Nitrous vs. Boost
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 77
From: Forney Texas
It has been my personal experience that comparable powered N/A and nitrous cars do better than F/I cars. I can't explain it. It's just the way I have personally seen it go down.
With Centri's, boost is progressive. With nitrous, low end torque is ridiculous. So much so that you really need to keep it from coming on at too low of a RPM if you don't want to lift heads or break stuff.
With Centri's, boost is progressive. With nitrous, low end torque is ridiculous. So much so that you really need to keep it from coming on at too low of a RPM if you don't want to lift heads or break stuff.
Safety Car
Joined: Jul 2004
Posts: 3,706
Likes: 2
From: Valrico Florida
You want an honest opinion. Ask a person that has had nitrous and turbos on the same car. Hey!! That would be me. Too many variables to be honest. My nitrous setup at the same rwhp level as my current setup felt faster. Could be due to my nitrous setup was lighter and made more tq.
Burning Brakes
Joined: Jan 2004
Posts: 1,158
Likes: 6
From: Winter Springs Fla
The quickest And the fastest cars in competive racing run either a supercharger or nitrous so this debate is pointless and has no end .
The cars that push 200 mph for 24hr races dont use either , hehe
The cars that push 200 mph for 24hr races dont use either , hehe
Safety Car
Joined: Jul 2004
Posts: 3,706
Likes: 2
From: Valrico Florida
Drifting
Joined: Dec 2003
Posts: 1,922
Likes: 0
great thread guys!! a pleasure to read this thread
my centri just dynoed 892 rear wheel and 798 torque, I cant imagine
anybody ever needing more hp, and the power is there as long as there
is fuel pressure, and alky....it pulls to the moon, and I may give twin turbo 427 a serious run for the money....all set ups have their pros and cons, the belt issue is now a thing of the past with the cartek flip drive, and the blower is so quiet you dont hear it...best of luck to all
and may your bottles always be full!!! nitrous hits very hard though, and I hear its very tough on the crank and the driveline. And dont forget Nitrous aint cheap either. How often does a nitrous motor need a rebuild, I am going on my 4th year with my motor.....
Vinny
my centri just dynoed 892 rear wheel and 798 torque, I cant imagine
anybody ever needing more hp, and the power is there as long as there
is fuel pressure, and alky....it pulls to the moon, and I may give twin turbo 427 a serious run for the money....all set ups have their pros and cons, the belt issue is now a thing of the past with the cartek flip drive, and the blower is so quiet you dont hear it...best of luck to all
and may your bottles always be full!!! nitrous hits very hard though, and I hear its very tough on the crank and the driveline. And dont forget Nitrous aint cheap either. How often does a nitrous motor need a rebuild, I am going on my 4th year with my motor.....
Vinny
Burning Brakes
Joined: Jan 2004
Posts: 1,158
Likes: 6
From: Winter Springs Fla
I put over 70k miles on my stock motor spraying it on the weekends and against the ocasional mustang on the way to or from work .
Im sure your motor will last a long time when you drive it on the weekends .
Im sure your motor will last a long time when you drive it on the weekends .
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Drifting
Joined: Jun 2006
Posts: 1,702
Likes: 1
[QUOTEe=zoomz;1572248545]I put over 70k miles on my stock motor spraying it on the weekends and against the ocasional mustang on the way to or from work .
Im sure your motor will last a long time when you drive it on the weekends .[/QUOTE]
A purpose built nitrous motor (street/strip) will also last a very "long" time. As long as the engine (nitrous) is operated within the required safety parameters,you will be good to go for years. 
Im sure your motor will last a long time when you drive it on the weekends .[/QUOTE]
A purpose built nitrous motor (street/strip) will also last a very "long" time. As long as the engine (nitrous) is operated within the required safety parameters,you will be good to go for years.
Melting Slicks
Joined: Apr 2007
Posts: 2,167
Likes: 55
From: Kempner TX
St. Jude Donor '08-'09
great thread guys!! a pleasure to read this thread
my centri just dynoed 892 rear wheel and 798 torque, I cant imagine
anybody ever needing more hp, and the power is there as long as there
is fuel pressure, and alky....it pulls to the moon, and I may give twin turbo 427 a serious run for the money....all set ups have their pros and cons, the belt issue is now a thing of the past with the cartek flip drive, and the blower is so quiet you dont hear it...best of luck to all
and may your bottles always be full!!! nitrous hits very hard though, and I hear its very tough on the crank and the driveline. And dont forget Nitrous aint cheap either. How often does a nitrous motor need a rebuild, I am going on my 4th year with my motor.....
