Hey everyone, I just got done putting on some basic bolt-ons for my LNF and was just wondering what it's going to take to hit low 13's to high 12's on 1/4 mile run. As of right now I have a CAI(AEM air filter) with hot side charge pipe(with HKS BOV) from dejon, and MPX 3 inch whole exhaust system(catted due to CA smog regulations). I am planning to get a Trifecta tune (22psi) soon but not sure which Psi is best and which rpm is best for launch(on stock street tires). I would like to know what else should I do to hit low 13's or high 12's on 1/4 mile time. Any help and advice would greatly be appreciated. Thanks in advance. Also, let's try our best to keep this thread positive because I am new myself and need extra patience from everyone in order to learn more about our cars.

 

Driver mod for sure. Running the car for the first time isn't the easiest thing in the world. It'll take practice and a good bit of patience. To get into the 12s, you can easily run E if it is near you and slick will definitely help you.

Lowest I ran on street tires was 13.2@107 with K&N SRI, ZZP Catless DP, Trifecta 23 psi tune, and Injen charge pipes on 93.

 

You're gonna have a lot of trouble doing that on street tires unless you are a great driver best bet is to get a spare set of rims with a drag radials or slicks bump that up to 23 or 24 PSI and learn to drive its a front wheel drive car most of your time is going to be gained or lost at the start

 

I was running 15psi on my cheater slicks. Then again i only hit 13.9 so far on a pretty much full bilton lsj driver mod > me

 

Honestly the biggest thing about getting good times is getting to know the car and how it takes off. Driver mod for sure is the best thing you can do. You can have a 9 second car but if you cat drive it you won't be pulling off the 9seconds.

 

Yeah I did a 13.2 @ 109 with a tune and downpipe on some terrible tires on my old LNF.

 

Nice, I'll settle for low 13's. LOL I live in Fresno, CA and the highest grade we have is 91. I have almost the same set-up as you. Just missing the Tune basically. However, I think I will have it at 22Psi instead just to be a little safer. LOL It would be nice to go cat-less but too bad because I live in CA. Do you think I'll be able to hit 13.3 after I get tuned? Also, where do u launch at? Do you slowly let the clutch go or so you just dump it? I usually launch around 2300-2500 and just dump the clutch. Still get wheel spin and torque steer but if I launch lower it usually bogg's down on me. My tire psi are front:34psi, back 35psi.

 

Thanks but this is going to be my daily driver so that's why I want to stick to street tires. I probably won't even take it to the track (2 1/2 hr drive). I heard about street slicks. Will those improve acceleration time and be able to serve as daily driven tires?

 

Trifecta tunes are perfectly fine for 23-24psi. You'll be fine with running that. I normally slip the clutch at 2200-2500 rpms. You're definitely going to have to let out quite a bit of air in your front tires and throw about 10 more lbs in the rear than your normally do to reduce squatting. Either that or run footballs in the rear. That's your choice though. You can a ton of things, but getting to know the car is the best thing you can do.

 

Sorry but I have the LNF. However, I ran against a stage 3 LSJ from the roll at 40mph and he got me by 1 and a half car. He refused to run me from the dig because he said he couldn't catch traction because he hasn't had the new clutch in yet. I ran him when I was bone stock. Did not have any of the Mods I mentioned earlier. I know the Mods can't really do anything until I get the ECM tuned for it but I seriously do feel a difference after I got my Mods in. I actually saw a spike of 290 hp in 2nd gear using the digital box meter thing(whatever it's called). However, that was short-lived and dropped to 250ish when approaching redline. I do feel more glued to my seat however after I got my bolt-ons in. My turbo spools faster and feels a little faster. Still 15-18 psi only though. No surprise there. LOL Haven't seen the stage 3 s/c since. I would love to run him again with my bolt-on's (untunned) and see if it really made a difference or not. LOL

 

This sounds foolish of me to question you but I've read an article about our k04 turbo's and it stated that if you go past 21.5 psi then you will get out of the efficiency range due to the size of our small turbo's (also used in VW). Also, I don't want the most aggressive tune. This is my daily driver so I would like an aggressive tune but I don't want to risk too much reliability because if anything breaks then I'll be carless for a while. LOL Also, for the tune, is it better to have it with the traction control option or the cruise control option? I've heard different stories. LOL

 

No doubt about that! LOL tell me what's the best way to launch. Which rpm and do I just dump the clutch or slowly let it go?

