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? :rofl:

[wretched73]

http://weknowmemes.com/generator/uploads/generated/g1385038200613264048.jpgAre your floor mats stuck under the pedal? :rofl:

[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]

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]

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]

http://a66.tinypic.com/20qbb5s.jpg

Car is still slow but it 60s' good.

[sweetbmxrider]

Be faster with a radial :twisted:

But won't look as gangster :evil:

[Blackbirdws6]

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

[MDSheds_SS]

Be faster with a radial :twisted:

But won't look as gangster :evil:

Those are MT radial pros

[sweetbmxrider]

https://media.tenor.com/images/667b75b1b91874e5e008e07adbcaaa77/tenor.gif

[6spdg37s]

Be faster with a radial :twisted:

But won't look as gangster :evil:

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?

[MDSheds_SS]

3500 with me in it.

[sweetbmxrider]

what tire did you think it is? a slick ?

bias ply/cheater slick

[MDSheds_SS]

bias ply/cheater slick

You can't run bias ply tires on a street car bro.... #streetcarbro

[sweetbmxrider]

You can't run bias ply tires on a street car bro.... #streetcarbro

But they did it before radials existed? :rofl:

[6spdg37s]

bias ply/cheater slick

thats what i assumed lol

[MDSheds_SS]

Car was a little more consistent today...
started the day with a 11.19
Had a multiple runs best being 11.0
Tuner made a few adjustments to things but the trans temp was real high and we were pressed for time, so no time to cool the trans down. also the air temp went up. Finished the day at 11.12
60' best of 1.44 and worst of 1.47.
November can't get here soon enough!!

[Blackbirdws6]

Congrats on the new best. The rental will surely get you that golden slip.

[6spdg37s]

Car was a little more consistent today...
started the day with a 11.19
Had a multiple runs best being 11.0
Tuner made a few adjustments to things but the trans temp was real high and we were pressed for time, so no time to cool the trans down. also the air temp went up. Finished the day at 11.12
60' best of 1.44 and worst of 1.47.
November can't get here soon enough!!

bro if i had a 1.44 60' i would be like an 11.0 :rofl: i could only hope to cut a 1.40

[LS1ow]

Since you got such a nice 60’ your gunna let me leave first at the rental right ?

[MDSheds_SS]

Ill let you stage with the rear tires and give you the break lol

[LS1ow]

Ill let you stage with the rear tires and give you the break lol

If my car performs how it should that should actually be a very close race.

[LTb1ow]

I'll race you beggz

[MDSheds_SS]

http://a65.tinypic.com/etthj4.jpg

New Etown best... 11.10 @119 previous was 11.16
Think it's time to air up the tires and move the rear back some.

[3.4 grape of wrath]

Congrats! Move the front tire forward and you can be in the 10's.:kneeslap:

[Anti_Rice_Guy]

http://a65.tinypic.com/etthj4.jpg

New Etown best... 11.10 @119 previous was 11.16
Think it's time to air up the tires and move the rear back some.

But was it consistent? :lol:

[MDSheds_SS]

Only got to make 1 run Sunday. Trying to make the rental so I can see how consistent it is.

[nj02z]

Talked to you Sunday, if you really want consistency you want OLSD tune.That way there is nothing screwing with your fueling.

[6spdg37s]

my tune is speed density i like it . assume that it is closed loop becuase i had an 02 go bad and make the car start misfiring.

[MDSheds_SS]

I'm switching to SD after I get that 10sec slip. Either on Monday or Friday of next week.

[6spdg37s]

I'm switching to SD after I get that 10sec slip. Either on Monday or Friday of next week.

nice nice bro ! im jealous i cant go either of those days ! i hope u break into 10s
its right there

[nj02z]

my tune is speed density i like it . assume that it is closed loop becuase i had an 02 go bad and make the car start misfiring.
You are always in open loop at wot.

[SRGN]

Log it and watch knock retard. If anything is hitting under the car, PCM is gonna yank timing.

[LS1ow]

Seem pretty consistent @ 10.95-98 all day :mrgreen:

[Blackbirdws6]

Yea I don't know what you are complaining about.... :)

[Jersey Mike]

Dude literally ran 10.99, 10.98, 10.97, 10.97, 10.93, 10.92

I don't know what more you want. Pick up some heads and remake this thread again in the spring

[WildBillyT]

Dude literally ran 10.99, 10.98, 10.97, 10.97, 10.93, 10.92

I don't know what more you want. Pick up some heads and remake this thread again in the spring

That's awesome 8-)

[LS1ow]

Dude literally ran 10.99, 10.98, 10.97, 10.97, 10.93, 10.92

I don't know what more you want. Pick up some heads and remake this thread again in the spring

Pick up some heads? My mans got milled trick flows on the joint

[BonzoHansen]

That's awesome 8-)

i'm not that consistent walking down the stairs lol

[MDSheds_SS]

Very happy with what the car has done, and has been very consistent lately. Cold weather and trailering the car to the track I think plays a big part.