nitrous+vortec heads anyone???
04-05-2017, 05:27 PM
#1
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Car: 1990 firebird formula
Engine: 355 HSR comp xfi 268 vortec heads
Transmission: 700r4
Axle/Gears: 3.27 BW 9bolt
nitrous+vortec heads anyone???
so I'm in the process of fine tuning my nitrous set up,im spraying a 150shot. did a pass pulled a plug and appears that the plug I'm currently running is to hot. its a heat range 5. so I was going go to a heat range 7. how ever for the vortec heads I cant seem to find any 7's seems like they go from 6 straight to 8.
just wondering what everyone else is running on their set ups as far as spark plugs
just wondering what everyone else is running on their set ups as far as spark plugs
04-06-2017, 07:15 AM
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Car: 86' IROC
Engine: Supercharged 350
Transmission: T56
Axle/Gears: 3.45
Re: nitrous+vortec heads anyone???
AC delco's (what i ran for the longst time) run a R44LTS stock, and only offer a plug 2 steps colder (R42LTS) After 500 miles on my blower car they looked great, so i would probably give them a shot.
04-06-2017, 08:20 PM
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Car: 1990 firebird formula
Engine: 355 HSR comp xfi 268 vortec heads
Transmission: 700r4
Axle/Gears: 3.27 BW 9bolt
Re: nitrous+vortec heads anyone???
thanks for the reply ill give them a try and see what happens and let you know
04-07-2017, 07:11 AM
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Car: 86' IROC
Engine: Supercharged 350
Transmission: T56
Axle/Gears: 3.45
Re: nitrous+vortec heads anyone???
PS. I belive R42LTS6 burns just about as hot as the R44LTS. I would have to double check. I found the chart yesterday but cant seem to find it again. Regaurdless the R42LTS's are what i ran all last year without issues on 5.5lbs of boost
Last edited by 86CamaroDan; 04-07-2017 at 07:14 AM.
04-07-2017, 11:38 AM
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Car: 1979 Malibu
Engine: Blown LSx
Transmission: T56 Magnum
Axle/Gears: 9"/wavetrac/35's/3.70
Re: nitrous+vortec heads anyone???
so I'm in the process of fine tuning my nitrous set up,im spraying a 150shot. did a pass pulled a plug and appears that the plug I'm currently running is to hot. its a heat range 5. so I was going go to a heat range 7. how ever for the vortec heads I cant seem to find any 7's seems like they go from 6 straight to 8.
just wondering what everyone else is running on their set ups as far as spark plugs
just wondering what everyone else is running on their set ups as far as spark plugs
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04-13-2017, 11:40 AM
#8
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Re: nitrous+vortec heads anyone???
I am running a NGK 1049 B8EFS. It's a heat range 8, so far no fouling out with regular driving. It should take me to a 200-250 shot.
I ran a rt44 with 100 shot, and it was a little hot, so I jumped to the 8. The 1049 is pretty common and easy to find. You probably don't need an 8 for a 150 shot. The 7 will be fine.
I ran a rt44 with 100 shot, and it was a little hot, so I jumped to the 8. The 1049 is pretty common and easy to find. You probably don't need an 8 for a 150 shot. The 7 will be fine.