Members 1/4 times from Willowbank

[Sylox]

My times from last night NOT HAPPY JAN

Au2 xr8 ute (200kw spec)
dual 2 1/4 exhaust (stock cats) pacemaker comp extractors
Bmc / herrods intake pipe / CAI
3.9 diff gears
Custom chiptorque tune

Much to my dis-taste my pb so far is. (was a hot night but still used: )

15.092 @ 149.4kph with a 2.333 60ft


Those in the know check the sheets out, the video thats coming and see what ya reckon the problem is used:

[Racecraft]

thats very odd Sylox, I would of thought mid 14's maybe even less with the 3.9's... Last night was crisp but the track temp would of been high due to the blazing sun we had yesterday.. Can you scan a slip?

Problem seem to lie in the not so flash 60ft time, mucho wheel spin?

[Sylox]

No wheel spin :( I'm soooo not happy jan


Yeah i'll scan the 3 of them on one page and put them up

[Sylox]

here are the 3 time slips from last night.
Grunter also has a video that i will put up as soon as I get it.

See what you guys can put the crap times down to used:


VEH NO: 283 = AUV8Ghia
VEH NO: 284 = Sylox
VEH NO: 285 = Au2xlsV8

[AUIIIXR8]

Track temp of 28-29 degrees wouldn't help much.

My first on track based official Holden Kill: car NO.306 VP Club Sport. YAY!!!

[rodderz]

When you've been to the track even just a few times you quickly realise that the start is everything....you could be up against something you would think would beat you easy, but get the good launch and your runs well on way to a good one.

I remember someone saying taking 1/10th of a second off your 60' time roughly takes 3/10th's off your ET. You may have dramas with the 3.9's taking off with wheelspin, you will have to produce yards of smoke to get grip into the tyres, not good for them but it works!

[Sylox]

Originally Posted by rodderz

When you've been to the track even just a few times you quickly realise that the start is everything....you could be up against something you would think would beat you easy, but get the good launch and your runs well on way to a good one.

I remember someone saying taking 1/10th of a second off your 60' time roughly takes 3/10th's off your ET. You may have dramas with the 3.9's taking off with wheelspin, you will have to produce yards of smoke to get grip into the tyres, not good for them but it works!

Thats the thing though, I'm not having any traction issues at all no wheel spin used:

[Sox]

Originally Posted by Sylox

Thats the thing though, I'm not having any traction issues at all no wheel spin used:

It's not just the launch which is out of whack anyway, the terminal speed is lower than it should be too.

Have you had it on a dyno, as it seems way down on power?

Rick.

[Sylox]

Yep its been dyno'd twice

1st at Romano's early in the year and made 160.1rwkw nice cool day

Then at Chiptorque a couple of months back it made
147rwkw on the base run
and
159.2rwkw after chip

At chiptorque it was 35degrees in the dyno room And lachlan said it was pinging when he started it up probally due to crap fuel he said...

But 2 different places at 2 different times of the year to there was no point comparing them...

[AUIIIXR8]

Hmmm. I'm going to concentrate on this topic in this forum only ;)

I've always suspected that Romano's was a rich dyno.

Get it checked on the dyno again. Take the factory inlet tube and compare with the Herrod pipe while your at it. I still think track temp is a major player.

And as I said the 3.9 diff will work much better when you look at a better cam with a higher power range. Your getting into power earlier but your also getting out of the power band quicker too. in this case i would say much too quick. Make the engine work the rpm better and it'll go much better.

[Sylox]

Put the factory inlet pipe back on and made no difference. But I'll leave it off for now just cause i am to lazy to put it back on :p

I'm noticing it more now that the problem has been shown in the time slips.

Some times even when only at 3/4 throtle it seems to accelerate heaps harder than when its at wot. used:

Power doesnt really feel like its there under 2800rpm not a flat spot but just doesnt pull hard. But after that it pulls very very hard up till 6000rpm

On the dyno sheet it shows that its running at 12:5 fuel give or take a bit here and there but its a smooth line all the same.


