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Critique 1/4 mile run

Tech questions that don't fit above forums

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redliner
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Re: Critique 1/4 mile run

Post by redliner » Wed May 30, 2018 8:53 am

John Wallace wrote:
Wed May 30, 2018 8:23 am
Not sure on the spring rate.
It depends on some data on the suspension, around 200 lbs probably?

Try this link:
Spring Rate

I made many launches on my car to see where the bars needed to be for a good 'hook'.
(I have ladder bars though, 4 links lot more adjustments)
Some made a huge improvement in hooking. Then start on the springs, then the shocks.

:)
Thanks John! That is a big help! What type of shocks do you use? Varishock?

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John Wallace
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Re: Critique 1/4 mile run

Post by John Wallace » Thu May 31, 2018 11:44 am

I bought them a long time ago, seems like they were Strange possibly?

:?:
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redliner
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Re: Critique 1/4 mile run

Post by redliner » Thu May 31, 2018 2:14 pm

John Wallace wrote:
Thu May 31, 2018 11:44 am
I bought them a long time ago, seems like they were Strange possibly?

:?:
Thats who I planned on going with but Varishock is made in USA also.

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af2
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Re: Critique 1/4 mile run

Post by af2 » Sun Jun 03, 2018 2:26 pm

Summit had a sale on theirs when I bought them, made by Strange and saved $100 on the pair. I am running 95 lb springs.

The most important thing is to scale the car when you change.
GURU is only a name.
Adam

redliner
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Re: Critique 1/4 mile run

Post by redliner » Mon May 27, 2019 8:19 pm

Up date! New low et. 1.447, 4.150, 6.448, 106.44, 8.446, 10.148, 131.69. Sluggo off the line but a 25.25 mph gain in the top 1/2 of the track!!!! What do you guys glean off this info you can help me with?

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Re: Critique 1/4 mile run

Post by maxracesoftware » Wed May 29, 2019 2:24 am

Critique 1/4 mile run

Post by redliner » Mon May 28, 2018 12:03 pm
Hi guys, Can you tell me what you think of these numbers and where there is room for improvement? Thanks! 414 sbc, 11.5-1, Liberty faceplated TKO 600, 4.88 Olds in a 1942 Stude Champion coupe. 3100 lbs. 60'- 1.446,330'-4.262,1/8- 6.587,mph- 105.59, 1000'- 8.597,1/4- 10.306,mph-131.02
redliner wrote:
Mon May 27, 2019 8:19 pm
Up date! New low et. 1.447, 4.150, 6.448, 106.44, 8.446, 10.148, 131.69. Sluggo off the line but a 25.25 mph gain in the top 1/2 of the track!!!! What do you guys glean off this info you can help me with?
more Info for you to look at :
good correlations :
You do not have the required permissions to view the files attached to this post.
MaxRace Software
PipeMax and ET_Analyst for DragRacers
http://www.maxracesoftwares.com
PipeMax v4.50 Download Link : http://www.mediafire.com/file/4x3fwqub0 ... 0.zip/file

redliner
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Re: Critique 1/4 mile run

Post by redliner » Wed May 29, 2019 7:02 pm

maxracesoftware wrote:
Wed May 29, 2019 2:24 am
Critique 1/4 mile run

Post by redliner » Mon May 28, 2018 12:03 pm
Hi guys, Can you tell me what you think of these numbers and where there is room for improvement? Thanks! 414 sbc, 11.5-1, Liberty faceplated TKO 600, 4.88 Olds in a 1942 Stude Champion coupe. 3100 lbs. 60'- 1.446,330'-4.262,1/8- 6.587,mph- 105.59, 1000'- 8.597,1/4- 10.306,mph-131.02
redliner wrote:
Mon May 27, 2019 8:19 pm
Up date! New low et. 1.447, 4.150, 6.448, 106.44, 8.446, 10.148, 131.69. Sluggo off the line but a 25.25 mph gain in the top 1/2 of the track!!!! What do you guys glean off this info you can help me with?
more Info for you to look at :
good correlations :
Thanks Max! It looks like ( as I knew) my bottom end lacks alot! What is your opinion ?

