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Autocross/Road Race rules questions?

1223 Views 60 Replies 0 Participants Last post by  my96dcmimpalass
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In prep for Oklahoma, I was reviewing the rules for both autocrossing and road racing, specifically points to determine classification.

Is there ever a review on these rules?

For example, I would like to know why underdrive pulleys are 1 point. I personally use underdrive pulleys only because of a gear ratio change, to ease the speed of the accessories due to higher cruising speeds.

I believe it is well documented that little, if any real hp is shown with this mod, especially since the water pump on an LT1 is driven directly off the cam instead of an accessory belt.

Meanwhile, an air intake is a free-be engine mod, one that has documented substantial hp gains. This makes no sense what-so-ever.

It actually penalizes those who choose to run a stock intake for car show purposes b/c many in the stock class will have an extra 10-15 hp with substantially less heat soak potential. I understand that many people have an intake mod, but I bet 90% of those with an intake mod have a cat-back too so this "free-be" makes no sense.

Is there anyway to petition the ISSCA directors or whoever on this issue?

Thank you for any input,

PJ Gross

PS- I would be happy to have "intake" added to the list as a 1 point item even if taking off the pulleys is not entertained, but I would certainly like a good explanation of why pulleys was picked as a point adder and intake was not given the power implications of both.
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<BLOCKQUOTE>quote:</font><HR>Originally posted by BAD ROD:
Hi Garry,

I like the rules update. But, I have a dumb question...
... On real hot days, I use my air conditioner on the cool down lap to get my second engine fan to come on and cool the engine quicker. Why do we have to turn the air conditioner off? Condensation on the track potential?

Thanks,
Mike
<HR></BLOCKQUOTE>


You got it right, we do not want water draining on the track, if we can help it.
You can use the A/C once you are off the track and in the paddock.

Best Regards,
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<BLOCKQUOTE>quote:</font><HR>Originally posted by lovess:
how many points going from 3.08 gears to 3.73 gears? i flunked math. thanks rick ;)<HR></BLOCKQUOTE>

3 points for your 3.73 gears.

If you have 3.42 gears, that would count as 2 points.

If you happen to have a Ford 9" with 3.55 final gears, that would still be just 2 points.

Best Regards,
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"Gar - Short answer, no. We each had two or three things written down that we wanted to discuss and no one remembered there was a question about superchargers & intercoolers. Les and I are already working to document a list of suggestions for then next round of changes, but you should expect the current point assessment to stay as it is for the rest of this year."

Ok, I figured that nobody brought it up, since nobody really addressed my multiply questions about it earlier in this post. Like I said, I am to far deep into the Race catagory to care about myself here, but others could benefit.

"Gar - Depending on how the system is done, an intercooler can double the HP gains from having just a turbocharger alone. I think most of the racing committee feels the current points are fair, but if you don't, please try to supply objective information regarding why intercoolers are not as effective as we seem to think they are. It may be that your intercooler isn't doing much, but that doesn't prove they are not effective for the majority who have them."

An intercooler does not directly increase HP. It simply allows you to run more boost from the supercharger without detonating the motor. Indirect increase still warrants point deduction, but not a 50/50 tie with the direct cause of the HP increase. An intercooler can never double the HP of a motor. It might allow you to run more boost on a supercharger increasing HP maybe 20% max. And this is more so on really high output systems. Not a stock bolton car.

"Gar - Hey, we get double wammied for headers and cat-back. I've seen supercharger installations that use the stock air box instead of a cold air intake, so if you were really worried about the point, you could plumb it that way. If you choose to use a cold air intake, you choose to take the point that goes with it."

So do I, this is not the same as what I said. If you buy a turbo kit, the turbo header pipes would be part of the turbo point deduction, not a seperate header point. Also no supercharger/Turbo kit is desined to run on the stock intake. It was brought up about the 19 piece dash kit in the car show rules. Does it count as 19 mods, or one mod. One mod of course. So should the parts that go into a supercharger kit be counted the same.

"Gar - I agree completely. Before I was a director myself, I brought this up with the racing committee and was pretty much ignored. Consider this on the list of discussion items, along with turbochargers, superchargers and intercoolers. What do you think would be a fair assessment for PCM programming and for an additional ignition system?"

The 2 points should be split up on this one. They should not be lumped together.

"Gar - Let's do a little 'Root Cause Analysis', to use a current catch phrase. You may consider programming a necessity for your supecharger, you may consider fuel injection revison a necessity for your supercharger, but the supercharger is NOT a necessity - it's a want. Add to that people can and do install superchargers and turbochargers without changing injectors, without changing the intake manifold and without reprogramming the PCM. It all leads to aless than convincing argument. I agree that if you don't do all those things, the performance will not be as good as it could be. It all comes down to the question: "Do the changes contribute to a performance gain?" If the answer is yes, then it is fair to assess points."

This is a catch all isn"t it. Kinda.
Question. If I had a stock car, and went and put 30+lb injectors on it, I would get deducted the point. Would I increase my performance? Absolutly not. In fact, I would suffer from not having the proper pulse width tune in the PCM. It kinda goes back to the "complete kit" thing. For my supercharger kit/setup programming and fuel injection revison are a necessity. Otherwise they would not be included in the kit. Some kits do not require them, but they are low boost kits without the fear of detonation.

