Jump to content
SAU Community

Recommended Posts

it seems like dynodynamics on shootoutmode is the popular choice for a dyno readout but ive heard recently that autosalon changed their dyno to a mainline dyno . which one is more accurate?

two different dyno's (mainline and dyno dynamics) in the same city (around 5 klms apart), two days apart with similar barometric conditions. read within less than 1% of each other. With the same vehicle.

Not bad eh!....pretty acurate

ive heard recently that autosalon changed their dyno to a mainline dyno . which one is more accurate?

and yeah, just on that... the Cabin group have been using mainline dynos since 2002/3.

So its far from "recent" news

two different dyno's (mainline and dyno dynamics) in the same city (around 5 klms apart), two days apart with similar barometric conditions. read within less than 1% of each other. With the same vehicle.

Not bad eh!....pretty acurate

Where?..which dynos? Anytime I have seen the same car go on a dynolog and then a dynamics, the dynamics always reads about 10-15% higher.

Where?..which dynos? Anytime I have seen the same car go on a dynolog and then a dynamics, the dynamics always reads about 10-15% higher.

Croydons...then Autosalon....and it was Stacey's car...so i should know.

Edited by DiRTgarage
Croydons...then Autosalon....and it was Stacey's car...so i should know.

I didn't say you didn't...but I think Cabin must have a 'special' version of the Dynolog software.

I know of a wrx that made 20% more power on CRD's dyno in the afternoon than it made on a Dynolog in the morning. There were no changes in between. Had the same tank of juice and all.

All the other dynologs I've seen read very similarly (comparing the same cars on different days)

did you record the temps on that day?

you said morning and arvo... so my bet there could have been a reasonable temp difference.

end of the day, does it really matter? anyone can can get any figure if you need too

did you record the temps on that day?

you said morning and arvo... so my bet there could have been a reasonable temp difference.

end of the day, does it really matter? anyone can can get any figure if you need too

Yep...it was slightly warmer in Syd than the gong...only a degree or 2.

Yep..I agree

I didn't say you didn't...but I think Cabin must have a 'special' version of the Dynolog software.

I know of a wrx that made 20% more power on CRD's dyno in the afternoon than it made on a Dynolog in the morning. There were no changes in between. Had the same tank of juice and all.

All the other dynologs I've seen read very similarly (comparing the same cars on different days)

Well how does this grab ya...Carlos from Millenium Motorsports ran 599kw at Queensland 2 days before Autosalon on his Mainline dyno...and at the same boost levels ran 601kw on Autosalon's dyno.....he must have the "special" software too!

Mainline dyno's even run the same no matter if its 2WD or 4WD...we proved it in front of hundreds of people at Final Battle...there was 1kw difference between the runs.

I think what Mik is trying to say is Croydon's dyno is happy...if its so happy i should be rolling almost 520AWKW......i think im gonna have a word to Jim about my deflated power figures.

Edited by DiRTgarage
I Have seen IDENTICAL results on two different dynologs equate to 40awkw more on two different dynodynamics dynos in an unchanged trim/tune. Just my experience.

highly experienced acredited operators should not have such a discrepancy...as essentially the dyno's use similar hardware.

Edited by DiRTgarage

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • The SS button head cap screw on the back? If so, good to know. I presumed it was there for basic assembly and nothing more. 
    • Hello, everyone. I'm new to the forum. I have a 1989 Nissan Skyline R32 GTR. I have lost all power to the interior, including AC controls, the gauge cluster, turn signals, and windows. Stuff that still works includes the horn, brake lights, radio, and headlights. All fuses, in the interior and exterior boxes, tested good.  It starts and runs fine, just with no gauge power or anything stated above. No warning lights either. Things that I have tested: - Fusable link tested fine - No other fuses blown - Alternator good - IGN switch tested fine - With my power probe, I can backfeed power through the IGN pin to the plug on the back of the gauge cluster, and everything comes back on.    So my theory is something on the control side that sends the ignition power through the system isn't doing its job, or a wire is broken. (I would think that it is the ignition switch that would do that, but who knows?). The ignition relays don't fire (all relays tested good). So what tells them to fire other than the IGN switch?  I would really appreciate it if someone had some insight on this. I have tons of hours into this; I don't want to give up in defeat! I have the HD wiring diagram, but having all those wires laid out like that on one sheet of paper makes things pretty hard to follow.  Thanks for reading, and thanks for the replies.  Where should I look next? Thanks.
    • Install a MAP sensor pre and post throttle. Best data you could have for NA, then play with the bends and/or air box and see how much of inflection is created at WOT on the plot.
    • And gone to a new home  
    • The car remains in paint jail. I am now pretty convinced that the whole "RB25 Airboxes are kinda limiting to ~300kw" could be a thing. Also saw a good video from Engine Masters: (Sorry for FB link) (https://www.facebook.com/watch/?ref=search&v=761771519471924&external_log_id=c10bcbb6-2c39-4ff3-9240-287e9921fde6&q=Cold Air Considerations) Where they tested Pod Filter sizes and kept adding bends to a LS3 on an Engine Dyno to find if bends caused power loss. It's a good video worth watching - They did lose ~25hp from making an intake which had 3x90's and a 120 degree. They only lost maybe 1hp with a basic 90. I feel that by sealing up my airbox I have: 1) Created the same restriction a stock airbox would have. 2) Created a very convoluted set of intake 'pipes' by forcing all the air through the ducts. So I am pretty confident I'll be going full circle and have a huge hot air intake pod and actually see a benefit. The air does *not* stay hot once it gets flowing, aided by the ducts, and the pod can then pull air from anywhere. All the posts of yore talk about the stock airbox costing 10-15kw at 300kw+ but you know what? I f**king would very much like that 10-15kw and I remember my own pod filter in engine bay experiences. Turns out the GTT Reo and Headlight brackets really don't allow you to mount GTR items, no matter what the internet says. Various brackets have had to be made up to actually make it fit right for the front bar. Also some idiot mounted a 3L Accusump right where the bumper wants to go, so that has had to be 'relocated' To where, I am still not sure, but it's supposedly mounted in the pictures and I can't see it.
×
×
  • Create New...