Members 1/4 times from Willowbank

Sylox · 30-12-2004, 02:29 PM

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 · 30-12-2004, 02:35 PM

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 · 30-12-2004, 02:45 PM

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 · 30-12-2004, 03:28 PM

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 · 30-12-2004, 03:40 PM

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 · 30-12-2004, 04:43 PM

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!

AUIIIXR8 · 01-01-2005, 01:38 PM

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 · 01-01-2005, 11:05 PM

Quote:

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 · 01-01-2005, 11:08 PM

Quote:

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...

Sylox · 01-01-2005, 11:07 PM

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???

Sox · 02-01-2005, 01:25 PM

Quote:

Originally Posted by Sylox

<snip>
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???

As you say, the 0.2 sec is most likely due to the chip, as the 3.9 gears appear to have done nothing at all. This is clearly evident by the lack of improvement in 60' times. MPH is slightly up, again because of the chip.

Something is very wrong with the low end power of your setup, and I'm not confident that it's the extractors. Whilst good headers will improve low down power, the 3.9 gears should have improved 60' times. Something else is wrong here, though I don't know what as yet.

3.9 gears should provide easy wheelspin from a standing start, and you also said you have no traction problems

Have you any more details and history of the car?

Rick.

Racecraft · 02-01-2005, 01:55 PM

Quote:

Originally Posted by Sox

As you say, the 0.2 sec is most likely due to the chip, as the 3.9 gears appear to have done nothing at all. This is clearly evident by the lack of improvement in 60' times. MPH is slightly up, again because of the chip.

Something is very wrong with the low end power of your setup, and I'm not confident that it's the extractors. Whilst good headers will improve low down power, the 3.9 gears should have improved 60' times. Something else is wrong here, though I don't know what as yet.

3.9 gears should provide easy wheelspin from a standing start, and you also said you have no traction problems

Have you any more details and history of the car?

Rick.

A quick question but would the dyno runs not have picked up the lack of torque, like a kick in the curve or something? To have 159kw on tap and tuned properly (as I imagine the chip is spot on) surely it would be quite a bullet?

Sox · 02-01-2005, 02:08 PM

Quote:

Originally Posted by Racecraft

A quick question but would the dyno runs not have picked up the lack of torque, like a kick in the curve or something? To have 159kw on tap and tuned properly (as I imagine the chip is spot on) surely it would be quite a bullet?

Agreed, and yes I do believe that a dyno run may have missed something, as most runs are started at 2000rpm and above.
The problems appear to be below 2000-2500rpm.

What's needed is an off idle or at least from say 1200rpm dyno run, with mixtures.

Rick.

Sylox · 02-01-2005, 10:05 PM

Quote:

Originally Posted by Sox

As you say, the 0.2 sec is most likely due to the chip, as the 3.9 gears appear to have done nothing at all. This is clearly evident by the lack of improvement in 60' times. MPH is slightly up, again because of the chip.

Something is very wrong with the low end power of your setup, and I'm not confident that it's the extractors. Whilst good headers will improve low down power, the 3.9 gears should have improved 60' times. Something else is wrong here, though I don't know what as yet.

3.9 gears should provide easy wheelspin from a standing start, and you also said you have no traction problems

Have you any more details and history of the car?

Rick.

Previous owner was a guy in his late 40's. Full log books and was stock as a rock when i got it. You after anything in particular???

Sox · 02-01-2005, 10:23 PM

Quote:

Originally Posted by Sylox

Previous owner was a guy in his late 40's. Full log books and was stock as a rock when i got it. You after anything in particular???

Not really, just clues which may help determine what's going on.

Rick.

SpoolMan · 01-01-2005, 11:16 PM

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 · 01-01-2005, 11:17 PM

Quote:

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.

SpoolMan · 01-01-2005, 11:32 PM

Quote:

Originally Posted by Casper

Its an auto Mark.

Thanks Shane, i am going to hide now...

does need somthing done down low then..

sbutler · 01-01-2005, 11:20 PM

Quote:

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 · 01-01-2005, 11:21 PM

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 · 01-01-2005, 11:28 PM

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.

sbutler · 01-01-2005, 11:36 PM

Quote:

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 · 01-01-2005, 11:40 PM

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....

sbutler · 01-01-2005, 11:45 PM

Quote:

Originally Posted by Sylox

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

and still open to any other ideas people may have....

there no cheaper than the others I would think $500 to $600 would be around the mark. We have had all types of extractors, [eg] d phillipo, pacemaker, herrod,HM and the hurricains beat all of them for KWs and torque...... ;)

Noddy · 02-01-2005, 12:34 AM

Sylox are the pacemaker comp extractors you have four into one or tri-y?? Firefox had pacey 4 into 1 on his t3, it is comon trait that these don't work on windsors, losing bottom end torque, even worse on a auto. I have a set of Hurricanes sitting on my workbench waiting to be fitted to my t3. Im eagar to see the results

Sylox · 02-01-2005, 10:01 AM

They are 4 into 1 thats what the comp series are.

I'm going to order a set of Hurricanes tri Y's on Tuesday and we'll see what happens then I guess.....

Noddy · 02-01-2005, 12:49 PM

Quote:

Originally Posted by Sylox

They are 4 into 1 thats what the comp series are.

I'm going to order a set of Hurricanes tri Y's on Tuesday and we'll see what happens then I guess.....

You WILL pickup torque with these pipes (tri-y), there are two size primaries, 1.5inch and 1.5/8ths, purchase the 1.5inch primary size. They are not as pretty to look at compared to the Pacemakers and the welding is not as well finished off in some places but they do have the runs on the board with 400m times and improved driveability reported from several FF members. ;)

I am thinking of having mine hpc coated, has anyone had their pipes done and are the benifits worth the cost?

UNR8D · 02-01-2005, 11:52 AM

keep us posted sylox id be interested to see the results.

i run a 15.301 @149kmh willowbank raceway last year in september so not the best for cold air as the track temp was 29degrees.

Racecraft · 02-01-2005, 12:17 PM

For comparison Ignition has Pacemaker Comps on his auto 165kw EL Ghia, even with the standard HO inlet, E7's, 3.45 LSD and nearly 200000k on the odo he was running 14.8's at Willow..
I am not doubting anyones experience at all, but going by Paul's sub 15's from his luxo barge with the Paccie Comps makes me think it might be something other than the 4:1 headers or even a combination of things that is the root of your problem...

Racecraft · 02-01-2005, 02:27 PM

hmm perplexing... as Sylox stated he launches at 1750rpm as the tyres will smoke at 1800rpm, it can't be that torque deprived... can it? A static burnout at 1800rpm is good, if the torque curve was that outta wack surely it would just bog down??

Just thinking aloud here