Got some numbers finally

[VertTireSmoke]

Went this past friday to a local shop, Excessive Motorsports, to get my car dynoed. Just wanted to see some numbers. Guys there really know what they are doing. Put down 269HP and 269Torque. All in all i think its not bad for a prety much stock cobra. Any way here are some pics, a vid , and the dyno sheet. Enjoy. Comments always welcome. Oh and can anyone see the newest edition to teh cobra?

On the dyno:

Video:


The sheet:

 

[uncltrvlnmatt]

Re: Gome some numbers finally

Nice numbers for a stock Cobra. I hope mine is in that area when I get her dyno'd. :thumb:

 

[VertTireSmoke]

Re: Gome some numbers finally

Yep. Im very satified with it. They said usually stock our cars put down anywhere between 265-275. So im right in the middle.

 

[Lightning Struck]

Re: Gome some numbers finally

well I wouldn't call your cobra STOCK you have a JLT / mid pipe and exhaust so that is going to net you a little on your RWHP .......BUT those 430's ( depending on what you read) could be hurting your numbers. I dont know exactly how but I remember reading a write up somewhere ( SVTP I think ) about how steep gears hurt dyno numbers :dunno: :dunno: there was a formula and all kinds of numbers and stuff to support this theory. Nice numbers though

 

[VertTireSmoke]

Re: Gome some numbers finally

well I wouldn't call your cobra STOCK you have a JLT / mid pipe and exhaust so that is going to net you a little on your RWHP .......BUT those 430's ( depending on what you read) could be hurting your numbers. I dont know exactly how but I remember reading a write up somewhere ( SVTP I think ) about how steep gears hurt dyno numbers :dunno: :dunno: there was a formula and all kinds of numbers and stuff to support this theory. Nice numbers though

Yeh i remember reading that article too. Well maybe not completely stock but Id say MOSTLY stock. Gears, exhaust and an intake are just givens on our cars. lol.

 

[Mr Jones 4.6]

Man your car sounds good and make some awesome power. I read the article too and with your 4.30's if I remember correctly the rwhp would probably be around something like 8-14 more hp I think. So I would say your car is making very good power for just the few bolt ons you have. love the taillights they really look good on the car too.

 

[19mustang95]

i would think your car should be in the ~280 rwhp range... :dunno:

 

[94darkhorse]

Not bad!

 

[Hellion94]

Nice Numbers by the way. 269 RWHP equates to about 335-6 at the flywheel, so that's pretty good.

 

[Lightning Struck]

Nice Numbers by the way. 269 RWHP equates to about 335-6 at the flywheel, so that's pretty good.

I totaly disagree with that, your using a 20% drivetrain Loss and for the most part I think thats what is normally accepted as correct but if you do a little research on this subject you will find that may PRO"S in the performacne business thinks that using a % for drivetrain loss is a VERY flawed method for determing flywheel HP. I dont think there is a increased loss in power Thur the drivetrain just because there is a INCREASE in power at the motor. I may be wrong but thats what I think........I would have to go back and find all those write ups and articles on this subject, but trust me there are a LOT OF THEM. Even so I think using the 20% for a manual trans would be too high anyway, 5speeds would be in the 15% area and a AUTOMATIC in the 20% area. Again thats IMO and could be wrong, but I'm going off what I have read over the years.

Look at it this yay......lets use that 20% you quoted and put that on my Lightning, my STOCK dyno was 351rwhp so that would mean its putting out 440HP ( thats 60 over factory rating ) and thats with my automatic. See what I'm getting at??? I DO remember reading that for a typical mustang with a manual trans that a 35hp loss Thur the trans was a pretty good average loss on any car weather is 200hp or 500hp.........what do you guys think?

on a side note I would LOVE to believe that a 20% loss ( or more ) was true on my L, if that WERE true and I get sayyyy 440 on the dyno next week that would mean that I have 550 flywheel hp :bunny3: :dancing6: :bunny3: :dancing6: but who knows :dunno: I read a post on www.nloc.net by a guy that said the L's only loose 12% from motor to wheels :-\

 

[TxCobrA98]

good numbers vert! my car dyno'd at 261/260 so i guess im a bit underpowered because i have the same mods as you.. except the JLT. (FOR NOW O0)

i would just take a guess that you got new tail bezels?

 

[scarface]

Vert, I wish I had known you were at excessive...I would have come up there! Eventually I will have my car tuned there also.

 

[Mr Jones 4.6]

by the way your car should run real good at the track!!! Good driver should equal around lowlow 13's...maybe? If not better with traction.

 

[VertTireSmoke]

]
good numbers vert! my car dyno'd at 261/260 so i guess im a bit underpowered because i have the same mods as you.. except the JLT. (FOR NOW O0)

i would just take a guess that you got new tail bezels?

Yeh JLT should help. Have u gotten it in yet? Should be in by now.

Vert, I wish I had known you were at excessive...I would have come up there! Eventually I will have my car tuned there also.

Yeh it was a kinda spur of the momnt thing. Guys there are really cool and know their shit.

by the way your car should run real good at the track!!! Good driver should equal around lowlow 13's...maybe? If not better with traction.

lol. If u saw a post i made a while ago i took it to the track a week or 2 ago and only managed a 14.001. I think I'm taking it back up the 20th for the very last test and tune of the season. Hoping to at least get into the 13's since i don't have radials yet.

 

[TxCobrA98]

hasn't come in yet.. i haven't talked to my parents today at all though so it may have come in today. ill let you know when i get it. O0

 

[VertTireSmoke]

]
hasn't come in yet.. i haven't talked to my parents today at all though so it may have come in today. ill let you know when i get it. O0

Alright man sounds good.