Would It be OK to run a shot of NOS on an engine with 130,000 miles on it but runs pretty good? I can't decide if I want to add a kit to my 305TBI car or if I want to spend the money on something else like an intake manifold and 1.6 roller rockers + a jet chip...



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92 Firebird 305 LO3-
Eibach pro-kit springs,
Lakewood LCA's,
17x8 AR Torque Thrust II's, Yoko Avid H4 tires, Edelbrock headers, 3" Catco Cat, 3" Flowmaster American, Thunder Catback, Accel 8.8mm plug wires, 14x3 Open element K&N, All free mods. 3:73 gears, Zexel torsen Differential

 

I have asked myself the same question. Finally decided to put my money in the bank and keep adding more until I can get that 350HO crate motor for $2100 and drop in there. That way I can have my hp all the time and not keep shelling out $$ refilling the bottle which could easily finish off my 115k motor.

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91 Camaro RS 5.0L Black Convertible 700R4
** Added so far **
*GM Wonderbar,Alston SFC's,spohn LCA's and Panhard rod
*Turbo City Inj Spacer
*Dual Snorkel Air Filter
*March Performance Pulleys
*GM 3.42 Gears with OEM Zexel POSI
*Edelbrock headers
*3" High Flow Cat
*3" Dynomax Exhaust
*Walbro 255 lph Fuel Pump
***Future 330hp Vortec Crate with LT4 hotcam and 454 TBI

 

My motor currently has 180k on it, and I have run 100hp shot of NOS on a regular basis for the last 4 years. On a well maintained motor, it wont hurt. Do a compression check to see if you have any weak cylinders...but on a TBI motor, you are probably allright, as they were not high performance to begin with.

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Mike Metzler (Desert86Roc)[*] Check Out:SpeedWorldMotorplex.com[*] Check Out:Chevrolet F-Body Online Part & Illustration Manual[*] My 86 IROC 305 TPI Page (406 build in progress)

ET's @ 1250 ft[*] 14.28 @ 95.461 mph (uncorrected, NOS, no headers)[*] 15.362 @ 88.238 mph (uncorrected, headers, no NOS)
<><

 

See heres the thing, I am a senior in highschool. I want this to run 13's at the track, I don't plan on using the bottle during street races at all. I only want the NOS for the track. I need the L03 to get me through college. I don't make enough money to save up for a 350 (besides it will be wasted when I go to college anyway) so I just need something to run decent for the next few years. From what I hear though, as long as the engine isn't lean and is in good condition, I probly won't hurt by spraying a few times..

Thanks guys for replying. I'm gonna go for it in October...

 

do it man. I have a completely stock bottom end in my car (all cast dogpoop and origional rod and main bolts) and probably make close to 500 HP at the crank on my 100 shot. Just pull a little timing out of it and dont get carried away......Its a great feeling

have fun.

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91 RS W/carbed 350, Vortec heads, performer rpm, Comp cams Xtreme energy 224/230 duration and .477/.480 lift. BFG Drag radials. 3.42 posi,Corvette servoed 700r4, 3000rpm stall converter. Edelbrock TES, 3inch cat, flowmaster with single 2.5 inch exit.
Best time yet to come
13.0 @ 107- N/A
12.5@ 117- 100HP Nitrous

This is a Pic of my car in race trim www.tbns.net/billyjay/camero.jpg

Yes I know how to spell camaro- so dont ask. I didnt make the link