Borla catback HP increase?
09-18-2009, 02:22 PM
#12
2nd Gear Member
Join Date: Aug 2009
Location: WA
Posts: 248
Ya but if he(op) isnt going to race his car he doesnt need 4.10s. He should go with 3.73's if its going to be his dd and if he does any hwy traveling at all.
09-18-2009, 02:39 PM
#13
Average 26 mpg going back and forth to philly last night at 75mph...what??? who said that...I did cus it happened. I actually get the same mileage with 4.10's as i did with stock. So go 4.10's. And the tires only spin if you dont know how to drive...and i dont know how to. lol but im learning. Plus your powerband is higher up so you can afford 4.10's...or even 4.30's. But id do gears and weld in mufflers. That way you dont blow all your money on a catback.
09-18-2009, 02:59 PM
#14
2nd Gear Member
Join Date: Aug 2009
Location: WA
Posts: 248
Average 26 mpg going back and forth to philly last night at 75mph...what??? who said that...I did cus it happened. I actually get the same mileage with 4.10's as i did with stock. So go 4.10's. And the tires only spin if you dont know how to drive...and i dont know how to. lol but im learning. Plus your powerband is higher up so you can afford 4.10's...or even 4.30's. But id do gears and weld in mufflers. That way you dont blow all your money on a catback.
09-18-2009, 03:08 PM
#15
6th Gear Member
Join Date: May 2006
Location: earleville md
Posts: 10,357
I'm tired of the uneducated gear claims.
Its a cobra, imo I'd go 4.30s
My car is a dd, never sees the city, just highway and open countrt rds.
The last time I watched my mpg was on a 5hr, 300 miles each way trip. Cruising at 80 to 90 for 4 of the 5 hours, I got 28mpg.
The fact that its not a track car doesn't mean he should compramize and make it slower, that's just stupid
And lastly, its a cobra, its a 4v, it likes rpm more then the 2v
All the he said, she said, I once heard bull**** has got to stop, its missleading. Look at the thread where the guy got 3.73s because he was talked into it and isn't happy w them
Its a cobra, imo I'd go 4.30s
My car is a dd, never sees the city, just highway and open countrt rds.
The last time I watched my mpg was on a 5hr, 300 miles each way trip. Cruising at 80 to 90 for 4 of the 5 hours, I got 28mpg.
The fact that its not a track car doesn't mean he should compramize and make it slower, that's just stupid
And lastly, its a cobra, its a 4v, it likes rpm more then the 2v
All the he said, she said, I once heard bull**** has got to stop, its missleading. Look at the thread where the guy got 3.73s because he was talked into it and isn't happy w them
09-18-2009, 03:31 PM
#16
2nd Gear Member
Join Date: Aug 2009
Location: WA
Posts: 248
I'm tired of the uneducated gear claims.
Its a cobra, imo I'd go 4.30s
My car is a dd, never sees the city, just highway and open countrt rds.
The last time I watched my mpg was on a 5hr, 300 miles each way trip. Cruising at 80 to 90 for 4 of the 5 hours, I got 28mpg.
The fact that its not a track car doesn't mean he should compramize and make it slower, that's just stupid
And lastly, its a cobra, its a 4v, it likes rpm more then the 2v
All the he said, she said, I once heard bull**** has got to stop, its missleading. Look at the thread where the guy got 3.73s because he was talked into it and isn't happy w them
Its a cobra, imo I'd go 4.30s
My car is a dd, never sees the city, just highway and open countrt rds.
The last time I watched my mpg was on a 5hr, 300 miles each way trip. Cruising at 80 to 90 for 4 of the 5 hours, I got 28mpg.
The fact that its not a track car doesn't mean he should compramize and make it slower, that's just stupid
And lastly, its a cobra, its a 4v, it likes rpm more then the 2v
All the he said, she said, I once heard bull**** has got to stop, its missleading. Look at the thread where the guy got 3.73s because he was talked into it and isn't happy w them
09-18-2009, 05:22 PM
#17
Thread Starter
Join Date: Aug 2009
Location: WI
Posts: 21
There's another question.
Say I get gears 4.10 and then get my Borla catback. It will be louder than 3.73 because it's turning more RPM's.
Is there a seat of pants diff from stock 3.27 to 3.73?
I don't know to much about mid pipes and all but we do have emissions here in Wisc. and I would need cat converters. Plus thats really more than what i want to do.
I just want it to sound good and have a little more pick up.
Right now with stock gears shifting from first to second comes pretty quick shifting mildly at 3000 rpm's. i guess i need to find someone with 3.73 and 4.10 and see were normal driving shifting is.
I was going to go with 4.10, but like someone said they didn't like them becauce of the droning at hwy speeds. But then some say that have 3.73 that they should have went to 4.10. I was looking at American Muscle and I see that Ford Racing doesn't make a 3.90.
Well still confused!
I appreciate all the advise.
I should say that I'm 90% sure on the 4.10. I'm just stuck on the Rumble or the GO!
Say I get gears 4.10 and then get my Borla catback. It will be louder than 3.73 because it's turning more RPM's.
Is there a seat of pants diff from stock 3.27 to 3.73?
I don't know to much about mid pipes and all but we do have emissions here in Wisc. and I would need cat converters. Plus thats really more than what i want to do.
I just want it to sound good and have a little more pick up.
Right now with stock gears shifting from first to second comes pretty quick shifting mildly at 3000 rpm's. i guess i need to find someone with 3.73 and 4.10 and see were normal driving shifting is.
