nitrous question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

MITCH1914 · 03-10-2003, 10:02 AM

for those of you who are running nitrous or have run nitruos in the past. what type of system did you run and how much of a performance gain did you achieve.

also i am thinking about running a 200 shot in the future. what modifications need to be in place for a motor to handle this much nitrous

blue72stepside · 03-11-2003, 12:34 AM

forged pistons is the big thing.

383 Stroker · 03-11-2003, 12:58 AM

I'm running a NX Hitman nitrous kit. My truck ran a best of 8.77 @80mph with a 2.00 60' without nitrous, with a 100hp shot it ran a best of 8.12 @85mph with a 1.84 60', with a 150hp shot it ran a best of 7.99 @88mph with a 1.96 60' (need better tires).

MITCH1914 · 03-11-2003, 09:44 AM

383 stroker what tires are you using? i have a set of 325/50/15 bfg drag radials and the only way i can hook is to bring the nos in @ around 4000. when i get to the track i will play with tire pressure. also how much do you add to 1/8 th mile time to get a 1/4 mile time. looks like your truck is in the 12's with the 150 shot if i am guessing correct.

blu
one more thing if i go with forged pistons can i handle 200 shot. i get plenty of fuel with my electric fuel pump.

oh yeah thanks blue for your reply

383 Stroker · 03-11-2003, 11:51 AM

I have a set a 295/50-15 Hoosier Quicktimes. They worked ok when they were new, but they are a few years old now and about bald. I'm going to buy a set of 28x13.50-15 ET Streets before I go back to the track. My truck should run mid 12's.

Multiply 1/8 mile times by 1.56 to get the 1/4 mile time.

Forged pistons will handle a 200hp shot. What kind of rods do you have? It would be a good idea to run some racing gas with a 200 shot. What hp shot are you running now?

Have you run it at the track with nitrous yet? You should be able to get in the 12's with a 100hp shot.

MITCH1914 · 03-11-2003, 12:29 PM

i have a 125 shot and i have not ran it at the track yet. our track opens on the march 21. i hope i can get into the 12's. i have run the nos for a few quick bursts on the street and it really snaps.

i have the stock rods now but when i rebuild the 400 (in the far future) i will buy some heavy duty rods. which ones do you reccomend?

383 Stroker · 03-11-2003, 01:09 PM

You should run 12's easy with a 125 shot, if it will hook up. I wouldn't go much higher than that 125hp shot with hypereutectic pistons and stock rods. Do the stock rods have ARP bolts? How much timing are you running with the 125hp shot?

MITCH1914 · 03-11-2003, 03:12 PM

stock bolts and i am running around 30* total. do i need to drop the oil pan and substitute the arp bolts for the stock ones. if that will save me some trouble i will do it

383 Stroker · 03-11-2003, 04:10 PM

ARP bolts are a lot better then stock. I'm guessing those rods haven't been shot peened? How hard do you turn that motor?

bigjimzlll · 03-11-2003, 04:14 PM

ask a machine shop b4 you drop the pan and add arp bolts....

MITCH1914 · 03-11-2003, 06:05 PM

i run it up to 5500. when i built the engine i had the rods reconditioned at the machine shop.

MITCH1914 · 03-12-2003, 05:45 PM

ttt

03-10-2003, 10:02 AM	#1
MITCH1914 Registered User Join Date: Mar 2001 Location: indianapolis,indiana,usa Posts: 506	nitrous question for those of you who are running nitrous or have run nitruos in the past. what type of system did you run and how much of a performance gain did you achieve. also i am thinking about running a 200 shot in the future. what modifications need to be in place for a motor to handle this much nitrous

03-11-2003, 12:34 AM	#2
blue72stepside Registered User Join Date: Aug 2001 Location: Morgan Hill, California Posts: 309	forged pistons is the big thing. __________________ 72 Cheyenne Stepside 357/TH350 3.07 Posi 379HP@5500 412FT#@4000 96 1500 Work Truck 88 Chevy Van 3/4 97 Tahoe 8.5 Lift (Sons) 00 1500 LT 4x4 (Sons) 98 Ford Cobra (Wifes Car)

