA regs call for a rollbar (11.99 or faster), which I am not willing to install on a daily-driven vehicle. So to go to a larger displacement engine would definitely put me in the 11's, where I don't want to be.

Lastly, I have to keep things in perspective and realize that my car is used for transportation first, racing second -- not the other way around.

Willie

[This message has been edited by Willie (edited November 18, 2001).]
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Nov 18, 2001 | 10:24 AM
  #8  
i had that realization as my car sat in a puddle of its own fluids last night
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Nov 25, 2001 | 10:07 PM
  #9  
Quote:
<font face="Verdana, Arial" size="2">Originally posted by Willie:

Multiple your E/T by 0.9861 and your mph by 1.0143 to get altitude corrected figures. I always correct my numbers when posting on a nation-wide forum -- apples to apples. When I talk locally, I use my "real" figures.
</font>
There is no account for altitude here, if this is how you calculate your sea level times than it's not gonna work... You need something that takes into account how high you were because your car will run slower and slower the higher you go...
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Nov 26, 2001 | 01:39 PM
  #10  
Chillphatcat, Im sure willie means that those are the correction figures for that track only....OF course the correction constant would change for different altitudes
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