Finally made to the track
Originally Posted by robertrinaustin
You're confusing your situation with his. Please understand that I am in no way saying that you can't run higher mph with slower 60 ft times. Clearly this is possible and happens frequently. I have 3 time slips that show a higher mph with a quicker et and 60 ft. This doesn't make me right any more than your time slips make you right.
Think about it. He eases the launch. Clearly, a harder launch and he could improve his 60, 1/4 et and mph. We all did it as we learned to launch an awd car.
Think about it. He eases the launch. Clearly, a harder launch and he could improve his 60, 1/4 et and mph. We all did it as we learned to launch an awd car.
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Originally Posted by Warrtalon
Yes, clearly he could/would improve his 60' and ET with a harder launch, but his MPH won't suddenly go up from 105 to 110-112 where it should be. I'm still not convinced on the 1.9x 60' being such an "easy" launch. To get a 1.9x, he'd still have to be accelerating very quickly. Plus, you have to look at the details of the timeslip. He's getting to the 1/8th at almost 85mph, which isn't bad at all, but then he gains very little in the back 1/8th, which involves no driving/shifting, but just flooring it in 4th. This is where I see a problem that can't be resolved by a better 60'.
Is that where it should be given his tune? I don't know. I defer to those that have experience with similar cars at this track. I would also be curious to see what a race gas map would do. He could possibly add another 3 to 4 mph with more timing and boost. FWIW, that puts him around 110-112.
Last edited by robertrinaustin; Jun 8, 2005 at 11:03 PM.
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Originally Posted by Evo23IG
Well I had my Evo for more then a year now and I finally made to E-town. I am not really into drag racing, I just wanted to see what I can do. I had my car custom tuned by Shiv, which put down 331whp on a dynojet. I am running basically Vishnu Stage 1++. I made three runs and here is breakdown of my best run:
Temp: 87
Humidity: 57
60' ... 1.984
330 ... 5.558
1/8 ... 8.540
MPH ... 84.78
1000 ... 11.096
1/4 ... 13.218
MPH ... 105.18
Just to note I was not trying to launch the car hard. My best 60' was 1.984, in which I was quick slipping at about 3-4k rpm. I also added about 4 gallons 116 fuel to my 93 which I had about 3-4 gallons left in the tank (I was not running a race gas map). I just wanted to make sure the car ran cool.
Couple questions, how does my MPH look for my horsepower? I know that I could of cut a better 60' time but I really don't want to abuse the car. Also I think I could of shifted faster but it was pretty smooth all the way down the track. Overall I happy, the car ran well and I know if I practiced that I could ran in the 12s.
Temp: 87
Humidity: 57
60' ... 1.984
330 ... 5.558
1/8 ... 8.540
MPH ... 84.78
1000 ... 11.096
1/4 ... 13.218
MPH ... 105.18
Just to note I was not trying to launch the car hard. My best 60' was 1.984, in which I was quick slipping at about 3-4k rpm. I also added about 4 gallons 116 fuel to my 93 which I had about 3-4 gallons left in the tank (I was not running a race gas map). I just wanted to make sure the car ran cool.
Couple questions, how does my MPH look for my horsepower? I know that I could of cut a better 60' time but I really don't want to abuse the car. Also I think I could of shifted faster but it was pretty smooth all the way down the track. Overall I happy, the car ran well and I know if I practiced that I could ran in the 12s.
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Originally Posted by robertrinaustin
The slow 60 will hurt your traps. I rev to 5000 rpm and do a slow slip until the clutch grabs, then quickly slip it. I've got over 40k miles and probably 30 or so runs and no issues. I get 1.70s all the time. I would also look at a race gas map.
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Originally Posted by robertrinaustin
Sorry, but this is incorrect. Slow launch equals less mph at 60 and less at the end of the track. Think about it. Maybe you are thinking reaction time.
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Originally Posted by Warrtalon
Nah, a slow 60' (like 1.9) doesn't hurt your mph...in fact, you can sometimes get a higher mph, since a great launch lowers your ET, which gives you less time to reach higher mph before the finish line. It's counter-intuitive, but true. Think about FWD cars like the SRT-4. They spin like crazy en route to 2.4 60' times, then hit high mph, but if they throw on slicks, they cut half a second, but run a slower mph than before.
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Originally Posted by robertrinaustin
But this isn't a traction issue. This is about babying the car. I agree with your example above, but that isn't analogous to the discussion. If you ease into the launch, your mph will be lower. That is why imexperienced people improve 60 ft, 1/4 time and mph as they learn to launch their awd car. We've all seen it. I run 12.45 at 110 with the exact same mods that I ran 13.2 at 104 when I was learning to drag the EVO.
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Originally Posted by IE Evo
Yes two different things. Bogging = lower traps but spinning = higher.
This guy isn't spinning.
He launches at 3k.
Originally Posted by robertrinaustin
Better late than never. I was trying to correct the blanket statement that improving your 60 doesn't improve you trap. This is incorrect. It may improve, slow or keep your trap the same. There are many factors at work. I would be willing
This guy isn't spinning. He launches at 3k.
This guy isn't spinning.
He launches at 3k.
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Originally Posted by robertrinaustin
Better late than never. I was trying to correct the blanket statement that improving your 60 doesn't improve your trap. This is like some sort of drag racing urban myth. This is incorrect. It may improve, slow or keep your trap the same. There are many factors at work.
This guy isn't spinning. He launches at 3k.
This guy isn't spinning.
He launches at 3k.But I really feel that c-16 is not a good thing for this dudes car. I had a Vishnu 1+ that did 12.2-12.4 all day at 110-112mph. One time I used c-16(was not tuned for it) and my traps went down 3 mph and my Ets suffered immensely. Next time out used what it was tuned for and it ran consistent 12.2 at 111mph all day.
Last edited by IE Evo; Jun 9, 2005 at 10:34 AM.
Well I just spoke to Dustin from Vishnu and we came up with couple ideas. One it could be a boost leak or slow shifting but I kind of doubt it, I will check into the boost leak. The other idea is that it could be my APS Bov which causing my car to run rich during the shifts which would kill my midrange. Dustin suggested to change back to stock BOV. Also another thing I noted when I am shifting it doesn't seem I can't keep my turbo spooled, I am shifting pretty fast. I even had my cousin make pulls on my car and he was not really able to do to and he races his M3 and shifts very fast. It just seem everytime I would shift the car needs a split second to spool. I could also play with settings of my APS bov.
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Originally Posted by Evo23IG
Well I just spoke to Dustin from Vishnu and we came up with couple ideas. One it could be a boost leak or slow shifting but I kind of doubt it, I will check into the boost leak. The other idea is that it could be my APS Bov which causing my car to run rich during the shifts which would kill my midrange. Dustin suggested to change back to stock BOV. Also another thing I noted when I am shifting it doesn't seem I can't keep my turbo spooled, I am shifting pretty fast. I even had my cousin make pulls on my car and he was not really able to do to and he races his M3 and shifts very fast. It just seem everytime I would shift the car needs a split second to spool. I could also play with settings of my APS bov.
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Originally Posted by Warrtalon
You're right that it's dependent on the situation, but in general, people get a slightly lower MPH when they cut an awesome 60'. I was talking more about small differences in 60'...if they do something like a 2.4 60', then yeah, the MPH is going to suffer. But if we're talking about a 1.9 vs a 1.8, the mph difference is minimal, and in my case, my MPH was HIGHER with the 1.9s. On none of my launches did I spin (not enough power), but I was bogging slightly after the initial launch off the line. I would assume he was bogging on his low rpm launches, if anything. I still think the 105mph indicates a problem elsewhere...