"Gar - Safety? Would they still be safety if you didn't have the supercharger? Do they contribute to driver safety, or just longevity of the engine? Are cars that do not have injectors, programing, ignition and intercoolers unsafe? Should we not allow them to compete because they lack such essential 'safety' items? In short, I would like a more convincing argument that these are essential safety items."

These are simply safety items for the reliability of the motor. All included in the "kit" for these reasons.


I enjoy discussing these things and hope to continue to help out, or cause trouble
, as much as possible.

Thanks for your time Gary,

Mav
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so mav, you are going to be there right? i love you short time if no showey!!
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Be where? Tulsa? Wouldn't miss it for the world.

Mav
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mav, yes i was asking if you will be in tulsa!! i am from the old school and i was taught to respect my elders and the men who serve my country for my freedom!!!! did i tell you i can cook and plan items like ed runnions b-day party? let me know bro if you will be in town for the greatest impala party that issca is going to throw!! since you have gi numbers, i will even throw bonus point to you!!!! (no mo you dont count ) mav look for a low dcm
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Hey! Who you calling elder? I'm not that old. Although I do look it. Anyways, I will be there, barring the war moves over here.

Mav
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Hello?? Gary? Anyone?

Mav
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Can anyone tell me why removing the AIR pump is 1 point? I understand the removal of emissions devices are 1 point, but my dealer told me specifically that the AIR pump is *not* an emission device, which is why I couldn't get it repaired after 36k, but still under 50k emissions warranty.

Any insight?

TIA
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Well Bob....for starters the AIR pump removal (along with tubes and brackets) is 7 lbs off the front of the car.
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Well, if it was a weight issue, I think there should have been a provision for that. I just checked the rules again and, unless I missed it, it seems I could pull all of my carpet out (how much weight is that?) to reduce weight and not get dinged a point for it.
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Well, it's good to know that we've got folks who are scrutinizing the rules to find every little exception/loophole they can
.

BTW, there are more loopholes than that....by a long shot. Get creative here :D
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Too bad I'm too lazy to take the 6pt harness eye bolts out to actually take the carpet out, though. Wunder how noisy that would be w/ no insulation under my bum....
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<BLOCKQUOTE>quote:</font><HR>Too bad I'm too lazy to take the 6pt harness eye bolts out to actually take the carpet out, though.<HR></BLOCKQUOTE>

Take a razor and cut the carpet (in a tight circle) right around the eye bolt.

<BLOCKQUOTE>quote:</font><HR> Wunder how noisy that would be w/ no insulation under my bum.... <HR></BLOCKQUOTE>

Having done it before (temporarily), I'll say that "quiet" isn't a word I'd use to describe it :D
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I'm just impressed that this is the first thread I've started that has gone over 50 replies!


Bob, that is interesting that the air pump is not an emissions device. Maybe we should have a reconsideration on that one?

And no, I'm not trying to squeeze any points at all. I have a ton of points to give in modified so I'm not concerned.

I am, however, finally signed up for Tulsa so I'll see all of you guys there!

-PJ
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maybe i'll put my air pump back on? (not) that 1 point puts me in modified class and i've never run an auto-x or road course! ;)
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Ed....hmmm now you get me thinking.... I got plenty of razor blades..... oh...nevermind. Forgot about that heavy @$$ amprack in the trunk....DOH! Nice thinking, tho... :D
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I thought my car was mostly stock but the rules said modified. Now with the new points I find I have a "race" car. How about a senior citizen point reduction for AARP members? Then I won't have to lay on the cold garage floor to install the air pump.
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<BLOCKQUOTE>quote:</font><HR>Originally posted by Sir No ConeSS:
Can anyone tell me why removing the AIR pump is 1 point? I understand the removal of emissions devices are 1 point, but my dealer told me specifically that the AIR pump is *not* an emission device, which is why I couldn't get it repaired after 36k, but still under 50k emissions warranty.

Any insight?

TIA
<HR></BLOCKQUOTE>

I think it's a fair bet that when engineers at GM first designed the motor, the AIR pump *was* considered part of the emission system. If they didn't design it as part of the emission system, I doubt they would have included it in the first place, becuase they are always looking for ways to save a few pennies here and a buck there. It would have been cheaper to leave it off.

When the tight-wads at GM faced the prospect of having to pay to replace many failing units, they decided to stop calling it an emission item and got out of covering what would have been a warranty expense.

Anyhow, if it's not an emission item, what is it?

Garry
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<BLOCKQUOTE>quote:</font><HR>Originally posted by AllenIDOXLR8:
I thought my car was mostly stock ...<HR></BLOCKQUOTE>

Let's see, according to your sig you have intake & exhaust mods, performance PCM programming, gears, springs, shocks, sway bars and control arms.

Just what to you suggest should be considered "modified"?

All kidding aside, it looks like have all the quick turn mods covered and should do pretty well at the track.

Now, if I could figure out just how to qualify it, I would consider *adding* a few points for your "senior experience" advantage. Maybe the racing committee could include that in next year's rules.

Garry
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