03-11-2003, 12:58 AM	#3
383 Stroker Registered User Join Date: Aug 2001 Location: Jesup, GA Posts: 571	I'm running a NX Hitman nitrous kit. My truck ran a best of 8.77 @80mph with a 2.00 60' without nitrous, with a 100hp shot it ran a best of 8.12 @85mph with a 1.84 60', with a 150hp shot it ran a best of 7.99 @88mph with a 1.96 60' (need better tires). __________________ Video's of my Truck Racing 1967 C-10, 383ci Sbc, TH350, 3200 stall, 3.73 gear

03-11-2003, 11:51 AM	#5
383 Stroker Registered User Join Date: Aug 2001 Location: Jesup, GA Posts: 571	I have a set a 295/50-15 Hoosier Quicktimes. They worked ok when they were new, but they are a few years old now and about bald. I'm going to buy a set of 28x13.50-15 ET Streets before I go back to the track. My truck should run mid 12's. Multiply 1/8 mile times by 1.56 to get the 1/4 mile time. Forged pistons will handle a 200hp shot. What kind of rods do you have? It would be a good idea to run some racing gas with a 200 shot. What hp shot are you running now? Have you run it at the track with nitrous yet? You should be able to get in the 12's with a 100hp shot. __________________ Video's of my Truck Racing 1967 C-10, 383ci Sbc, TH350, 3200 stall, 3.73 gear

03-11-2003, 01:09 PM	#7
383 Stroker Registered User Join Date: Aug 2001 Location: Jesup, GA Posts: 571	You should run 12's easy with a 125 shot, if it will hook up. I wouldn't go much higher than that 125hp shot with hypereutectic pistons and stock rods. Do the stock rods have ARP bolts? How much timing are you running with the 125hp shot? __________________ Video's of my Truck Racing 1967 C-10, 383ci Sbc, TH350, 3200 stall, 3.73 gear

03-11-2003, 09:44 AM	#4
MITCH1914 Registered User Join Date: Mar 2001 Location: indianapolis,indiana,usa Posts: 506	383 stroker what tires are you using? i have a set of 325/50/15 bfg drag radials and the only way i can hook is to bring the nos in @ around 4000. when i get to the track i will play with tire pressure. also how much do you add to 1/8 th mile time to get a 1/4 mile time. looks like your truck is in the 12's with the 150 shot if i am guessing correct. blu one more thing if i go with forged pistons can i handle 200 shot. i get plenty of fuel with my electric fuel pump. oh yeah thanks blue for your reply

03-11-2003, 12:29 PM	#6
MITCH1914 Registered User Join Date: Mar 2001 Location: indianapolis,indiana,usa Posts: 506	i have a 125 shot and i have not ran it at the track yet. our track opens on the march 21. i hope i can get into the 12's. i have run the nos for a few quick bursts on the street and it really snaps. i have the stock rods now but when i rebuild the 400 (in the far future) i will buy some heavy duty rods. which ones do you reccomend?

03-11-2003, 03:12 PM	#8
MITCH1914 Registered User Join Date: Mar 2001 Location: indianapolis,indiana,usa Posts: 506	stock bolts and i am running around 30* total. do i need to drop the oil pan and substitute the arp bolts for the stock ones. if that will save me some trouble i will do it

03-11-2003, 04:10 PM	#9
383 Stroker Registered User Join Date: Aug 2001 Location: Jesup, GA Posts: 571	ARP bolts are a lot better then stock. I'm guessing those rods haven't been shot peened? How hard do you turn that motor? __________________ Video's of my Truck Racing 1967 C-10, 383ci Sbc, TH350, 3200 stall, 3.73 gear

03-11-2003, 04:14 PM	#10
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	ask a machine shop b4 you drop the pan and add arp bolts.... __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

03-11-2003, 06:05 PM	#11
MITCH1914 Registered User Join Date: Mar 2001 Location: indianapolis,indiana,usa Posts: 506	i run it up to 5500. when i built the engine i had the rods reconditioned at the machine shop.

03-12-2003, 05:45 PM	#12
MITCH1914 Registered User Join Date: Mar 2001 Location: indianapolis,indiana,usa Posts: 506	ttt



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