NOS on an old but strong motor?

dark70 · January 7th, 2007, 04:10 AM

I've been giving some serious thought to getting nitrous for my 1970 fastback. It has a 302, cleveland heads, 650 holley carb, and a cam, power equivalent to the Boss motor. The motor has around 65,000 miles on it and runs a little rich. I keep wanting to get a NOS system, but I'm afraid of hurting the engine. Does anyone have any helpfull comments on putting nitrous on an older motor? Are there certain checks I should make to ensure my motor can withstand an extra 100 hp?

ChrisJ · January 7th, 2007, 04:28 AM

Do a compression check...

Your motor will hold a 100 shot I am sure with no problem...

Darrell · January 8th, 2007, 03:28 AM

No problem at all. 100hp of nitrous is not much and won't hurt the engine at all.

dark70 · January 8th, 2007, 03:04 PM

Thanks. I'll keep you posted if I get the system.

My67_fastback · January 8th, 2007, 09:18 PM

uh. id be careful. its not recomended to shoot more than 75 into a stock rotating assembly. you will probably be fine but ya. just throwin' that out ther

ChrisJ · January 9th, 2007, 05:35 AM

Where did you hear 75????

100 shot is very safe for a stock rotating assembly...125 is safe as well...150 is pushing it...

Horseshoeing · January 9th, 2007, 09:27 AM

Originally Posted by Darrell

No problem at all. 100hp of nitrous is not much and won't hurt the engine at all.

I am not a NOS guy, but Darrell nows what he is talking about, so I would go with Darrell.

Darrell · January 9th, 2007, 02:49 PM

Originally Posted by My67_fastback

uh. id be careful. its not recomended to shoot more than 75 into a stock rotating assembly. you will probably be fine but ya. just throwin' that out ther

Please explain why you say this and your experience with the subject at hand.

My67_fastback · January 9th, 2007, 03:04 PM

hm i am mistaken. i apologize. i havent dealt with nos for a while and i was referring to "tuning" lols. you shouldnt shoot more than 75hp without retuning the car (newer, comp controlled cars, i have a 96 also.) but ya, srry bout that. i believe darrel to be well experienced on the subject and would trust him. if you dont , then just read up on the stock engine's max power handling. i believe i once found that somewhere, a list of how much hp the stock engines could take without upgrading. subtract the amount of all-engine power you have from that number, then you have your max, dont exceed that much of a nos shot.

rodenberg · January 9th, 2007, 09:18 PM

Originally Posted by My67_fastback

uh. id be careful. its not recomended to shoot more than 75 into a stock rotating assembly. you will probably be fine but ya. just throwin' that out ther

I use to spray 300 to stock crank and rod 460 never had one problem at all . it was a 1970 block also

ChrisJ · January 10th, 2007, 05:33 AM

Originally Posted by My67_fastback

hm i am mistaken. i apologize. i havent dealt with nos for a while and i was referring to "tuning" lols. you shouldnt shoot more than 75hp without retuning the car (newer, comp controlled cars, i have a 96 also.) but ya, srry bout that. i believe darrel to be well experienced on the subject and would trust him. if you dont , then just read up on the stock engine's max power handling. i believe i once found that somewhere, a list of how much hp the stock engines could take without upgrading. subtract the amount of all-engine power you have from that number, then you have your max, dont exceed that much of a nos shot.

I am wondering your exp. in NITROUS systems...

But you are fine with that shot...Go for it...

My67_fastback · January 10th, 2007, 02:54 PM

Originally Posted by ChrisJ

I am wondering your exp. in NITROUS systems...

But you are fine with that shot...Go for it...

i apologized i mis-remembered. but i have a small 75 nx on my 96 mustang. not that i feel the need to prove myself to you. you are being very rude as i was only trying to help.

Horseshoeing · January 10th, 2007, 08:38 PM

Thanks for trying to help.

My67_fastback · January 11th, 2007, 01:33 AM

you're welcome and my apologies again

rebelstang53 · February 5th, 2007, 12:19 PM

dude if ur gonna spray do it to anything but a fastback y r u gonna fuck up a idol?

Grimmy · February 5th, 2007, 01:28 PM

how does it being a fast back make any difference. besides it's a 1970 with a 302, its not like he is putting a kit on an all original 429 scj

dark70 · February 6th, 2007, 01:54 AM

Fastback Sportsroof's aren't usually devalued with non-factory mods. It's the Boss's, Shelby's and such that you don't want to mess with.

69fastback · February 6th, 2007, 10:10 AM

I know at least 7-8 people off the top of my head in our local club that spray 150 on BONE STOCK 302 short blocks. At least 3 of them have over 150,000 miles, and have never had the gaskets broke.

CR70fastback · February 7th, 2007, 04:46 PM

What does a nitrus set up fun for these days?

Is it the most cost efficient way to make more power?

69fastback · February 7th, 2007, 06:25 PM

It's easily the most cost efficient. There's no other mod you can gain an easy 100+ hp for $1000. That's assuming you don't blow it up, because it's also the most risky if you don't know what you're doing.

