Went To Wsid,not Happy!

[turb06]

well my best of 14.40 like in my sig is when my car had 195rwkw it now has 235rwkw so I am expecting to be into the 13's that's at willowbank which is a slower track than sydney.

Dazza.

[Dr Z]

I am puzzled why you would assume a tuner may be at fault for a slower than expected ET and lower than expected trap speed?

There are any number of variables that could account for this without implying any particular tuner has not adequately tuned your car. The slow 60' time is clearly a launch technique issue that once again may have a number of variables associated with it.

Why am I posting this? I would not want to see an important thread where you are working out how to better apply your power down the strip tangent off into a tuner witch hunt when there may be more plausible reasons offered by the strip gurus.

Safe and happy driving...Dr Z.

[geea]

The 60' will affect your ET. A bad 60' will give a slower time. The MPH is usually higher when you have a bad 60'. The temp shouldn't be too much of a factor, my best time was done with a 26C ambiant temp. The humidity will slow the car a little.

I'd be asking some questions of your tuner as 245rwkw's should be getting a lot more than 101mph. I'd think around 108-110mph would be what you should have. Your friend with 267rwkw's should be looking at around 111-114mph. This is assuming both are auto's. Manuals would have different expectations.

I know of an edit only car with around 245rwkw's that ran 12.9@110 I think. With a humid night you still should have run 13.5@105 as a worst case senerio.

Who tuned you and your mates cars? Let us know what the tuner has to say.

Geea.

[ford number 1]

Im not going to start a tuner bashing.I will be ringing them today and asking what they think.One of my mates took his skyline out and went 0.4 slower then his last time and he now has bigger cooler and its making more power so who knows..

[ducatijb]

Higher humidity has a bigger effect than high temperatures...still should have went quicker than 14's with your mods...be interesting what your tuner has to say

Did you do a decent burnout before your runs??

[DBOSS]

My last T with a custom tuned 245 rwklw ran a 12.9 @109 mph at 100% humidity at wsid but the 60ft was 2.0

Who did your tune?

CYA JEFF

[Turbo6man]

I'm a bit puzzled why high humidity would slow your times ??

From a purely scientific/physical point of view my own thoughts would be that high humidity equals wetter and therefore denser and cooler air than what you would have at the same temperature with zero humidity. Denser air and cooler air should contribute to more efficient power production in the cylinders.

I see your problem in the 60' times - an auto should be 2.0 secs as a max IMO.

I don't know about anyone else but I always seem to have a hard time launching at WSID. Not that I've done much drag racing, and nor have I done it on any other "official" strip, but I seem to be able to launch better almost anywhere on roads or tracks compared to WSID.

[jordak]

Im not going to start a tuner bashing.I will be ringing them today and asking what they think.One of my mates took his skyline out and went 0.4 slower then his last time and he now has bigger cooler and its making more power so who knows..

<{POST_SNAPBACK}>

If you don't want to name the Tuner perhaps you could post a dyno sheet. That might provide some info that the well versed on the forum can comment on such as average low - midrange power.

[turb06]

I'm a bit puzzled why high humidity would slow your times ??

From a purely scientific/physical point of view my own thoughts would be that high humidity equals wetter and therefore denser and cooler air than what you would have at the same temperature with zero humidity. Denser air and cooler air should contribute to more efficient power production in the cylinders.

<{POST_SNAPBACK}>

But wouldnt the air be denser with moisture and not oxygen, which is why it has a negative effect.

Dazza.

[C.S.I]

Just looking at my slips. I had 241rwkw (Edit only), over 5 runs, ran consistently low 13's, and a 1 off 12.98, with consistent 109 mph, with between 2.178 and 2.33 60' times. I reckon your 60' are probably close to the mark. I was stalling @ 2000 even.

Was only 15 - 18 degrees though, no idea what humidity, @ Calder Park

Let us know what the tuner says

Cheers, Alan