Help With Nitrous Kits for EFI/TBI 305 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

colt45-2007 · 01-13-2009, 09:30 PM

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Ok I have an 88 C1500 with a fairly new crate 305, it has 32,000 miles on it as of now, its pretty much stock, It has a K&N cold air intake kit, new exhaust from the manifolds back and sum other little stuff but nothing major. I am seriously thinking of buying a nitrous kit for it and am wondering what kit would work best or if I should even buy one at all..... A couple of kits I'm looking at are as followed:

ZEX Truck EFI Wet Nitrous Oxide System 82047 Kit with 55-125hp jets and activates using throttle position sensor.....(highest rated kit)

NOS 8 Cylinder Sniper WET EFI Nitrous 07006 Kit with 75-125hp jets and activates using micro switch near throttle linkage....(cheapest kit)

JEGS Barry Grant Adjustable TBI Nitrous Kit 87-95 with 50-125hp jets......

NOS 88-95 Nitrous Kit, Wet Shot Plate System For TBI Trucks 100-150 HP Adjustable - 4.3/5.0/5.7L......(most expensive kit)

All kits state they are for stock or slightly modified engines and require 92+ grade gasoline and a fuel pump meeting NEW specs..... I already run premium gas and have already replaced the fuel pump with a new one so I feel as though I could run any of these kits without any problems...... Please give me your opinions and feedback on the subject, Thanks

djracer · 01-15-2009, 08:31 AM

I'd run the bg kit that is from 50-125hp. I think that is plenty of spray for a stock motor.

drag_72 · 01-15-2009, 10:56 AM

especially a 305!! lol

colt45-2007 · 01-15-2009, 05:07 PM

Hey now don't hate on the 305, that's a poor mans V8 lol....... but yea I was thinking either the barry grant kit or the zex kit personally

djracer · 01-15-2009, 11:39 PM

I have been told the zex stuff is junk. A guy that works at the local speed shop said a zex bottle with his nos stuff slowed him down a tenth!

colt45-2007 · 01-16-2009, 12:16 AM

Really? Jeez well thats no good... I did a lot of research today and found that a lot of people with kits on 88-95 trucks had the barry grant kit and a few with the nos sniper kit

drag_72 · 01-16-2009, 03:18 PM

hey man im just messin with ya.. get what ya can get! lol anything to have lots of fun right?

colt45-2007 · 01-16-2009, 05:02 PM

Haha I know man, I agree 100% with that lol

scatesracing · 01-17-2009, 01:47 PM

I have always been a nitrous express guy... Their support is great.. I have put two kits on differant trucks like yours and the guys lovedd them... I recomend no matter what kit you choose. Make sure you run a fuel pressure switch. Dont let it lean out or it will be game over If you add a rpm switch it is almost idiot proof........ almost..........

djracer · 01-18-2009, 05:52 PM

I met the guy who own NX when he was here for drag week. He was driving his duramax powered mustang and he was super cool.

01-13-2009, 09:30 PM	#1
colt45-2007 Don'tHateThe88 Join Date: Jan 2009 Location: Glennville, GA Posts: 92	Help With Nitrous Kits for EFI/TBI 305 -------------------------------------------------------------------------------- Ok I have an 88 C1500 with a fairly new crate 305, it has 32,000 miles on it as of now, its pretty much stock, It has a K&N cold air intake kit, new exhaust from the manifolds back and sum other little stuff but nothing major. I am seriously thinking of buying a nitrous kit for it and am wondering what kit would work best or if I should even buy one at all..... A couple of kits I'm looking at are as followed: ZEX Truck EFI Wet Nitrous Oxide System 82047 Kit with 55-125hp jets and activates using throttle position sensor.....(highest rated kit) NOS 8 Cylinder Sniper WET EFI Nitrous 07006 Kit with 75-125hp jets and activates using micro switch near throttle linkage....(cheapest kit) JEGS Barry Grant Adjustable TBI Nitrous Kit 87-95 with 50-125hp jets...... NOS 88-95 Nitrous Kit, Wet Shot Plate System For TBI Trucks 100-150 HP Adjustable - 4.3/5.0/5.7L......(most expensive kit) All kits state they are for stock or slightly modified engines and require 92+ grade gasoline and a fuel pump meeting NEW specs..... I already run premium gas and have already replaced the fuel pump with a new one so I feel as though I could run any of these kits without any problems...... Please give me your opinions and feedback on the subject, Thanks __________________ '88 C1500 Stepside 350/700r4 & 3/7 drop Last edited by colt45-2007; 01-16-2009 at 12:17 AM.