January 7th, 2007, 04:10 AM	#1
dark70 Newbie Join Date: Jan 2007 Location: Seattle, WA Posts: 12	NOS on an old but strong motor? I've been giving some serious thought to getting nitrous for my 1970 fastback. It has a 302, cleveland heads, 650 holley carb, and a cam, power equivalent to the Boss motor. The motor has around 65,000 miles on it and runs a little rich. I keep wanting to get a NOS system, but I'm afraid of hurting the engine. Does anyone have any helpfull comments on putting nitrous on an older motor? Are there certain checks I should make to ensure my motor can withstand an extra 100 hp?

January 7th, 2007, 04:28 AM	#2
ChrisJ The Cable Guy... 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Shepherdsville, Kentucky Posts: 15,352	Do a compression check... Your motor will hold a 100 shot I am sure with no problem... __________________ My Junk www.myspace.com/cjobe

January 8th, 2007, 03:28 AM	#3
Darrell MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: Fond du Lac, Wisconsin Posts: 6,497	No problem at all. 100hp of nitrous is not much and won't hurt the engine at all. __________________ Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft

January 8th, 2007, 09:18 PM	#5
My67_fastback Regular Join Date: Dec 2006 Location: oklahoma Posts: 196	uh. id be careful. its not recomended to shoot more than 75 into a stock rotating assembly. you will probably be fine but ya. just throwin' that out ther __________________ TO: Ricers- 1) there's no replacement for displacement 2) my lug nuts require more torque than your engine makes 3) a light car doesn't excuse a weak engine 4) a bottle of pepsi has more liters than your car eating rice builds muscle

January 9th, 2007, 05:35 AM	#6
ChrisJ The Cable Guy... 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Shepherdsville, Kentucky Posts: 15,352	Where did you hear 75???? 100 shot is very safe for a stock rotating assembly...125 is safe as well...150 is pushing it... __________________ My Junk www.myspace.com/cjobe

January 8th, 2007, 03:04 PM	#4
dark70 Newbie Join Date: Jan 2007 Location: Seattle, WA Posts: 12	Thanks. I'll keep you posted if I get the system.

January 9th, 2007, 03:04 PM	#9
My67_fastback Regular Join Date: Dec 2006 Location: oklahoma Posts: 196	hm i am mistaken. i apologize. i havent dealt with nos for a while and i was referring to "tuning" lols. you shouldnt shoot more than 75hp without retuning the car (newer, comp controlled cars, i have a 96 also.) but ya, srry bout that. i believe darrel to be well experienced on the subject and would trust him. if you dont , then just read up on the stock engine's max power handling. i believe i once found that somewhere, a list of how much hp the stock engines could take without upgrading. subtract the amount of all-engine power you have from that number, then you have your max, dont exceed that much of a nos shot. __________________ TO: Ricers- 1) there's no replacement for displacement 2) my lug nuts require more torque than your engine makes 3) a light car doesn't excuse a weak engine 4) a bottle of pepsi has more liters than your car eating rice builds muscle

January 10th, 2007, 08:38 PM	#13
Horseshoeing Classic Moderator Join Date: Aug 2005 Location: GA Posts: 4,179	Thanks for trying to help. __________________ Classic Mustangs are the best! Get one.

January 11th, 2007, 01:33 AM	#14
My67_fastback Regular Join Date: Dec 2006 Location: oklahoma Posts: 196	you're welcome and my apologies again __________________ TO: Ricers- 1) there's no replacement for displacement 2) my lug nuts require more torque than your engine makes 3) a light car doesn't excuse a weak engine 4) a bottle of pepsi has more liters than your car eating rice builds muscle

February 5th, 2007, 12:19 PM	#15
rebelstang53 Newbie Join Date: Feb 2007 Posts: 2	dude if ur gonna spray do it to anything but a fastback y r u gonna fuck up a idol?

February 6th, 2007, 01:54 AM	#17
dark70 Newbie Join Date: Jan 2007 Location: Seattle, WA Posts: 12	Fastback Sportsroof's aren't usually devalued with non-factory mods. It's the Boss's, Shelby's and such that you don't want to mess with.

February 6th, 2007, 10:10 AM	#18
69fastback Enthusiast 1969 Mustang Mach 1 OLDNSLO Join Date: Aug 2006 Location: Oklahoma jackass, get to driving Posts: 587	I know at least 7-8 people off the top of my head in our local club that spray 150 on BONE STOCK 302 short blocks. At least 3 of them have over 150,000 miles, and have never had the gaskets broke. __________________ New ride http://www.superior-motorsports.com/...aig/craig.html Old ride http://www.superior-motorsports.com/...g/mustang.html old rides engine in new home http://videos.streetfire.net/video/4...285480b970.htm

February 7th, 2007, 04:46 PM	#19
CR70fastback Regular Join Date: Dec 2006 Location: Iowa Posts: 207	What does a nitrus set up fun for these days? Is it the most cost efficient way to make more power?

February 7th, 2007, 06:25 PM	#20
69fastback Enthusiast 1969 Mustang Mach 1 OLDNSLO Join Date: Aug 2006 Location: Oklahoma jackass, get to driving Posts: 587	It's easily the most cost efficient. There's no other mod you can gain an easy 100+ hp for $1000. That's assuming you don't blow it up, because it's also the most risky if you don't know what you're doing. __________________ New ride http://www.superior-motorsports.com/...aig/craig.html Old ride http://www.superior-motorsports.com/...g/mustang.html old rides engine in new home http://videos.streetfire.net/video/4...285480b970.htm

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