? about running Juice and TPI
Thread Starter
Pro
Joined: May 2003
Posts: 682
Likes: 1
From: Annapolis MD
? about running Juice and TPI
hey fella's i got a few questions as i'm getting ready to step up to the plate next year but might want to run juice on the car in the next few months as i plan out my homework for this project.
alittle info about current mods:
Mostly stock all free mods K&N open air box, MAF descreened, TB Bypassed, 160* T-Stat, Accel Super Coil, 12* degree advance timing, TPiS Long Tube Headers, Gutted Cat, and No Mufflers. Hayden Tranny cooler. Stock 1600 rpm stall and a 2.59 rear gear with Goodyear F1 D3's at 18.5 psi.
Best 60' 1.815
Best ET 13.187
Best MPH 105.84
this run was in crap DA and only ran 1 tenth quicker than my previous best with out the LT headers but picked up almost 3 mph. the previous best before the LT headers was 13.26@103 mph in -1500 DA new best with the LT headers was in 500+ DA.
with the headers on the car dynoed at the wheels very hot (220+ water temp) and blew the egr tube out but it pulled over 240 rwhp and 350 rwtq.
next mods will be:
crank pulley, AIR Elim pulley, MAT relocation, custom burnt chip, and i'm porting my stock intake.
well on with the questions.
what kit(s) do you guys recommend and with what extra gadgets? window switch setups w/ WOT switch? sorry this will be my first nitrous setup.
wet or dry?
how much will the stock application (short block) hold on the shot?
fuel pump or would i need to add more fuel or bigger injectors on stock application?
new motor will be a 396 stroker all forged internals. it will be built for juice on atleast a 150 shot.
thanks for the feedback and i'm sure i'll have more questions
alittle info about current mods:
Mostly stock all free mods K&N open air box, MAF descreened, TB Bypassed, 160* T-Stat, Accel Super Coil, 12* degree advance timing, TPiS Long Tube Headers, Gutted Cat, and No Mufflers. Hayden Tranny cooler. Stock 1600 rpm stall and a 2.59 rear gear with Goodyear F1 D3's at 18.5 psi.
Best 60' 1.815
Best ET 13.187
Best MPH 105.84
this run was in crap DA and only ran 1 tenth quicker than my previous best with out the LT headers but picked up almost 3 mph. the previous best before the LT headers was 13.26@103 mph in -1500 DA new best with the LT headers was in 500+ DA.
with the headers on the car dynoed at the wheels very hot (220+ water temp) and blew the egr tube out but it pulled over 240 rwhp and 350 rwtq.
next mods will be:
crank pulley, AIR Elim pulley, MAT relocation, custom burnt chip, and i'm porting my stock intake.
well on with the questions.
what kit(s) do you guys recommend and with what extra gadgets? window switch setups w/ WOT switch? sorry this will be my first nitrous setup.
wet or dry?
how much will the stock application (short block) hold on the shot?
fuel pump or would i need to add more fuel or bigger injectors on stock application?
new motor will be a 396 stroker all forged internals. it will be built for juice on atleast a 150 shot.
thanks for the feedback and i'm sure i'll have more questions
Instructor
Joined: Jun 2003
Posts: 126
Likes: 7
From: Markham Ontario
I went with the ZEX wet kit. Do a search on the forums. You'll quickly find that the wet kit is the best. WET means you're mixing fuel with the nitrous, THEN injecting it into the motor. DRY is injecting bare nitrous into the motor...... most people will agree that it's not smart to go dry......
www.zex.com makes an all in one unit...
www.zex.com makes an all in one unit...
Thread Starter
Pro
Joined: May 2003
Posts: 682
Likes: 1
From: Annapolis MD
Originally Posted by DSSKing
I went with the ZEX wet kit. Do a search on the forums. You'll quickly find that the wet kit is the best. WET means you're mixing fuel with the nitrous, THEN injecting it into the motor. DRY is injecting bare nitrous into the motor...... most people will agree that it's not smart to go dry......
www.zex.com makes an all in one unit...
www.zex.com makes an all in one unit...
any plug recommendations?
i know about gapping down to around .035 for nitrous.
what about timing? i run 12 degrees advanced now and with my custom chip being burnt what needs to be done to the spark curve parameters?
thanks!