Chiptorque doesnt re-open till the 4th so I'll have to wait till then to call Lachlan and organize another dyno run

[Stav]

My Ford has seen the same behaviour in the past. At 3/4 throttle it feels punchier than at wot. I think that getting the chip checked will see an improvement.

[VooDoo]

You didnt come say hello Sylox.

If you ran on the right lane then it was a waste of time last night. Slippy as hell and cars were heading for the wall much to often. The left lane was totally differnt. I scored a new PB in the Lux-0-Barge with a 13.14 @ 104.7mph so i was very happy. I spoke to a few Ford boys out there (the Blue XR6T with the huge FMIC) and the Blue stock BA XR8 ran me unfortunately on the run i got the PB but cam up afterwards and congratulated me.

Great to see the Ford and Holden boys playing nice together. Hopefully your not shy next Wed (5th) as im hitting it hard and hoping for a 12

[Sylox]

Lmao forgot completely used:


Na my best time for the night was run in the left lane and it still suckedused:


here is a link to the videos of 2 of my runs as well
15.194 @ 142.79kph
http://www.grunter.com.au/video/utez.mpg

15.092 @ 149..94kph
http://www.grunter.com.au/video/ute2.mpg


Right click, save target as

[outback_ute]

Originally Posted by Sylox

Thats the thing though, I'm not having any traction issues at all no wheel spin used:

If there was no wheelspin you weren't launching it hard enough then!!! :p

Seriously though did you get wheel spin on any of the runs? If you don't cross the line how do you know where it is? How many runs did you get too?

Before the video gets here can you give a run through of the procedure for your run? Ie, 2nd gear burnout (maybe 3rd with 3.9s :p ) what launch, what revs over the line?

[Sylox]

Originally Posted by outback_ute

If there was no wheelspin you weren't launching it hard enough then!!!

Seriously though did you get wheel spin on any of the runs? If you don't cross the line how do you know where it is? Cant get wheelspin unless I stand on the brake and tromp it. and can only stall it up to 1800rpm
How many runs did you get too? between 5:30 - 10:15 a whole 3

Before the video gets here can you give a run through of the procedure for your run? Ie, 2nd gear burnout (maybe 3rd with 3.9s ) what launch, what revs over the line? Its an auto

And the vids up there

[outback_ute]

Cheers that might give people who know about drag racing something to go on! lol

3 runs is not many, it takes a few to get in the groove and get the best out of it. Not much you can necessarily do about that though on a busy night.

Have you got a shift kit or anything in the auto to sharpen it up a bit? If it matters you might look at a stallie. Not that it will necessarily help yet but the big rims won't help your launch.

I can only see one solution - keep going back ;) Especially once it gets a bit cooler. Good luck, the 14 is definitely waiting!

[Sylox]

Originally Posted by outback_ute

Cheers that might give people who know about drag racing something to go on! lol

3 runs is not many, it takes a few to get in the groove and get the best out of it. Not much you can necessarily do about that though on a busy night.
that was 100% the best it had on the night

Have you got a shift kit or anything in the auto to sharpen it up a bit? If it matters you might look at a stallie. Not that it will necessarily help yet but the big rims won't help your launch. The shift points have been firmed up a little by chiptorque. But no stall convertor at this stage as it would be pointless having to do it again after cams etc get done.

I can only see one solution - keep going back ;) Especially once it gets a bit cooler. Good luck, the 14 is definitely waiting!

They should be already there with out an issue with 3.9s

[AUIIIXR8]

Take the chip out and drive it for a day and then re install it! See if there's a difference.
Reset the ECU get the high voltage code cleared now you have your standard inlet pipe back. Take it to chip torque for a test and lets go again! I'll get a spacer for my manifold and we'll try to pick a cool night.

[Noddy]

Originally Posted by AU2XLSV8

Take the chip out and drive it for a day and then re install it! See if there's a difference.
Reset the ECU get the high voltage code cleared now you have your standard inlet pipe back. Take it to chip torque for a test and lets go again! I'll get a spacer for my manifold and we'll try to pick a cool night.

