1/4 mile track times

Went out to the drag strip this weekend and got some times, and a trophy! It was my first time at the drag races and I had a blast! I am running Mickey Thompson 31x11.5 Baja Belted tires with Eagle commet rims, otherwise its stock. At 1/8 mile I was going 65mph and at the 1/4 only 80mph. My best 1/4 mile time was 16.720 and that had a terrible reaction time of 1.2 sec. I believe (I don't have the slips in front of me). It was wierd, since on another run I had a reaction time of .612 (still not that great) and ran the 1/4 in 17.1!

I got a 2nd place trophy in the trophy class with the winner being a Mustang who ran 14.78 and said he would run 14.75. :)

Next weekend I will install my PV muffler and interceptor and see what times I run then. Then in three weeks I plan on having the SC installed and I will get times then too!

Very cool, I'd love to see real-world drag time changes for those mods!

Cool! I look forward to seeing what you clock in with the Interceptor, the PV, and the S/C. Keep us posted.

Oh and I forgot to mention that the track anouncer bought me a beer for having the wierdest car out there! :) The anouncer first said that I was driving an Amigo sponsered by NASA, I went up and corrected him (you can't call my car an Amigo!!) and for the rest of the day he announced me as a NASA Vehicross!

Sounds like fun.. Maybe next time I can go? Let me know and would love to go with you.

I'm going out this Sunday (fathers day) I think. If you don't have plans, it should be a lot of fun.

I took my VX out to the dragstip once last spring... I managed several back-to-back 16.3x runs pure stock except the Injen intake. I've since added the interceptor and PV muffler as well, and would love to know what difference it would make. I'm betting nearly 1 second, based on the SOTP meter. :)

BTW... just FYI - reaction time does not count in your elapsed time. The clock for ET doesn't start until you move. Oh, and also, .612 is not bad at all -- a "perfect" amatuer light is .500.

Mark

OK well just got back from the drags, I put the PV muffler on on Thursday. I had descent reaction times all in the low .6's but there was very little differance on the 1/4 mile times. Every run it got better but I only did 4-5 runs this time. My best time this time is a 16.84. I think I should have maybe reset the computer or something after I installed the muffler. Well anyway next week I will have the interceptor on (and reset the computer) and I will post the times then. After installing the muffler my TOD seems to be going on a lot more when it shouldn't, I'm sure it's something else though. But WOW, I got a lot of looks and questions, I guess it sounded really good going down the track!

This is real information! I can't wait to see the difference after your reset your computer. I guess other factors like octane and weather temperature must affect the results.
Michael

I always use Chevron premium (92 octane). I also have a speaker box with 2 subs (100 lbs) that I am pulling along. Yesterday was a cool cloudy day (after a big rain storm the day before), and last weekend was sunny and warm with good sticky track. Records were broke last weekend and the same guy was out again and ran .3-.4 under last weeks time. Every run that I ran I knocked off .07. I thought that I was running slower so I changed my dial in time and ended up breaking out, running the 16.84.

So far, you added the PowerVault muffler and it didn't change the times, is that right?

Thats right

Just put the Interceptor on last night, took me forever to find the plug in. The picture at Tones site helped a lot. I was looking at the pic and underneath the car and found where it was supposed to be, but my car was REALLY dirty and it was invisible to me until my brother reached up in there and played with it a little. Anyway after I found it it only took about a 1/2 hour to 45 min making sure everything was zip tied up. First impression is that I like it! It switches gears much quicker than before, every once in a while I get a hard shift but not that bad. Going out this Sunday and will be posting times. I am running about 25% pressure and 100% delay. I will take a guess and say that it will run a 16.5 to 16.4 with Mickey Thompsons and speaker box. For racing how high should I turn it up?

what's an interceptor? i saw it on tone's site...let us kno if it helps a lot.

and about resetting the computer...what would that do? yah im askin a lotta questions and lookin stupid...better than sittin in the dark. and would you ahve to take it in t isuzu to reset? thanks