Le Mans Master
Joined: Mar 2001
Posts: 9,464
Likes: 1
From: Modesto CA
Use the stock chip, 6º of timing up to 100hp Kit, 100-150, use 4º. I'd use the MSD Window switch coupled with the WOT Microswitch that comes with the NOS-05151 kit. Make it so that the WOT Microswitch has to be touching, AND the rpm's have to be between 3000rpm-6000rpm. I think the MOST you'll wanna bang is a 150 kit, remember, when you're gonna use Nitrous, put in some 100 octane. I'd try running stock plugs, gapped at .035. You MIGHT have to drop to 1 step colder, maybe not though.
Parts List:
NOS-05151 Nitrous Kit = $500
MSD On/Off Window Switch = $100
Nitrous = ~$5 a pound
Have fun!! Before I put a kit on your car, I'd get a set of Drag Radials
Parts List:
NOS-05151 Nitrous Kit = $500
MSD On/Off Window Switch = $100
Nitrous = ~$5 a pound
Have fun!! Before I put a kit on your car, I'd get a set of Drag Radials
Last edited by TIMSPEED; Aug 6, 2004 at 01:09 AM.
Drifting
Joined: Apr 2003
Posts: 1,379
Likes: 4
From: rome ny
im running a zex 125 hp wet kit in my 91. i use an msd digital 6 ignition to pull 4* timing. also my base timing is at 8*, i wouldnt go any higher. you will want to upgrage to a bigger fuel pump, i used a bosch 550 hp pump from tpis, or at least put in a fuel pressure cut off switch. an msd window switch is nice but not nessesary. the max hp shot i would recommend on a stock stort block is 125. if you setup your 396 correctly you can spray 250 no problem. 
i would definatly go wet. its a lot easier to change your fuel pump than your injectors, and with a dry you may have to change both.
the zex wet kit uses a tps wot switch, all you have to do is splice into you voltage wire off your tps harness (2 mniutes). and you will remove your schrader valve off your fuel rails and run a fuel line to your nos box or soliniod (included in kit, for zex at least).
as far as gap you should be at .035 already. for 91 mine is.
i would definatly go wet. its a lot easier to change your fuel pump than your injectors, and with a dry you may have to change both.
the zex wet kit uses a tps wot switch, all you have to do is splice into you voltage wire off your tps harness (2 mniutes). and you will remove your schrader valve off your fuel rails and run a fuel line to your nos box or soliniod (included in kit, for zex at least).
as far as gap you should be at .035 already. for 91 mine is.
Thread Starter
Pro
Joined: May 2003
Posts: 682
Likes: 1
From: Annapolis MD
Originally Posted by mos90
im running a zex 125 hp wet kit in my 91. i use an msd digital 6 ignition to pull 4* timing. also my base timing is at 8*, i wouldnt go any higher. you will want to upgrage to a bigger fuel pump, i used a bosch 550 hp pump from tpis, or at least put in a fuel pressure cut off switch. an msd window switch is nice but not nessesary. the max hp shot i would recommend on a stock stort block is 125. if you setup your 396 correctly you can spray 250 no problem.
i would definatly go wet. its a lot easier to change your fuel pump than your injectors, and with a dry you may have to change both.
the zex wet kit uses a tps wot switch, all you have to do is splice into you voltage wire off your tps harness (2 mniutes). and you will remove your schrader valve off your fuel rails and run a fuel line to your nos box or soliniod (included in kit, for zex at least).
as far as gap you should be at .035 already. for 91 mine is.
i would definatly go wet. its a lot easier to change your fuel pump than your injectors, and with a dry you may have to change both.
the zex wet kit uses a tps wot switch, all you have to do is splice into you voltage wire off your tps harness (2 mniutes). and you will remove your schrader valve off your fuel rails and run a fuel line to your nos box or soliniod (included in kit, for zex at least).
as far as gap you should be at .035 already. for 91 mine is.
Thread Starter
Pro
Joined: May 2003
Posts: 682
Likes: 1
From: Annapolis MD
Originally Posted by TIMSPEED
Use the stock chip, 6º of timing up to 100hp Kit, 100-150, use 4º. I'd use the MSD Window switch coupled with the WOT Microswitch that comes with the NOS-05151 kit. Make it so that the WOT Microswitch has to be touching, AND the rpm's have to be between 3000rpm-6000rpm. I think the MOST you'll wanna bang is a 150 kit, remember, when you're gonna use Nitrous, put in some 100 octane. I'd try running stock plugs, gapped at .035. You MIGHT have to drop to 1 step colder, maybe not though.
