I received my new G-Force fire jacket from Jeg's on the 18th, so I towed back to KCIR for the Wednesday Test-n-Tune.

They let me in this time - and no one lifted a hood or trunk in Tech inspection all night. I was the only person with a street car wearing a jacket - and I made sure the track manager knew that before I left for the evening. What a crock - although I heard several people talkng about the "new" regs on fire jackets, no one was wearing one. I looked around, too.

I decided to push my nitrous to 75-shot plus 75-shot, so I had set the jets that way on both stages. I was going to concentrate on the first 1/8 mile, partly to save N2O and partly being careful.

The first pass, against a newer ZO6, was exciting when I hit the afterburner, but immediately the engine cut out three times with the full 150-shot. I backed off, then got back into both stages, and everything was still running, but finished running with just a 75-shot engaged. (I beat the 'vette - mostly because his R/T was so bad).

The second pass was OK - no cutting out - and I let off the second stage about 1/2 way again. I backed down to 75-shot and 50-shot on the secondary for the last two runs - something still didn't feel right w/150-shot. It may have been the jacket. I pulled the plugs after run #2 - they all looked good, thank heavens. Shaved grounds and 104 octane keep me running. By the 4th pass, the bottle went dry - no purge plume at the end. I'm done.

RT.......220.........375.........201.........025.. ........
60'......1.880......1.972......1.985.......2.048.. ......
330'.....5.516.....5.621.......5.671......5.674... ...
1/8......8.560.....8.645.......8.724......8.719..... .
MPH....80.65......81.71.......81.04......81.33.... ..
1000...11.224....11.272.....11.376.....11.373.....
1/4.....13.500....13.648.....13.619.....13.618....
MPH....98.64......91.01......101.31.....101.26....

Nothing spectacular- just mid 13s....

I'm going back next Wednesday with full bottles, and will install a MSD-controlled LED shift light so I can use my Shift_Fast manual shifter safely.

I might leave the jacket at home, though.

 

Any runs w/o nitrous?

 

Nice 60'.

I'd keep the jacket with you though.. you know how it is, Murphy's Law, the time you don't bring it is the time they decide to enforce it again...

 

You got it - I'm gonna wrap it around whichever nitrous bottle is mounted, helps keep it warm, and I always know where it is.....

 

No - do you think I should?

I really don't care about NA, 'cause NA tuning is lots different w/o spray - and I have no tuning.....

I pay a high price for each run, about $19/pass plus nitrous at 1 1/2 lb per run, and since I really want to finish work on the Shift_Fast project and get the 150-shot to work well, I just haven't wanted to run NA.

I really want into the 12s this season.

 

I justed wanted to see if you wanted to know how much the nitrous helps

 

Oh - yes, there is that.... sorry..

 

NA tuning whats that

 

N ot A ny tuning.......

Example; playing with the MAF voltage to advance timing is not in my plans while spraying nitrous.......

Now, does wearing a fire jacket while sitting in the staging lanes for an hour mean I'm "tuned" ? Especially if I'm the only one ???

 

Well my buddy's here always tell me to do all motor runs, sometimes its good to have at least one all motor run to make sure the car without nitrous is moving strong as it should be. Ofcourse everytime i go, i never end up doing it lol. But its a good idea because if your having a problem without nitrous, when you use the nitrous, its ony going to add w/e HP shot ur putting instead of having a strong all motor plus nitrous.

 

Oh, the car runs strong when NA, just not the same thing...

Since you've done this mod:

I decided yesterday that I need a shift light to use the manual Shift_Fast mod safely - I'll use a MSD programmable window switch and mount a LED cluster where I can see it day/night. This way, I don't have to try and watch the dash tach to shift..

I was reading a Jegs catalog and found the Shift Light section - it was a DUH for me. I just use the automatic > manual > automatic Shift_Fast controller I've already built, and connect the LED cluster to the MSD switch. Ten minutes of work, a LED shift light, and no ricey tach bolted to the dash.

 

This is what I was thinking also. You could be only running 15.5 w/o nitruos and running 14.5 with nitrous. If you get your n/a times down to about 15.0 you'll be at 14.0 with it. Thats just an example of course. But I'm always intersted in the n/a time of nitrous users.

 

Thats good idea bout the shift light but, didnt you already set it up to shift automatically with the msd set up you made? how come u need shift light?

and yea ajcool, everyone tells me the same i know i should do a 1/4 all motor but i never do it. lol i just dont want to waste a run on all motor when i could be going faster lol. next time ill do my 1st run. n/a.

 

Because I'm cautious when testing mods.... Just bumping the shots from #1=50-shot and #2=75-shot to #1=75-shot and #2=75-shot caused several problems. I decided to go back to 75 + 50 - and I was using the standard automatic shifting.

When using the Shift_Fast manual mod, and a heavy load of spray, you can't watch the tach and drive - the tach lags actual RPM a lot - which makes me want to test the Shift_Fast manual shifter with a shift light. My reaction time and the transmission internal shift delays will still add up, so you have to flip the switch well before rev-limiter kicks in.

I expect to set the shift-lite to 6200 or 6300 so I can move the switch and the tranny has time to shift before the fuel-cut happens.

Once I'm comfortable with that, then I'll dial in the automatic version of the Shift_Fast and sneak up on shift points, while making sure my circuit design works right. It seems to, but testing on the street and testing on the strip under full spray is two different things, you know.

Fun stuff, but it all takes time - and a new fire jacket, it seems....

 

How come you need a fire jacket now? new regulations or something?

 

Just remember, some of the changes you can make to improve NA times will destroy your engine when spraying - think "ignition advance".....

Sure, if you think you need it, run NA - it will clock just like it did before you went to spray, plus it feels really slow. Tires hook differently, shift points can be different, and launch is different. Why mess up your reflexes to go slower? Got a bad knock sensor and your ECU pulls timing? Good - less advance is good with spray.

Just my personal opinion......... but my car has completely stock interior (and jack) and all I need to do is change front tires and I can go to the strip or drive 500 miles to Dallas with everything working.

 

Every car with non-OEM turbo or supercharger, or nitrous, must have a fire jacket on the driver - as of Feb. 2006. It's in the book.

Enforcement seems to be random, however. See my most recent threads.

 

just read ur post. reason i would want to do an n/a run is to see how i compare to others with similar setup on all motor, I have actually never ran all motor before. iv been to the track 3 times and all times have been with nitrous.

also, i just called my local track to ask if they require fire jackets for nitrous use. They have never mentioned it before, but maybe they have started to enforce it lately.

 

I connected a LED cluster to the automatic Shift_Fast module, and went out driving, using the manual shift switch. The shift lite works as intended - see the light, move the switch. Stuck the LED cluster on the center dash, up by the air vents - you can see it just fine there.

Track time on Wednesday, if it don't rain and the creeks don't rise...

Fire jacket and computer rules for 2006:

http://www.homemadeturbo.com/forum/i...7015.msg652514

I hope most tracks ignore these two rules ....

 

Man, a 1.880 is one hell of a 60', dude. Nice job.

My 60's are usually horrible!

 

It's all in the tires, the launch, the transmission, the driver, and whatever is working that day on that track. 60' times can be pretty random, I've noticed.