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Re: Critique 1/4 mile run

Post by maxracesoftware » Thu May 30, 2019 12:16 pm

redliner wrote:
Wed May 29, 2019 7:02 pm
maxracesoftware wrote:
Wed May 29, 2019 2:24 am
Critique 1/4 mile run

Post by redliner » Mon May 28, 2018 12:03 pm
Hi guys, Can you tell me what you think of these numbers and where there is room for improvement? Thanks! 414 sbc, 11.5-1, Liberty faceplated TKO 600, 4.88 Olds in a 1942 Stude Champion coupe. 3100 lbs. 60'- 1.446,330'-4.262,1/8- 6.587,mph- 105.59, 1000'- 8.597,1/4- 10.306,mph-131.02
redliner wrote:
Mon May 27, 2019 8:19 pm
Up date! New low et. 1.447, 4.150, 6.448, 106.44, 8.446, 10.148, 131.69. Sluggo off the line but a 25.25 mph gain in the top 1/2 of the track!!!! What do you guys glean off this info you can help me with?
more Info for you to look at :
good correlations :
Thanks Max! It looks like ( as I knew) my bottom end lacks alot! What is your opinion ?
a typical NHRA SuperStock SS/J Class Car will accelerate to these ET/MPH times :
anywhere from 1.370 to 1.382 60 Feet ET's ....so you should expect to reach those numbers
with better Launch/Traction Hookup

Code: Select all

  Feet   ET    real MPH (*Time Slip MPH)
   60= 1.3820  46.1644 
  330= 4.1240  85.0472 
  594= 6.0103  104.3876 
  660= 6.4340  107.9873 (*106.1874)
  934= 8.0692  120.3856 
 1000= 8.4390  122.9538 (*121.6697)
 1254= 9.7986  131.5975 
 1320= 10.1380  133.5747 (*132.5861)

0  to 30 MPH  ET= 0.6392 at 18.0 Ft
0  to 60 MPH  ET= 2.2084 at 124.6 Ft
0  to 80 MPH  ET= 3.6957 at 278.1 Ft
0 to 100 MPH  ET= 5.5234 at 521.0 Ft
0 to 120 MPH  ET= 8.0147 at 924.4 Ft
0 to 140 MPH  ET= 11.3289 at 1559.0 Ft

 Ft    ET      MPH     GForce
-1  -0.1935   0.0000   0.0000
0   0.0000   7.0462   1.6598
your acceleration rate starts to match the SS/J Car's around 660 FT upwards
and your HP output is similar ,
however, your HP output after 1000 FT starts to fall-off as compared to a SS/J car
so i'd look for the cause of this .

you should be around 132+ MPH at 1320 FT ET Slip MPH,
and not just 131's
MaxRace Software
PipeMax and ET_Analyst for DragRacers
http://www.maxracesoftwares.com
PipeMax v4.50 Download Link : http://www.mediafire.com/file/4x3fwqub0 ... 0.zip/file

redliner
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Re: Critique 1/4 mile run

Post by redliner » Fri May 31, 2019 11:07 am

maxracesoftware wrote:
Thu May 30, 2019 12:16 pm
redliner wrote:
Wed May 29, 2019 7:02 pm
maxracesoftware wrote:
Wed May 29, 2019 2:24 am




more Info for you to look at :
good correlations :
Thanks Max! It looks like ( as I knew) my bottom end lacks alot! What is your opinion ?
a typical NHRA SuperStock SS/J Class Car will accelerate to these ET/MPH times :
anywhere from 1.370 to 1.382 60 Feet ET's ....so you should expect to reach those numbers
with better Launch/Traction Hookup

Code: Select all

  Feet   ET    real MPH (*Time Slip MPH)
   60= 1.3820  46.1644 
  330= 4.1240  85.0472 
  594= 6.0103  104.3876 
  660= 6.4340  107.9873 (*106.1874)
  934= 8.0692  120.3856 
 1000= 8.4390  122.9538 (*121.6697)
 1254= 9.7986  131.5975 
 1320= 10.1380  133.5747 (*132.5861)

0  to 30 MPH  ET= 0.6392 at 18.0 Ft
0  to 60 MPH  ET= 2.2084 at 124.6 Ft
0  to 80 MPH  ET= 3.6957 at 278.1 Ft
0 to 100 MPH  ET= 5.5234 at 521.0 Ft
0 to 120 MPH  ET= 8.0147 at 924.4 Ft
0 to 140 MPH  ET= 11.3289 at 1559.0 Ft

 Ft    ET      MPH     GForce
-1  -0.1935   0.0000   0.0000
0   0.0000   7.0462   1.6598
your acceleration rate starts to match the SS/J Car's around 660 FT upwards
and your HP output is similar ,
however, your HP output after 1000 FT starts to fall-off as compared to a SS/J car
so i'd look for the cause of this .

you should be around 132+ MPH at 1320 FT ET Slip MPH,
and not just 131's
THANKS! I see yer point! I am just sorting this combo and have only worked my way up to 35 degrees of timing which retards to 34 degrees. I will try bumping the timing up to 36/35 and see what happens, yer thoughts?

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