New low 11's videos on stock turbos 20psi
11-23-10, 08:16 PM
#1
New low 11's videos on stock turbos 20psi
On Sunday My best run was 11.14 @ 126.5 with a bad start, 1.68 60 ft, another run was a 11.26 @ 127.17 with another bad start (this is my best ever trap speed), another run was 11.22 with another bad start lol. I wasn't getting any good starts all day so unfortunately I didn't hit 10's yet, I'm sure I would have hit 10's if I had a perfect run and great start like a 1.51 60 ft that I got last time at the track a few weeks ago. I was going 99 mph at the 1/8th, shifting into 4th right after half track.
Video links below:
http://www.youtube.com/watch?v=n6vBMIhHirQ
http://www.youtube.com/watch?v=HebGItss1DM
This was at Maryland International raceway, had the boost peaking at 22psi and holding at around 20 psi to redline. On this occasion I ran the 103 unleaded VP race gas they had at the track, and put in a more aggressive timing map with a little more advance timing. I normally only run 93 pump gas, with the same boost and low 11's.
Unfortunately I'll have to wait another year to reach my goal of 10's with the stock turbos. My local track shut down two weeks earlier than scheduled which sucked so I drove from Pittsburgh all the way to MIR in hopes of 10's haha.
Video links below:
http://www.youtube.com/watch?v=n6vBMIhHirQ
http://www.youtube.com/watch?v=HebGItss1DM
This was at Maryland International raceway, had the boost peaking at 22psi and holding at around 20 psi to redline. On this occasion I ran the 103 unleaded VP race gas they had at the track, and put in a more aggressive timing map with a little more advance timing. I normally only run 93 pump gas, with the same boost and low 11's.
Unfortunately I'll have to wait another year to reach my goal of 10's with the stock turbos. My local track shut down two weeks earlier than scheduled which sucked so I drove from Pittsburgh all the way to MIR in hopes of 10's haha.
11-23-10, 10:16 PM
#4
Thanks. I never tried any other type of racing or track driving, I would like to try that sometime. The drag strip is especially fun when you beat your best times, but for me it's been frustrating haha. I did 11.16 4 years ago, been trying to break into 10's on stock turbos forever it seems like. I have gone through an engine, rear end, one axle, tried different diff. gears, two sets of stock turbos, two or three clutches, 3 different sets of drag tires, etc. but I guess it will be worth it haha.
11-23-10, 10:23 PM
#5
thanks. Ya its gonna take a perfect run and I haven't been going out to the track very often and so my driving is slacking, haven't been able to put in the perfect mistake free runs like I used to do. Last time out at my local track I was getting great 60 ft times, 1.51, 1.53, etc, but kept missing gears or messing up my shifts etc, this time I did good shifting in most runs but never got a great launch or perfect run needed. I kept letting the clutch slip too much, didn't shoot off the line fast (maybe trying not to break anything, but probably killing the clutch), or I let out the clutch too fast which didn't work out either. I'm gonna have to practice more next year.
. You've got the trap speeds. Just need to lower the 60 a touch.
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11-24-10, 10:42 AM
#8
Very impressive! Car looks and pulls very hard.
I think your 60' is suffering because your not getting enough heat in the tire. Try a second or even third gear burnout! Do you have a timeslip we could see?
Your very capable of that 10 second pass, just need to sort out the bugs!
Great job again!!!
Mark
I think your 60' is suffering because your not getting enough heat in the tire. Try a second or even third gear burnout! Do you have a timeslip we could see?
Your very capable of that 10 second pass, just need to sort out the bugs!
Great job again!!!
Mark
11-24-10, 11:26 AM
#9
thanks. those were also the two worst burn outs lol. i do them in 2nd gear and normally much better, longer and lots of smoke. i have 3 other videos on youtube that show some good quick launches and a burnout from last year. i dont know why I just didnt launch good this day. it was the first time at this track I dont really think that had anything to do with it. funny thing is last time at my home track a few weeks ago I did a 1.51 60ft first pass in 6 months, best ever 60ft. i will upload time slips after work.
11-24-10, 02:39 PM
#10
Here is my timeslips attached. 3 from this past Sunday at Maryland International Raceway and 2 slips from 3 weeks ago at Pittsburgh Raceway Park. As you can see, my trap speeds were much faster at MIR, I ran a couple more lbs of air pressure in the tires and ran my new more advanced timing maps with race gas, which I switched to after my first run and definitely felt like it made the car faster. Same amount of boost at both tracks, only 93 pump gas at PRP. Also the elevation is much higher at PRP, the air temps were about the same, but there was more head wind at PRP so lots of factors play a role in the trap speeds. But for some reason I got good launches and great 60 ft times at PRP (but bad shifting and mistakes), and didn't launch good and got not good 60 fts at MIR.
11-24-10, 07:34 PM
#14
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Awesome runs, but just for the hell of it, turn your boost down to 16lbs and run it. If they are just regular stock turbos you should make the same power. Running 20psi, your gonna eat em up quick.
