Ford Mustang Forum banner

1 - 20 of 29 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter #1
New to mustangs, came out of a BMW 335i which put down around 410. Saw the crazy bolton power the coyote motors were capable of and just had to have one. I was hoping for atleast 365 rwhp stock and was thrilled when I put down 376 with only 800 miles. How much power should I put down with these boltons that are going in next week:

Boss 302 manifold
3.73 gears
Kooks longtubes
Kooks catback o/r x pipe
JLT intake
Gonna be tuned by the Jon Lund guy who I've been reading is one of the best out there.

Heres a short dyno vid

YouTube - ‪2012 Mustang GT Dyno (stock)‬‏
 

·
Registered
Joined
·
412 Posts
Well, you are going to lose torque with the manifold so I don't know why you went that route, but the headers might help. Your top end numbers will definitely go up, so I hope you drive around at 6-7,000 r.p.m.'s all the time.
 

·
Registered
Joined
·
79 Posts
i bet you will be around 430-440 but it will be at the very top of the rpm range
 

·
Registered
Joined
·
6 Posts
Discussion Starter #4 (Edited)
Well, you are going to lose torque with the manifold so I don't know why you went that route, but the headers might help. Your top end numbers will definitely go up, so I hope you drive around at 6-7,000 r.p.m.'s all the time.
I'm sure I'll still make a good amount of torque with the other mods... There's a couple with the boss intake and some other mods putting down 385rwtq which is really good IMO.

YouTube - ‪2011 Mustang GT 5.0 Bolt ons Dyno‬‏

Description: Boss 302 manifold, JLT Intake, Lethal off road X-pipe, Custom tuned 427RWHP 385RWTQ
 

·
Registered
Joined
·
2,396 Posts
I seen 375 with the Boss intake, C&L intake, Kooks headers, Catted H-pipe from Kooks and an e-mail tune... doesn't matter what brand or flavor or written by whom, an e-mail tune is an e-mail tune... being from bama, brenspeed or lund...
spending all of that money on mods... sounds crazy to e-mail tune it...
The 376 sounds a little high for stock, but a chassie dyno is for base line anyway not a written in stone that is what it is... with the parts listed... a major lose in low end torque and an increase in HP past the designed red line of the engine... don't believe me, put it all on and find out...

I would post my dyno sheet but adding attachments seems to be a problem...
 

·
Registered
Joined
·
6 Posts
Discussion Starter #6
I seen 375 with the Boss intake, C&L intake, Kooks headers, Catted H-pipe from Kooks and an e-mail tune... doesn't matter what brand or flavor or written by whom, an e-mail tune is an e-mail tune... being from bama, brenspeed or lund...
spending all of that money on mods... sounds crazy to e-mail tune it...
The 376 sounds a little high for stock, but a chassie dyno is for base line anyway not a written in stone that is what it is... with the parts listed... a major lose in low end torque and an increase in HP past the designed red line of the engine... don't believe me, put it all on and find out...
Yeah if I'm not satisfied with the numbers then I will get a Custom dyno tune. Probably from Manny at HPP racing.
 

·
Registered
Joined
·
2,396 Posts
One more try on posting dyno numbers... all three runs are about the same... this was the best one out of the three
 

Attachments

·
Registered
Joined
·
352 Posts
One more try on posting dyno numbers... all three runs are about the same... this was the best one out of the three
Is this with your mods? If so, did you do one before you put on your mods? Like you (or someone) said before, a dyno is only a tool. That dyno may read really low. With the mods you have you should be over 400rwph easily. I would really like to see a before and after comparison (same dyno) to really know the difference. Just doing an after and comparing to everyone elses isn't the right way to do it. If you didn't gain anything after the mods, I would go somewhere else for my tune.

As far as an email tune for basic mods, they are usually just as good as a dyno tune. You might get a couple of extra HP maybe from a dyno tune. You have to remember that most of these BIG shops are doing 100's of dyno tunes on actual cars to be able to write the email tunes. I have had a couple of email tunes and then took it to the dyno. They said they wouldn't change a thing. Now if you are getting into more exotic mods to the motor, sure you should get a dyno tune.

To the OP the only thing I would think hard about is the manifold. You are going to lose some down low (that's where we feel it and the fun factor comes in) and will only gain once you are 6500rpm+. I have done a lot of research as I wait for my '12 to get here and that is what all the research is telling me. I have even seen some of the guys on other forums that race the car quite a bit take them off because of the loss down low (getting off the line is most of the battle).

Just my .02. Enjoy your car and have fun!!!
 