Parts List:
NOS-05151 Nitrous Kit = $500
MSD On/Off Window Switch = $100
Nitrous = ~$5 a pound
Have fun!! Before I put a kit on your car, I'd get a set of Drag Radials
Parts List:
NOS-05151 Nitrous Kit = $500
MSD On/Off Window Switch = $100
Nitrous = ~$5 a pound
Have fun!! Before I put a kit on your car, I'd get a set of Drag Radials
i got a set of 9.5x17 and 11x17 ZR1 AMolds with a set of 315 BFG DR's i'll be using
still want to max my stock TPI out before i do the motor swap with the extruned honed LT1 intake i got thats already setup along with the ZZ409 cam. only thing i need to finish is my stroker assembly kit and get my stock heads reworked or just plunk the cash for a set of 2.08 intake 1.60 220 runner heads which i got my eye on so you guys say stay with the stock chip? even on the 396 combo i'm building? i think when i do the 396 i was thinking on going with a FAST setup or gen VII DFI setup and not the chip route.
still doing my homework on all of this before i put the new motor in.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
I run a barry grant kit on my 1994 with a 125 shot.
nitto 315-17 drag radials
It runs 13.70 at 103.36 without the shot,
with a 125 shot 3 degrees retard msd 6al box 2 step colder plugs and reprograming the computer it runs 11.22 at 121.67.
Reprogram bad term I use my laptop, and for the quick trans changes a hypertech power programer.
lt1 4l60e 307 dana 36 rear ,waiting for the big bang in the rear.
I maxed the revlimiter for the factory settings on the car it restricts the fuel to limit the engine rpm's not a good idea with Nitrous .I reset the limiter to the msd box at 6200 .I use a retard **** msd.
Fuel pump is a worlb 2000169 just came out with them in april 2004 .
I would go with someone that knows what they are doing when it comes to the computer and the cam needs to be a nitrous cam with a 114 degree center off set or 112.
My new motor is an lt1 converted to lt4 with afr heads diamond pistons and everything is coated and can run up to 300 shot.
went to the north star system for the distributor and had to go with and accel computer system not recomended but I can use my laptop to program it.Hope this helps you have your work cut out for you.good luck.
nitto 315-17 drag radials
It runs 13.70 at 103.36 without the shot,
with a 125 shot 3 degrees retard msd 6al box 2 step colder plugs and reprograming the computer it runs 11.22 at 121.67.
Reprogram bad term I use my laptop, and for the quick trans changes a hypertech power programer.
lt1 4l60e 307 dana 36 rear ,waiting for the big bang in the rear.
I maxed the revlimiter for the factory settings on the car it restricts the fuel to limit the engine rpm's not a good idea with Nitrous .I reset the limiter to the msd box at 6200 .I use a retard **** msd.
Fuel pump is a worlb 2000169 just came out with them in april 2004 .
I would go with someone that knows what they are doing when it comes to the computer and the cam needs to be a nitrous cam with a 114 degree center off set or 112.
My new motor is an lt1 converted to lt4 with afr heads diamond pistons and everything is coated and can run up to 300 shot.
went to the north star system for the distributor and had to go with and accel computer system not recomended but I can use my laptop to program it.Hope this helps you have your work cut out for you.good luck.
Drifting
Joined: Apr 2003
Posts: 1,379
Likes: 4
From: rome ny
Originally Posted by REDC4CORVETTE
I run a barry grant kit on my 1994 with a 125 shot.
nitto 315-17 drag radials
It runs 13.70 at 103.36 without the shot,
with a 125 shot 3 degrees retard msd 6al box 2 step colder plugs and reprograming the computer it runs 11.22 at 121.67.
Reprogram bad term I use my laptop, and for the quick trans changes a hypertech power programer.
lt1 4l60e 307 dana 36 rear ,waiting for the big bang in the rear.
I maxed the revlimiter for the factory settings on the car it restricts the fuel to limit the engine rpm's not a good idea with Nitrous .I reset the limiter to the msd box at 6200 .I use a retard **** msd.
Fuel pump is a worlb 2000169 just came out with them in april 2004 .
I would go with someone that knows what they are doing when it comes to the computer and the cam needs to be a nitrous cam with a 114 degree center off set or 112.
My new motor is an lt1 converted to lt4 with afr heads diamond pistons and everything is coated and can run up to 300 shot.
went to the north star system for the distributor and had to go with and accel computer system not recomended but I can use my laptop to program it.Hope this helps you have your work cut out for you.good luck.
nitto 315-17 drag radials
It runs 13.70 at 103.36 without the shot,
with a 125 shot 3 degrees retard msd 6al box 2 step colder plugs and reprograming the computer it runs 11.22 at 121.67.
Reprogram bad term I use my laptop, and for the quick trans changes a hypertech power programer.
lt1 4l60e 307 dana 36 rear ,waiting for the big bang in the rear.
