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Went to track for first time with nitrous!

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Old 12-05-2011, 04:40 PM   #21
TRUEBLUE3934
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I would suggest making 1 or 2 passes without nitrous and then a couple with it for comparison on trap speeds. A 100 shot should pick you up a decent gain in trap speed. About a 100rwhp gain picked up my trap by 8-9mph.

Is it a wet or dry kit?
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Old 12-06-2011, 07:02 AM   #22
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It's a wet kit

My goal for the day was to hit 13s, which i did pretty easily haha, and the car is still a work in progress, so ill keep you guys updated
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Old 12-06-2011, 04:32 PM   #23
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OK. A wet kit. That is good.
What size fuel jet are you running and what size nitrous jet are you running?

Do you have any way to monitor the A/F ratio?
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Old 12-07-2011, 07:36 AM   #24
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Also if it matters, i didnt purge when i got up to the line, it just completely slipped my mind for some reason.

As for the fuel and nitrous jets..let me check when i get home, cause i honestly cnt think of it off the to of my head haha
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Old 12-07-2011, 03:40 PM   #25
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Not purging it will make it hit softer when it activates. There is likely to be a brief lag and a rich spike if the nitrous has not been purged. I still have not added a purge kit to my set-up, but it will be done before next spring.

I'd be very interested to know what size each of the jets are. I assume that you have not had a custom tune made for the nitrous usage?! Do you have a nitrous pressure gauge in the system and a bottle warmer? The bottle pressure is important as well.
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Old 12-07-2011, 06:20 PM   #26
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I do have a custom tune for the nitrous, I do not have a pressure gauge, or bottle warmer though, i am getting both though

as for the jets though: .046 nitrous / .030 fuel
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Old 12-07-2011, 08:50 PM   #27
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Bottle pressure is an important aspect of nitrous systems. Ideally, you want to target between 950-1000psi. Significantly more or less can have noticeable results.

The .046 and .030 jets in my car would be rich. A little rich is safer than a little lean, but the .046 nitrous jet goes perfect with a .028 fuel jet in my car. I am not suggesting that you should make that change if you had your car tuned with those jets.

However, I can say that the .046 nitrous & .028 fuel only gained me 60rwhp. That helps me understand the traps a little better, since I was basing my conclusions on a 100rwhp gain. Note that some nitrous kits rate their HP at the flywheel, not at the rear wheels. ZEX is one of them.

If you want better results at the track, do add a pressure gauge, a bottle heater, and a purge kit. You will get MUCH more consistent results from your nitrous that way.

Good luck and let us know how it goes next time out!!!
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Old 12-08-2011, 07:08 AM   #28
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Yeah i have a purge..im going to be getting a pressure gauge and bottle heater...

I really appreciate your help man!, I also just invested in nittos for the track. So I think im gonna be able to get better times next season
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Old 12-08-2011, 08:17 PM   #29
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Another addition to the nitrous system that I would suggest if you can afford to get it is a window switch. It would allow you to set a minimum activation rpm (nitrous wouldn't activate unless rpm are above the set minimum) and a max rpm (nitrous deactivates when rpm reach the set maximum). The max is WAY more critical since you definitely DON'T want to hit your rev limiter with nitrous activated. Serious damage can occur in an instant like that.

You will love the DRs! They will help you lower your ETs by quite a bit. You have to REALLY heat up the Nittos to get them sticky though.
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Old 12-08-2011, 10:15 PM   #30
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Quote:
Originally Posted by TRUEBLUE3934 View Post
Unless he spun his tires a long way down the track (I hope he would have pedaled it a bit before doing that), he wouldn't have lost 5,6,7 mph in 1/4 trap speed. Without more information, I still cling to the idea that he is missing a fair amount of the power his 100 shot should produce.

Pi or not, the 100 shot should be getting him much better traps. My car with only 3.73 gears, 240rwhp, and a pair of very old and dry factory original street tires was trapping 81.5-82mph in the 1/8 and 101.5-102 in the 1/4. I just can't see a 1/4 trap below 106mph with a 100 shot.

On motor alone (283rwhp) I trap 108mph (at our local slow track) to as much as 112mph (at our fast track). I would expect the 100 shot to get him to at least 275rwhp.

Trap speed is mostly about power to weight ratio.

