Quest for a 9 second pass
#1
Racer
Thread Starter
Quest for a 9 second pass
Thanks for stopping by. I'm trying to get my base model LT2 08' A6 to run a 9.99 in the 1/4. But, like most people I have some questions.
I am honestly surprised Im even as close as I am to running a 9 second pass because nothing ever seems to work out. But as it stands she has ran a 6.70 @104mph (1.43 60ft) on a 200 shot. (390ci, cam, milled heads 10:5 cr, 3400 stall, N20,lts & dragpack) tuned by pat G.
- can the axles/drive shaft handle a 300 shot off the line? Currently running a dual stage 200 with about .5 second delay between activation from stage 1 on takeoff to stage 2. Ideally i want no delay with both stages and would like to hit them both from a dig, but may not be possible if its too much stress on every thing.
- can a stock (but tuned) A6 handle a 300 shot from a dig, assuming one stage is deactived before the 1 to 2 and 2 to 3 shift? It handled the 200, but i did hit a rev limiter on the 2 to 3 shift which obviously slowed me down on my 6.70 run
- will tr7 plugs be enough or should i go to tr8 plugs?
- does anyone run the new VX114 nitrous racing fuel? If so, is it worth running vs 116?
Thanks guys, I'm hoping the added nitrous can propel the 60ft to a 1.3x and possible 6.30-6.40 in the 1/8th so i can take it to a 1/4 mile track and run a 9 second pass and then get booted from the track lol.
I am honestly surprised Im even as close as I am to running a 9 second pass because nothing ever seems to work out. But as it stands she has ran a 6.70 @104mph (1.43 60ft) on a 200 shot. (390ci, cam, milled heads 10:5 cr, 3400 stall, N20,lts & dragpack) tuned by pat G.
- can the axles/drive shaft handle a 300 shot off the line? Currently running a dual stage 200 with about .5 second delay between activation from stage 1 on takeoff to stage 2. Ideally i want no delay with both stages and would like to hit them both from a dig, but may not be possible if its too much stress on every thing.
- can a stock (but tuned) A6 handle a 300 shot from a dig, assuming one stage is deactived before the 1 to 2 and 2 to 3 shift? It handled the 200, but i did hit a rev limiter on the 2 to 3 shift which obviously slowed me down on my 6.70 run
- will tr7 plugs be enough or should i go to tr8 plugs?
- does anyone run the new VX114 nitrous racing fuel? If so, is it worth running vs 116?
Thanks guys, I'm hoping the added nitrous can propel the 60ft to a 1.3x and possible 6.30-6.40 in the 1/8th so i can take it to a 1/4 mile track and run a 9 second pass and then get booted from the track lol.
Last edited by thehulk; 12-04-2017 at 08:32 AM.
#2
Safety Car
Thanks for stopping by. I'm trying to get my base model LT2 08' A6 to run a 9.99 in the 1/4. But, like most people I have some questions.
I am honestly surprised Im even as close as I am to running a 9 second pass because nothing ever seems to work out. But as it stands she has ran a 6.70 @104mph (1.43 60ft) on a 200 shot. (390ci, cam, milled heads 10:5 cr, 3400 stall, N20,lts & dragpack) tuned by pat G.
- can the axles/drive shaft handle a 300 shot off the line? Currently running a dual stage 200 with about .5 second delay between activation from stage 1 on takeoff to stage 2. Ideally i want no delay with both stages and would like to hit them both from a dig, but may not be possible if its too much stress on every thing.
- can a stock (but tuned) A6 handle a 300 shot from a dig, assuming one stage is deactived before the 1 to 2 and 2 to 3 shift? It handled the 200, but i did hit a rev limiter on the 2 to 3 shift which obviously slowed me down on my 6.70 run
- will tr7 plugs be enough or should i go to tr8 plugs?
- does anyone run the new VX114 nitrous racing fuel? If so, is it worth running vs 116?
Thanks guys, I'm hoping the added nitrous can propel the 60ft to a 1.3x and possible 6.30-6.40 in the 1/8th so i can take it to a 1/4 mile track and run a 9 second pass and then get booted from the track lol.
I am honestly surprised Im even as close as I am to running a 9 second pass because nothing ever seems to work out. But as it stands she has ran a 6.70 @104mph (1.43 60ft) on a 200 shot. (390ci, cam, milled heads 10:5 cr, 3400 stall, N20,lts & dragpack) tuned by pat G.
- can the axles/drive shaft handle a 300 shot off the line? Currently running a dual stage 200 with about .5 second delay between activation from stage 1 on takeoff to stage 2. Ideally i want no delay with both stages and would like to hit them both from a dig, but may not be possible if its too much stress on every thing.
- can a stock (but tuned) A6 handle a 300 shot from a dig, assuming one stage is deactived before the 1 to 2 and 2 to 3 shift? It handled the 200, but i did hit a rev limiter on the 2 to 3 shift which obviously slowed me down on my 6.70 run
- will tr7 plugs be enough or should i go to tr8 plugs?
- does anyone run the new VX114 nitrous racing fuel? If so, is it worth running vs 116?