·
Registered
Joined
·
437 Posts
Can we have one thread where someone mentions they're getting a Boss Intake where every response isn't berating the guy for making such a terrible decision? I don't know what dyno graphs you guys have been looking at but the loss in torque is minimal on most of the ones I've seen. 20 wtq at 4k rpms is nothing. I don't know how you guys drive on the street but I don't see how a small loss in torque at 4k is going to make any difference whatsoever. Do you just go WOT 3k to 5k and short shift every gear? If so, you're already leaving a ton of power on the table so why do you care if you lose 20 wtq when you're losing 50whp or more by shifting so early?

If I'm going WOT, I mean it and I'm going to redline. Any other situation where I'm not going all out I'm only at half throttle anyway so I'm already not using all of the available power, so losing a little bit of max power at low rpms wouldn't matter since I'm not using max power anyway. A Boss Manifold is going to be my next mod and I'm really looking forward to it.

To the OP, there was a car with those same mods plus cams and throttle body that was putting down just over 500whp. I would guess you'd be in the 440-450whp range with those mods, with the peak being around 7200rpm.
 

·
Registered
Joined
·
352 Posts
Can we have one thread where someone mentions they're getting a Boss Intake where every response isn't berating the guy for making such a terrible decision? I don't know what dyno graphs you guys have been looking at but the loss in torque is minimal on most of the ones I've seen. 20 wtq at 4k rpms is nothing. I don't know how you guys drive on the street but I don't see how a small loss in torque at 4k is going to make any difference whatsoever. Do you just go WOT 3k to 5k and short shift every gear? If so, you're already leaving a ton of power on the table so why do you care if you lose 20 wtq when you're losing 50whp or more by shifting so early?

If I'm going WOT, I mean it and I'm going to redline. Any other situation where I'm not going all out I'm only at half throttle anyway so I'm already not using all of the available power, so losing a little bit of max power at low rpms wouldn't matter since I'm not using max power anyway. A Boss Manifold is going to be my next mod and I'm really looking forward to it.

To the OP, there was a car with those same mods plus cams and throttle body that was putting down just over 500whp. I would guess you'd be in the 440-450whp range with those mods, with the peak being around 7200rpm.
Must have Boss intake envy, lol!!

Honestly 20rwtq isn't that much but show me where they made much more rwhp over stock up until close to 7000rpm. If you are going to throw some cams on it, sure then the intake can make it breath better.

I wasn't bashing him or saying it was a terrible decision, just that I wouldn't do it if it was me. This is a forum and we all have our opinions. You would have to show me some dyno sheets with just the intake and a CAI, headers and tune where it made much difference over the stock one. And magazine dyno sheets don't count, real ones on a forum. If I am only going to gain above 7000rpm's and lose some torque, well I wouldn't do it. Again, just me.

I wish it was a little better because there are some pretty good sales on them right now and I would love to get one.

Good luck OP with any choice you make. It's your car and you have to be the one happy with it.
 

·
Registered
Joined
·
437 Posts
Every dyno chart I've seen has you start gaining HP from 5500 on. And above 7000 it's a crazy increase over stock, like 50hp. Pretty much anyone with an aftermarket tune already has an increased redline anyway, so it's not like you're revving higher with the Boss. You just keep making power all the way to redline.

 

·
Registered
Joined
·
352 Posts
Here is a pretty close comparison to what the OP is looking to do. This was done by Woodbine Motorsports in MD. They did all their own testing on their car with their equipment. Not only do you lose torque down low but also HP.

From the other site:
"Attached is the dyno sheets showing our best run with the stock manifold, dynatech LT's with catless mids, JLT CAI and our tuning against the same combination with the Boss 302 Intake manifold.

I know these arent the peak numbers everyone including myself were hoping for but for an initial dyno session with a new intake manifold they are very promising especially after 6500 rpms. More tuning will be done and more results are forthcoming thats for sure."

Again, you can see that the HP and TQ are lower all the way to 5700. They then are the same until 6700 where the Boss finally starts to improve. So unless you are going to rev this past 7000rpm's, again, not really worth it to me.
 

Attachments

·
Registered
Joined
·
352 Posts
Every dyno chart I've seen has you start gaining HP from 5500 on. And above 7000 it's a crazy increase over stock, like 50hp. Pretty much anyone with an aftermarket tune already has an increased redline anyway, so it's not like you're revving higher with the Boss. You just keep making power all the way to redline.

Funny, found the thread where you got this. Notice the disclaimer on the bottom:
"Disclaimer: This comparison is in no way scientific. It is not same day/same car. Only same dyno on completely different days and weather conditions. It does give us a vague idea on what the gains may possibly be compared to a mostly stock car. Not accurate, but useful enough to give us trend."

These two dyno runs aren't even the same car or the same day. The one I put up is the same car same day. I guess you can find info to support whatever argument you are trying to prove right. Please make sure to provide the "small print" items as well.

I think the one I posted is a lot more accurate.
 

·
Registered
Joined
·
437 Posts
The one you posted is also before they were done tuning for the intake. That's right there in the small print you provided.

