Went to the track - ZR-1 Net Registry Forums

gtcollins@maxnet.co.nz · 01-07-2018

Hi all hope your winter isn't treating you all to badly we are enjoying summer over here in New Zealand
I went to my local drag strip and raced my ZR-1 for the first time since getting it going again after my engine failed I got a best time of 12.68 @ 113.25 MPH I haven't tuned the engine yet a good start I think I would like to see if I can a 12.3 one day
Regards Glen

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Paul Workman · 01-07-2018

THAT is some good drivin'!

I've seen 12.3s done, and my best was a 12.4. But, those cars had been ported with free flowing exhaust and dyno around 430 SAE rwhp HP and going through the trap at 120-121 mph. So, a tune may help a little, but my experience is that a few more HP is going to help a lot in getting to 12.3s.

It's about -18C outside as I type this. We're all envying you right now! Thanks for posting. We (I) needed that!

1LEZ · 01-07-2018

Nice job!

RichS · 01-07-2018

Nice, What was your 60'? Getting that lower will help get your times down.

gtcollins@maxnet.co.nz · 01-07-2018

Quote:

Originally Posted by RichS

Nice, What was your 60'? Getting that lower will help get your times down.

Hi my best 60' was1.906 and when I run the 12.68 my 60' was 1.931

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gtcollins@maxnet.co.nz · 01-07-2018

Quote:

Originally Posted by 1LEZ

Nice job!

Thanks

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gtcollins@maxnet.co.nz · 01-07-2018

Quote:

Originally Posted by Paul Workman

THAT is some good drivin'!

I've seen 12.3s done, and my best was a 12.4. But, those cars had been ported with free flowing exhaust and dyno around 430 SAE rwhp HP and going through the trap at 120-121 mph. So, a tune may help a little, but my experience is that a few more HP is going to help a lot in getting to 12.3s.

It's about -18C outside as I type this. We're all envying you right now! Thanks for posting. We (I) needed that!

Hi Paul -18c that's real cooled where I live the coldest ever recorded weather was 4.1 I have lived in the same city all my life and we get snow sometimes on the hills in the winter it may stay a day or two we did get snow on the valley floor once where I live it was a great delight for all a once in a lifetime experience.
I have headers (which I made )and a 3"exhaust jerry's twin plate clutch I have ported the injector housing a little I haven't completely removed the injector bosses I also have a Marc Haibeck chip I fitted Doug Rippe brackets to the rear suspension and urethane suspension bushes I am also running Hoosier drag radial I am hoping to go racing again at a different track

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Bob Eyres · 01-25-2018

You didn’t say what gears you were running.
Your engine is strong for being almost stock, most stock motor ZR-1’s trap at about 110mph.
4.10 gears will give a solid improvement in 60ft. Times.
4.10’s and drag radials gave me a best 60ft. Of 1.76, and a best e.t. of 12.06 @ 117mph, with a stock engine, headers, 3” exhaust, single mass flywheel.
Stock motor cars (especially the 405hp. version),are actually capable of high elevens with lots of external bolt-ons, and cool air.
For the first time out, you’re doing great, Glen. Keep it up!
flywheel

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gtcollins@maxnet.co.nz · 01-26-2018

Hi thanks for the encouragement ZR-1 is running stock 3.54 gears I went to a different track this time (Masterton Motorplex is the close track )Meremere drag way 6hrs from home so I was running on my road tyres that came with the car sumitomo's my first run was 12.924 @ 112.42mph with a R/T of.186
Second run was12.926 @112.46mph with a R/T of.167
Third run was 13.081mph @ 113.18 with .254 R/T
Fourth run was in 13.008 @112.80mph with a .239 R/T
Last two race had bad R/Ts so will have to work on my R/Ts the car is running good and consistent with .157 difference in time's just let myself self down with my reaction time's I am going back to Meremere next weekend if the weather is good and will see how we go
Regards Glen

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Bob Eyres · 01-27-2018

I wouldn’t worry about reaction time at this point, ( I go on when I see the last yellow light up, but yours will vary.)
That 60ft. Time is the big deal. Every .10 drop in the 60ft. Means multiple car lengths at the other end. Good luck

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01-07-2018	#1
gtcollins@maxnet.co.nz Join Date: Mar 2015 Location: New Zealand Posts: 385	Went to the track Hi all hope your winter isn't treating you all to badly we are enjoying summer over here in New Zealand I went to my local drag strip and raced my ZR-1 for the first time since getting it going again after my engine failed I got a best time of 12.68 @ 113.25 MPH I haven't tuned the engine yet a good start I think I would like to see if I can a 12.3 one day Regards Glen Sent from my SM-G930F using Tapatalk

01-07-2018	#2
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: Went to the track THAT is some good drivin'! I've seen 12.3s done, and my best was a 12.4. But, those cars had been ported with free flowing exhaust and dyno around 430 SAE rwhp HP and going through the trap at 120-121 mph. So, a tune may help a little, but my experience is that a few more HP is going to help a lot in getting to 12.3s. It's about -18C outside as I type this. We're all envying you right now! Thanks for posting. We (I) needed that! __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry Last edited by Paul Workman; 01-07-2018 at 04:55 AM.

