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Did I get slower?

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Old Oct 28, 2008 | 12:29 AM
  #21  
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The speed is undisclosed . There are no extra shifts. I'm starting to think the culprit is the rev range that I am in. Before I was about 500 rpm higher at first and 40. Now I'm 500 rpm lower at second and 40. So I'm guessing if I started at say 45 and second, I should garner the acceleration that I need.

Last edited by xkilo16x; Oct 28, 2008 at 10:44 AM.
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Old Oct 28, 2008 | 01:43 AM
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If you have to start your race in a higher gear the 410s did hurt your rolling start acceleration. If you were to figure out your overall gear ratio factoring in your higher transmission gear selection I bet you are worse off now.
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Old Oct 28, 2008 | 04:08 AM
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Remember when the car used to be built for the race? Now the race is built for the car.

Last edited by SpinMonster; Oct 28, 2008 at 04:43 AM.
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Old Oct 28, 2008 | 07:58 AM
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Originally Posted by xkilo16x
I feel that if I start from first gear and lets say 30mph, I'll be extremely traction limited, especially in New Jersey's October weather. I'll give it a try though and see how things go. Thanks guys
So bottom line you spent xxxx $$ and did not gain anything ..if you use 1st gear you spin, 2nd gear its slower...

Try Drag Radials.. and only race when its over 60 deg, on a sunny day, with humidity at 50%

Don't power/speed shift, and you will be fine.. Just as a side note I went Atco made some runs all in the low 12 sec range but you wouldn't know the difference from a 12 sec to a 13 sec run..unless you paint lines in the road, 1320' and have the stop watch holder helping you... good luck with that 6 cyl BMW.. You will get him sooner or later..
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Old Oct 28, 2008 | 08:20 AM
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Originally Posted by xkilo16x
We didn't really get a change to go past 90-100ish. There are no extra shifts. I'm starting to think the culprit is the rev range that I am in. Before I was about 500 rpm higher at first and 40. Now I'm 500 rpm lower at second and 40. So I'm guessing if I started at say 45 and second, I should garner the acceleration that I need.
Thanks for pointing out that you are street racing. Truly foolish activity and behavior. If I were you, I would remove any references to street racing but for reasons other than to avoid the "lock" - how about you have published an admission of wrongdoing for the world to see. You provided enough personal information about yourself last year that anyone can figure out who you are - you must be the only (or one of a few) EBHS student with a C6. Your mods signal who you are.

When you get a series of moving violations from the EBPD for racing on Route 18, give me a call. Even with the "Corvette Forum" client discount, I should be able to make enough money on you to do my next series of mods. You know that supercharger you want? I (or some other lawyer) should be able to buy it with the money you will eventually pay in counsel fees...............

Judge Mayo is going to love you when you get in his Courtroom.

And don't forget your classmate that got killed last year on Route 18 by a speeding "hit and run".

That being said, rent an airstrip, find your rpm sweet spot and toast the M. Do your racing on a closed course.
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Old Oct 28, 2008 | 08:26 AM
  #26  
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I'm surprised that this thread is still open
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Old Oct 28, 2008 | 09:53 AM
  #27  
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Originally Posted by 07 Z51
Thanks for pointing out that you are street racing. Truly foolish activity and behavior. If I were you, I would remove any references to street racing but for reasons other than to avoid the "lock" - how about you have published an admission of wrongdoing for the world to see. You provided enough personal information about yourself last year that anyone can figure out who you are - you must be the only (or one of a few) EBHS student with a C6. Your mods signal who you are.

When you get a series of moving violations from the EBPD for racing on Route 18, give me a call. Even with the "Corvette Forum" client discount, I should be able to make enough money on you to do my next series of mods. You know that supercharger you want? I (or some other lawyer) should be able to buy it with the money you will eventually pay in counsel fees...............

Judge Mayo is going to love you when you get in his Courtroom.

And don't forget your classmate that got killed last year on Route 18 by a speeding "hit and run".

That being said, rent an airstrip, find your rpm sweet spot and toast the M. Do your racing on a closed course.
Whoops. Haha. Tried to keep it rather subtle. Been through a couple tickets now. I wasn't the idiot I was last year. Playing it smart now and almost always in the right lane at 45. Thanks for the advice you offered me though.

There has been a history of fast cars at EBHS, I believe, there was a yellow C6 Z51 three years back. I'm an RU student now though.

