Drag Racing Tech - Nitrous guys, how much are you picking up if your already going quick?




ZTwentyAteU
01-17-2010, 02:19 AM
I'm doing a bunch of stuff to the car this winter and finally adding a decent nitrous setup. I'm really curious what yall think I can pick up in the 1/8 on a 200 hit, thats what i'm starting out with at first. Lets say the car runs 6.40s or 6.50s ( I think it may go a little faster this year) on motor. I've been racing for years and I know if your dipping into the mid to low 6s then nitrous ain't gonna pick it up as much as if it was a 7.90 car.

Heck if it went 5.90s i'd be tickled. I think it may go faster if I can keep it off the bumper.


JL ws-6
01-17-2010, 06:12 AM
My car was running around the 6.80 (10.50 1/4 mile) on motor with an n/a converter... I swapped to a nitrous converter and am spraying the car with a single 65 jet (about 160hp worth) and the car now goes a high 6.0x to the 1.8th and 9.5x to the 1/4

I up it to 200 like you're saying, and it will see a 5.9 I'm sure of it. Sounds like you're a little quicker on motor then I was, you should be able to see a high 5 I'd think without too much stress. I was runnign the car n/a @ 3600, and it was down to 3350 last year, at 3350 n/a it probably would have been a 10.30 car n/a and I'd guess a 6.70 on motor for comparison purposes.

jim1450
01-17-2010, 06:56 AM
I recently bought this car http://www.ls1tech.com/forums/vehicles-sale-lsx-powered-only/1201057-9-sec-street-car-sale.html he had a rich N20 tune & a tight N20 converter in it, went 11.6 NA & he claim 9.6 on 200 shot(video shows 9.8/140). Car was put together to be a N20 car, I have always been told you cant have run its best both on & off the bottle especially with an auto trans. His tuner said set up as a NA car it would be a mid 10 second car. I bought a HKE L92 408 for it & am going to run it NA.


camscam02
01-17-2010, 12:32 PM
We went 7.04 in motor with the tight nitrous converter and then went 6.24 on the 150 with low bottle pressure. Im thinking it would go 6.0x on a 200 or so.

ZTwentyAteU
01-18-2010, 04:11 AM
thanks for the input guys. I cant wait to button the car up and hit the track this year.

Ruckus46Gt
01-18-2010, 09:18 AM
Dont have slips in front of me for 1/8th but on a 100shot with nano went form 12.4@109.4 n/a with 1.80 60 to 11.04@123.08 with a 1.54 60'

ATVracr
01-18-2010, 09:21 AM
We were going low 6's on motor and 5.5's on 175 shot.

thunderstruck
01-19-2010, 01:22 PM
dont know what you define quick as, but on motor i have done 7.30 @ 95, 100 shot went 6.96 @ 101

BlackNightmare
01-19-2010, 02:50 PM
I have gone 7.14@96.1 1/8 and 11.19@120.8 NA
went 6.80@102 1/8 and 10.70@126.8 with 100 shot.

When I ran the 150 shot I had some wheel hop and spin and broke the trutrac. Got a spool in her now and going to see what the 150 will do in a week or so.

I am not quick but I have noticed that the faster you are the less the N20 will pick you up compared to a 13 sec car.

mrdragster1970
01-19-2010, 04:40 PM
.

9.31 with HP converter.
8.57 with N2O converter & 175 plate.
60' was about the same, so if car hooked better, it should gain a little more.

You are 100% correct, it's takes a bigger hit to get the same increase the quicker you are.

.

ZTwentyAteU
01-19-2010, 11:12 PM
.

9.31 with HP converter.
8.57 with N2O converter & 175 plate.
60' was about the same, so if car hooked better, it should gain a little more.

You are 100% correct, it's takes a bigger hit to get the same increase the quicker you are.

.


yes don't it suck that once you go so fast you cant just spray a second away with a simple nozzle kit? :bang:

I've got a friend spraying a 2 stage, 750 worth on a big block "fox mustang," it runs 5.80s and takes all that nitrous to get into the 4s

02 BLK WS6
01-25-2010, 05:15 PM
12.40 @ 110 n/a

10.62 @ 128 on a 200 shot

2800 vig converter (too tight for cam)

3600# raceweight

mrdragster1970
01-26-2010, 07:55 AM
.

It's definitely not easy to pick up .80 ET at my level.
Just look at P/S & P/M. P/S record is 6.25, & P/M is 5.88.
.37 difference, and it took 3 huge stages to do it.

12 seconds & it's easy, 9 seconds it's not too bad, 7 seconds and it's a major upgrade.

.

OutlawZ
01-26-2010, 01:49 PM
Went 6.20's on a 150 shot......

turned on a 2nd unit for another 150 on a terrible wheelie and lifting pass and went 6.05....

Got a clean pass in and immediately went 5.92.....

Put a new jet combo (twin 175 shots roughly) for 350 total. Best we whittled it down to was a 5.76@121

car goes like 6.9's on motor (roughly 10.60's)

Villain281H
01-27-2010, 06:37 AM
As mentioned, it will depend on your tune, converter, etc. My Nova ran 11.45 at 115 mph last weekend N/A into a 10 mph headwind, and 10.15 at 129 mph on a 200 HP shot using a progressive controller (all in by .85 seconds). The converter is good on the motor but probably a hair loose on the bottle.

Derek

sweetbmxrider
01-27-2010, 10:44 AM
my buddy has a 434 built for nitrous. he does 10.0's on motor and 8.80's on a 300 shot.