I'm hoping to be able to help him out a little, but need some more details to see if I can...
Good point on the trap speed, he did run a smooth run so you might be right about the tune. Orrr see below...

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I do have a custom tune for the nitrous, I do not have a pressure gauge, or bottle warmer though, i am getting both though

as for the jets though: .046 nitrous / .030 fuel
Bottle pressure was down because it was cooler out, get a bottle heater. You were probably only spraying a 50-75 shot. I bet this is the problem.
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Old 02-20-2012, 01:40 PM   #31
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Originally Posted by TRUEBLUE3934 View Post
Yes, ET only measures the time from when the car begins moving until it reaches the finish line, so reaction won't effect the ET.

A comparison of trap speeds with and without nitrous will give a very good indication of how much power you are gaining with the spray. How big of a shot are you running? Is it a wet kit? What size jets are you running for fuel and nitrous?

I feel like your set-up is not optimized and with a little more info we may be able to help you run a bit better...
Hey I'm new at performance and am willing to learn, I have a stock 1999 35th anni...Mustang GT 4.6L, automatic. I going to purchase a nitrous kit and don't have a clue on what I need to get up to speed with these new 5.0L engines. Give me the facts and I'll purchase the best products out there. I want to make her scream, that is a gentle scream, but at least have something for these 2012 motors.

Last edited by shrimperdad; 02-27-2012 at 12:31 AM. Reason: New to performance.
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Old 02-20-2012, 02:05 PM   #32
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What do I need for a good road set up to play with these 5.0L engines. I have a stock 1999 Mach 1, 4.6L, help me guys I have a grudge to settle with my 5K car against a 45K 2012. I know with your knowledge we can get it done. I'm not a mechanic but I have totally overhauled and engine before so I'm not stupid. You tell me what I need and I'll buy it and give you the credit as deserved. I have wanna prove a point to these goobers on the road. I can't run with the big dogs but I'm gonna. Help Me?

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Old 02-20-2012, 08:29 PM   #33
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Ford didn't make Mach1's in 1999...

If it is a 1999 GT, you will need a lot more power to run with a new 5.0. I would not focus on trying to run with a 5.0. Just improve your car and enjoy it.

The troll hair on the back of my neck is standing up.
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Old 02-21-2012, 07:41 AM   #34
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Well shows how much I know about performance, I thought I could at least compete with a stock 5.0L if I put a little nitrous on it.

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Old 02-21-2012, 07:54 AM   #35
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Well shows how much I know about performance, I thought I could at least compete with a stock 5.0L if I put a little nitrous on it. But as far as the Mach 1 that is what is painted along lower door panel of my 35 anniversary addition and it also has mach 1 sound system.
mach 1000 or mach 460 sound system, but your car is not a mach1. 03/04 was the mach1. 99 is just the anniversary edition as you're well aware of.
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Old 02-21-2012, 07:55 AM   #36
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And honestly, if you know as much about nitrous as you do your ''99 mach1 because the door panel says it is one''... then it isnt the power adder for you. Too many rules and variables you need to know before you go tossing the juice in there and popping your motor to pieces
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Old 02-21-2012, 08:44 AM   #37
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^ THAT....ALL DAY.
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Old 02-23-2012, 07:27 AM   #38
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Thanks for the criticing but it's good feedback I'm sure you are not as sarcastic in person. This is my first Mustang but I have a lot to learn. I'll keep reading and gather knowledge along and along.
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Old 02-23-2012, 07:32 AM   #39
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Thanks I'll take your advice and just play around with her. Sure is alot run of room under the hood for something maybe a turbo addition what you think. I saw where I can get turbo system for $1500 w/installation which includes dyno tuning. Do you think I'm still wanting for to much.
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Old 02-23-2012, 11:31 PM   #40
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Thanks for the criticing but it's good feedback I'm sure you are not as sarcastic in person. This is my first Mustang but I have a lot to learn. I'll keep reading and gather knowledge along and along.
Want to know how to get your pony to run with the new 5.0L? First off, start your own thread. People would be a lot happier helping you out and can focus on your specific questions better.

Just my opinion though.

Hint: Kenne Bell should put you in the ball park with the new 5.0's
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Old 02-23-2012, 11:31 PM
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