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09-05-2017, 07:50 AM
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#1
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11 sec club
Join Date: Aug 2014
Location: Woodbridge
Posts: 834
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Inconsistent 1/4 times
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.
__________________
99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
Last edited by MDSheds_SS; 09-05-2017 at 07:51 AM.
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09-05-2017, 08:25 AM
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#2
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,358
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Those are some big swings. Is there any trend to the data (consistently slower overall or faster?)
__________________
97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
17 Sierra 2500HD Dmax
81 Turbo TA
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09-05-2017, 08:38 AM
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#3
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Join Date: Nov 2007
Location: Jackson, NJ
Posts: 1,723
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I wonder what that converter is doing
__________________
1983 camaro- Scrap
1988 camaro- Also scrap
'05 Silverado- You guessed it, scrap
1988 TRX 250R- Ported w/ high compression on 110 octane- Out 60' your LT1
Jersey Shore Street Car Takeover (JSSCT) Founder
Quote:
Originally Posted by LS1ow
and once i get PHB, what do i ajust it too?
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Quote:
Originally Posted by Jersey Mike
Seven.
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09-05-2017, 08:49 AM
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#4
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11 sec club
Join Date: Aug 2014
Location: Woodbridge
Posts: 834
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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.
__________________
99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
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09-05-2017, 08:56 AM
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#5
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
Posts: 1,647
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Are your floor mats stuck under the pedal?
__________________
1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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09-05-2017, 09:07 AM
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#6
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Join Date: Nov 2007
Location: Jackson, NJ
Posts: 1,723
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![](http://weknowmemes.com/generator/uploads/generated/g1385038200613264048.jpg)
Quote:
Originally Posted by KirkEvil
Are your floor mats stuck under the pedal? ![ROFL](http://www.njfboa.org/forums/images/smilies/rofl.gif)
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__________________
1983 camaro- Scrap
1988 camaro- Also scrap
'05 Silverado- You guessed it, scrap
1988 TRX 250R- Ported w/ high compression on 110 octane- Out 60' your LT1
Jersey Shore Street Car Takeover (JSSCT) Founder
Quote:
Originally Posted by LS1ow
and once i get PHB, what do i ajust it too?
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Quote:
Originally Posted by Jersey Mike
Seven.
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09-05-2017, 09:21 AM
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#7
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11 sec club
Join Date: Aug 2014
Location: Woodbridge
Posts: 834
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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
__________________
99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
Last edited by MDSheds_SS; 09-05-2017 at 09:23 AM.
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09-05-2017, 10:32 AM
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#8
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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I think your heads are the issue. Id be willing to swap my stock 243s to help you out.
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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09-05-2017, 10:36 AM
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#9
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11 sec club
Join Date: Aug 2014
Location: Woodbridge
Posts: 834
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Quote:
Originally Posted by LS1ow
I think your heads are the issue. Id be willing to swap my stock 243s to help you out.
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Fastest pass so far is with my old 243s.
__________________
99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
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09-05-2017, 10:42 AM
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#10
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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I see you said nothing was adjusted in the tune... does that mean you havent had it tuned since the trick flows went on ?
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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09-05-2017, 11:00 AM
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#11
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11 sec club
Join Date: Aug 2014
Location: Woodbridge
Posts: 834
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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.
__________________
99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
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09-05-2017, 11:50 AM
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#12
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Power Member / trans break does not equal transbrake
Join Date: May 2009
Location: The Meadowlands
Posts: 4,513
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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?
__________________
99 Z28 - SBE LS1/60e
Motor - 10.84 @ 128 - 1.47 60'
Nitrous - 10.16 @ 132 - 1.40 60"
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09-05-2017, 04:32 PM
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#13
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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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?
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09-05-2017, 05:34 PM
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#14
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11 sec club
Join Date: Aug 2014
Location: Woodbridge
Posts: 834
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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
__________________
99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
Last edited by MDSheds_SS; 09-05-2017 at 05:53 PM.
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09-05-2017, 06:41 PM
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#15
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Join Date: Feb 2016
Posts: 692
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definitely weird man
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09-05-2017, 07:16 PM
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#16
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
Posts: 1,647
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Quote:
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
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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
__________________
1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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09-06-2017, 06:52 AM
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#17
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Probably a good idea to check the da on dragtimes.com but might attribute some to warming of fluids as well if its trailered.
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10-05-2017, 05:45 PM
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#18
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11 sec club
Join Date: Aug 2014
Location: Woodbridge
Posts: 834
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Car is still slow but it 60s' good.
__________________
99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
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10-06-2017, 07:52 AM
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#19
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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Be faster with a radial
But won't look as gangster
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10-06-2017, 07:58 AM
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#20
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Lord of the rings / 10 Second Club / Meet Coordinator
Join Date: Aug 2004
Location: Millstone Township, NJ
Posts: 6,358
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Great pic! Is that a **** eating grin I see?
__________________
97 T/A Ram Air Convt
Forever dyno queen / 777rwhp 662 rwtq @ 17lbs / 10.2 @ 140
'24 Corvette Z06
17 Sierra 2500HD Dmax
81 Turbo TA
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10-06-2017, 08:28 AM
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#21
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11 sec club
Join Date: Aug 2014
Location: Woodbridge
Posts: 834
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Quote:
Originally Posted by sweetbmxrider
Be faster with a radial
But won't look as gangster ![Evil or Very Mad](http://www.njfboa.org/forums/images/smilies/icon_evil.gif)
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Those are MT radial pros
__________________
99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
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10-06-2017, 09:33 AM
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#22
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Meet Coordinator
Join Date: Jan 2008
Location: brick/pt. pleasant beach
Posts: 19,341
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10-06-2017, 06:15 PM
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#23
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Join Date: Feb 2016
Posts: 692
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Quote:
Originally Posted by sweetbmxrider
Be faster with a radial
But won't look as gangster ![Evil or Very Mad](http://www.njfboa.org/forums/images/smilies/icon_evil.gif)
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what tire did you think it is? a slick ?
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10-06-2017, 06:26 PM
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#24
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11 Second Club
Join Date: Feb 2007
Location: elmer
Posts: 274
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Cars pulling timing, gotta get the the water temp consistent between runs. Its hard to do
__________________
87 TURBO T-- 02 Z28
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10-06-2017, 08:31 PM
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#25
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10 Second Club
Join Date: Feb 2008
Location: Eatontown
Posts: 1,647
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sweet pic! Whats your race weight?
__________________
1999 C5 FRC: 12.7@114
2008 TBSS: 12.48@108
2017 Silverado 2500 do you even lift breh?
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