1/4 mile cherry....
1/4 mile cherry....
Author
Discussion

jimb0

Original Poster:

318 posts

252 months

Sunday 23rd September 2007
quotequote all
....popped.

Took the Monaro to York Raceway today and had my first ever go on a dragstrip. I absolutely loved it even though I got there late and only mananged two runs. I'm looking forward to going back already. If you haven't done it yet, you should.

anonymous-user

77 months

Sunday 23rd September 2007
quotequote all
...and the results were?

stigmundfreud

22,454 posts

233 months

Sunday 23rd September 2007
quotequote all
beaten by a 305, well I was :blush:

jimb0

Original Poster:

318 posts

252 months

Sunday 23rd September 2007
quotequote all
wormus said:
...and the results were?


I'm pleased you asked

14.7 first run with traction control on (forgot to turn it off - doh!)
14.4 second run with some wheelspin

If I can get it in the 13s next time it'll make my day.



Edited by jimb0 on Monday 24th September 10:23

broadslide

739 posts

223 months

Monday 24th September 2007
quotequote all
Something I've always fancied doing. What spec Monaro have you?

jimb0

Original Poster:

318 posts

252 months

Monday 24th September 2007
quotequote all
broadslide said:
What spec Monaro have you?


Nowt special. 2004 CV8 with headers, catback, ripshift, 2nd hole mod and a Wortec tune.

LathamJohnP

4,477 posts

307 months

Monday 24th September 2007
quotequote all
jimb0, does the "Reaction time" suggest it you took you 1.5 seconds to work out the lights had changed, or am I misinterpreting that? wink

John

jimb0

Original Poster:

318 posts

252 months

Monday 24th September 2007
quotequote all
You're not wrong . But only 0.5 behind the others.

stigmundfreud

22,454 posts

233 months

Monday 24th September 2007
quotequote all
soon as you stage you dump that clutch wink

ringram

14,701 posts

271 months

Monday 24th September 2007
quotequote all
ET doesn't depend on reaction time.
With 2.4 sec 60 ft you should be able to get into the 13's... if you can get a 2 sec 60ft. (leave with enough rev's)
I think Duncan did a 14 sec flat, pretty much same mods as you IIRC.
Roger went 12.7 with his turbo ute. Best Ive done so far is a 13.2, hopefully I can chase down a high 12 next time if I drive more violently smile
Try dropping your tyre pressure to around 18psi for the run, it helps. Wind it out to near the redline too. 6200rpm but keep away from the fuel cut out it will kill your time.

AM04ARO

3,646 posts

238 months

Monday 24th September 2007
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Impressive.

Just think another 12 seconds and another 2/4 mile covered reaching 150mph.

well_fans

4,193 posts

247 months

Tuesday 25th September 2007
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Crail in Fife this weekend - Sunday 30th in fact there's a 1/4mile day on and Total Vauxhall are intending covering it in the magazine as most of the owners' clubs are attending and taking part. Should be a good day out and the best fish and chip shop in the country only a couple of miles up the coast in Anstruther - they even have their own boat to supply them! 8 quid to get in and 15 quid to use the 1/4 mile as often as you want. Also a drift arena to have a play on if you want to burn up some tyres :-)

jimb0

Original Poster:

318 posts

252 months

Tuesday 25th September 2007
quotequote all
ringram said:

Try dropping your tyre pressure to around 18psi for the run, it helps.


Thanks. Might try that next time.

monkfish1

12,206 posts

247 months

Wednesday 26th September 2007
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Definitly some time to be taken out of the 60ft. 2 sec is do-able in a CV8. VXR should be better still as it is lower geared, which have you got?

My gearing is the same as CV8, my best 60ft is 1.9, which also netted my best time to date.

It is quite hard to get consistently low 60ft times in these cars though.

jimb0

Original Poster:

318 posts

252 months

Wednesday 26th September 2007
quotequote all
monkfish1 said:

My gearing is the same as CV8, my best 60ft is 1.9, which also netted my best time to date.


It's a CV8 I've got. That sounds like a pretty good 60ft! How do you launch it?

monkfish1

12,206 posts

247 months

Wednesday 26th September 2007
quotequote all
Hard!

Drop the tyre pressures a bit first. Its finding the balance between too little revs so that the engine bogs down, too much revs so that the clutch slips and trying not to get too much axle tramp. TBH, axle tramp was my biggest issue. Dropping tyre pressures helped. As i have adjustable dampers, i wound them up a bit, though i should have tried winding the fronts down a bit to to aid weight transfer.

After that, it is just practice. You will know instantly when you have got it right!

The only other thing is making sure your diff locks up properly. Despite doing everyone elses, i managed not to sort mine out, so lock up was a bit hit and miss. Im confident, had it been spot on i could have taken a little bit more off my time.

Get out there and practice. We keep clutches in stock!!!!!!!!

jimb0

Original Poster:

318 posts

252 months

Wednesday 26th September 2007
quotequote all
monkfish1 said:
We keep clutches in stock!!!!!!!!


laugh Losing the clutch is my biggest worry. LS7 clutch any better than stock?

monkfish1

12,206 posts

247 months

Wednesday 26th September 2007
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Yes! Will take rather more abuse before letting go. Tis what i have in the ute at the moment.

crisisjez

9,209 posts

228 months

Wednesday 26th September 2007
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10/10 for the ls7 clutch IMHO

ringram

14,701 posts

271 months

Wednesday 26th September 2007
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Yeah I think there are a few of us with the LS7 clutch now.