Last edited by xkilo16x; Oct 28, 2008 at 09:58 AM.
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Old Oct 28, 2008 | 10:35 PM
  #28  
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Originally Posted by jpee
Can someone with a little more knowledge than me jump in here, I've only been racing for 40+ yrs... Can he OP really use a stop watch and click it on launch, then click it at 80 mph & know if he is 1 or 2 "Tenths" Faster or Slower.. remember .10 (1 Tenth = app 1 car length at app 100 mph)

So you saying you and a buddy get in your car, he says GO.. you nail it he clicks the stop watch.. at 80 mph he looks at the speedo.. and clicks it..

You do this 3 times and its accurate to .050 ( a track is accurate to .001 1 thousandth) but I'll give you some leeway..

So you have 3 runs.. do you then take an "AVERAGE" and then do your mods.. and make 3 more runs... do you know if your launches are the EXACT SAME? or did you spin a little more..

You are getting TIME it take you to hit 80 mph... but if you spin just .2 your will be way off..

I'd like some "EXPERIENCED DRAG RACERS to pipe up with "Honest" opinions.. as to which method would be better...
Hey I'm old but am smart enough to know if your method is better I'll start doing it your way...



Take John & 07 Z51's advice. E Town is not that far and a much safer place to play. You can just as easily destroy your rear on Route 18, Riders lane, Route 1 or Route 130 as well as the strip......as I recall there is no signal for I am now going exceedingly fast behind/in front of or next to you!

If you are concerned about breaking parts check out Rangers launch techniques (you can use the search function on the CF) Most guys blow away their tires with the 4.10s because they do not know how to launch the car.

You will have to adjust the rear tire pressure accordingly as you do not want to dead hook. If the car exhibits wheel hop LIFT. It is better to abort a run then to destroy parts! Then again you could also go to one of the many track rentals sponsored by Cartek or go to the Corvette Challenge and speak with one of us much older guys (what do we know as we have been doing this longer than most of the members are old)


BTW It is better to wave rather than rev when you pass either me or my son

Last edited by Tommy D; Oct 28, 2008 at 10:41 PM.
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Old Oct 28, 2008 | 11:39 PM
  #29  
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I've gone down the trip for about 10 passes this past season and only 4 the season prior to that. I think I put down decent numbers back in March and April, did my tune and manifold, and pretty much stopped doing obnoxious things up til the recent gear swap.

Have I generally wave though, if I've revved before, then I apologize. I'm not sure I've caught you around, which is weird, since I used to live in Monroe, and still have family there.
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Old Oct 29, 2008 | 07:20 PM
  #30  
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Originally Posted by xkilo16x
I've gone down the trip for about 10 passes this past season and only 4 the season prior to that. I think I put down decent numbers back in March and April, did my tune and manifold, and pretty much stopped doing obnoxious things up til the recent gear swap.

Have I generally wave though, if I've revved before, then I apologize. I'm not sure I've caught you around, which is weird, since I used to live in Monroe, and still have family there.
Hey no need to apologize People sometimes get the wrong idea when we rev our engines, blow our horn & etc.......
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Old Oct 30, 2008 | 08:51 AM
  #31  
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let me qualify this...for those that cant start from 0 and run to 80 or 0-100 run from 20-80 or 20-100, if you cant click a stop watch at the same time you mash the gas you probably should not be behind the wheel of a car. you will know 100% of the time IF you gained or lost anything. I did this for years with my buick turbo t and years with my mustang, the fact is when i did get to the track i was faster all the times as i validated the changes with a stop watch.
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Old Oct 30, 2008 | 09:08 AM
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Originally Posted by 9secondflat
the fact is when i did get to the track i was faster all the times as i validated the changes with a stop watch.
I promised another person I WOULD NOT make fun or make sarcastic remarks about other posters. & I will do my best to keep my word...

I'll answer you post with a question...

The times that you did at the track were faster why? Could it be they were more "ACCURATE" or whoever was clicking the stopwatch was a little "inconsistent" .. I'm only asking.. like I said your way might be better than NHRA and all the race tracks around the country..

Good luck with the stop watch, and keep away from "John Law"
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Old Oct 30, 2008 | 09:17 AM
  #33  
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Originally Posted by 05 silver c6
For what it is worth I changed my gears from 2.73 to 3.42's and noticed ZERO difference in the 1/4 mile. The car was no doubt quicker off the line however, when i strached its legs to the quarter mile my times did not change.

Frustrated and depressed I had MTI racing install a A&A Vortech Supercharger and tuned it and my frustrations and depression all of a sudden dissapeared. BTW I have no problems with M3, M5, M6's or any other M's.
My believe is that that main advantage to gears is twofold. One is drag racing IF you have sticky tires that can handle the launch. Second is for instant reponse. But in racing, instant response is dependent upon your speed and what gear you are in. I think that re-gearing has little effect on actual performance except as stated in #1 above.