Vinny
my centri just dynoed 892 rear wheel and 798 torque, I cant imagine
anybody ever needing more hp, and the power is there as long as there
is fuel pressure, and alky....it pulls to the moon, and I may give twin turbo 427 a serious run for the money....all set ups have their pros and cons, the belt issue is now a thing of the past with the cartek flip drive, and the blower is so quiet you dont hear it...best of luck to all
and may your bottles always be full!!! nitrous hits very hard though, and I hear its very tough on the crank and the driveline. And dont forget Nitrous aint cheap either. How often does a nitrous motor need a rebuild, I am going on my 4th year with my motor.....
Vinny
If by chance my motor does let go then I will be looking for a high compression 408 iron block and I will be spraying a 400 shot through that. Ive been boosted and its no where near as fun as spray.
Safety Car
Joined: Jul 2004
Posts: 3,706
Likes: 2
From: Valrico Florida
Slow your roll there cowboy. I use to sport a 408ci iron setup with over 300rwhp shot and I can tell you there is no tire that is going to hold that power on the IRS. I raced on a much smaller shot. The tq hit is too much of a shock. I cracked my right rear quarter trying. Save the 100lbs and roll with a built stock cube LS1/2/3/6. I use to take down 850rwhp Supras in my F-body just making a tad over 700rwhp and almost 900rwtq going from a slow roll to 140mph. FRC's are much lighter. You have no worries sticking with stock cubes and spray. Also I would suggest 2 and even 3 small stages with nitrogen push.
Burning Brakes
Joined: Jan 2004
Posts: 1,158
Likes: 6
From: Winter Springs Fla
Slow your roll there cowboy. I use to sport a 408ci iron setup with over 300rwhp shot and I can tell you there is no tire that is going to hold that power on the IRS. I raced on a much smaller shot. The tq hit is too much of a shock. I cracked my right rear quarter trying. Save the 100lbs and roll with a built stock cube LS1/2/3/6. I use to take down 850rwhp Supras in my F-body just making a tad over 700rwhp and almost 900rwtq going from a slow roll to 140mph. FRC's are much lighter. You have no worries sticking with stock cubes and spray. Also I would suggest 2 and even 3 small stages with nitrogen push.
Sounds like we have led parallel lives
Safety Car
Joined: Jul 2004
Posts: 3,706
Likes: 2
From: Valrico Florida
Burning Brakes
Joined: Jan 2004
Posts: 1,158
Likes: 6
From: Winter Springs Fla
Melting Slicks
Joined: Apr 2007
Posts: 2,167
Likes: 55
From: Kempner TX
St. Jude Donor '08-'09
Slow your roll there cowboy. I use to sport a 408ci iron setup with over 300rwhp shot and I can tell you there is no tire that is going to hold that power on the IRS. I raced on a much smaller shot. The tq hit is too much of a shock. I cracked my right rear quarter trying. Save the 100lbs and roll with a built stock cube LS1/2/3/6. I use to take down 850rwhp Supras in my F-body just making a tad over 700rwhp and almost 900rwtq going from a slow roll to 140mph. FRC's are much lighter. You have no worries sticking with stock cubes and spray. Also I would suggest 2 and even 3 small stages with nitrogen push.
Thread Starter
Racer
Joined: Nov 2008
Posts: 316
Likes: 0
From: Leesburg GA
Thanks guys for the responces. My 402 is being built for spray. My builder is telling me that it is bullet proof but I guess only time will tell. Hopefully, I can get some dyno numbers posted on here in the next couple of weeks. I can't wait to see how that hit of nitrous is gonna feel.
Thread Starter
Racer
Joined: Nov 2008
Posts: 316
Likes: 0
From: Leesburg GA
I am running the stock bottom end of a 50,000 mile '99 FRC with H/C/I/E making 460 and 400 to the wheels on just motor. I have been running a 100 shot and upped it to a tuned 150 shot and there is absolutly nothing wrong with my bottom end. The car has gone 10.50 @ 136 with a horrible 1.61 60'... again... on the STOCK BOTTON END! These motors are strong and nitrous isnt as horrible as you think.
If by chance my motor does let go then I will be looking for a high compression 408 iron block and I will be spraying a 400 shot through that. Ive been boosted and its no where near as fun as spray.
If by chance my motor does let go then I will be looking for a high compression 408 iron block and I will be spraying a 400 shot through that. Ive been boosted and its no where near as fun as spray.
Race Director
Joined: Apr 2009
Posts: 10,581
Likes: 252
From: SE TEX
Thanks guys for the responces. My 402 is being built for spray. My builder is telling me that it is bullet proof but I guess only time will tell. Hopefully, I can get some dyno numbers posted on here in the next couple of weeks. I can't wait to see how that hit of nitrous is gonna feel.
Can't wait for you 
Racer
Joined: Feb 2008
Posts: 426
Likes: 0
The install prices I've seen start around $600 with a blow down tube and purge. Additional electronics and wiring outside of the basics will drive that up.