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post #1 of 40 (permalink) Old 10-27-2010, 12:09 PM Thread Starter
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New best ET with turbo SC

A few of the STL area guys went over to Gateway last night for the last test & tune session of the year. I brought my turbo car to see if I could improve on my previous best ET of 10.7.

First pass with a 16 pounds of boost and badly spinning off the line and again after the shift into 2nd it ran a dissapointing 10.882 @ 133.83 with a 1.905 60ft.

Second pass I lowered the tire pressure from 15.5 to 14.5 PSI and increased the boost to 18 pounds and once again had bad tire spin in 1st and 2nd gear but still went a little quicker running 10.752 @ 134.95 with a slightly better 1.867 60 ft. At this point I was beginning to worry that I would not be able beat my 91s best ET.

Last pass I lowered the tires to 14.0 and increased the boost a little to 19 psi, and was not feeling very good about my chances for an ET lower than my 91. Luckily about 4 cars before I was supposed race, they stopped us and prepped the track for some fast cars racing in a track shootout final. That must have helped because even though it was spinning off the line it was still accelerating pretty hard and I didn't feel any spin after the shift into 2nd. When I saw the 1.633 60 ft on the scoreboard I knew it was going to be my best pass, and was expecting somethings in the 10.5s. When I got the timeslip I was pleasantly suprised to see it had ran a 10.281 @ 136.28

I'm 99% certian that with better tires and a little more boost, I can get into the 9s. The guy helping me (Dan Saitz of Hyperformance) said for the fuel we had in the car (50/50 mix 93/116 octane) we could have added 3 more degrees of timing and turned up the boost to the sweet spot of 24 psi and the car would run 9.8s. Oh yeah this was done at full street weight with the only changes being the race wheels/tires (aprox 4200 lbs). Best of all nothing broke.

http://www.sccoa.com/forums/attachme...3&d=1288194177

David

PS: This link has more details and some pictures of the car.

http://www.sccoa.com/forums/garage_v..._vehicle&id=39

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
2016 SRT Challenger Hellcat..................707HP/650TQ
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post #2 of 40 (permalink) Old 10-27-2010, 12:16 PM
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did you ever put a cage in either car?

nice times homie!

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rest in peace JL
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post #3 of 40 (permalink) Old 10-27-2010, 03:37 PM Thread Starter
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did you ever put a cage in either car?

nice times homie!
No...I'm planning to install a 6 point roll bar over the winter. That will make it legal to 10.0 @ 135, which will be good enough to get away with racing it at most tracks.

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post #4 of 40 (permalink) Old 10-27-2010, 03:49 PM
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Yes sir nice !! imagine what the times would be with solid traction

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post #5 of 40 (permalink) Old 10-27-2010, 08:45 PM
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Great Job Dave. I am sure you had them all scratching there heads.

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post #6 of 40 (permalink) Old 10-27-2010, 09:27 PM
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Best of all nothing broke.
And that's the icing on the cake!

Congrats!
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post #7 of 40 (permalink) Old 10-27-2010, 09:31 PM
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Almost makes me wish I hadn't sold my 4.3 stroker .. Very nice man hope you hit 9's.

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post #8 of 40 (permalink) Old 10-27-2010, 09:51 PM
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thats his 347 turbo car ...... that good stuff

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post #9 of 40 (permalink) Old 10-27-2010, 10:40 PM Thread Starter
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Thanks guys.

The old 27" MT ET streets I've got now are pretty much shot, so I'm getting a new set of 28" Hoosiers next week that should help lower the 60 ft times and give me a little more top end speed without raising the rev limiter.

If it runs high 9s with just the new tires and a little more boost that would be cool, but I don't really care if it does. Worried that if I get too carried away with running quicker and quicker track numbers, it will soon turn into a full blown race car and I'll stop enjoying it.

I'm really struggling with the idea of installing a roll bar, for the same reason.

David

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post #10 of 40 (permalink) Old 11-02-2010, 04:51 PM Thread Starter
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Heading to Kentucky this weekend to race the car again. With a new set of slicks and a few minor changes to the tune, rev limiter and boost settings, I'm hoping for high 9 second timeslip to end the season.

