mine are the original ATR Sport.
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mine are the original ATR Sport.
I ran a bunch of 12.7s @ 181kmh at WAW a few days ago and was pretty happy with my gear shifts and consistent times. It was 22 deg with a 5kt breeze that night and my best is a 12.607 on a 24 deg night with a similarly shit 2.1 60fter.
2009 Ve ss manual Ute with the ssv 19s on it. 315rwkw last time it was on the dyno. It has king super low springs in the front and just lows in the rear with the matching Monroe shocks. The rear springs are NOT the load bearing heavy duty option.
My 60s were pretty much all 2.1s and I'm really struggling to find any extra speed in my launch. What 60ft times r achievable for my car at full weight 1770kg on Kumho ku39 tyres? Through reading in hear, 1.8 and 1.9s shouldnt be hard? I've done a few 2.0s but they r few and far between.
Thoughts and personal experience from guys running street tyres (standard 245s) on a Ve ss ute?
My A6 ute with approx 280rwkw has never done a sub 2 sec 60ft due to wheelspin. Admittedly in getting on for 5 years it's only been to the track (Heathcote) twice. First time pre cam with 260rwkw running on new Falken Azeni 245/18" (supposedly semi slicks) it did a best 60ft of 2.02 with a number of 2.02x/2.03x/2.04x 60ft and a worst of 2.18 in about 10 runs, though I suspect I may have "forgotten" a run or two. :D Best run of 12.83@111.6mph.
Next time was on half worn Bridgestone VE SS 18" tyres with small cam into a headwind with almost identical results (12.83 @ 111.?mph) then 2 runs with my road tyres (Kumho KU31 275/30/20) which gave me a 12.96 (I think) but at 114.?mph. 60 footers on the Bridgies were again 2.02/03 at best from memory and worse with the 20s obviously (don't remember what though). It was spinning tyres most/all the way through 1st, 2nd, 3rd and even on the change to 4th! :eek:
I've had some MT E/T Streets for about 6 months now so must get to Calder soon (apparently much grippier track) to try them - will hopefully then get a sub 2 sec 60!
Wonk have you ever dropped your pressures? To give you an idea. I picked up 4 tents at Temora when I dropped mine from 42 to 30Quote:
Originally Posted by Wonky
We were running around 20psi from memory.Quote:
Originally Posted by macca_779
Cheers for your thoughts Wonky. I have been running my rears at 28psi then dropping to 26psi with no great 60ft times thus far. Next time I will start at 30psi and see how i get along. My car is manual also which throws a huge amount into it in terms of getting it off the line. So easy to either bog it down or just light it up. It's hard to get that perfect medium.Quote:
Originally Posted by Wonky
On another note, if you are spinning your tyres through all the gears Im sure you would pick up oodles of time by not letting that happen. If I let mine bog down in 1st gear, it will not spin up other than a chirp into 2nd and my car has 315rwkw. Plenty of grip at the track however on the street, depending on the road quality, it will light them up at about 4000rpm in 1st.
Wonky perhaps you need Chevs to change the auto tune to prevent / lessen the wheel spin between ever change.
Dropped my PB again at the FAST Saturday meeting. My ATR sports are pretty much shagged now. Last run was in 20 degree heat.
12.57@111.11mph with a 1.960 60 foot time
Still unopened A6 L77, OTR and full exhaust, GTS diff. Full weight (stereo on board, spare, 3/4 tank) makes 280rwkw
Ok so first time out with new set up ve ss ute
Head and cam t400 4500 stall and 3.7 gears
Ran a best of 11.8@114
More in it with a 1.8 60ft
Just need to sort shifts out I think it's ruining my mph
Recently had the Alcohol table trimmed in my VE Flex Fuel. Running United E85.
Made similar rwhp as before (370rwhp) but gained a bit of torque in the mid range (2500-4500)
Ran another PB of 12.48@109mph
60ft 1.90
Still unopened L77 auto, full weight, cheap 275/30 R20s and 3.7s
Another PB. Added a Hi Stall from Allfast over the weekend. Made an awesome difference to the 60ft. Run was with 245/40 R18 Et Street Radials
http://i188.photobucket.com/albums/z...910_222347.jpg
Quote:
Originally Posted by hyperss82
Why would you put a three clunker into a fairly standard late model car?
Chucking a th400 (3 speed clunker) even in the most basic package can make it an animal.Quote:
Originally Posted by dyno junkie
I changed to a 3speed a few years ago in my VE, cam only 6ltr and ran 11.2's@123 which I thought was a pretty great bang for buck mod.
Still have a 3speed in it now with a 403ci GTX45 and have seen a best of 9.7 @ 149 with a lazy 1.75 60ft and weighing 1920kg.
So a converter and th400 can really get them moving.
Sometimes the older tougher stuff just cant be beaten.
There are several low to mid 10 second VE's still using the factory A6.
I do understand the need to change out gearboxes in high powered cars but not in 10-11 second street cars!
Haven't posted in this thread for a while.
Ran a pb a few months ago.
11.1 @ 126mph.
Since then my bog stock 6l80e has given up after 7 years & 9 months.
Ran this time with stock 6l80e, 3000 converter, stock 2.92 diff, stock shocks & ET's.
Car is making 456rwkw on e85, still need a touch better 60ft for a 10, but with a built trans I think it should do it.
http://i178.photobucket.com/albums/w...psdb996bca.jpg
Here it is, last run against the blue ute.
https://www.youtube.com/watch?v=nYSJ...layer_embedded