At the end of the day, you are still dealing with the same amount of horsepower, and horsepower is still the main driver in the cars performance - especially from a roll.
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Old Oct 30, 2008 | 09:48 AM
  #34  
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Originally Posted by xkilo16x
I just picked up my gears, 4.10s, :
Yes, you got slower! 4.10s ate up about 15rwhp. You have to run your car harder to just maintain norm speed.....On the track, after 110mph you'll feel the car "slowing down" 4.10s are only good for jumping on someone from 4.5K rpms.......but in an instant you'll need to shift and loose what you gained on the jump!

I had 4.10s loved them for 2 weeks and then ...... I stepped down to 3.90s and I absolutly LOVE them

From what I read, we both have similar driving habits.......3.73's or 3.90s are the way to go
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Old Oct 30, 2008 | 10:11 AM
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Damn, I'm kinda regretting it now then. No turning back now though. Gotta boost the car to make up for my mistake then.

Hey Ed, do you think ECS will swap 3.90s into the car for a minimal fee or will they charge the 1xxx that is cost to do them in the first place?
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Old Oct 30, 2008 | 10:13 AM
  #36  
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Originally Posted by C6 DVL
Yes, you got slower! 4.10s ate up about 15rwhp. You have to run your car harder to just maintain norm speed.....On the track, after 110mph you'll feel the car "slowing down" 4.10s are only good for jumping on someone from 4.5K rpms.......but in an instant you'll need to shift and loose what you gained on the jump!

I had 4.10s loved them for 2 weeks and then ...... I stepped down to 3.90s and I absolutly LOVE them

From what I read, we both have similar driving habits.......3.73's or 3.90s are the way to go
It seems that we may also be associated to similar circle of car enthusiasts. Are you attending the Turkey Run?
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Old Oct 30, 2008 | 11:48 AM
  #37  
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Originally Posted by xkilo16x
Damn, I'm kinda regretting it now then. No turning back now though. Gotta boost the car to make up for my mistake then.

Hey Ed, do you think ECS will swap 3.90s into the car for a minimal fee or will they charge the 1xxx that is cost to do them in the first place?
it's a learning curve every application has it's purpose.

Originally Posted by xkilo16x
It seems that we may also be associated to similar circle of car enthusiasts. Are you attending the Turkey Run?
I think we also ran into each other at Etown when you just got the car
I'll be on the Turkey Run

see on the 16th
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Old Oct 30, 2008 | 04:12 PM
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Originally Posted by C6 DVL
Yes, you got slower! 4.10s ate up about 15rwhp. You have to run your car harder to just maintain norm speed.....On the track, after 110mph you'll feel the car "slowing down" 4.10s are only good for jumping on someone from 4.5K rpms.......but in an instant you'll need to shift and loose what you gained on the jump!

I had 4.10s loved them for 2 weeks and then ...... I stepped down to 3.90s and I absolutly LOVE them

From what I read, we both have similar driving habits.......3.73's or 3.90s are the way to go
Yeah, 3.90's eat only 1hp and 4.10's eat 15hp.

Its you again!!! Running them FI trap speeds with a H/C car and spreading misery to other tuners. Remember, I'm in NY from Nov 14-24th. Watch for the forum get-together. Its not the same without your humor.

I post in jest people. Dont take it serious.
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Old Oct 30, 2008 | 04:40 PM
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Originally Posted by SpinMonster
Yeah, 3.90's eat only 1hp and 4.10's eat 15hp.

Its you again!!! Running them FI trap speeds with a H/C car and spreading misery to other tuners. Remember, I'm in NY from Nov 14-24th. Watch for the forum get-together. Its not the same without your humor.

I post in jest people. Dont take it serious.
I keep tellin them the sky is falling but nobody wants to believe me

See you then
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Old Oct 30, 2008 | 04:46 PM
  #40  
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Originally Posted by C6 DVL
Yes, you got slower! 4.10s ate up about 15rwhp. You have to run your car harder to just maintain norm speed.....On the track, after 110mph you'll feel the car "slowing down" 4.10s are only good for jumping on someone from 4.5K rpms.......but in an instant you'll need to shift and loose what you gained on the jump!

I had 4.10s loved them for 2 weeks and then ...... I stepped down to 3.90s and I absolutly LOVE them

From what I read, we both have similar driving habits.......3.73's or 3.90s are the way to go
I personally don't think you gave the 4.10s enough of a chance but I am interested in your 110mph claim. Are you saying that at and past this point(110mph) the 3.90s accelerate quicker than the 4.10s?
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