Well done Dave!
Not using meth any more? How do you deal with the injector ECM limits?
Alex
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I removed the meth tank for the new surge tank and twin 044 setup. IAT's were a bit killer though, good thing is the e85 helps out a bunch anyway.
Injector limit is not really an issue. i just deal with the available spark map available, which is roughly half of what i had before. beefed up the numbers for the torque model calculations and away i went.
I've got a tip to try out to get some resolution back, but im not in a hurry to test it out yet.
yep, $1500 wrecker special. :-)
didnt even drop the oil out of it when i put it in. just topped the converter up.
Well done Dave, just keeps getting better and better. Need a chute soon?
What size/type of injector do you run?
If you go sub 10 wont they boot you dave ?.
in the ecu there are tables for torque calculation that affect the reported torque figure to the tcm. as my vve numbers are now half of normal values i need to essentially double them up and them some to get a decent reported figure.
Surge tank holds a good 6-8litres and has 2 x 044 pumps that feed a single -8 line.
http://www.vyssute.com/downloads/VESS/VE-Surge.JPG
That's the plan. then i dont need to take the car back. :-)
Kudos! That's a brilliant effort. Out of interest, what sort of TCM reported shift times are you getting for the 1-2, 2-3 and 3-4 shifts.
I work off the logs and the time it takes from the tcm reporting its changed gear to the rpm actually dropping. Generally around the .9 second mark.
I also launch in 2nd gear. 1st gear would be pointless.
one of my runs that night had me wheelspin off the line and go straight into 3rd gear and it still ran 10.9 @ 136. That'll teach me for trying to start my burnout in 3rd gear with the stock lsd.
Again, well done. The 6L80E can be a very good thing when the effort is put in. Are you sure it's 0.9 sec, it sounds far quicker than that on the video, I would've thought more like 0.2 or better?
Yeah 0.2 would be how quick it is. the 0.9 is the time reported in my logs from the point it says it's gone from say 3rd to 4th and the actual rpm dropping. the transition as it were from each gear is very quick.
What's also interesting is the fact that even though im doing 1.5 - 60's it's doing this without full throttle, as it appears the ESP system is pulling the throttle back.
Example: 10.009 Log
http://www.vyssute.com/downloads/VES...10.009-log.JPG
Had a successful night at WAW with my daily
12.610 @111.66mph
1.995 60ft
Pretty happy with full stereo, no cam or converter, 20`s
Confident of maybe another 1/10th just in the shift points
Nice work, Gav.....
Less "dusty" track and some cool night air and that time will be better again..
Do you didnt gav ...!!!STOP HIDING!!!. hahaha
good job mate.
Gav's car is a VE SS Series 2... Auto
OTR.. Tune.. Exhaust... That's it.
Damn, that is plenty rapid for those mods.
Achilles ATR Sports. is what i put on it last time for him i think
I too am running the ATR SPORTS and have a 1.9 60 footer.. For a cheaper tyre, they grip up really well...
Dave (tre-cool) also ran them on his VE to a get a 10s pass - so they can't be too bad!
there are a surprisingly good tire for the price, they get real sticky on the dyno after a couple of pulls too.
my ve is retired from racing now, it's going back to stock to be sold. got 2 dedicated drag cars to finish off.
I have them on my ute and reckon they are great for the money.
Rick Crawford, a tuner in the states who does a lot of work on G8s went 10.59 NA last week. He is a big advocate of small cams and has done a lot of R&D on l92 heads. Think his current one is around 223/231.
https://www.google.com.au/url?sa=t&r...57155469,d.dGI
Dave, were you running the older ATR sports or the Sport 2?
Looking forward to a night with a bit cooler air too, would be magic to see the mph in the 112`s
Finally got my lazy ass to the test and tune today at Eastern Creek.
Ran a best of 12.763@113mph, pretty happy with the result since I haven't drag raced for nearly 10 years and its my first time racing a manual.
Car specs are;
Full weight 2008 VE SSV M6
VCM OTR, 214/225 cam, headers, cats and a 2.5 inch cat back with stock rear cans, 10% UDP, everything else stock including clutch.
Bridgestone Potenza 245/40/19 tyres.
Should also add the car has XA coilovers.
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!
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.
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