To reset the computer you just unplug the battery for a 1/2 hour+. This will force the computer to learn your driving habits again (with the new mod), If you don't reset your computer than it slowly learns the mod but it is still remembering your previous driving without the mod. With the interceptor your shifts go a little harder and faster. When your driving the shift takes a second or so and then starts out at low rpm's in the next gear. With the interceptor my shifts are quick and have higher rpm's entering the next gear. Makes it feel quicker, but will see at the track.

oooh....that's neat with the comp. imma have to do that. i guess my driving habits = "why does he wanna break me"

hrrmm...let me kno how much better the interceptor is...probably uses up more gas eh? hehe, but hey if it's quicker...why not get it! sorta like driving manual....a little....i miss manual...

i went to see if they could change tranny to manual buuuut they said NOPE 'cause of TOD...so i guess if i didnt want TOD i could do it. maybe they got somethin in japan for taht...'cause i've seen vx with manual...the rally ones i think. now THAT would be much more fun =)

With the interceptor installed I ran a lot better! My best time was 16.6, but all my runs tended to be better than before. My reaction times really improved, down to the .500's about 60% of the time, lowest being .509. I ran a lot more consistant every run and actually picked up another 2nd place trophy. Well this weekend I think that I will put the 18's on and see how I do. I hope to see 16.1 so we'll see. It's wierd being the only one out at the track with mud tires on, but man do a lot of people look at it out there, I probobally get about 20 people that come up to ask what it is. I just got my SC in the mail and will install in about 3 weeks JFYI.

Until Sunday.. late

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Originally posted by AlaskaVX
With the interceptor installed I ran a lot better! My best time was 16.6

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What am I missing? Your very first run, before any mods, was 16.7, right? So 16.6 sounds like the same time (basically). I've never run drag so I'm not sure if I'm just being an idiot on this ;)

No your right it's awefully close, but on the day that I ran the 16.7 records were broke so it was a great day for racing. I think that I could really pump up the line pressure to do better but I don't want to break anything. But with the interceptor I could definately notice that all the times that I ran I did better than usual. I think I only ran 1-17 sec. 1/4 compared to the usual 4-5 17's. These mods have not done much but I believe with the SC these mods do a lot more.

.1 is more than ya think on the track

yes it is =)

Removing 100 lbs. of vehicle weight will yield .1 sec decrease in E.T.

What were the trap speeds?

Went out to the track again this Sunday with the stock tires back on. I was thinking that it would cut a lot of time off but it was only a .1+ difference. My best run was 16.504. It was an import racing day and I entered in their main import race and made it to the semi-finals which is where I red lighted (bummer). But I still got $25 back out of the $35 I spent to race. 2 more weeks until the SC is installed!

Not sure what you mean by trap speeds, I finish @ 80+mph and reach the 1/8 mile at 66+mph

You may need to pep up the VX like this guy did for improved times....

http://fasttrackperformance.com/page.../ChrisTTGN.wmv


:D

Wow! Must be nice.... and boxer staining.

Okay, been doing some research because this intrigues me. I ask because I'm on the fence about buying this from Tone and your numbers totally run contrary to the "at least 15 hp" claim.

I'm going to assume a base weight of 4250 lbs (vehicle + you + gas, fluids, etc), which would mean your 16.7 e.t. converts to a rear-wheel HP rating of ~ 180 hp. If you dropped the time to 16.6 seconds, that means HP of ~ 184 hp, a 4 hp increase from adding the muffler and interceptor. Does that look right? I know this isn't completely accurate, as your vehicle wasn't weighed at both races, and the e.t. method isn't exact.

15 hp would mean running about a 16.3 e.t. under similar conditions, and you didn't gain even a tenth with just the muffler installed, right?

