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#1 |
![]() Join Date: Feb 2010
Location: Ochlocknee, GA
Posts: 434
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March 6, 2013 Orlando Speed World was open for test and tune runs.
temp was about 68 deg. with little wind and low D.A. Car : my 1990 ZR-1 with 4l80E auto and 3.73 rear gears. 1st pass left @ 1200 rpm 2nd and 3rd passes left @ 1800 rpm. each pass trans shifted @ 7000. my 1st pass @ 6:50 p.m. 2nd pass @ 7.31 last pass @ 8:48 R/T .371 R/T .776 R/T .581 60' 1.719 60' 1.698 60' 1.722 330' 4.917 330' 4.865 330' 4.888 1/8 7.525 1/8 7.452 1/8 7.473 MPH 92.26 MPH 95.03 MPH 95.10 1000' 9.787 1000' 9.698 1000' 9.716 1/4 11.687 1/4 11.585 1/4 11.600 MPH 118.49 MPH 118.80 MPH 119.38 As you see i need to work on my reaction times, but the runs were great plus track traction was very good. as my 60 ft times last year were 1.74 to 1.78. After racing as i put the " Z " back in the garage the mileage just turned over to 121,000 miles. When the weather gets warmer here i think my e.t.'s will drop to 11.75 or slower. Thanks for reading John Becker 1990 white/black # 2546 one of a few auto ( 4l80E ) eq. ZR-1's Last edited by aafc; 03-07-2013 at 10:28 PM. Reason: spacing |
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#2 |
Join Date: Aug 2009
Location: Hamilton, Va.
Posts: 113
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Whats been done to the motor? Nice 60 ft. It seems that the auot works pretty well. I would have guessed with the absence of low end on thee motors the 60 ft. might not be as good with the auto. Thanks for posting. Some impressive times. Just curious as to what modes other than the trans and the gears to generate those times and mph.
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#3 |
![]() Join Date: Feb 2010
Location: Ochlocknee, GA
Posts: 434
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Thanks,
The motor was rebuilt by SGC, its his 550 hp pkg. 368 cu in with stage 1 cams. On a Dyno, after adjusting new injectors it pulled 418 RWHP. do not remember what the RWTQ numbers were. Tires are BFG drag radial at 26 lbs. Now i have to tell you that the DA was - 60' ft plus dry and no wind or dew. Some one said it was a mine shaft air. John 1990 white/black #2546 one of a few auto ( 4l80E ) eq ZR-1"s |
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#4 |
![]() Join Date: Jul 2010
Location: Woodstock, Ontario, Canada
Posts: 1,275
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What torque converter are you using in the 80e? What is the flash stall when you launch?
Nice times. peace Hog |
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#5 |
![]() Join Date: Feb 2010
Location: Ochlocknee, GA
Posts: 434
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Hog,
I'am using a 3200 stall converter made by FTI in Deland FL. I leave the line at 1800. The trans is controlled using comupshift, I have it sent to shift at 7000 at WOT. After burn out I shift into 3rd gear ,stage, come up to 1800 last yellow bury the pedal and keep her straight. Then hang on and enjoy the ride. I may try leaving at a higher rpm ( 2000-2200 ) if i can hold on foot brake. John 1990 white/black #2546 one of a few auto ( 4l80E ) eq ZR-1's |
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#6 |
![]() Join Date: Apr 2012
Location: TEXAS
Posts: 171
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Nice numbers. Thanks for sharing.
__________________
1966 Mustang GT tribute 1988 Callaway Twin Turbo Aerobody (FOR SALE pm me for more info) 1991 Callaway CR1 SuperNatural 475 Aerobody 1992 Callaway SuperNatural 435 Aerobody (sold) For Sale: |
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#7 |
![]() Join Date: Feb 2010
Location: Ochlocknee, GA
Posts: 434
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April 27 2013,
Points race 1/8 mile.1st time run RT -.133 60' 1.752 1/8 mile 7.561@ 93.92 2nd Run RT -.070 60' 1.741 1/8 mile 7.562 @ 93.91 For 1st round dialed in at 7.55. Ran 60' 1.713 1/8 mile 7.521 @ 93.90 O yeah red lite again, but i had a blast. |
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