Thanks guys, I'm hoping the added nitrous can propel the 60ft to a 1.3x and possible 6.30-6.40 in the 1/8th so i can take it to a 1/4 mile track and run a 9 second pass and then get booted from the track lol.
Last edited by irok; 12-04-2017 at 02:14 PM.
#3
Racer
Thread Starter
last time at track a month ago friends car went 10.10@133mph with 200 shot out of the hole.next pass went 1.41 60ft and destroyed his new transmission.car did not have a trany brace on it.tearing it apart now.dont know yet whether it has damaged differential also.he said before first pass if car went 9.99 or better he would pack up and go home.missed by .101.I see lots of breakage in your near future with what your going to do
#4
Supporting Vendor
Not necessarily.
I ran 9.950 with my LS7/A6 powered car back in 2009 without a brace, but do have one now on my current car.
The problem I was having that first required the brace was wheel hop, which was breaking the ears off the differential and (depending on how quickly I realized what had happened) hurting some of the internals in the transmission.
A brace is not a guarantee against any sort of internal breakage, but rather will help minimize the damage if the outer parts let go.
I've still managed to snap the output shaft while having a brace installed but the one and only time I still managed to break the ears off my differential while running a brace, the damage was contained and the transmission wasn't hurt at all.
I ran 9.950 with my LS7/A6 powered car back in 2009 without a brace, but do have one now on my current car.
The problem I was having that first required the brace was wheel hop, which was breaking the ears off the differential and (depending on how quickly I realized what had happened) hurting some of the internals in the transmission.
A brace is not a guarantee against any sort of internal breakage, but rather will help minimize the damage if the outer parts let go.
I've still managed to snap the output shaft while having a brace installed but the one and only time I still managed to break the ears off my differential while running a brace, the damage was contained and the transmission wasn't hurt at all.
#6
Safety Car
there are no guarantee's.got everything out this afternoon and the Z06 differential has a hole in the top of it.torque converter seems to have survived.that's the fourth new trany in the car.RPM Transmission that is a vender on here makes trany braces for them
Last edited by irok; 12-04-2017 at 05:18 PM.
#8
Safety Car
#9
Racer
Thread Starter
#10
Safety Car
#11
Racer
Thread Starter
Figured that was the first domino to fall in the break **** domino line.
I should be safe with the 150-175 out of the hole, its already ate those pills without any problen arising. I guess n20 is just so violent down low that it breaks **** easier then comparable NA or FI rwhp.
such is the game we play.
off topic, how would i fair against a 1000rwhp hellcat who runs 9.80s from a 40-130 roll with a 300 shot? (Im 465rwhp na)
#12
Burning Brakes
I've sprayed mine out the hole with a 200 plenty of times and a 225 once, stock A6 no braces stock 2.56 gears. Where are you located? I'm running 6.5@107 with a 7,000 da on a 200 shot with my 08 base A6.
#13
Racer
Thread Starter
Located in dfw.
You posted in my thread about tires. I ended up going a full hoosier 17" slick. I'll be shooting for a 6.5 now, at 0-1500 DA
#14
Burning Brakes
oh ok, can you post up a slip? There's no reason you shouldnt be mid 9s with a 200. I was running high 10s with pump gas and a small cam in east texas and louisana with da around 1000
#15
Racer
Thread Starter
I'll look for the slip, but the numbers were
1.43 60ft
6.70 1/8th
104.xx mph
no 330ft numbers
my pb na run is a 7.24 @96.48mph with a 1.54 60ft.
its just always under performed.
#17
Burning Brakes
have you ever got it on a dyno? Something is right my n/a 1/8 in el paso (4,000 ft above sea level on a track that goes up hill a bit) is 7.3@95 with a 1.64 60ft. There's no reason spraying a 200 shot in the DFW area you're only .6 faster in the 1/8 than me n/a.
I went 6.7 in the 1/8 on a 150 shot with the da at 6300
I went 6.7 in the 1/8 on a 150 shot with the da at 6300
#18
Racer
Thread Starter
have you ever got it on a dyno? Something is right my n/a 1/8 in el paso (4,000 ft above sea level on a track that goes up hill a bit) is 7.3@95 with a 1.64 60ft. There's no reason spraying a 200 shot in the DFW area you're only .6 faster in the 1/8 than me n/a.
I went 6.7 in the 1/8 on a 150 shot with the da at 6300
I went 6.7 in the 1/8 on a 150 shot with the da at 6300
PatG dyno'd it and got 464rwhp na. I agree, it should be faster, theres a hiccup somewhere and the only thing i can gather is the tight converter. I had it built by PTI, they took my cam specs, asked me my plans ect. I told them I was going forced induction and expected about 800rwhp. So that's what they built the 3400 converter to expect.
The shop i used was shady as ****, but i assume since Patg got it to dyno 464rwhp, all work and parts were installed correctly by the shop in question.
The compression ratio is also on the lower side, 10:5:1
#20
Racer
Thread Starter
Well im not gonna launch on a 200, ill do a 2 stage 150/150 or 175/125
Im set on a 275-300 shot. I gotta get with PatG to get me tune spot on. He's an ace at the 6L80E.