Members Best 1/4 mile Times

[DRE]

578whp and 471 ftq...

[sushtsi]

[QUOTE=DRE;257318]well just got back from the track today ...made two passe ...first one on street tires 11.69 @127mph ...second one on street radials (bfg)10.74@132
i was happy to see the # with the new tune ...too bad i dont get to run C16 on the street...

[QUOTE]

Damn!!

How much whp you pushing?

[DRE]

well just got back from the track today ...made two passe ...first one on street tires 11.69 @127mph ...second one on street radials (bfg)10.74@132
i was happy to see the # with the new tune ...too bad i dont get to run C16 on the street...

[DRE]

well went to the track ...finnally got a few passes ...with shitty 60 foots 1.85
on street tires managed a 12.1 @115mph

not sure how hard to lauch ...i was lauching with my 2 step @7000rpm
how hard should i be leaving ...tires are bfg kdw

[GTR--J]

DA = density altitude

Basically a correction factor for race tracks. If the actual elevation is 4000 feet but it is cool out with very dense air it might have a density altitude (DA) of 2500 feet. This means that the track with an actual elevation of 4000 feet would give you similar results to a track at 2500 feet at SATP conditions.

I still feel 108 is a low trap, a friend of mine here is hitting 108-110 MPH in his GTR with stock turbos, apex'i catback, decat, apex'i air intakes, PFC, and running at 1.0 bar.

TD-05-16 G's in stock housings aren't that much bigger than stock turbo's,maybe 300 hp each.I was only running 1 psi more than your friend.We were 67Ft. above sea level and 18 celcius.I have to agree with you though 108 MPH is too low. With my current mods under way I would like 12.0 and 120 mph....after I rebuild my trans from this event

[tokes]

DA = density altitude

Basically a correction factor for race tracks. If the actual elevation is 4000 feet but it is cool out with very dense air it might have a density altitude (DA) of 2500 feet. This means that the track with an actual elevation of 4000 feet would give you similar results to a track at 2500 feet at SATP conditions.

I still feel 108 is a low trap, a friend of mine here is hitting 108-110 MPH in his GTR with stock turbos, apex'i catback, decat, apex'i air intakes, PFC, and running at 1.0 bar.

[GTR--J]

108 MPH seems like a very low trap speed for 1.15 bar on upgraded turbos. What was the DA when you were racing?

I don't think it's very low...the other guy in his GTR with boost problems did a 12.1 @ 116 mph and a 1.9 60 ft.What is "DA" anyways?
The power output of the car is under 400 hp.When boost is at 1.2 and 1.3 it is a huge difference in power,but I had stock injectors and I wanted to drive the car home.

[mcfly]

I finally got the car done the first stage of engine work and got to run it at TMP (Toronto Motorsport Park)

R/T: .081
60' : 1.858
330: 5.150
1/8: 7.978
MPH: 87.63
1000:10.376
1/4: 12.418
MPH: 110.34

i don't think that's too bad. PM me your guys thoughts on any improvements that you might see.

You are missing some top end power, or mid range.
Somewhere anyways.

or you have weak slow shifts.
60' and trap is good for a 12.1 anyday

[tokes]

108 MPH seems like a very low trap speed for 1.15 bar on upgraded turbos. What was the DA when you were racing?

[GTR--J]

I knew this thread was around here somewhere...
boost @1.15 bar
reaction----.649
60 ft.-------1.919
1/4 ET------12.755
1/4 MPH-----108.89


reaction-----.496
60ft--------1.835
1/4 ET------12.82
1/4 MPH-----108.08

[hamiltonr32]

I finally got the car done the first stage of engine work and got to run it at TMP (Toronto Motorsport Park)

R/T: .081
60' : 1.858
330: 5.150
1/8: 7.978
MPH: 87.63
1000:10.376
1/4: 12.418
MPH: 110.34

i don't think that's too bad. PM me your guys thoughts on any improvements that you might see.

[kAsp]

Thanks man, What kind of other tires can I use which will give me more traction??

fours beautiful little slicks:P

[mcfly]

got a few runs in last night at Cayuga. My fifth (last) run of the night was the best.

R/T ... .276
60' ... 2.175
1/4 ... 14.452
MPH ... 96.05

Gtst typeM with mods:

- 3" turbo back
- Blitz FMIC
- Splitfire coils
- Megan Shortshifter
- Potenza RE070

I believe i can still shave a few tenths off...

get that 60' down and you sure will

[Subaueru]

got a few runs in last night at Cayuga. My fifth (last) run of the night was the best.

R/T ... .276
60' ... 2.175
1/4 ... 14.452
MPH ... 96.05

Gtst typeM with mods:

- 3" turbo back
- Blitz FMIC
- Splitfire coils
- Megan Shortshifter
- Potenza RE070

I believe i can still shave a few tenths off...

[Speeddm]

find a nice quiet clean piece of road. pull your fuse and do a small hard launch. Maybe 5 ft of rubber. THen go back and analize your patch. Looking at on tire mark do you see 2 thin dark strips (not enough air preasure) Full tire tread width but very dark in the mid (to much Air) (dont pay attention to the dust that is not embeded in the pavement)What you want is a nice eaven colouration. Then you will be using all your tire for transfering power. If you are running a slick you will need to do a larger burnout to acomidate tire expansion. Now keep inmind A DOT street tire is formulated to hock and work best when clean and standard operating temp. So doing a burnout with a standard tire is counter productive. (but it looks cool) THe rubber formulation in a slick set stickier when heated.
Thats how its done.
If you watch serious drag racers who look for every advantage we will have a crew member look at the burnout area at the track the car leaves. I also use my Laser Pyrometer to determin tem in thre spots on the tire outers and mid. You will see a temp spread across the tire. Even is best.

Hope this helps.