nitrous + 305 = not that bad
Thread Starter
Junior Member
Joined: Feb 2007
Posts: 98
Likes: 0
From: wapak,ohio
Car: 1991 GTA trans am
Engine: 305 tpi
Transmission: 700r4
Axle/Gears: 3.73
nitrous + 305 = not that bad
Well i finally got my n20 hooked up and wow.
im running a 100 shot on my 305 tpi and here is what I have raced so far.
*1996 firebird lt1 ,auto, 4.10 gears
By 1 car
*1995 z28 camaro lt1 6-speed header back exhaust
By 1 1/2 cars
*1986 buick grand national turbo, intercooled
By 1 3/4 cars
*1999 GT 4.10's, exhaust, cold air
By 1/2 car
I have yet to lose, It kinda feels good after being picked on for so long about this whole 305 thing now they are getting it back by getting smoked by it.
My car
1991 GTA
305 tpi auto
1.6 rollor rockers
3.73 gears
100 shot
headers
flowmaster
airfoil
t/b bypass
im running a 100 shot on my 305 tpi and here is what I have raced so far.
*1996 firebird lt1 ,auto, 4.10 gears
By 1 car
*1995 z28 camaro lt1 6-speed header back exhaust
By 1 1/2 cars
*1986 buick grand national turbo, intercooled
By 1 3/4 cars
*1999 GT 4.10's, exhaust, cold air
By 1/2 car
I have yet to lose, It kinda feels good after being picked on for so long about this whole 305 thing now they are getting it back by getting smoked by it.
My car
1991 GTA
305 tpi auto
1.6 rollor rockers
3.73 gears
100 shot
headers
flowmaster
airfoil
t/b bypass
Supreme Member
iTrader: (3)
Joined: Oct 2005
Posts: 1,833
Likes: 0
From: Cincinatti OH
Car: 1991 L03 700r4 RS
Engine: 1987 WS6 Trans AM Lb2
Transmission: Th350 red neck Performance 3k stall
Axle/Gears: 95 Mustang 8.8 built with 3.73s
Re: nitrous + 305 = not that bad
In a world of bolt ons, nitrous is king.
Thread Starter
Junior Member
Joined: Feb 2007
Posts: 98
Likes: 0
From: wapak,ohio
Car: 1991 GTA trans am
Engine: 305 tpi
Transmission: 700r4
Axle/Gears: 3.73
Re: nitrous + 305 = not that bad
What all did you do to your fuel system to run a 140 shot? How many miles are on your car?
Cause I have thought about a 125 but I really dont know
Cause I have thought about a 125 but I really dont know
Junior Member
Joined: Oct 2006
Posts: 90
Likes: 0
From: Ontario
Car: 1985 WS6 T/A
Engine: LB9 305 TPI
Transmission: 700R4
Axle/Gears: 9bolt 3:27
Re: nitrous + 305 = not that bad
Stock fuel system, and 52N/28G jets in the fogger nozzels. Car has 52K kilometers, which is about 32K miles south of the border. I've pumped roughly 25 10lb bottles into this motor, and the compression is still fine. Melted a few plugs at 10* advance before I brought it back to the factory 6*. Just remember to go on and off the button at full throttle
Joined: Mar 2004
Posts: 1,643
Likes: 50
From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: nitrous + 305 = not that bad
Nitrous is awesome!!
You have almost the identical combo as I used to have .
Take it to a track and kick some butt.
You have almost the identical combo as I used to have .
Take it to a track and kick some butt.
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Supreme Member
Joined: Jun 2003
Posts: 1,386
Likes: 2
From: Toronto CANADA - GM Parts Rep.
Car: 1987 Iroc Z28
Engine: The KING of the 3rd gen TPI's.
Transmission: Beefed up T5
Axle/Gears: Aussie 3.45's
Re: nitrous + 305 = not that bad
Sounds like you should be running in the 13.7-14 range for the quarter.
Supreme Member
iTrader: (6)
Joined: Apr 2005
Posts: 1,459
Likes: 2
From: CT
Car: 92 trans am clone
Engine: LO3
Transmission: 700r4
Re: nitrous + 305 = not that bad
nitrous does work the best especially with these motors. i have a 125 shot running through my LO3 with headers catback and i ran 13.5 at the track.
Supreme Member

Joined: Dec 2001
Posts: 1,960
Likes: 1
From: Newark, DE
Car: 2006 Corvette
Engine: LS2
Transmission: T56
Axle/Gears: 3.42s
Re: nitrous + 305 = not that bad
nitrous is definately worth every penny
a friends old 85' LB9/auto Trans Am went 14.9 with only a catback and a cone filter in place of the airbox. on a NOS 125shot it rocketed to a 13.1 at 103mph
power adders are the way to go
a friends old 85' LB9/auto Trans Am went 14.9 with only a catback and a cone filter in place of the airbox. on a NOS 125shot it rocketed to a 13.1 at 103mph
power adders are the way to go
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