01-07-2018	#3
1LEZ Join Date: Nov 2016 Location: Tx Posts: 101	Re: Went to the track Nice job!

01-07-2018	#4
RichS Join Date: Nov 2013 Location: Wilkes-Barre, PA Posts: 148	Re: Went to the track Nice, What was your 60'? Getting that lower will help get your times down. __________________ 1994 ZR-1 #198, sold [img]https://live.staticflickr.com/65535/48400173802_2a6f122cfb_n.jpg[/IMG] [COLOR=RoyalBlue]96 GrandSport#857[/COLOR],[COLOR=Red]Red Gut[/COLOR] 397 LT4, AFR heads,3:90 gears, DRM longtubes, Sepanek 700R4, Yank 3600, bla-bla... Best ET w/396 & 6-speed 11.02 @126.57 w/1.60 60' Best ET w/396 & 700r4 10.82 @124.87 w/1.48 60' 2003 DarkShadowGray Ford Lightning 460rwhp/550rwtq 12.11 @112.18 w/1.71 60'

01-25-2018	#8
Bob Eyres Join Date: Jul 2005 Location: Jupiter, Fl. Posts: 815	Re: Went to the track You didn’t say what gears you were running. Your engine is strong for being almost stock, most stock motor ZR-1’s trap at about 110mph. 4.10 gears will give a solid improvement in 60ft. Times. 4.10’s and drag radials gave me a best 60ft. Of 1.76, and a best e.t. of 12.06 @ 117mph, with a stock engine, headers, 3” exhaust, single mass flywheel. Stock motor cars (especially the 405hp. version),are actually capable of high elevens with lots of external bolt-ons, and cool air. For the first time out, you’re doing great, Glen. Keep it up! flywheel Sent from my iPhone using ZR-1 Net Registry __________________ "It's about the car, not the people." 1991 ZR-1 White/Black #1236 (Owner since 1994). Stock engine with bolt-ons: Hurst shifter,"Forced Air" intake, Coplon duct, Bee Cool Radiator, Demon coils, Jeal prom, Watson headers, X pipe, 3" B&B's, Rippie flywheel, 4:10 gears, A molds, Toyo Proxes-R888's 12.06@117mph. 1.76 60ft.

01-26-2018	#9
gtcollins@maxnet.co.nz Join Date: Mar 2015 Location: New Zealand Posts: 385	Re: Went to the track Hi thanks for the encouragement ZR-1 is running stock 3.54 gears I went to a different track this time (Masterton Motorplex is the close track )Meremere drag way 6hrs from home so I was running on my road tyres that came with the car sumitomo's my first run was 12.924 @ 112.42mph with a R/T of.186 Second run was12.926 @112.46mph with a R/T of.167 Third run was 13.081mph @ 113.18 with .254 R/T Fourth run was in 13.008 @112.80mph with a .239 R/T Last two race had bad R/Ts so will have to work on my R/Ts the car is running good and consistent with .157 difference in time's just let myself self down with my reaction time's I am going back to Meremere next weekend if the weather is good and will see how we go Regards Glen Sent from my SM-G930F using Tapatalk

01-27-2018	#10
Bob Eyres Join Date: Jul 2005 Location: Jupiter, Fl. Posts: 815	Re: Went to the track I wouldn’t worry about reaction time at this point, ( I go on when I see the last yellow light up, but yours will vary.) That 60ft. Time is the big deal. Every .10 drop in the 60ft. Means multiple car lengths at the other end. Good luck Sent from my iPhone using ZR-1 Net Registry __________________ "It's about the car, not the people." 1991 ZR-1 White/Black #1236 (Owner since 1994). Stock engine with bolt-ons: Hurst shifter,"Forced Air" intake, Coplon duct, Bee Cool Radiator, Demon coils, Jeal prom, Watson headers, X pipe, 3" B&B's, Rippie flywheel, 4:10 gears, A molds, Toyo Proxes-R888's 12.06@117mph. 1.76 60ft.