01-15-2009, 08:31 AM	#2
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	Re: Help With Nitrous Kits for EFI/TBI 305 I'd run the bg kit that is from 50-125hp. I think that is plenty of spray for a stock motor. __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole! Last edited by djracer; 01-15-2009 at 08:32 AM.

01-15-2009, 10:56 AM	#3
drag_72 Ready to go fast!! Join Date: Aug 2008 Location: Carthage,Mo Posts: 219	Re: Help With Nitrous Kits for EFI/TBI 305 especially a 305!! lol __________________ 454 block .30 forged aluminum pistons steel crank valve job Holley Strip Dominator intake 1030cfm holley carb, 250 plate shot roller rockers Erson Solid cam split duration 307/310. .575/.595 lift milodon oil pan fab. aluminum valve covers 4 bolt main splayed anodized caps all studded

01-15-2009, 05:07 PM	#4
colt45-2007 Don'tHateThe88 Join Date: Jan 2009 Location: Glennville, GA Posts: 92	Re: Help With Nitrous Kits for EFI/TBI 305 Hey now don't hate on the 305, that's a poor mans V8 lol....... but yea I was thinking either the barry grant kit or the zex kit personally __________________ '88 C1500 Stepside 350/700r4 & 3/7 drop

01-15-2009, 11:39 PM	#5
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	Re: Help With Nitrous Kits for EFI/TBI 305 I have been told the zex stuff is junk. A guy that works at the local speed shop said a zex bottle with his nos stuff slowed him down a tenth! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

01-16-2009, 12:16 AM	#6
colt45-2007 Don'tHateThe88 Join Date: Jan 2009 Location: Glennville, GA Posts: 92	Re: Help With Nitrous Kits for EFI/TBI 305 Really? Jeez well thats no good... I did a lot of research today and found that a lot of people with kits on 88-95 trucks had the barry grant kit and a few with the nos sniper kit __________________ '88 C1500 Stepside 350/700r4 & 3/7 drop

01-16-2009, 03:18 PM	#7
drag_72 Ready to go fast!! Join Date: Aug 2008 Location: Carthage,Mo Posts: 219	Re: Help With Nitrous Kits for EFI/TBI 305 hey man im just messin with ya.. get what ya can get! lol anything to have lots of fun right? __________________ 454 block .30 forged aluminum pistons steel crank valve job Holley Strip Dominator intake 1030cfm holley carb, 250 plate shot roller rockers Erson Solid cam split duration 307/310. .575/.595 lift milodon oil pan fab. aluminum valve covers 4 bolt main splayed anodized caps all studded

01-16-2009, 05:02 PM	#8
colt45-2007 Don'tHateThe88 Join Date: Jan 2009 Location: Glennville, GA Posts: 92	Re: Help With Nitrous Kits for EFI/TBI 305 Haha I know man, I agree 100% with that lol __________________ '88 C1500 Stepside 350/700r4 & 3/7 drop

01-17-2009, 01:47 PM	#9
scatesracing Machinist Join Date: Sep 2007 Location: Derby Kansas Posts: 296	Re: Help With Nitrous Kits for EFI/TBI 305 I have always been a nitrous express guy... Their support is great.. I have put two kits on differant trucks like yours and the guys lovedd them... I recomend no matter what kit you choose. Make sure you run a fuel pressure switch. Dont let it lean out or it will be game over If you add a rpm switch it is almost idiot proof........ almost.......... Last edited by scatesracing; 01-17-2009 at 01:49 PM. Reason: I added the nx smiley

01-18-2009, 05:52 PM	#10
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,892	Re: Help With Nitrous Kits for EFI/TBI 305 I met the guy who own NX when he was here for drag week. He was driving his duramax powered mustang and he was super cool. __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

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