David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
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post #11 of 40 (permalink) Old 11-02-2010, 04:54 PM
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man, I'm just surprised at the trakcs that are allowing you to run there....I guess safety is not their primary concern?

Nick......................I'm back!!!
May you fly low and fast
rest in peace JL
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post #12 of 40 (permalink) Old 11-02-2010, 06:00 PM
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Damn Dave. Those are some awsome times!!
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post #13 of 40 (permalink) Old 11-02-2010, 06:29 PM
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David...

I plan to spectate and hopefully be witness to your 9 sec. run...

Cheri and I and a friend of mine will all be there at around 10 am. Looking forward to seeing you guys again and drive safe down to KY. Right know it looks to be right at 60* for ya and NO rain..... nice cool Temps!!

see ya guys soon.

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post #14 of 40 (permalink) Old 11-02-2010, 10:51 PM Thread Starter
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Quote:
Originally Posted by _95badbird View Post
man, I'm just surprised at the trakcs that are allowing you to run there....I guess safety is not their primary concern?
The race in KY this weekend is a private track rental and I won't be in the competition, just making timed runs. I was only able to make those passes at Gateway, because they were ceasing operations and closing the track within a couple days. Tinted windows and the assumption by track officials that I already had a cage if I was racing in the slick tire class didn't hurt either.

Same car had already gotten the boot in 2006 for running too quick, and had not been raced there since that time. Seriously considering the addition of a roll bar over the winter.

David

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2016 SRT Challenger Hellcat..................707HP/650TQ
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post #15 of 40 (permalink) Old 11-02-2010, 10:52 PM Thread Starter
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Quote:
Originally Posted by Jeff Bratton View Post
David...

I plan to spectate and hopefully be witness to your 9 sec. run...

Cheri and I and a friend of mine will all be there at around 10 am. Looking forward to seeing you guys again and drive safe down to KY. Right know it looks to be right at 60* for ya and NO rain..... nice cool Temps!!

see ya guys soon.

Jeff
Jeff,

That's great, I'll see you there.

David

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post #16 of 40 (permalink) Old 11-03-2010, 12:15 AM
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Wow, those are some bad a** times! 10.281 at full weight none less. I like your set up.

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post #17 of 40 (permalink) Old 11-03-2010, 12:28 AM
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Quote:
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10.281 @ 136.28


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post #18 of 40 (permalink) Old 11-03-2010, 09:24 AM
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Originally Posted by David Neibert View Post
The race in KY this weekend is a private track rental and I won't be in the competition, just making timed runs. I was only able to make those passes at Gateway, because they were ceasing operations and closing the track within a couple days. Tinted windows and the assumption by track officials that I already had a cage if I was racing in the slick tire class didn't hurt either.

Same car had already gotten the boot in 2006 for running too quick, and had not been raced there since that time. Seriously considering the addition of a roll bar over the winter.

David
makes sense....

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rest in peace JL
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post #19 of 40 (permalink) Old 11-03-2010, 12:56 PM Thread Starter
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Main reason for racing the car, is to prove to myself what it's really capable of. I was also getting tired of explaining why the best ET with my v6 supercharged SC was quicker than the v8 turbocharged SC

David

1991 SC AOD 4.2..2.3 Whipple..........10.910 @ 125.61
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post #20 of 40 (permalink) Old 11-03-2010, 01:52 PM
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Congrats Dave.



A lot of us are turning in better times this fall. I hope to improve mine when we run the cars on the 27th at Rockingham.

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post #21 of 40 (permalink) Old 11-03-2010, 03:09 PM
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Congrats Dave.



A lot of us are turning in better times this fall. I hope to improve mine when we run the cars on the 27th at Rockingham.
I'm hoping to at least have my chassis finished before years end.....but the way my heath keeps declining, I don't think its possible.

Nick......................I'm back!!!
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post #22 of 40 (permalink) Old 11-03-2010, 03:11 PM
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I'm hoping to at least have my chassis finished before years end.....but the way my heath keeps declining, I don't think its possible.
You're health? Get that hammer extracted from your head, you'll be all right.