I maxed the revlimiter for the factory settings on the car it restricts the fuel to limit the engine rpm's not a good idea with Nitrous .I reset the limiter to the msd box at 6200 .I use a retard **** msd.
Fuel pump is a worlb 2000169 just came out with them in april 2004 .
I would go with someone that knows what they are doing when it comes to the computer and the cam needs to be a nitrous cam with a 114 degree center off set or 112.
My new motor is an lt1 converted to lt4 with afr heads diamond pistons and everything is coated and can run up to 300 shot.
went to the north star system for the distributor and had to go with and accel computer system not recomended but I can use my laptop to program it.Hope this helps you have your work cut out for you.good luck.
you picked up 1.5 sec with a 125 shot?
Thread Starter
Pro
Joined: May 2003
Posts: 682
Likes: 1
From: Annapolis MD
Originally Posted by REDC4CORVETTE
I run a barry grant kit on my 1994 with a 125 shot.
nitto 315-17 drag radials
It runs 13.70 at 103.36 without the shot,
with a 125 shot 3 degrees retard msd 6al box 2 step colder plugs and reprograming the computer it runs 11.22 at 121.67.
Reprogram bad term I use my laptop, and for the quick trans changes a hypertech power programer.
lt1 4l60e 307 dana 36 rear ,waiting for the big bang in the rear.
I maxed the revlimiter for the factory settings on the car it restricts the fuel to limit the engine rpm's not a good idea with Nitrous .I reset the limiter to the msd box at 6200 .I use a retard **** msd.
Fuel pump is a worlb 2000169 just came out with them in april 2004 .
I would go with someone that knows what they are doing when it comes to the computer and the cam needs to be a nitrous cam with a 114 degree center off set or 112.
My new motor is an lt1 converted to lt4 with afr heads diamond pistons and everything is coated and can run up to 300 shot.
went to the north star system for the distributor and had to go with and accel computer system not recomended but I can use my laptop to program it.Hope this helps you have your work cut out for you.good luck.
nitto 315-17 drag radials
It runs 13.70 at 103.36 without the shot,
with a 125 shot 3 degrees retard msd 6al box 2 step colder plugs and reprograming the computer it runs 11.22 at 121.67.
Reprogram bad term I use my laptop, and for the quick trans changes a hypertech power programer.
lt1 4l60e 307 dana 36 rear ,waiting for the big bang in the rear.
I maxed the revlimiter for the factory settings on the car it restricts the fuel to limit the engine rpm's not a good idea with Nitrous .I reset the limiter to the msd box at 6200 .I use a retard **** msd.
Fuel pump is a worlb 2000169 just came out with them in april 2004 .
I would go with someone that knows what they are doing when it comes to the computer and the cam needs to be a nitrous cam with a 114 degree center off set or 112.
My new motor is an lt1 converted to lt4 with afr heads diamond pistons and everything is coated and can run up to 300 shot.
went to the north star system for the distributor and had to go with and accel computer system not recomended but I can use my laptop to program it.Hope this helps you have your work cut out for you.good luck.
keep the stuff coming and thanks!
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
The key to nitrous is to tune the car to your best time and then spray it.
I run 13.50 to 13.70 when hot then I spray it when it is set up right ,first run at the track I run stock and the next runs spray.
the standard run is 11.70 hot and 11.15 or 11.25 cold 125 shot.
12.20 with a 75 shot easy time to run.
You have to run a bottle heater and a digital presure gauge on the bottle ,I launch at 1000 psi and fuel presure at 40.
I run 13.50 to 13.70 when hot then I spray it when it is set up right ,first run at the track I run stock and the next runs spray.
the standard run is 11.70 hot and 11.15 or 11.25 cold 125 shot.
12.20 with a 75 shot easy time to run.
You have to run a bottle heater and a digital presure gauge on the bottle ,I launch at 1000 psi and fuel presure at 40.
Last edited by REDC4CORVETTE; Aug 17, 2004 at 04:17 AM.
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
Hello again,Just picked up .7 not good ,now what were the stats?
Bottle temp at 950 degrees nitto drag 315/17 radials at 18 lbs.?
4 degrees retard,plugs at .35 th's,fuel at 101 octain or better,
60 foot times were? top end speed ???
In the burn box? drove around it?
Fuel pressure was at?
Need more input.
Bottle temp at 950 degrees nitto drag 315/17 radials at 18 lbs.?
4 degrees retard,plugs at .35 th's,fuel at 101 octain or better,
60 foot times were? top end speed ???