Ugh, sorry, I didn't mean to turn this into another Boss Intake debate. I was just wishing people would respond to the OP without throwing in some criticism of "I don't know why you'd get the Boss Intake." If you don't want it, fine, but no need to tell everyone else they shouldn't get it. Personally, my car hits redline just about every single time I drive it. If I babied it and never ran it hard, then I probably wouldn't be modding at all, or would have just bought something with less power in the first place. But for someone who drives their car hard at the track or on the street, I think the Boss Intake is worth it.
 

·
Registered
Joined
·
352 Posts
The one you posted is also before they were done tuning for the intake. That's right there in the small print you provided.

Ugh, sorry, I didn't mean to turn this into another Boss Intake debate. I was just wishing people would respond to the OP without throwing in some criticism of "I don't know why you'd get the Boss Intake." If you don't want it, fine, but no need to tell everyone else they shouldn't get it. Personally, my car hits redline just about every single time I drive it. If I babied it and never ran it hard, then I probably wouldn't be modding at all, or would have just bought something with less power in the first place. But for someone who drives their car hard at the track or on the street, I think the Boss Intake is worth it.
If you read the rest of the thread, you will see that they didn't get any better pulls.

And it is still funnier than **** that you would put up a comparison dyno that isn't even the same car, but two different cars, LMFAO!!!

Like I said, if you are going to live above 7000rpm, then it is worth it. If you aren't going to be spinning it that far, then IMHO it isn't worth it.

I have said all along that it is his car and he can do what he wants. You are the one that came in here and started to blast us that said we didn't think it was worth it.

If you are happy with your car, that is all that matters. If I ever go with cams or a centri SC I would probably get a Boss. I will probably go straight to a PS SC once I get done with tune/CAI and some other small mods though so probably won't see one.

Each to his own and have fun!!!
 

·
Registered
Joined
·
22 Posts
I think that the intake is 100% worth it, or I wouldn't have bought it. I have a 2012 M6, Brembo package. Stock with 1000 miles put down 389/375 on a mustang dyno. The car was fun to drive, but it was nothing like what I was use to. So I installed the intake, BBk lt, o/r X, JLT cai, bama tune. The car pulls hard from 3K up. I don't believe for a second that guys that race there car(real racers) at the track would take the intake off because they lost so much down low. that has to be the funniest thing I have heard in a long time. Thanks for the laugh!
I wish you lived close to me so I could take you for a ride! You would **** yourself and have the biggest ear to ear grin. Then Dial up American Muscle and order everything i did. Stock vs modded you will not lose any I repeat any torque down low. I will prove it as soon as I can get back on the dyno to see how much she has picked up.
 

·
Registered
Joined
·
352 Posts
I think that the intake is 100% worth it, or I wouldn't have bought it. I have a 2012 M6, Brembo package. Stock with 1000 miles put down 389/375 on a mustang dyno. The car was fun to drive, but it was nothing like what I was use to. So I installed the intake, BBk lt, o/r X, JLT cai, bama tune. The car pulls hard from 3K up. I don't believe for a second that guys that race there car(real racers) at the track would take the intake off because they lost so much down low. that has to be the funniest thing I have heard in a long time. Thanks for the laugh!
I wish you lived close to me so I could take you for a ride! You would **** yourself and have the biggest ear to ear grin. Then Dial up American Muscle and order everything i did. Stock vs modded you will not lose any I repeat any torque down low. I will prove it as soon as I can get back on the dyno to see how much she has picked up.
You installed everything at once so hard to say it was just the intake.

Here is one link that a "real" racer took it off and sold it because of what he was losing down low. WWW.S197FORUM.COM

There are others.

For some setups it works great, for others, not so great. It all depends on what you want to do with your car and where/how you drive it. For 99% of us, we will be below red line 90%+ of the time.

If it works for you, great!! I can think of better things to do with $400 in my opinion.
 

·
Registered
Joined
·
253 Posts
I seen 375 with the Boss intake, C&L intake, Kooks headers, Catted H-pipe from Kooks and an e-mail tune... doesn't matter what brand or flavor or written by whom, an e-mail tune is an e-mail tune... being from bama, brenspeed or lund...
spending all of that money on mods... sounds crazy to e-mail tune it...
The 376 sounds a little high for stock, but a chassie dyno is for base line anyway not a written in stone that is what it is... with the parts listed... a major lose in low end torque and an increase in HP past the designed red line of the engine... don't believe me, put it all on and find out...

I would post my dyno sheet but adding attachments seems to be a problem...
If you've seen only 375 with mods that you listed, this mustang probably had only 345+ hp then. Headers, (if they're long tube), catted H pipe and a tune would add probably 25+ rwhp alone, at least.
 
1 - 20 of 29 Posts
Top