I hate cars

You don't want to lower the pressure on regular radials. Even on drag radials I would only go down to the low 20s and they were made for that. On street tire, you should already by at the optimal psi when you arrive to the track.

Some tracks don't allow icing down the IM. It can make life hard for the high power RWD cars that run after you.

veggiemonster

iTrader: (1)

they won't let you ice in the staging lanes? not the staging area on the strip, the parking lot waiting queue

I'm only saying instead of 32 on street tires to drop down to 28ish. just enough to get some 'bulge' in the sidewall to soften them.

1.8's should be totally do-able in a TL.

I hate cars

Bulge does no good on a radial because they're still never going to wrinkle and any flattening will be counteracted by the severe loss of contact patch when the center is doing nothing. I understand a very small pressure drop but I see guys on stiff sidewall tires with what looks like 15psi in them. A 1.8 in a TL would be nice but it will only be done on a drag radial at minimum. I don't understand why more people don't use them though. You have half a second on the table in the form of tires but instead people spend thousands on engine mods that will never get the same gains. One of my favorite things on the street was being able to shut down just about anything out there in a quick first and second gear pull including AWD cars. Fighting for traction and just barely hooking up by the time you have to hit the brakes is no fun.

veggiemonster

iTrader: (1)

I'm talking about street tires. A 1.8 really does not need a radial...good summers will do that for you.

I personally would never run a radial, ripple or not, without a built drivetrain.

Xander_Kin

I hate cars - Please clear your PMs. I really need your help / opinion regarding my 06 tl AT issue. I tried to PM you but apparently your box is full. Thank you.

bouncer07

For street tires I tend to raise my PSI, I get better Trap speed than if I lowered them. Different story for DR and Slicks.

anx1300c

iTrader: (2)

LOL, not in this car. Hasn't been done by anyone on here yet. In fact, 2.10-2.15 is the best anyone has done on street tires in a 6MT.

I hate cars

A 1.8 60' is hard to do in a RWD car with lots of practice and a very good summer tire. In the TL it's going to require a drag radial at a minimum if not an even more aggressive tire. No chance of it ever happening on summer tires.... well maybe in reverse it would have a good shot. 1.6 feels very fast, 1.5 and the steering wheel is nearly useless.

Summer tires are radials. The term "Drag Radial" was coined by BFG for their drag racing but street friendly radials. Generally, wrinkle walls are bias ply and I've been pulled over for suspected DUI because the rear end wanders so bad. Drag radials are much better than any summer tire or even R compound road race tire but they have a stiff enough sidewall for good street manners since they're a radial.

You have to look at the big picture. Adding traction increases driveline stress but wheelhop is almost always worse. If you can eliminate wheelhop by increasing traction, you definitely haven't made the car less reliable. It's all in the launch. Learn the clutch well and you can have good launches without destroying parts up to a point. You don't even have to do 7k rpm clutch drops, just a slightly aggressive start and being able to go to full throttle in first gear is a huge advantage over most 6mt TLs.

veggiemonster

iTrader: (1)

well yeah. all tires are radials now. but most people only call drag radials radials. splitting hairs there.

I wish I had brought mine to the track before wrecking it. I could launch mine without bog or spin easily without VHT, and it wasn't bad at all. In my old car, with an open diff, 1.95's all day. And I'm not 17 anymore.

I guess it is speculation on my part. But it's not my first rodeo. I have yet to have a 130 trap car, but did own a 120 trap car.

Sonnick

^ You're not comparing the FWD TL to your AWD S4 are you?

Below is a video of me launching on the street with a broken front motor mount and all season 215/55s. I pulled the stopwatch out and got 5.6-5.8 each time. Not awesome considering my mods, but not bad with a broken mount on less than desirable street tires. Should be good for a low 2.2 60' I'd imagine?

anx1300c

iTrader: (2)

You've been running 215's all this time? Damn, they're really hurting your traction. Especially with no LSD!

Sonnick

Yea, tell me about it. My stock wheels are only 6.5" lol so I don't have much choice. Widest I can go is 225s. When I need new tires next season I'm going to go back to my 225/45 setup. Should help my acceleration as well with the shorter tire.

06NH6MTTL

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I have been working on port and polishing a set of runners i purchased from 3gstealth and will be installing them around Tuesday. Also, i have koni yellow (front) and tokico hp(rear) coming in so i cant wait to go back out and get a new best time!!!!

NvrDwn

Seems a little slower than it should be to me.

Sonnick

Let us know how your mods turn out. Don't expect much from the runners themselves though, especially since you're pretty much stock.

06NH6MTTL

iTrader: (1)

lol i should have seen ^ this post before i got my hopes up but i guess now when i do other mods there will be greater gains!!!!!

06NH6MTTL

iTrader: (1)

Alright time for some updates!!!!! I have been real busy lately and and have done a few mods to the car since my last outing at the track!

Last night it was consistently between 53 and 55 degrees which helped a lot also i had my backseat, spare tire assembly, glove box plate and the trunk damper removed.

Mods that were added are... Ralco lightweight pulley, port and polished runners, Gutted the third cat with stock j pipe and installed koni yellows up front and tokico hp blue's in the rear!

Old vs New
R/T .265 R/T .263
60' 2.290 60' 2.354
1/8 9.495 1/8 9.295
MPH 76.82 MPH 80.74
1/4 14.544 1/4 14.157
MPH 97.59 MPH 101.14

Next mods up are 255-40-17 Continental DW tires and V3 Precats

Next week Wednesday me and justin(3gstealth) are heading back to the dyno to gets some numbers to back up these amazing times!