In the burn box? drove around it?
Fuel pressure was at?
Need more input.
Melting Slicks
Joined: May 2001
Posts: 3,014
Likes: 18
From: Raleigh, NC
Dude, did I just read you bitching about a 500 ft. DA? The DA here on a GOOD day is 7500 ft. 10k is the norm. It's all relative I guess, lol.
IMO, a wet kit that you pieced together is the way to go. Do some research, find out exactly what you need and piece it together off E-bay. I built my kit, winodw switch, WOT switch, duel stage with one purge (5 noids), 10 lb bottle for less than $400.
IMO, a wet kit that you pieced together is the way to go. Do some research, find out exactly what you need and piece it together off E-bay. I built my kit, winodw switch, WOT switch, duel stage with one purge (5 noids), 10 lb bottle for less than $400.
Racer
Joined: Jul 2003
Posts: 463
Likes: 2
From: Mishawaka Indiana
Originally Posted by REDC4CORVETTE
The key to nitrous is to tune the car to your best time and then spray it.
I run 13.50 to 13.70 when hot then I spray it when it is set up right ,first run at the track I run stock and the next runs spray.
the standard run is 11.70 hot and 11.15 or 11.25 cold 125 shot.
12.20 with a 75 shot easy time to run.
You have to run a bottle heater and a digital presure gauge on the bottle ,I launch at 1000 psi and fuel presure at 40.
I run 13.50 to 13.70 when hot then I spray it when it is set up right ,first run at the track I run stock and the next runs spray.
the standard run is 11.70 hot and 11.15 or 11.25 cold 125 shot.
12.20 with a 75 shot easy time to run.
You have to run a bottle heater and a digital presure gauge on the bottle ,I launch at 1000 psi and fuel presure at 40.
but I would like to see that. I get around 1.3 with a 150 shot.
Drifting
Joined: Feb 2002
Posts: 1,937
Likes: 2
From: Arvada CO
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
Yes I have exceded the design limits of the car.
If you know how to tune and you are willing to spray off the line,
low 11's are no prob at sea level with a 125 shot the only ones that believe it are the guys I race with ,they also run nitrous and they all run 10 or 9's .When I run the other guys come over and can't believe that I am as fast with only a 125 shot 1.67 60 foot and it does break things like shocks motor mounts and so on .Nitto Drag radials on the rear.Barry Grant system, If you realy know your nitrous that is the kit to buy check out the hot rod mag for the mth they put 450 shot on a 350 sbc not that much damage but do it right.
Repoman if you check I have a 94 and I program the computer you should not change the chip in your car if you want to turn better times ,I only changed my maf and map, lap top programing for the rest
If you know how to tune and you are willing to spray off the line,
low 11's are no prob at sea level with a 125 shot the only ones that believe it are the guys I race with ,they also run nitrous and they all run 10 or 9's .When I run the other guys come over and can't believe that I am as fast with only a 125 shot 1.67 60 foot and it does break things like shocks motor mounts and so on .Nitto Drag radials on the rear.Barry Grant system, If you realy know your nitrous that is the kit to buy check out the hot rod mag for the mth they put 450 shot on a 350 sbc not that much damage but do it right.
Repoman if you check I have a 94 and I program the computer you should not change the chip in your car if you want to turn better times ,I only changed my maf and map, lap top programing for the rest
Last edited by REDC4CORVETTE; Aug 26, 2004 at 03:45 AM.
Thread Starter
Pro
Joined: May 2003
Posts: 682
Likes: 1
From: Annapolis MD
Originally Posted by REDC4CORVETTE
The key to nitrous is to tune the car to your best time and then spray it.
I run 13.50 to 13.70 when hot then I spray it when it is set up right ,first run at the track I run stock and the next runs spray.
the standard run is 11.70 hot and 11.15 or 11.25 cold 125 shot.
12.20 with a 75 shot easy time to run.
You have to run a bottle heater and a digital presure gauge on the bottle ,I launch at 1000 psi and fuel presure at 40.
I run 13.50 to 13.70 when hot then I spray it when it is set up right ,first run at the track I run stock and the next runs spray.
the standard run is 11.70 hot and 11.15 or 11.25 cold 125 shot.
12.20 with a 75 shot easy time to run.
You have to run a bottle heater and a digital presure gauge on the bottle ,I launch at 1000 psi and fuel presure at 40.
what size stall are you running? i'd like to spray out of the hole but damn i think tuned NA i could realistically hit 12.5's or better this fall still on the TPI, stock heads, stock internals, stock 1600 rpm stall, stock 2.59 gears.