OK, I was running these times with mud tires and probobally an extra 150-250lbs in there also. Also it was not the same outside temp etc. Like mentioned before the first time I ran records were broke so it was a good day for racing. But about the "at least 15 hp" claim I don't really think so (but it sounds mean going down the track WOT). The interceptor could be used more efficiantly on the track by turning up line preasure, but I wanted to see the everyday driving change. The Supercharger is getting installed tommorrow, I'm sure that will make a differance ;)

Very cool - who'd you find to install it?

A company called Northern 4x4. They are the same people who did Boarzheads 6" lift. They have one of the lowest labor rates in town so I went to them. They quoted me $621 for the install. I'm sure the price will probobally rise a little when I go to pay for it.

Had mine installed by a place in the Dallas, TX area. Quoted $600. Final price came out to $725 after having to replace a few items.

Thats what I am expecting

It's a lot of money... but it won't matter the first time you test drive it with the SC installed... mash on the petal and zooooooooooooooooooooommmmmmmmmmm...!

I'm so anxious, :freek: I cant wait :clap: :clap: :thumbup: :D :jump:

(crossing fingers and holding breath)

What would be great, is if you were on the track with some of the people you ran against previously... just to see their faces when you do a good bit better than last time...

I can't believe it! All this anticipation for yet another let down! So the shop Northern 4x4 ordered my o-rings from my local Isuzu shop and guess what.... The dealership ordered 1 o-ring and tried to charge the shop $18.75 for it. The shop was like "So what about the other 5 o-rings", Isuzu replied "what 5 others, you only ordered one" The shop called BS and sure enough Isuzu looked back at their records and saw an order of 6 injector o-rings. Now the rings are supposedley on next day air to the dealership, shipping being paid for by Isuzu.

I want my VX! I went and paid it a visit in the shop and they put a chrome Alpine developments plate over the top of the SC and it looks pretty good. I just can't wait to get my VX back! :freek:

If you end up needing parts again, call St Charles and let them ship to your shop. Free shipping and the best price in the world :)

Well, went out to the track. I only got 2 runs in before it was rained out, and the results were, well kinda disapointing. I ran a 16.1. The Supercharger really makes it feel faster, but the gearing of the VX just won't let you go much faster. I bet that I will see a 15.8 next time after I get a few runs in. The superchartger gives it a lot more power which will be excellent on the offroad, it helps with the passing on the highway, the jump off the line, and it just feels a lot better driving (more power all the time) But the 1/4 mile gearing is just not there. I tried to adjust the interceptor to do better but with little effect. Oh well, I thought I would be running 14's at least, along with everyone else that has ridden in my car. But 3rd and 4th gears are sluggish in the 1/4. I was going 67 mph at the 1/8 and 87 mph at the 1/4.

Ah man, that's a bummer. Maybe the computer needs to get used to the SC?

Anyway, I'm sure you had the nicest SUV on the track!
It must be fun to kick it down without getting a speeding ticket.
Congrats on your new SC.

Go to Canada and get some 105 Octane ;-)

Michael

I thought the Interceptor was suposed to dramatically help with quarter mile track times??? do some fine tuning man....I knowyou can adjust it to do better!!!

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Originally posted by BlackVX
Ah man, that's a bummer. Maybe the computer needs to get used to the SC?

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Ya I thought the comuter needed to get used to it, but I have had it on for about 2 weeks now so I believe it should be used to it. Oh well, its still a ton of fun driving!

Quote:

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Anyway, I'm sure you had the nicest SUV on the track!
It must be fun to kick it down without getting a speeding ticket.
Congrats on your new SC.

Go to Canada and get some 105 Octane ;-)

Michael

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The track just started carrying race gas at 104, 108, and 112 octane, whats the highest I could use, and still drive back to town on, any ideas? And hell ya its the nicest SUV on the track, in fact it is the ONLY one brave enough to be racing. Its funny, I race all sooped up muscle cars, and still come home with trophys! I love bracket racing :D

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Originally posted by AlaskaVX
The track just started carrying race gas at 104, 108, and 112 octane, whats the highest I could use, and still drive back to town on, any ideas?

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Go as high as you want, it won't hurt anything.