How Much Horsepower Will I See At The Wheels?

wlingle92lx · 03-13-2006, 05:29 PM

I don't expect anybody to know this question down to the exact number, but i would like some rough estimates on how much hp/tq i can expect at the rear wheels with my combo?

1992 Mustang 5.0 LX

The mods:

BBK CAI
BBK Pullies
Explorer Intake Manifold
BBK 70mm Throttle Body/EGR Plate
C&L 76mm MAF Sensor
BBK 1 5/8" Longtubes
BBK O/R H-PIpe
Flowmaster Exhaust
MSD 6AL Ignition
#24lbs Injectors
255lph Fuel Pump
NOS 175 Dry Shot
Autolite 23's Gapped At 0.035
10* Base Timing
110 VP Race Fuel

I didn't use this combo yet, but what is the max nitrous shot i can use before i blow head gaskets?

Can my engine handle more hp than this?

Jeff Chambers · 03-16-2006, 08:06 AM

I'd say about you'll see 245 to 260 N/A with torque in the 280 ft-lb range. IMHO a 175 dry shot is way too much for this. I'd limit it to about a 100 shot and still pull about 4-degrees. The computer's gonna put you at about 27 to 29 degrees total by 2700 rpm. If you go for the 175 shot, put it on a dyno first, pull at least 10-degrees to be safe, chase your A/F first then add back in a few degrees. I'd still be looking to pull about 8-degrees at the 175 level though if the A/F is good because you're gonna be taxing those injectors.

wlingle92lx · 03-16-2006, 04:30 PM

What injector size do you suggest that I run.

Will bigger than 24lbs injectors effect horsepower without the nitrous.

Will i make 360 rwhp with the correct injector size and the 175 dry shot?

Jeff Chambers · 03-16-2006, 08:38 PM

Any reason that you've gone with a dry shot? It really requires that you have a switch-chip with one program for N/A and one on the sauce.

What brand of nitrous system is it? They're rated differently depending on the brand.

wlingle92lx · 03-17-2006, 04:23 PM

What is a Switch-Chip, WILL THE #24lbs INJECTORS BE ENOUGH TO SUPPORT THE POWER I WILL BE MAKING! It is an NOS dry kit.

Jeff Chambers · 03-17-2006, 09:35 PM

A switch chip like the SCT 6600 can hold up to four custom programs on a single chip. You switch between the different tunes using a little switch. The 24# won't be enough for the dry kit IMHO. If it were a wet system you'd be better shape. I've got a customer with a Mach 1 making 410rwhp on my Mustang dyno with 24# injectors and a Zex wet system spraying a 125 shot. That's a four-valve motor though, making 311 on the motor alone.

wlingle92lx · 03-18-2006, 01:15 PM

I don't have enough time or money to install a switch-chip beings race season starts March 22, What size injectors do you recommed that I use? Will I run rich w/out using the nitrous.

03-13-2006, 05:29 PM	#1
wlingle92lx Registered Member Join Date: Nov 2005 Location: Grantville, Pa Posts: 29	How Much Horsepower Will I See At The Wheels? I don't expect anybody to know this question down to the exact number, but i would like some rough estimates on how much hp/tq i can expect at the rear wheels with my combo? 1992 Mustang 5.0 LX The mods: BBK CAI BBK Pullies Explorer Intake Manifold BBK 70mm Throttle Body/EGR Plate C&L 76mm MAF Sensor BBK 1 5/8" Longtubes BBK O/R H-PIpe Flowmaster Exhaust MSD 6AL Ignition #24lbs Injectors 255lph Fuel Pump NOS 175 Dry Shot Autolite 23's Gapped At 0.035 10* Base Timing 110 VP Race Fuel I didn't use this combo yet, but what is the max nitrous shot i can use before i blow head gaskets? Can my engine handle more hp than this?

03-16-2006, 04:30 PM	#3
wlingle92lx Registered Member Join Date: Nov 2005 Location: Grantville, Pa Posts: 29	Re: How Much Horsepower Will I See At The Wheels? What injector size do you suggest that I run. Will bigger than 24lbs injectors effect horsepower without the nitrous. Will i make 360 rwhp with the correct injector size and the 175 dry shot?

03-16-2006, 08:38 PM	#4
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: How Much Horsepower Will I See At The Wheels? Any reason that you've gone with a dry shot? It really requires that you have a switch-chip with one program for N/A and one on the sauce. What brand of nitrous system is it? They're rated differently depending on the brand. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

03-17-2006, 04:23 PM	#5
wlingle92lx Registered Member Join Date: Nov 2005 Location: Grantville, Pa Posts: 29	Re: How Much Horsepower Will I See At The Wheels? What is a Switch-Chip, WILL THE #24lbs INJECTORS BE ENOUGH TO SUPPORT THE POWER I WILL BE MAKING! It is an NOS dry kit.

03-17-2006, 09:35 PM	#6
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: How Much Horsepower Will I See At The Wheels? A switch chip like the SCT 6600 can hold up to four custom programs on a single chip. You switch between the different tunes using a little switch. The 24# won't be enough for the dry kit IMHO. If it were a wet system you'd be better shape. I've got a customer with a Mach 1 making 410rwhp on my Mustang dyno with 24# injectors and a Zex wet system spraying a 125 shot. That's a four-valve motor though, making 311 on the motor alone. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

03-16-2006, 08:06 AM	#2
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: How Much Horsepower Will I See At The Wheels? I'd say about you'll see 245 to 260 N/A with torque in the 280 ft-lb range. IMHO a 175 dry shot is way too much for this. I'd limit it to about a 100 shot and still pull about 4-degrees. The computer's gonna put you at about 27 to 29 degrees total by 2700 rpm. If you go for the 175 shot, put it on a dyno first, pull at least 10-degrees to be safe, chase your A/F first then add back in a few degrees. I'd still be looking to pull about 8-degrees at the 175 level though if the A/F is good because you're gonna be taxing those injectors. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

03-18-2006, 01:15 PM	#7
wlingle92lx Registered Member Join Date: Nov 2005 Location: Grantville, Pa Posts: 29	Re: How Much Horsepower Will I See At The Wheels? I don't have enough time or money to install a switch-chip beings race season starts March 22, What size injectors do you recommed that I use? Will I run rich w/out using the nitrous.

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