1/4 mile tips

seisei_old · July 3, 2009 at 11:49 AM

hi

I'm going to Alastaro to test my K-code performance and i need some tips how to get fast start with manual transmission without breaking anything?

zray · July 3, 2009 at 12:17 PM

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hi

I'm going to Alastaro to test my K-code performance and i need some tips how to get fast start with manual transmission without breaking anything?

let the clutch take the abuse. It's the cheapest part of the drivetrain. You can burn out several clutches for the price of one transmission.

find the lowest rpm that will let you launch without bogging, and let the clutch out as fast as possible without wheel spin.

It just takes practice, and some experimentation.

Z. Ray

289kford · July 8, 2009 at 2:35 PM

Were you able to get out over the weekend, how did you do?

Edited by - 289kford on 07/08/2009 14:36:48

seisei_old · July 8, 2009 at 3:38 PM

I'm going to next weekend to ford nationals days in Alastaro.Let's see if mustang goes under 15 seconds.I try to get soft start with clutch.

is 5000rpm good time to change next gear?

can someone tell me how to make stop the hurst shifters rattle?

zray · July 8, 2009 at 4:34 PM

most rattles can be reduced by adding a shims or washers to the shifter arms at the rods.

I would shift at the maximum HP rpm. Probably closer to 6000.

Z. Ray

Edited by - zrayrichter on 07/08/2009 18:26:23

seisei_old · July 14, 2009 at 8:49 AM

the best start:

60ft=2,530

330ft=6,695

660ft=10,214

990ft=13,267

1/4mile=15,867

I change gear on 4500rpm, feels like car is moving better in 3000 - 4000rpm.

Edited by - seisei on 07/14/2009 08:55:51

Edited by - seisei on 07/14/2009 09:02:59

Edited by - seisei on 07/14/2009 09:46:33

seisei_old · July 14, 2009 at 9:07 AM

Sometimes i feel the peak in 3500rpm, but i'm not sure that did it come this time.

289kford · July 14, 2009 at 9:52 AM

what was you mile per hour? seems like you had some wheel spin. I think you may have shorted yourself shifting so early.

seisei_old · July 14, 2009 at 10:01 AM

83,89 mph was end speed.

pprince · July 14, 2009 at 10:42 AM

I shift at 6k

My best is 14.3 @ 100 mph

289kford · July 15, 2009 at 12:29 PM

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I shift at 6k

My best is 14.3 @ 100 mph

100 is very respectible. could you get in high 13's with a little more traction?

pprince · July 17, 2009 at 12:46 PM

I have taken 2 trips to the drag strip. The last time was 3 years ago.

I really enjoyed it and would like to do it again. Problem finding the time though

Traction was a problem as well as my reaction times.

The 14.3 @ 100mph was with 3.25 gears. I now have 3.80 gears.

seisei_old · July 19, 2009 at 2:56 PM

Here is link to my 1/4 mile

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Edited by - seisei on 07/19/2009 14:56:43

dunc289_old · September 14, 2009 at 11:14 AM

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I have taken 2 trips to the drag strip. The last time was 3 years ago.

I really enjoyed it and would like to do it again. Problem finding the time though

Traction was a problem as well as my reaction times.

The 14.3 @ 100mph was with 3.25 gears. I now have 3.80 gears.

oops, the text... oh yes...

I think the gears would be 3.89, also called 3.90's. and if you shift @ 6,000 RPM or slightly higher, you should see times drop and speed increase. Try it and see what you get, and then report back to us with the results, we ARE interested.

dunc289_old · September 14, 2009 at 11:16 AM

Beagle1 used to hit the strip, I wonder what his times were and what he used for shift points and rear ratio and tires???<img src=images/icon_smile_big.gif border=0 align=middle><img src=images/icon_smile_big.gif border=0 align=middle>

RPM_old · September 14, 2009 at 1:57 PM

Get some 7"-8" slicks and quite letting the new 5.0's put it on you.The old 289 at 7800rpm is where you should be.My ole 65 Super Stocker Mustang I use to bring out at 10,000rpm and shift it about 10,200rpm and man did it leave!...All shifters ring as that's why they are spring loaded.

dunc289_old · September 16, 2009 at 9:19 AM

I thought the stock cam profile peaked below 7,000 rpm, wouldn't you lose time letting it wind to 7800 ? What am I missing here? <img src=images/icon_smile_big.gif border=0 align=middle><img src=images/icon_smile_big.gif border=0 align=middle>

seisei_old · June 29, 2010 at 4:50 AM

My car total advance was 48 degrees BTDC ! .Now it is 36 degrees and feels like that i get more horsepower.I don't know what is the best advance..Next i change points and let's see what happen..

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