Au2xlsv8, with your list of mods it doesn't mention an ecu chip of any sort. Are you not using anything???

[Sylox]

Just dug up my time slips from may 04 since then I have done the 3.9's and chip. But yet the best 60ft time from may was
-------------------------------------------------
MAY 04 BEST RUN WITHOUT 3.9'S OR CHIP.
15.259 @92.46MPH
60FT of 2.348
330ft of 6.564
660ft of 9.935 @73mph
19deg / 35%H / 1023mb / 257RA /TT 26deg
Stalled to approx 1400rpm No wheel spin on launch
-----------------------------------------------------
DEC 04 BEST RUN WITH 3.9'S AND CHIP
15.092@93.17MPH
60ft of 2.333
330ft of 6.494
660ft of 9.829 @72mph
20deg / 72%H / 1014mb /1104RA / TT 27deg.
Stalled to approx 1400rpm No wheel spin on launch
----------------------------------------------

I can honestly say I felt F-All difference after having the 3.9's fitted except for earlier gear changes, tailshaft problems etc. There was no Holy crap increase in acceleration.:(

Whats everyones thoughts now. The chip looks like it has taken a minimal 2 10ths off but the 3.9s have left the 60ft basicly the same. It should of given it a huge wake up i would of thought used:
Where should I direct my attention to fix this problem in my ute that clearly seems to be there???

[Sylox]

Originally Posted by Noddy

Au2xlsv8, with your list of mods it doesn't mention an ecu chip of any sort. Are you not using anything???

Tom's running a Chiptorque Custom J3 the same as i am Matt...

[SpoolMan]

Sylox there is alot of time to be made up in those 60 footer's..like John says launch harder..Practice the launch, give it heaps and ride the clutch out..if you can get it down to say 2.2 that would be good enough for 14.80 on 93mph..

[Casper]

Originally Posted by XRFPV8

Sylox there is alot of time to be made up in those 60 footer's..like John says launch harder..Practice the launch, give it heaps and ride the clutch out..if you can get it down to say 2.2 that would be good enough for 14.80 on 93mph..

Its an auto Mark.

[sbutler]

Originally Posted by Sylox

My times from last night NOT HAPPY JAN

Au2 xr8 ute (200kw spec)
dual 2 1/4 exhaust (stock cats) pacemaker comp extractors
Bmc / herrods intake pipe / CAI
3.9 diff gears
Custom chiptorque tune

Much to my dis-taste my pb so far is. (was a hot night but still used: )

15.092 @ 149.4kph with a 2.333 60ft


Those in the know check the sheets out, the video thats coming and see what ya reckon the problem is used:

Dont think im a know all, but you say theres nothing under 2500rpm, its your extractors, they are to big, and the 3.9 diff might not be helping..

[Sylox]

Yep and loss of traction isn't and issue at all. I can stall it at 1750rpm (50rpm before wheelspin occurs) and then jump off the brake and nail the gas and not even get a chirp...

[Sylox]

Extractors have been a thought but have been holding back on them as thats a $600 guess at fixing the problem.
Anyone had Pacey comps on a a 5L xr8 and had the same prob ???

When i was at chiptorque i did ask if all the sensors were ok and was told yeah no problems there as well.

[SpoolMan]

Originally Posted by Casper

Its an auto Mark.

Thanks Shane, i am going to hide now...
does need somthing done down low then..

[sbutler]

Originally Posted by Sylox

Extractors have been a thought but have been holding back on them as thats a $600 guess at fixing the problem.
Anyone had Pacey comps on a a 5L xr8 and had the same prob ???

When i was at chiptorque i did ask if all the sensors were ok and was told yeah no problems there as well.

Firefox had them on his T3 and they didn't work on it ether, he dumped them and put Hurricains on and picked up the bottem end, he couldn't beleive it was the same car.., His car runs 13.6 all day no worries at all...... ;)

[Sylox]

Do you know what the hurricain's are worth ??? no info on the web site...

Au2xlsV8 or Au v8ghia did your pacemaker comps make any difference on launch when you had them fitted before the cam.
and still open to any other ideas people may have....