blasian

iTrader: (29)

And I'm not being a dick by saying run it at the track and prove it. Also, are you saying that you're the only dyno on this site that has done it with dual exhaust?

I believe ram air helps when a vehicle is in motion, not sitting still.

mbb350z

like i said with the fans blowing u felt an incredible amount of air rushing right on to the filter like an air duct for your house in that case wouldent that help simulate moving am i wrong ?

blasian

iTrader: (29)

I've dyno'd before, I know how it goes

I can't imagine it being close to driving on the streets but its better than nothing. I think a heatshield would be most effective when the hood is closed. When I had the Popcharger I knew it was sucking in hot air but when the hood is opened on the dyno, heat was minimal considering all the heat can escape compared to with the hood being closed.

mbb350z

very true but the ram air would help i feel if the fans are blowing right into it

Peak350

iTrader: (6)

Its not going to give you 50 hp over stock though. 10 hp or so for exhaust (if) and 5 (generous to say 10) for intake, on dyno that would see 255 stock....275 would be excellent. 30 hp higher makes us skeptical. You don't just get 10 percent from nothing. I'd like to see it on a dynojet showing the cf. Another car running same day (with a track or dyno history) would be helpful as well.

mbb350z

I agree I understand what you guys are saying i watched about 10 cars go and no one was reading high numbers.. so if the dyno was off all the cars would have been marked up 35 hp aprox. If i just posted this with out the sheet u guys would say u want to see the dyno sheet i posted with the sheet and everyone wants a new sheet its funny.

Cadre

Nice numbers. Looks like you might have a factory freak.

Motormouth

iTrader: (44)

I just doubt that ram air has that much of an effect to create an extra 20+whp over similar HR Zs at less than the speed of sound unless you DID have a rocket engine strapped to your Z? and I thought you needed to be going around 60mph for ram air to even start working noticeably, that is a very high velocity for the air to be traveling and I think the fans normally used are for cooling and not for creating a simulated air flow for the engine. (could be wrong)

and that dyno looks ridiculous to me. I don't see many mustang dynos so maybe that is it, but the whole graph is peaky/bumpy as hell.

mbb350z

they had some pretty big blowers set up in a sound proof booth it was quite the setup i cant lie. What ever it is, it is what it is

mbb350z

thanks cadre

07JimmyZ

iTrader: (18)

Do you have any pics of your setup?

mbb350z

ill see if i can post some pics soon

Motormouth

iTrader: (44)

can you get redyno'd somewhere else?

SOLO-350Z

iTrader: (26)

Then that would have helped my 99 TransAm with the Ram Air hood......but it didn't. You actually make less power on the dyno than on the highway with air being rushed in.

Hoooper

iTrader: (5)

you do realize that ram air is just a selling point and that it actually makes little to no horsepower difference right? think, 2.75% pressure difference at 150mph. so lets say the fans were blowing hurricane force and you were picking up an extra 1%, thats a whole 2-3 hp for you, not the 30 or more that you need

http://forums.corvetteforum.com/show...air&forum_id=1

Edit: this is assuming that the fans werent blowing at 300mph

Motormouth

iTrader: (44)

and that he didn't have a jet engine strapped to his car, attached to the dyno, flying in the air.

Peak350

iTrader: (6)

I'm just going to give up. People want to believe what they want to believe. The velocity in the intake tube isn't going to be changed vastly by a .2 psi increase in relative pressure from ram air, in fact it might result in a couple hp if anything, fans are hardly going to get near .1 psi of pressure and thus the point of ram air helping on a dyno is moot. Something is fishy, not saying the OP didn't get his car dynoed and receive that sheet, but I don't believe in factory freaks, and there is nothing special about a 2.5" dual exhaust that gives magical power levels over every other 2.5" exhaust.

blasian

iTrader: (29)

+1

I mean if a Mustang dyno is supposed to be low reading like a DD and the highest DD I've seen on an HR is like 260 on a DD...

Looks like I need a

Peak350

iTrader: (6)

I've got some experience with Mustangs, and they can read anywhere from a couple hp off of a dynojet, to as low as a dynodynamics - but if they are miscalibrated that can also read high.

Regardless. As someone at the track in a pro-street car told me "Getting your car strapped down and dynoed to know what kind of power you have is only going to let you compare your cars ability to impress a computer in certain conditions, running it down the 1320 is going to show how well you can harness the power the car makes."

I want to dyno my car before and after a nitrous setup...a turbo setup, etc., for tuning, just like they were originally intended, NOT for purposes of comparing #'s because no 2 dynos are going to read the same.

singh

iTrader: (2)

It would be funny if you say you have 305whp and you aren't able to get 12 second timeslips.

Two scenarios if you can't get a 12 second timeslip:

1. You don't have 305whp.
2. You don't have 305whp.