Inconsistent 1/4 times

[MDSheds_SS]

Anyone else have these issues. My MPH is all over the place as are my time slips. Weather and wind I'm sure my play a small factor.
Mph has been from 124 to 111
ET has been from 11.7 to 11.1
With the same 1.50/1.48 60'
Nothing has been adjusted in the tune and I haven't logged it yet. Going to do so next time at the track.
Same amount of tire pressure and same weight in the car every time. I'm sure logging will tell the tale of what's happening but has anyone else had issues like this? Feel as if this car should be much faster then it is.

[Blackbirdws6]

Those are some big swings. Is there any trend to the data (consistently slower overall or faster?)

[wretched73]

I wonder what that converter is doing

[MDSheds_SS]

We are also wondering about the converter.
The only trend is that it gets faster every run. My best run was after making 7 or 8 runs at a track rental. Since I've been driving the car to the track and not trailering it I've seen it start off running higher 11s.

[KirkEvil]

Are your floor mats stuck under the pedal?

[wretched73]

Originally Posted by KirkEvil

Are your floor mats stuck under the pedal?

[MDSheds_SS]

Bro.... we all know floor matts are part of the stage 1 weight reduction kit. Lol. ****, I even cut the carpet away from the petal to assure WOT
Tossing the floor mats and dropping the back seat down is good for a few tenths

[LS1ow]

I think your heads are the issue. Id be willing to swap my stock 243s to help you out.

[MDSheds_SS]

Originally Posted by LS1ow

I think your heads are the issue. Id be willing to swap my stock 243s to help you out.

Fastest pass so far is with my old 243s.

[LS1ow]

I see you said nothing was adjusted in the tune... does that mean you havent had it tuned since the trick flows went on ?

[MDSheds_SS]

It's was retuned after the new heads, but hasn't been logged or touched since. The inconsistency is what has me puzzled. Hoping once I get a chance to read what the car is actually doing I can take a step in the right direction.

[LS1ow]

Was going to say maybe the tire is spinning on the rim, but your 60s are the same.

Is it shifting into high gear to early?

[sweetbmxrider]

Are you saying the car has consistently slowed down or its fast one pass, slow another? What changes have been made between the varying times?

[MDSheds_SS]

Zero changes between all of these runs. most on cooler nights, no warmer then 70 degrees. 60's are almost identical every time.
It's will go 11.45 11.3x 11.2 all in the same night. In that order.
Other times like last weds. Was 11.55 11.50 11.42. Faster every run but the starting points are all over the place. Waiting for it to go 11.2 11.1 10.99 but hasn't happened. Best pass with the new heads and most recent tune is 11.17

[6spdg37s]

definitely weird man

[KirkEvil]

Originally Posted by MDSheds_SS

Zero changes between all of these runs. most on cooler nights, no warmer then 70 degrees. 60's are almost identical every time.
It's will go 11.45 11.3x 11.2 all in the same night. In that order.
Other times like last weds. Was 11.55 11.50 11.42. Faster every run but the starting points are all over the place. Waiting for it to go 11.2 11.1 10.99 but hasn't happened. Best pass with the new heads and most recent tune is 11.17

Those numbers are not that inconsistent. Looks like the air is getting cooler as it gets later into the night so its making more power

[sweetbmxrider]

Probably a good idea to check the da on dragtimes.com but might attribute some to warming of fluids as well if its trailered.

[MDSheds_SS]

Car is still slow but it 60s' good.

[sweetbmxrider]

Be faster with a radial

But won't look as gangster

[Blackbirdws6]

Great pic! Is that a **** eating grin I see?

[MDSheds_SS]

Originally Posted by sweetbmxrider

Be faster with a radial

But won't look as gangster

Those are MT radial pros

[sweetbmxrider]

[6spdg37s]

Originally Posted by sweetbmxrider

Be faster with a radial

But won't look as gangster

what tire did you think it is? a slick ?

[jeff wilson]

Cars pulling timing, gotta get the the water temp consistent between runs. Its hard to do

[KirkEvil]

sweet pic! Whats your race weight?