Mods? Yea, I got mods ...
Air silencer delete, warp drive, dilithium crystals, flux capacitor, Slingshot Rubber band power adder, Moonshine & Gas, Leaf Blower Supercharger, Hamster Wheel & Hamster, Energizer Bunny generating 1.21 gigawatts, Mr. Fusion® Home Energy Reactor, hover conversion and a sextant celestial navigation system (The original GPS)
Best 1/4: 1,320 nanoseconds @ 670,616,629.2 miles per hour

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See a list of my real mods and pictures of my car HERE. The true performance of my car was made possible by the Carolinas Crew Chief, RobertP at Rob's Tire & Auto
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post #23 of 40 (permalink) Old 11-03-2010, 11:02 PM Thread Starter
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Congrats Dave.



A lot of us are turning in better times this fall. I hope to improve mine when we run the cars on the 27th at Rockingham.


Thanks and I hope you get what you're after on the 27th. BTW, I met Robert P at the Shootout. Nice guy and a nice car, sucks that he had an electrical problem with the car on race day.

David

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post #24 of 40 (permalink) Old 11-03-2010, 11:26 PM
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Fuel issues which are being addressed lol, I'll have over kill on the fuel system

Keep us posted I see 9s very soon in your future

Robert

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post #25 of 40 (permalink) Old 11-04-2010, 08:03 AM Thread Starter
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Fuel issues which are being addressed lol, I'll have over kill on the fuel system

Keep us posted I see 9s very soon in your future

Robert
Better to overkill it on the fuel system than to come up short. I've got dual 255 high pressure pumps in the tanks of both my SCs.

David

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post #26 of 40 (permalink) Old 11-04-2010, 08:51 AM
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Better to overkill it on the fuel system than to come up short. I've got dual 255 high pressure pumps in the tanks of both my SCs.

David
Got any pics of how you did that setup?

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post #27 of 40 (permalink) Old 11-04-2010, 10:20 PM Thread Starter
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Got any pics of how you did that setup?
This post has a picture of the dual pump assembly and some other details about wiring and fuel level sender, that we recently put in my 91 SC. The 93 SC was done similar, but instead of welding in pushlock fittings we used a bulkhead fitting. David Dalke made the dual pump setups for both cars, and swears he won't do another one because it takes too much work.

http://www.sccoa.com/forums/showpost...&postcount=140



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post #28 of 40 (permalink) Old 11-09-2010, 04:26 PM Thread Starter
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Ran another best of 10.17 @ 140 this past weekend at a track in Clay City, KY before breaking the transmission. New tires worked great, but they also made it very clear the converter is stalled too low at 2700 rpms. Best 60ft was 1.680 and the tires were not spinning.

Getting a new 3500 stall converter when transmission is repaired next week. Probably won't get another chance to race it until spring, so 9s will just have to wait.

David

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2016 SRT Challenger Hellcat..................707HP/650TQ
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post #29 of 40 (permalink) Old 11-09-2010, 04:33 PM
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They dont give you crap for not having a cage? Congrats 140MPH is getting up there. I hope you got decent brakes and make sure to inspect everything before making runs. 9s are just a tweak away.
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post #30 of 40 (permalink) Old 11-09-2010, 08:40 PM Thread Starter
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They dont give you crap for not having a cage? Congrats 140MPH is getting up there. I hope you got decent brakes and make sure to inspect everything before making runs. 9s are just a tweak away.
Car got the boot from Gateway in 2006 for running 11.40 @ 125 without a roll bar, and on that same night my 91 got the boot for running 10.68. Didn't go back to Gateway until 2 weeks ago when the track was getting ready to cease operations and I knew that nobody would care.

I was actually surprised that I didn't get some greif from the track in KY but it was a private rental (like the Shootout) and they were extremly lax on safety stuff. They were happy if you just wore a helmet and your seat belt, I had a fire jacket on too and apparently that was safe enough for them.

I did get one funny look from the track guy who was working the staging lanes on the last pass when they were making the test and tune cars put a dial in time on the window if you wanted to keep running. I had a 10.10 on the window and the guy calling the dial in times and car numbers up to the tower did a double take and was giving me that WTF look, and I just shrugged. He just shook his head and waved me up to the burnout box.

I'll probably go back for their spring meet, because it doesn't look like we are going to have a track in STL that soon.

David

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