11-24-10, 07:38 PM
#15
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Congratulations on the impressive numbers. Jut out of curiosity, how in the hell are you getting away with running 20psi on the stock twins! I thought the stockers maxed out at 15psi and that anything after that that is just hot air. Did you notice a performance increase from 15 to 20 psi?
Also, I noticed that you used to run water injection. Any reason you decided to remove it? You'd think it would help cool that ridiculously hot air at 20psi.
Also, I noticed that you used to run water injection. Any reason you decided to remove it? You'd think it would help cool that ridiculously hot air at 20psi.
11-24-10, 07:47 PM
#16
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They don't really. Thats why I said turn it down. I made the same power at 16 back in the day. Your just overspinning those little pea shooters. Still damn good runs though.
11-24-10, 07:55 PM
#17
Nice runs dude. Are you foot reving? If so what are you launching at? Ive been launching reving in between 7-8k(back and forth kinda quick spools a little) and dumping it and ive cut 1.45-1.55 pretty consistant on stock suspension and old ET streets(i have broken a couple axles of about 20 passes and running a t2 lsd though going fast comes at a price). My car does have a little more power but the twins make power quicker and your car is alot lighter so think you should be alright. Yea the burn out was a little weak but i too do 2nd gear burn outs till i see smoke roll. Also mess with your tire pressure im running in between 12.5 and 14psi depending on the weather but it depends on the setup and only make like 1psi changes and start out at like 16psi. A little time and practice and you will have it. Heres what im talking about on the launch rev, kinda a crappy run but if you get out of the hole faster think you will be in the 10s because you cant really make up time anywhere else unless you have more hp since you shifting seems good.
http://www.youtube.com/watch?v=-hSek...eature=channel
http://www.youtube.com/watch?v=-hSek...eature=channel
11-24-10, 07:58 PM
#18
well contrary to popular belief, for me they make alot more power at 20 psi, dyno proven, look at my dyno sheet, it made a ton more power at around 20 to 23 psi compared to 15. i can feel a big difference going from 18 to 20. i only run the high boost when its cool out. they absolutely do not run out above 15. i think they run out maybe above 23. i turn up the boost that much cause it makes a difference not to try and kill the turbos quicker haha. and its tuned good for it, always monitor the afr with my wideband and timing is not aggressive. thanks for the congrats.
11-24-10, 08:07 PM
#19
the water meth kit slowed my car down and it lost hp on the dyno and lost like 3 tenths of a second at the track. i could feel a big difference. i tried the 3 different size nozzles and while it did help make the air intake temps colder, I took it off since it was not helping me at the track, it was hurting alot and extra weight. it would be good to run in the summer though. i didnt need it in the colder weather. the air intake temps are not hot running that much boost when its cool out. i dont race it or boost it high in the summer.
11-24-10, 08:18 PM
#20
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well contrary to popular belief, for me they make alot more power at 20 psi, dyno proven, look at my dyno sheet, it made a ton more power at around 20 to 23 psi compared to 15. i can feel a big difference going from 18 to 20. i only run the high boost when its cool out. they absolutely do not run out above 15. i think they run out maybe above 23. i turn up the boost that much cause it makes a difference not to try and kill the turbos quicker haha. and its tuned good for it, always monitor the afr with my wideband and timing is not aggressive. thanks for the congrats.
11-24-10, 08:34 PM
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Well then wouldn't going non sequential account for the extra horsepower. It's not uncommon for non sequential setups to net an extra 30whp over sequential setups due to the better air flow.
Sorry for asking so many questions, but when I saw that you were trapping 127mph with stock twins I couldn't believe it. Some guys with single turbos making 450whp don't even trap that high in the quarter mile. Watching a 7 on stock twins do 127mph in the quarter mile is like seeing a panda bear in the wild, it's astonishing and rare.
Sorry for asking so many questions, but when I saw that you were trapping 127mph with stock twins I couldn't believe it. Some guys with single turbos making 450whp don't even trap that high in the quarter mile. Watching a 7 on stock twins do 127mph in the quarter mile is like seeing a panda bear in the wild, it's astonishing and rare.
11-24-10, 08:38 PM
#24
turbo10th, thanks for the advice. I try to hold the revs up near 7, but then I watch the lights so who knows where they are, but I dont dump the clutch ever since doing that and breaking the rear end and axle haha. i have a tII lsd now so I guess it should be better or stronger. i try to let out the clutch a little slower than just dumping it, but on sunday i think i kept letting it out too slow. everything was real inconsistent that day, but I did good a few weeks ago. you can see some of my past good launches in the other videos at the link in my signature. i was running 14 psi in the tires on sunday and only like 12 a few weeks ago.
11-24-10, 08:48 PM
#25
ya, it was a comination of the full non sequential conversion and a little more boost, but I dont know exactly how much extra hp was from the non sequential conversion. i could feel a bigger difference when turning up the boost during testing more than the difference of going from sequential to non seq. I did do the quarter mile in 11.19 at 123.8 a few years ago with the stock sequential turbos. thats probably a record for stock sequential.