[02alty driver]

I posted this on another thread but what do the altimas dyno in at, I havn't heard the hp rating for the altima at the wheel and can't do it myself so can some1 tell me?

 

[cmeflyin]

supposedly the closest figure is to take away 18% for the driveline.Not sure if thats man or auto though.

 

[02alty driver]

so the 3.5 only get 196 to the wheel?

 

[SuperRav]

thats not enough guys....i'm power hungry

 

[cmeflyin]

so the 3.5 only get 196 to the wheel?

thats probably pretty close.Possibly a little less as driveline absorption and dyno procedures vary .I own a dodge challenger 440 that makes 485 horsepower and suffer terrible loss through the drivetrain putting only 375 horse to the ground.well more than 20% absorption.

 

[02alty driver]

shyt, that really sucks although it's still more power then all the other cars in it's class, I'd think they'd learn how to get more to the wheel, you lose more then 100 horses in the drive train? dayam!!!

 

[Afty]

thats probably pretty close.Possibly a little less as driveline absorption and dyno procedures vary .I own a dodge challenger 440 that makes 485 horsepower and suffer terrible loss through the drivetrain putting only 375 horse to the ground.well more than 20% absorption.

Rear wheel drive is worse for drivetrain losses as well. The current Mustang Cobra loses 30%, for example.

 

[02alty driver]

that's still mad power loss at the wheel although with that much power, it really doesn't matter but still massive power loss at the drive train

 

[cmeflyin]

supposedly mostly due to my trans.whisch is one of if not the worst power robing trans out there(chrysler 727)

 

[c5hardtop]

Rear wheel drive is worse for drivetrain losses as well. The current Mustang Cobra loses 30%, for example.

The Mustang Cobra loses around 15-18%, same as the mustang GT... Mustang GTs (5-sp) rated at 260hp typcially turn around 225-230rwhp. There were "some" Cobras not putting out the appropraite HP, but that was do other engine factors, not driveline loss. A C5 Corvette also ususlly has around a 15-18% drivetrain loss to.

The first dyno done on a 02 Maxima automatic by a maxima.org member put down 188.9 hp to the wheels. But the dyno was mistakenly done in 2nd gear, I think 3rd would have yeilded better numbers. The shop they when to didn't think so.

 

[Afty]

The Mustang Cobra loses around 15-18%, same as the mustang GT... Mustang GTs (5-sp) rated at 260hp typcially turn around 225-230rwhp. There were "some" Cobras not putting out the appropraite HP, but that was do other engine factors, not driveline loss.

You probably know more about this than I do, but Motor Trend dynoed the Mustang Cobra and the Camaro SS in their issue this month and got a 25% driveline loss for the Mustang. It dynoed at 240 hp and is rated at 320 hp. The Camaro dynoed much higher despite its 325 hp rating, but I think you know the reason for that.

 

[c5hardtop]

You probably know more about this than I do, but Motor Trend dynoed the Mustang Cobra and the Camaro SS in their issue this month and got a 25% driveline loss for the Mustang. It dynoed at 240 hp and is rated at 320 hp. The Camaro dynoed much higher despite its 325 hp rating, but I think you know the reason for that.

I know about that article...there is alot of discussion about that on some forums. Most think it was just b/c of that one dyno (which I believe was a Mustang (brand not related to ford) Dyno). There numbers were they lowest I've ever seen for each car. Their are Many standard LS1 Camaros and Firebirds putting down over 300rwhp on other dynos, not even the the SS and Trans am, just the standard 305hp rated ones. I think it was just and issue with that one dyno, but Mustang dynos are known for being low. Same story with the Cobra... its very low for that car. As you hinted to, The LS1 Fbods should really be rated at around 340-345hp flywheel... C5 Corvettes only slighty underrated mayble 350-355hp... very small difference.

 

[Pervis Ellison]

to cmeflyin....

This has nothing to do with Altimas, but your 440 sounds like a truly bitchin' car. Props to you for keeping a great part of history!

 

[Afty]

Interesting stuff, C5. Thanks for the info.

 

[hee1]

wtf...so the 4banger only get like what...155hp on the wheel?????
damn that sucks..

 

[02alty driver]

4 banger alty only gets like 140 at the wheel

 

[cmeflyin]

Re: to cmeflyin....

This has nothing to do with Altimas, but your 440 sounds like a truly bitchin' car. Props to you for keeping a great part of history!

Thanks man..it's not easy tho when you have to explain why it wont pass [email protected]$$holes even suspended my pl8s cuz of it!!! I got a way out though..antique plates!!!

 

[hee1]

wrong.. 02latydirver..
maybe 140 on other 2.5s but i got some custom made exhaust and intake.. so hopefully that's gonno make atleast 15 more horses

 

[02alty driver]

wrong.. 02latydirver..
maybe 140 on other 2.5s but i got some custom made exhaust and intake.. so hopefully that's gonno make atleast 15 more horses

I'm talking about off the lot, not with mods