3gstealth

iTrader: (2)

Time to change the thread title to "Happy about 1/4 mile time" TLs were running strong last night!

socal3

V3 Precats might be all you need to get into the 13's great time's and progress.

Sonnick

Nice run! Way better than previously. If you want the best comparison, check the DA calculator for the track you were on and just enter the time/date you were there for both before/after passes. That will give you the most 'accurate' comparison.

With that said, you demolished your previous ET/traps. Great job. Cool, dry air FTW!

Btw, you're only a better 60' away from 13s in the same conditions

06NH6MTTL

iTrader: (1)

^ i know i could taste 13's last night but i was literally rolling out at 1500 rpm so i didn't spin or catch wheel hop but tires will solve that

k3silk

This might just be me but what did you really expect to run? It's not like these cara are known for being fast. Even if you put some money into them there still heavy an dont have much power.

06NH6MTTL

iTrader: (1)

This is a funny post and i am glad you made your third noob post here!

If we all thought like this there wouldn't be a tl section here on Acurazine..... its not a (10 sec car) but its far from being a slow car

my car in almost stock form beat a 300hp sti (from a roll) but a win is a win! i would love to race a stock 6mt tl or 6mt tls to prove the gains i have made and i haven't done any of the major power mods yet.

Point i am making with my rant is if you own a tl and you feel you want to troll() in my post because yours is slow then spend some money, drop some weight and hit the track!!!!! NUFF SAID

anx1300c

iTrader: (2)

He doesn't need to spend another dime to hit 13's, just a better 60', which can be done on his current tires.


Nice job, 06NH6MTTL!

06NH6MTTL

iTrader: (1)

Thanks anx, I just got these installed yesterday! 255-40-17 FTW
http://www.tirerack.com/tires/tires....omCompare1=yes
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Sonnick

^ When did you get dyno'd? Those are some good numbers for the mods you have. What are your mods again? Lol. CAI/Runners/Pulley? That's it?

anx1300c

iTrader: (2)

I know. I have full bolt ons and only hit 100.7 mph on an upper 50's/low 60's day. My engine must have been built on January 2nd by some hung over robots or something.

Oh well, with my lighter wheel and tire setup, a Braille battery and with the 3.7 swap, I should hit 102 pretty easily. Gonna need at least cams to catch you Sonnick.

Sonnick

^ Remember, I still have the 3.7 setup and a custom merge collector to 3" exhaust on top of your mods. I really think the collector/3" helped a good bit as well. Some tracks are just 'faster' than others also. I believe the East Coast tracks are among the fastest in the country. Lucky me lol. I still have to do the slave cylinder mod though

The key to the highest trap is shifting just before the rev limiter in each gear. 3rd gear is the most important though, since it's near the end of the track. Even shifting 200RPM too soon could adversely affect trap speed.

anx1300c

iTrader: (2)

People at Esta do say they run quicker at other tracks. Biggest issue is the fact the track hasn't been paved in forever and the first 60' is all bumpy. Can really see it when the bikes with wheelie bars start to pogo. They still have the original timing trees from the 50's. Best I can get so far is 2.24 and I know to work a clutch! Only problem is, my best 60's are in 75 degree weather, so it's a Catch 22, since the car is slower overall. Gotta try Lebanon Valley in the spring.

And yeah, a 6MT TL with your exact same mods should be able to match your traps or at least come close. I think the 3.2 has enough extra torque to offset the extra weight. I have thought about swapping to PCD's and doing a custom exhaust but can't bring myself to do it. No rasp, no smell, not overly loud and minimal drone. I'm gonna do the cams instead.

Sonnick

Yea, Juam trapped 104 in his Type S with bolt ons/port work and put down 300/26x I think.

Cams will be a great mod, especially after the 3.7 setup. I'd assume you would gain a solid 20-25whp up top after a tune. If you do, for the love of God get a before/after dyno lol. You could always do a cutout as well

OP: What's next?

06NH6MTTL

iTrader: (1)

I dynoed with Cai being my only real power adder but that's because i spent all my money up front putting the power to the wheels!
(Mounts,Damper,Short shifter+bushings,PCI LCA bushings,clutch,flywheel and ultimate cooling mod) numbers are in sig

I still want to dyno before i do anything else to see what kind of power it took to do 101 trap!!

Also i may be getting v3 precats at the beginning of December
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Sonnick

You put down 251 SAE corrected with just a CAI? Lolwut?

06NH6MTTL

iTrader: (1)

Ya i mean it was on a dyno jet and it was a fourth gear pull i made more power that day than a 03 6 speed g35

also, justin(3gstealth) runs his car on there and it seems pretty accurate


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Sonnick

Hmm....you put down more power than Justin with just a CAI? That just seems really odd. 251 is way high for just a CAI....like 10-12% too high. Should be more around 230-235. But hey, your trap speed is damn good and that shows you are putting down power. Maybe the UCM helped with lower ambient temps on the dyno?

Do you recall the DA (density altitude) the day you went to the track? What day/track/time did you go?

06NH6MTTL

iTrader: (1)

Sounds like i have a Factory Freak and the DA calculator said
14.143 @ 100.734 MPH

alexSU

iTrader: (3)

Trap speed is blazing! I can't imagine what you'll hit with precats, exhaust and the check valve mod!

Sonnick

Keep up the good driving.

06NH6MTTL

iTrader: (1)

^ Will do and 106 trap now that's impressive!!!!

06NH6MTTL

iTrader: (1)

I tried to remove my check valve but could not get the cap out but when i re-installed everything it worked so i think i busted the check valve inside

anx1300c

iTrader: (2)

That check valve was a PITA to remove.