Up grade the Bullitt
#1
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Up grade the Bullitt
Does any one have a dyno of a stock Bullitt exhaust and of a Bullitt with Longtube headers& H-pipe .
I would like to know if there is still a @25 rwhp difference with the Bullitt's and Longtubes
I had a STOCK 07 Mustang GT Automatic that Dyno'ed at 262 rwhp with just a Dyno tune. I installed a Roush under drive pulley , Slp longtube headers, Slp X-pipes, 4.10 rear end gears, C&L Racer intake and an aluminum driveshaft. Then we dyno tuned again at "298 rwhp" .
So what I was thinking is with the same set up , except for the 4.10's ,would I get over 300 rwhp.
A young lady bought my 07 Mustang Gt and she lives about 10 miles from me. Someday we will race the 2 mustangs, as it sets now I will be look at her tale lights
It's doesn't seem right to be beat by a Mustang that I built and then sold!
I would like to know if there is still a @25 rwhp difference with the Bullitt's and Longtubes
I had a STOCK 07 Mustang GT Automatic that Dyno'ed at 262 rwhp with just a Dyno tune. I installed a Roush under drive pulley , Slp longtube headers, Slp X-pipes, 4.10 rear end gears, C&L Racer intake and an aluminum driveshaft. Then we dyno tuned again at "298 rwhp" .
So what I was thinking is with the same set up , except for the 4.10's ,would I get over 300 rwhp.
A young lady bought my 07 Mustang Gt and she lives about 10 miles from me. Someday we will race the 2 mustangs, as it sets now I will be look at her tale lights
It's doesn't seem right to be beat by a Mustang that I built and then sold!
#2
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Join Date: September 16, 2008
Location: South Central Kansas
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Does any one have a dyno of a stock Bullitt exhaust and of a Bullitt with Longtube headers& H-pipe .
I would like to know if there is still a @25 rwhp difference with the Bullitt's and Longtubes
I had a STOCK 07 Mustang GT Automatic that Dyno'ed at 262 rwhp with just a Dyno tune. I installed a Roush under drive pulley , Slp longtube headers, Slp X-pipes, 4.10 rear end gears, C&L Racer intake and an aluminum driveshaft. Then we dyno tuned again at "298 rwhp" .
So what I was thinking is with the same set up , except for the 4.10's ,would I get over 300 rwhp.
A young lady bought my 07 Mustang Gt and she lives about 10 miles from me. Someday we will race the 2 mustangs, as it sets now I will be look at her tale lights
It's doesn't seem right to be beat by a Mustang that I built and then sold!
I would like to know if there is still a @25 rwhp difference with the Bullitt's and Longtubes
I had a STOCK 07 Mustang GT Automatic that Dyno'ed at 262 rwhp with just a Dyno tune. I installed a Roush under drive pulley , Slp longtube headers, Slp X-pipes, 4.10 rear end gears, C&L Racer intake and an aluminum driveshaft. Then we dyno tuned again at "298 rwhp" .
So what I was thinking is with the same set up , except for the 4.10's ,would I get over 300 rwhp.
A young lady bought my 07 Mustang Gt and she lives about 10 miles from me. Someday we will race the 2 mustangs, as it sets now I will be look at her tale lights
It's doesn't seem right to be beat by a Mustang that I built and then sold!
#3
I've got one. Will post soon.
We gained 19whp after LTs and O/R H at 5800, which is where the dyno stopped. The operator had the cutoff speed at 120mph, instead of 140mph. It's easily safe to say there were and additional 6hp on the top. Stock Bullitt tune.
Also, drag racing S197's, autos are quicker.
We gained 19whp after LTs and O/R H at 5800, which is where the dyno stopped. The operator had the cutoff speed at 120mph, instead of 140mph. It's easily safe to say there were and additional 6hp on the top. Stock Bullitt tune.
Also, drag racing S197's, autos are quicker.
#4
My bullit stock was 279hp to the rear. After a tune I went to 289hp and i know someone that has a bullitt with a tune and longtube hearders..they clocked 301hp... Hope that answers your question
#8
I guess you need some S197 education.... http://www.s197forum.com
Even the expert stick drivers can't keep up with those quick shifting autos!
Even the expert stick drivers can't keep up with those quick shifting autos!
#9
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Join Date: January 30, 2008
Location: Pacific NW USA
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Long tube headers ONLY = low rpm torque loss
Yeah, with the long tube headers (ONLY) how much torque loss under 4000 RPM have you documented?
Because with a stock engine, heads & fuel system the long tube headers give small peak RPM horsepower gains at the expense of low RPM Torque. Most of us aren't going to realize or notice the MAX RPM horsepower gain in our daily driving, yet you will notice the low rpm Torque drop.
Sure the tune helps, but the tune helps without the long tube headers too. The honest black and white gains provided by long tube headers on basically street cars are HIGHLY overrated. Truthfully for the cost and trouble there many more efficient dollar for horsepower modifications available.
Because with a stock engine, heads & fuel system the long tube headers give small peak RPM horsepower gains at the expense of low RPM Torque. Most of us aren't going to realize or notice the MAX RPM horsepower gain in our daily driving, yet you will notice the low rpm Torque drop.
Sure the tune helps, but the tune helps without the long tube headers too. The honest black and white gains provided by long tube headers on basically street cars are HIGHLY overrated. Truthfully for the cost and trouble there many more efficient dollar for horsepower modifications available.
I've got one. Will post soon.
We gained 19whp after LTs and O/R H at 5800, which is where the dyno stopped. The operator had the cutoff speed at 120mph, instead of 140mph. It's easily safe to say there were and additional 6hp on the top. Stock Bullitt tune.
Also, drag racing S197's, autos are quicker.
We gained 19whp after LTs and O/R H at 5800, which is where the dyno stopped. The operator had the cutoff speed at 120mph, instead of 140mph. It's easily safe to say there were and additional 6hp on the top. Stock Bullitt tune.
Also, drag racing S197's, autos are quicker.
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