Nine Finger 02 Z28

iTrader: (11)

I went out to Pheonix this weekend for the PSCA Finals and I took my car out there for some Test and Tune between rounds.

Sat.

1st Run
1.552 60ft
4.376 330ft
6.735 1/8et
104.593 1/8 mph
10.502 1/4et
130.282 1/4mph

2nd Run
1.541 60ft
4.364 330ft
6.728 1/8et
104.283 1/8mph
10.500 1/4et
130.298 1/4mph

3rd Run
1.568 60ft
4.372 330ft
6.730 1/8et
104.639 1/8mph
10.495 1/4et
130.529 1/4mph

The first runs were done with no NOS off of the line because I wasn't sure what to expect.So I decided to pull out 2 plugs which they both seem to be a bit lean.That jetting was .52 NOS .32 Fuel so I put in a .35 fuel and finally started leaving on the NOS.

4th Run
1.430 60ft
4.225 330ft
6.581 1/8et
104.601 1/8mph
10.352 1/4et
130.282 1/4mph

5th Run
1.466 60ft
4.256 330ft
6.614 1/8et
104.502 1/8mph
10.384 1/4et
130.263 1/4mph

6th Run
1.537 60ft
4.361 330ft
6.723 1/8et
104.452 1/8mph
10.491 1/4et
130.382 1/4mph

7th Run the bottle was getting low
1.524 60ft
4.369 330ft
6.744 1/8et
103.863 1/8mph
10.532 1/4et
129.654 1/4mph

8th Run nearly empty bottle
1.517 60ft
4.367 330ft
6.779 1/8et
101.866 1/8mph
10.648 1/4et
127.070 1/4mph

Sun

1st Run fresh bottle New Best
1.461 60ft
4.238 330ft
6.582 1/8et
105.221 1/8mph
10.327 1/4et
131.174 1/4mph

2nd Run
1.489 60ft
4.277 330ft
6.624 1/8et
104.956 1/8mph
10.383 1/4et
130.536 1/4mph

3rd Run
1.576 60ft
4.377 330ft
6.722 1/8et
105.275 1/8mph
10.466 1/4et
131.116 1/4mph

4th Run
1.502 60ft
4.317 330ft
6.676 1/8et
104.514 1/8mph
10.446 1/4et
130.209 1/4mph

5th Run
1.626 60ft
4.452 330ft
6.816 1/8et
104.399 1/8mph
10.592 1/4et
130.100 1/4mph

6th Run I guess the bottle must have been near empty
1.512 60ft
4.375 330ft
6.803 1/8et
101.346 1/8mph
10.698 1/4et
126.219 1/4mph

The rest on the motor
7th Run
1.655 60ft
4.720 330ft
7.270 1/8et
96.434 1/8mph
11.336 1/4et
121.413 1/4mph

8th Run
1.726 60ft
4.772 330ft
7.300 1/8et
97.323 1/8mph
11.336 1/4 et
122.313 1/4mph

9th Run
no slip the tower said that they didn't have it but told me that I ran a 11.35 at 122

All runs were made on complete stock fuel system,stock Rear End with 4.10's and Eaton Posi on 28x10.5 ET Drags,and stock short block.
Race weight is 3160#'s with me in it.

Reckless

iTrader: (9)

Nice times! 3160#s? You must have that thing gutted pretty well?

Coach 02 A3 Z/28

iTrader: (10)

Nice runs man!

Great practice for ya this past weekend. Great to see some else to make alot runs over a weekend.

Coach

Nine Finger 02 Z28

iTrader: (11)

Thanks.Yeah I actually got tired of running on Sat but my wife stayed at the Motel so on Sun I was only going to make few passes for her to get on video and then I couldn't stop running until they said it was over...

Terry Burger

iTrader: (4)

Hehe nice times!

W8N2SQZ

iTrader: (6)

Hey Ninefinger,
It was cool meeting you. Good luck with that thing and keep us posted if you go back to the track.

Glenn

Nine Finger 02 Z28

iTrader: (11)

Same here it was nice meeting you as well.I'll keep you posted.Thanks...

LIL SS

iTrader: (9)

Nice times.. Stock fuel system and stock rear.. Nice to see the rear holding to the kind of 60' I was also wondering what the stock FP is good to. Now I am not too worried about spraying a 100 shot on the TR236 for a dyno tune.

RyanJ

how about some details on your setup? I see A3...what converter? Who's H/C if you don't mind me asking..?

Colonel

Yep, I keep tellin' people these stock fuel systems will do more than they think. Some folks think it's maxed out with heads/cam running NA.

Sweet times and killer MPH.

LS1x2

iTrader: (11)

I for one am surprised the stock fuel system is keepin up on the dope. In the pic below you can see what happened to a firends car with heads/cam and a 125 shot when the fuel pump couldn't keep up
http://torqueaddicts.com/media/aj/sl...ock%20001.html

Colonel

4mulaJoe, did he have a fuel pressure gage? Dry shot or wet?

With any nitrous setup, it's best to start with the small pills and work your way up one step at a time while carefully Autotapping along the way. By doing this you should be able to catch it starting to run lean before it's too late. A fuel pressure gage is also a very good idea in any high HP or power adder setup.

LIL SS

iTrader: (9)

You don't even need a fuel gauge if your using a fuel pressure safety switch that is properly set up.

Colonel

It better be properly setup. I've seen many of them set way too high (seems like most of them used to come that way. I don't know if that's still the case or not) and a few set too low.

LS1x2

iTrader: (11)

It was an NX wet kit. I know there could have been other factors, but I don't see the stock pump supporting 570rwhp. I'd have to be proven wrong on a dyno.

Colonel

With an M6 (more efficient drivetrain) in a 98 or an '01-'02, I can see maybe 550 RWHP (it's been done before.) 570 is certainly pushing it though! I wouldn't have tried that without some careful testing to confirm that it would work, such as what I described in my last post.

LIL SS

iTrader: (9)

Colonel, correct me if I am wrong but the fuel pump is the same in the years correct? I could see 98-02 pulling the same RWHP off the stock pump, just depending on the size of the N20 shot.

450rwhp NA / 100 shot (98, 01-02)
400rwhp NA / 150 shot (99-00)

Colonel

The '98, '01, and '02s have the higher capacity pumps. The '99s and '00s got the smaller ones.

LIL SS

iTrader: (9)

I thought that was just injectors..

Colonel

Nah, different pumps too. Don't ask me why. I don't see why they need injectors or pumps as big as what they have in any year to support stock power levels...but I'm glad they come that way. I'm making roughly 425 RWHP and I'm not even thinking about the fuel system at this point.

<----to GM for the fuel systems.