 

Sounds impossible! LOL u still got the slip? Also, were u catless? Where did you launch? Did u just dumped the clutch?

 

You can look in the classifieds and usually find a spare set of rim just for the front for pretty cheap sometimes they even have drag radial or slicks on them you can lower the seat put both tires in the back and change them at the track in 20 minutes while having beer and letting the car cool or you can shell out 1000+ for a good set of nitto or michilen or some other high dollar street tires that will give great grip but will only last 10 -15 thousand miles

 

Around 23-24 psi is the most edifice t ad is perfectly fine. You really won't be going aggressive if you end up going with trifecta. I daily drive mine 7-8 months out of the year and I was tuned and didn't run into any problems really. I had my car tuned through the traction control button cause I use my cruise control a ton and indefinitely didn't want tuned during a time I wasn't really in control of the throttle.

Best way to launch the car is 2200-2500 and slipping the clutch. It sucks and is kind of harsh on the car, but its something you gotta do. Once you're tuned for a bit you're clutch will **** the bed pretty fast though.

 

Good point. Hands down...

 

I think the VW uses a KO 3 turbo we can safely run 24 to 25 PSI out of the KO 4 and if you're using trifecta you should look into a selectable tune so you can run a much more aggressive tune and a much less aggressive tune

 

Nah, it was a few years back. I don't lie though. It moved for sure. Catless yes. You don't just dump the clutch unless you want to wheel hop and break ****. You have to feel out slipping the clutch a little and the traction you have while throttling

 

Hmmm, now I'm considering going 23psi tune. LOL when I get in touch with Trifecta I'll ask what they recommend. I want a reliable car that will smoke most ricers. LOL believe it or not, I lost to a single cam turbo civic! He's a friend of mine and is making 190 hp. He has street slicks and took me by about 2 and a half to 3 car lengths. He obviously took me from the start and pulled all the way. It wasn't until 4th gear that I started creeping up. We were well into triple digit numbers and decided to slow down. LOL I felt ashamed. LOL

 

I'm a total NOOB! Please explain to me how to do it! LOL Teach me the secret! So I should rev it to 2300-2500 and then slowly let off the clutch while flooring the gas pedal? LOL When should I let off the clutch completely and how fast should I be done doing it? Thanks!

 

Honestly you just have to go out and do it, I cant tell you from over the computer hah. Practice on a closed road or something at different intervals of RPM, clutch slip, power.

 

Wait, wait, wait, what? You can select two tunes? So if I get Trifecta tune (which I will LOL), I can have both an aggressive tune and a mild one?

 

closed road? I always just drive out into the country roads where there's nothing but farmland for miles and have fun all day! Anyways, so I would basically have it in comp mode and test out different intervals of rpm's correct? So when I launch it around 2300-2500, you want me to NOT dump the clutch right? Instead, I should slowly let up on the clutch and keep the gas pedal DOWN until I feel it is gripping enough to let off the clutch? Wouldn't that make the car do burnouts? LOL well if I have the e-brake on. See, told you guys I'm a total noob. THis is my first stick shift car btw.

 

What do u guys think? Will I be able to hit low 13's(13.3) for quarter mile time if I add a tune (Trifecta 23psi) and get my launch down right? I'm not trying to spend any more money because like I said, this is my daily driver and I want to go fast, but not all out because I don't want to be car less. LOL Thanks for all the tips so far!

 

Yep can use either traction control button or cruise control to select between tunes