05 GT, M5 Dyno.
Re: 05 GT, M5 Dyno.
Mine Dynoed 264hp when it was stock...........haven't done it since......
Good to know that I'll be able to keep ahead of the new GT's.
Although it's never been much of a problem with stock Mustangs.........
Good to know that I'll be able to keep ahead of the new GT's.

Although it's never been much of a problem with stock Mustangs.........
Re: 05 GT, M5 Dyno.
Those example were of pre-01' LS1s.
LS1s with the LS6 intake tend to dyno a little higher.
Here is a bone stock 99' SS dyno.

Given that 01-02 LS1s can dyno as much as 20rwhp higher on dynojets, I'd say it's more in the 285-300rwhp range on a mustang dyno for those years. M6
LS1s with the LS6 intake tend to dyno a little higher.
Here is a bone stock 99' SS dyno.

Given that 01-02 LS1s can dyno as much as 20rwhp higher on dynojets, I'd say it's more in the 285-300rwhp range on a mustang dyno for those years. M6
Re: 05 GT, M5 Dyno.
Mustang dyno, Dynojet dyno.....it isn't that impressive. For it to run with LS1s in stock form it is going to need some pretty stout gearing if this is more the norm...
It's interesting how MT goes 13.6@100 in a GT and we get posts saying with a simple tune the GT will break into the 12's, now we see a dyno result that relieves Chevy guys...how about we wait a few months and see these things in the hands of real drivers and see what they'll average. All this information is quite conflicting.
It's interesting how MT goes 13.6@100 in a GT and we get posts saying with a simple tune the GT will break into the 12's, now we see a dyno result that relieves Chevy guys...how about we wait a few months and see these things in the hands of real drivers and see what they'll average. All this information is quite conflicting.
Re: 05 GT, M5 Dyno.
250rwhp on a stock LT1? My friend dynoed at like 283 or something like that... alls he had was an intake and gutted cat. Then he got a tune and some LT's and now he does 310/350
Do 96-97 WS6 M6's typically dyno higher then 93-95 M6's?
Do 96-97 WS6 M6's typically dyno higher then 93-95 M6's?
Re: 05 GT, M5 Dyno.
Originally Posted by ChrisUlrich
250rwhp on a stock LT1? My friend dynoed at like 283 or something like that... alls he had was an intake and gutted cat.
Re: 05 GT, M5 Dyno.
Given that 01-02 LS1s can dyno as much as 20rwhp higher on dynojets, I'd say it's more in the 285-300rwhp range on a mustang dyno for those years. M6[/QUOTE]
Which probably means that the car is putting out 275rwhp and 295rwtq on a dynojet, exactly what we had posted originally when guys at Steeda dynoed it.
In the end, when looking at it from a "talk the talk/walk to walk" perspective, the dyno values are just "talk" since there are many other factors involved (ie. traction). Its the 0-60 and quarter mile times that do the walking. And so far, 13.6sec with the auto from a magazine not known for getting the fastest times is definately saying a lot for the new mustang.
Which probably means that the car is putting out 275rwhp and 295rwtq on a dynojet, exactly what we had posted originally when guys at Steeda dynoed it.
In the end, when looking at it from a "talk the talk/walk to walk" perspective, the dyno values are just "talk" since there are many other factors involved (ie. traction). Its the 0-60 and quarter mile times that do the walking. And so far, 13.6sec with the auto from a magazine not known for getting the fastest times is definately saying a lot for the new mustang.
Re: 05 GT, M5 Dyno.
Given that 01-02 LS1s can dyno as much as 20rwhp higher on dynojets, I'd say it's more in the 285-300rwhp range on a mustang dyno for those years. M6
Which probably means that the car is putting out 275rwhp and 295rwtq on a dynojet, exactly what we had posted originally when guys at Steeda dynoed it.
In the end, when looking at it from a "talk the talk/walk to walk" perspective, the dyno values are just "talk" since there are many other factors involved (ie. traction). Its the 0-60 and quarter mile times that do the walking. And so far, 13.6sec with the auto from a magazine not known for getting the fastest times is definately saying a lot for the new mustang.
Which probably means that the car is putting out 275rwhp and 295rwtq on a dynojet, exactly what we had posted originally when guys at Steeda dynoed it.
In the end, when looking at it from a "talk the talk/walk to walk" perspective, the dyno values are just "talk" since there are many other factors involved (ie. traction). Its the 0-60 and quarter mile times that do the walking. And so far, 13.6sec with the auto from a magazine not known for getting the fastest times is definately saying a lot for the new mustang.
All I see and hear from these cars is low 14 runs thus far. Only MT managed to get a sub 14 run with a rather agressive start and a likely prepped track.
Last edited by Schismblade; Oct 2, 2004 at 06:47 PM.
Re: 05 GT, M5 Dyno.
Originally Posted by Schismblade
Eh, not 295torque...no way.
All I see and hear from these cars is low 14 runs thus far. Only MT managed to get a sub 14 run with a rather agressive start and a likely prepped track.
All I see and hear from these cars is low 14 runs thus far. Only MT managed to get a sub 14 run with a rather agressive start and a likely prepped track.
Secondly, I don't get you're point about the MT time. They achieved 13.6sec (which is slightly <sarcasm> below 14 seconds) ....another FACT.
Third, since when do you baby it out of the hole when doing a 1/4 mile run?
Re: 05 GT, M5 Dyno.
Originally Posted by Schismblade
Eh, not 295torque...no way.