I was going to go with 4.10, but like someone said they didn't like them becauce of the droning at hwy speeds. But then some say that have 3.73 that they should have went to 4.10. I was looking at American Muscle and I see that Ford Racing doesn't make a 3.90.
Well still confused!
I appreciate all the advise.
I should say that I'm 90% sure on the 4.10. I'm just stuck on the Rumble or the GO!
Last edited by Wolfie40; 09-18-2009 at 05:25 PM.
09-18-2009, 05:27 PM
#18
4th Gear Member
Join Date: May 2009
Location: MO
Posts: 1,030
I'm tired of the uneducated gear claims.
Its a cobra, imo I'd go 4.30s
My car is a dd, never sees the city, just highway and open countrt rds.
The last time I watched my mpg was on a 5hr, 300 miles each way trip. Cruising at 80 to 90 for 4 of the 5 hours, I got 28mpg.
The fact that its not a track car doesn't mean he should compramize and make it slower, that's just stupid
And lastly, its a cobra, its a 4v, it likes rpm more then the 2v
All the he said, she said, I once heard bull**** has got to stop, its missleading. Look at the thread where the guy got 3.73s because he was talked into it and isn't happy w them
Its a cobra, imo I'd go 4.30s
My car is a dd, never sees the city, just highway and open countrt rds.
The last time I watched my mpg was on a 5hr, 300 miles each way trip. Cruising at 80 to 90 for 4 of the 5 hours, I got 28mpg.
The fact that its not a track car doesn't mean he should compramize and make it slower, that's just stupid
And lastly, its a cobra, its a 4v, it likes rpm more then the 2v
All the he said, she said, I once heard bull**** has got to stop, its missleading. Look at the thread where the guy got 3.73s because he was talked into it and isn't happy w them
09-18-2009, 05:28 PM
#19
2nd Gear Member
Join Date: Aug 2009
Location: WA
Posts: 248
There's another question.
Say I get gears 4.10 and then get my Borla catback. It will be louder than 3.73 because it's turning more RPM's.
Is there a seat of pants diff from stock 3.27 to 3.73?
I don't know to much about mid pipes and all but we do have emissions here in Wisc. and I would need cat converters. Plus thats really more than what i want to do.
I just want it to sound good and have a little more pick up.
Right now with stock gears shifting from first to second comes pretty quick shifting mildly at 3000 rpm's. i guess i need to find someone with 3.73 and 4.10 and see were normal driving shifting is.
I was going to go with 4.10, but like someone said they didn't like them becauce of the droning at hwy speeds. But then some say that have 3.73 that they should have went to 4.10. I was looking at American Muscle and I see that Ford Racing doesn't make a 3.90.
Well still confused!
I appreciate all the advise.
I should say that I'm 90% sure on the 4.10. I'm just stuck on the Rumble or the GO!
Say I get gears 4.10 and then get my Borla catback. It will be louder than 3.73 because it's turning more RPM's.
Is there a seat of pants diff from stock 3.27 to 3.73?
I don't know to much about mid pipes and all but we do have emissions here in Wisc. and I would need cat converters. Plus thats really more than what i want to do.
I just want it to sound good and have a little more pick up.
Right now with stock gears shifting from first to second comes pretty quick shifting mildly at 3000 rpm's. i guess i need to find someone with 3.73 and 4.10 and see were normal driving shifting is.
I was going to go with 4.10, but like someone said they didn't like them becauce of the droning at hwy speeds. But then some say that have 3.73 that they should have went to 4.10. I was looking at American Muscle and I see that Ford Racing doesn't make a 3.90.
Well still confused!
I appreciate all the advise.
I should say that I'm 90% sure on the 4.10. I'm just stuck on the Rumble or the GO!
09-18-2009, 05:37 PM
#20
4th Gear Member
Join Date: Jul 2008
Location: NC
Posts: 1,956
But look at the threads where the guys who bought 4.10's hated them and switched to 3.73s. Im not advocating one way or the other, I dont have gears in my car but ive heard from ALOT of people on this site that have owned or currently own 4.10's and alot of them say its not the way to go if you drive hwy alot. Its a matter of opinion, and if people dont voice their opinions than how will the op know what to go with at all? I have said from the beginning go for full exhaust right now than decide on gears after you get a better perspective.
OP 4.10s are an utter mistake for a daily driver, don't listen to drag-strip fools who refuse to accept that some mustang owners want a street friendly car and dont go to the strip once a week. Notice the only defense for 4.10s these people had was gas mileage, well guess what, who the **** said anything about gas mileage when comparing the two? The problem with 4.10s is traction and high RPM's on the highway. After a while it gets really obnoxious having to deal with the noise of the engine with 4.10s on the highway, not to mention extra wear that cruising for hours at those RPM's causes over time. You have an overdrive gear for a reason, not because its perfectly fine to cruise at half your redline for hours on end. Thats the reason they bring up gas mileage, because its the only logical way to defend 4.10s for a daily driver street car(because theres no difference). Here's the facts OP, in order to take advantage of 4.10s you HAVE to have slicks or DR's. So go ahead and tack on the cost of big fat tires ontop of the cost for the 4.10's. Otherwise you will simply spin through any advantage that 4.10s would offer. You will go no faster than if you have 3.73s if you're on street tires. You can mark my words and take that to the bank.
BTW, boduke had it spot on....the rubber hangers are really obnoxious.
Last edited by Hangwire; 09-18-2009 at 05:39 PM.