Official IS-F Drag Time/Dyno Time/Performance Thread
#256
Lead Lap
iTrader: (1)
Just came back from the track, and have my results. The car is a 2008 ISF. Only mods are 2010 differential with LSD and ET Streets. My 60's were dissapointing even with the street slicks. Two runs worth noting:
R/T ... .414
60' ... 2.094
330 .... 5.614
1/8 ... 8.481
MPH ... 85.30
1000 ... 10.911
1/4" ... 12.935
MPH ... 114.18
R/T ... .745
60' ... 2.020
330 ... 5.503
1/8 .... 8.352
MPH ... 85.91
1000 ... 10.773
1/4 ... 12.793
MPH ... 113.59
R/T ... .414
60' ... 2.094
330 .... 5.614
1/8 ... 8.481
MPH ... 85.30
1000 ... 10.911
1/4" ... 12.935
MPH ... 114.18
R/T ... .745
60' ... 2.020
330 ... 5.503
1/8 .... 8.352
MPH ... 85.91
1000 ... 10.773
1/4 ... 12.793
MPH ... 113.59
#258
Lexus Test Driver
this was my best run from a weeks ago. Im pretty happy with it seeing as it was 83 degrees out. Does my torque curve look really flat to you all??
Last edited by zapa; 10-07-12 at 06:16 PM.
#260
Just came back from the track, and have my results. The car is a 2008 ISF. Only mods are 2010 differential with LSD and ET Streets. My 60's were dissapointing even with the street slicks. Two runs worth noting:
R/T ... .414
60' ... 2.094
330 .... 5.614
1/8 ... 8.481
MPH ... 85.30
1000 ... 10.911
1/4" ... 12.935
MPH ... 114.18
R/T ... .745
60' ... 2.020
330 ... 5.503
1/8 .... 8.352
MPH ... 85.91
1000 ... 10.773
1/4 ... 12.793
MPH ... 113.59
R/T ... .414
60' ... 2.094
330 .... 5.614
1/8 ... 8.481
MPH ... 85.30
1000 ... 10.911
1/4" ... 12.935
MPH ... 114.18
R/T ... .745
60' ... 2.020
330 ... 5.503
1/8 .... 8.352
MPH ... 85.91
1000 ... 10.773
1/4 ... 12.793
MPH ... 113.59
BTW, I went to the track today to see if the Borla catback and 20 lb lighter rotors were going to help or not. I did have 1/3 tank (in my PB runs, I was 0 miles to empty). I was only allowed two runs and I didn't get a chance to REALLY run it hard because they kicked me off the track today.
My two runs:
1.890 1.874
8.044 7.994
90.3 mph 90.63 mph
12.387 12.321
113.12 113.55
They kicked me out because they said I was spraying tranny fluid all over the track but they got the wrong car. Right after me was a black Cavalier that his tranny dipstick fell off during the run. The track guy even gave me the dipstick - I told him I don't have a dipstick for my tranny. Then he checked under my car and saw my exhaust smoking and said that I must be dripping oil on my exhaust hence the smoking. I told him I JUST got the exhaust installed 2 days ago and that it's the oil and the anti-seize compound burning off. Either way, they wouldn't let me run.
I got to a lift with a Lexus master tech and we found no leaks.
Oh well, I got what I needed from the two runs though. 2 years ago in November when I ran 12.3@115 I had a tailwind of about 5-10 mph and today I had a 5 mph headwind. It was also 30.4 inches Hg and today was only 30.1 Also, that day I ran like 20 runs. Today I only had 2 runs and the two lousy runs with 1/3 tank was pretty much equivalent to my record runs with the better DA. So, from that, I surmise that the Borla exhaust and lighter brake rotors are probably a tenth or two faster than stock.
I was hoping to hit 12.1x today and I think I would have but not with the headwind, 1/3 tank, and being kicked out. LOL
In the next couple of weeks, I'm getting headers installed (just waiting for 1 gasket) and reducing weight further with some coilovers. After I break into the 11s - possibly challenge caymandive's all motor record, I'm done drag racing until I get some lightweight black alcantara carbon fiber front seats LOL.
Oh, BTW, in case you guys want to know my mods: Borla catback, Figs 2 piece rotors, 18" RE30 rims with MT 245 40 18 drag radials, took out the spare and tools and engine cover, and lightweight battery. I don't have an intake or JOE Z pipe. I already tried the K&N intake system and took it out because it didn't give me any performance gains.
45-48 degrees, 30.1 Inches Hg, unfortunately I didn't get an accurate dew point but I think it was like 32. It was definitely a good DA day.
Last edited by ToothDoc; 10-07-12 at 06:38 PM.
#261
Moderator
iTrader: (3)
ToothDoc: Yeah, you could definitely get in the low 12.2s with that setup and the right track conditions. Maybe even 12.1s, which is pretty amazing with basically just an exhaust, lighter wheels and drag radials.
So, was your previous 12.3@115 bone stock with DRs (since you said you just got an exhaust)? That is quiiiick.
So, was your previous 12.3@115 bone stock with DRs (since you said you just got an exhaust)? That is quiiiick.
#262
ToothDoc: Yeah, you could definitely get in the low 12.2s with that setup and the right track conditions. Maybe even 12.1s, which is pretty amazing with basically just an exhaust, lighter wheels and drag radials.
So, was your previous 12.3@115 bone stock with DRs (since you said you just got an exhaust)? That is quiiiick.
So, was your previous 12.3@115 bone stock with DRs (since you said you just got an exhaust)? That is quiiiick.
Last edited by ToothDoc; 10-07-12 at 07:42 PM.
#264
Awesome dyno. The reason I don't put my dyno up is that mine only read like 270 HP. Obviously the dyno I was at was not calibrated correctly. LOL BTW, no headers?
#265
Lexus Test Driver
Ya i dont think 270 whp is correct. Especially with the times you have thrown down. I have the JOEz PPE combo going on. Its amazing. VBB can attest to its greatness
#266
Because I don't have problems hooking up and it's slightly smaller diameter than stock and it's lighter than 285s so I'm actually running faster. I honestly think most IS-F (except 500+ hp on NOS) should be using the 245s. WIth the street radials, we don't get that wrinkled sidewall effect like real drag radials so using the lightest, smallest, tires will give us the best results. Even at stock PSI (37 psi) I manage 1.8xx 60' with no spin at all. I'm actually thinking that going down to 20 psi might give me a "smaller" tire and shoot me out of the hole a little quicker. I'll try that next time.
#267
Lexus Test Driver
Because I don't have problems hooking up and it's slightly smaller diameter than stock and it's lighter than 285s so I'm actually running faster. I honestly think most IS-F (except 500+ hp on NOS) should be using the 245s. WIth the street radials, we don't get that wrinkled sidewall effect like real drag radials so using the lightest, smallest, tires will give us the best results. Even at stock PSI (37 psi) I manage 1.8xx 60' with no spin at all. I'm actually thinking that going down to 20 psi might give me a "smaller" tire and shoot me out of the hole a little quicker. I'll try that next time.
#268
11 Second Club
iTrader: (2)
Btw Zapa do you have an "SAE" corrected version of your graph above?
Last edited by caymandive; 10-07-12 at 08:29 PM.