All I see and hear from these cars is low 14 runs thus far. Only MT managed to get a sub 14 run with a rather agressive start and a likely prepped track.
All I see and hear from these cars is low 14 runs thus far. Only MT managed to get a sub 14 run with a rather agressive start and a likely prepped track.
You hear low 14's thus far? How many reports have you seen other then that video that never showed the et? To my knowledge MT is the first to post any times from a car they actually drove. Everyone else used estimates.
Re: 05 GT, M5 Dyno.
Why doesn't everyone wait to see more times?
IMO it looks like it will be a solid 13 second car. Those hp numbers may have put an 04 GT lower than that, but the new one gained some weight too. I predict high 13s on average stock, anyway. What I would be more interested in is how easy they are to work on, reliability, responsiveness to mods, handling, etc. Everybody beats a few tenths to death and forgets the rest of the car. Anyway, it won't be an LS1 killer, but it looks like stock LT1s better look out- if there's any stock ones left
IMO it looks like it will be a solid 13 second car. Those hp numbers may have put an 04 GT lower than that, but the new one gained some weight too. I predict high 13s on average stock, anyway. What I would be more interested in is how easy they are to work on, reliability, responsiveness to mods, handling, etc. Everybody beats a few tenths to death and forgets the rest of the car. Anyway, it won't be an LS1 killer, but it looks like stock LT1s better look out- if there's any stock ones left
Re: 05 GT, M5 Dyno.
This was on a Mustang dyno which is important because they typically measure lower than a dynojet. Keep in mind Mustang dynos will have a wider variation in their results beacuse of the way it works. Dynojets are better for bench racing but still have too many variables between tests and really shouldn't be used like they are.
Originally Posted by Snorman
This is pretty funny, because the dyno sheet clearly shows it was on a Mustang Dyno. Because of the eddy current motor that simulates load, the results on a Mustang Dyno will be lower.
Stock ‘03/’04 Cobras usually dyno in the 330rwhp range on a Mustang Dyno, and 360+rwhp on a Dynojet.
This link explains the difference between a Mustang Dyno and a Dynojet. Pretty simple…the Mustang Dyno uses an eddy current motor that simulates load as the car is accelerated.
Chevy High Performance did a Mustang Dyno and Dynojet comparison, which clearly illustrated the differences.
This is an interesting link. It shows a Mustang Dyno sheet for a Mach I and compares the same car on a Dynojet.
An LS1 owner in this thread made 274rwhp on a Mustang Dyno.
This thread clearly illustrates the differences between a Mustang Dyno and a Dynojet.
Numerous examples of LS1’s on a Mustang Dyno.
Seems like most stock LS1's dyno around 270-280rwhp on a Mustang Dyno, which would put an LS1 about 20-30rwhp higher than the new Mustang GT.
Those look like some pretty damn good results to me. It's hard to exactly convert to Dynojet numbers, but the general concensus seems to be around 8-10%. The best way would be to put the car on a Dynojet and make a pull. I'd bet around 270-280rwhp SAE corrected.
S.
Stock ‘03/’04 Cobras usually dyno in the 330rwhp range on a Mustang Dyno, and 360+rwhp on a Dynojet.
This link explains the difference between a Mustang Dyno and a Dynojet. Pretty simple…the Mustang Dyno uses an eddy current motor that simulates load as the car is accelerated.
Chevy High Performance did a Mustang Dyno and Dynojet comparison, which clearly illustrated the differences.
This is an interesting link. It shows a Mustang Dyno sheet for a Mach I and compares the same car on a Dynojet.
An LS1 owner in this thread made 274rwhp on a Mustang Dyno.
This thread clearly illustrates the differences between a Mustang Dyno and a Dynojet.
Numerous examples of LS1’s on a Mustang Dyno.
Seems like most stock LS1's dyno around 270-280rwhp on a Mustang Dyno, which would put an LS1 about 20-30rwhp higher than the new Mustang GT.
Those look like some pretty damn good results to me. It's hard to exactly convert to Dynojet numbers, but the general concensus seems to be around 8-10%. The best way would be to put the car on a Dynojet and make a pull. I'd bet around 270-280rwhp SAE corrected.
S.

and that 3550 lbs (without driver or added testing equipment) is bordering on shameful...the weight i had in mind was 3425-50 lb...I worry that a future cobra with IRS and a larger DOHC or blown engine could easily cross over the 3700 plateau, without some significant dieting measures
Last edited by Magnum Force; Oct 2, 2004 at 11:28 PM.
Re: 05 GT, M5 Dyno.
Originally Posted by Magnum Force
thanks for that info...all this time i was never really sure of the differences 
and that 3550 lbs (without driver or added testing equipment) is bordering on shameful...the weight i had in mind was 3425-50 lb...I worry that a future cobra with IRS and a larger DOHC or blown engine could easily cross over the 3700 plateau, without some significant dieting measures

and that 3550 lbs (without driver or added testing equipment) is bordering on shameful...the weight i had in mind was 3425-50 lb...I worry that a future cobra with IRS and a larger DOHC or blown engine could easily cross over the 3700 plateau, without some significant dieting measures
That weight is incorrect.
The 2005 Mustang GT weighs 3450lbs. Confirmed in the chief engineers presentation I attended. Not much more than a Mach 1.


