1/4 mile time
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Discussion

the muppet

Original Poster:

669 posts

214 months

Monday 25th August 2008
quotequote all
Went to York Raceway today with jimb0. My aim was to run either 13 seconds or 100mph, managed to bag both!!

Not quite Top Fuel, but for a standard 5.7 vxr I was well chuffed!!!



The other car was a Subaru WR1. If I hadn't had a picnic while waiting for the lights I'd have beaten himbanghead

racebreed

216 posts

211 months

Monday 25th August 2008
quotequote all
the muppet said:
Went to York Raceway today with jimb0. My aim was to run either 13 seconds or 100mph, managed to bag both!!

Not quite Top Fuel, but for a standard 5.7 vxr I was well chuffed!!!



The other car was a Subaru WR1. If I hadn't had a picnic while waiting for the lights I'd have beaten himbanghead


seems a good time but goes to show these are heavy beasts

my 200sx with 260bhp managed a 13.1 and my mates with 290bhp a 12.9 again not top fuel but was happy. The Monaro must be hard to launch as its easily loads faster than my 200sx in a straight line

the muppet

Original Poster:

669 posts

214 months

Monday 25th August 2008
quotequote all
Yep, there's an optimun point between loads of wheelspin and bogging the engine. I need to find it lol.

Most of my runs today were low 14's at about 100, managed 13.9 at 102 as well.

stevieturbo

17,961 posts

270 months

Monday 25th August 2008
quotequote all
There is clearly a serious error on the Subarus timing slip.

Either that, or it took forever to cover the first 60feet....then took off like a bullet, only to slow down again lol


Congrats on the 13/100+ though, very good for a standard car !!!

-Z-

7,937 posts

229 months

Monday 25th August 2008
quotequote all
Is that reaction time taken into account in the 1/4 mile time? So you could easily improve to the Subaru's level if it is?

wolfracer

2,074 posts

229 months

Monday 25th August 2008
quotequote all
-Z- said:
Is that reaction time taken into account in the 1/4 mile time? So you could easily improve to the Subaru's level if it is?

I'm not an expert but don't think so.
The reaction is seperate to the timing from the point you cross the timing beam. I have seen guys take their time, letting the other car go and then have the track and audience to themselves.

the muppet

Original Poster:

669 posts

214 months

Tuesday 26th August 2008
quotequote all
stevieturbo said:
There is clearly a serious error on the Subarus timing slip.

Either that, or it took forever to cover the first 60feet....then took off like a bullet, only to slow down again lol


Congrats on the 13/100+ though, very good for a standard car !!!
It took me a while to figure the 60 ft time out. At York, the left lane recoreds the 60 foot time, the right lane records the 0-60mph time.

My best 0-60 was 5.62 seconds!clap

racebreed

216 posts

211 months

Tuesday 26th August 2008
quotequote all
wolfracer said:
-Z- said:
Is that reaction time taken into account in the 1/4 mile time? So you could easily improve to the Subaru's level if it is?

I'm not an expert but don't think so.
The reaction is seperate to the timing from the point you cross the timing beam. I have seen guys take their time, letting the other car go and then have the track and audience to themselves.



the time doesnt start until you break the beams i used to wait a second so as not to get caught up in the lights. it does mean the other car crosses before you sometimes but your time reflects your faster.

Bonnie and Clyde

11,701 posts

215 months

Tuesday 26th August 2008
quotequote all
the muppet said:
Went to York Raceway today with jimb0. My aim was to run either 13 seconds or 100mph, managed to bag both!!

Not quite Top Fuel, but for a standard 5.7 vxr I was well chuffed!!!



The other car was a Subaru WR1. If I hadn't had a picnic while waiting for the lights I'd have beaten himbanghead


Proberbly would. Your reaction time was'nt great. Last time i did the 1/4 i got a .08 Just luck i'm sure but all the same damn good. Great time thoughthumbup

Bonnie and Clyde

11,701 posts

215 months

Tuesday 26th August 2008
quotequote all
Sorry posted my reply before i read the rest of the posts. Did'nt realise reaction time did'nt count.

stevieturbo

17,961 posts

270 months

Tuesday 26th August 2008
quotequote all
the muppet said:
stevieturbo said:
There is clearly a serious error on the Subarus timing slip.

Either that, or it took forever to cover the first 60feet....then took off like a bullet, only to slow down again lol


Congrats on the 13/100+ though, very good for a standard car !!!
It took me a while to figure the 60 ft time out. At York, the left lane recoreds the 60 foot time, the right lane records the 0-60mph time.

My best 0-60 was 5.62 seconds!clap
Timing does not start until the beam is broken, so reaction time is irrelevant.

Unless York has some amazing timing gear....it is impossible to determine 0-60mph using fixed beams as drag strips do.


jimb0

318 posts

252 months

Tuesday 26th August 2008
quotequote all
Ah, but this is the timing slip that really counts - CV8 vs. VXR



Achieved my best ever ET yesterday too - well chuffed


ringram

14,701 posts

271 months

Tuesday 26th August 2008
quotequote all
In car timing devices can be pretty accurate as well. There are some good ones around. I just have a cheapo G-Tech, but not bad for performance testing on "private roads" smile

Does 0-60, gforce, 1/4 mile, trap speeds, ET etc. Usually only a hundred squid or so. I think the Gtech is supposed to be accurate to 0.2sec or something. The newer ones can even do BHP if you put in the weight and it can read RPM's from your car.


the muppet

Original Poster:

669 posts

214 months

Tuesday 26th August 2008
quotequote all
Jimb0 has highlighted a fact I 'forgot' to mention.....

His CV8 well and truly dusted my VXR. Respect is due bow !

Bonnie and Clyde

11,701 posts

215 months

Wednesday 27th August 2008
quotequote all
ringram said:
In car timing devices can be pretty accurate as well. There are some good ones around. I just have a cheapo G-Tech, but not bad for performance testing on "private roads"

Does 0-60, gforce, 1/4 mile, trap speeds, ET etc. Usually only a hundred squid or so. I think the Gtech is supposed to be accurate to 0.2sec or something. The newer ones can even do BHP if you put in the weight and it can read RPM's from your car.

I was watching 5th gear the other day and noticed the woman using a race logic system to determined 0-60 30-70 and so on. Are they the main one to use and if yes are they expensive?

tiler

693 posts

259 months

Wednesday 27th August 2008
quotequote all
Bonnie and Clyde said:
ringram said:
In car timing devices can be pretty accurate as well. There are some good ones around. I just have a cheapo G-Tech, but not bad for performance testing on "private roads"

Does 0-60, gforce, 1/4 mile, trap speeds, ET etc. Usually only a hundred squid or so. I think the Gtech is supposed to be accurate to 0.2sec or something. The newer ones can even do BHP if you put in the weight and it can read RPM's from your car.

I was watching 5th gear the other day and noticed the woman using a race logic system to determined 0-60 30-70 and so on. Are they the main one to use and if yes are they expensive?



Have a chat with wortec they got me mine. I have the racelogic performance box.
Witch is gps based data logger. Its accurate to + or - 0.1 km/h. Or have a look at www.performancebox.co.uk

hammo19

7,098 posts

219 months

Wednesday 27th August 2008
quotequote all
My GTS-R did a 13.17 at Shoreham and made 107mph - Is that good??

ringram

14,701 posts

271 months

Wednesday 27th August 2008
quotequote all
hammo19 said:
My GTS-R did a 13.17 at Shoreham and made 107mph - Is that good??
Yes pretty good mate. I did 107 at 13.2 in my old GTS, are you supercharged?