Dyno Or Road Tune

[black sky]

Hi People

I'm about to tune my car and i just want peoples opinions and reasons. as stated above which do you think gives a better tune dyno or road tune what are the advantages of each other than having a print out saying how much power you have and which will five me the more complete tune with the most power.

Cheers

anthony

Edited October 10, 2006 by black sky

[R31Nismoid]

Dyno

You cant hope to safely achieve the speeds/loads etc thats required on the street.

[konect]

Dyno

You cant hope to safely achieve the speeds/loads etc thats required on the street.

and temperature as chances are you will be doing it at night

ie hot track day comes along and tune goes bye bye

Edited October 10, 2006 by konect

[Cubes]

Dyno and then ensure there's no ping under street conditions.

[paulr33]

spot on, as cubes said

if you do a dyno tune then fang it on the street

its gonna detonate in some places on the map that it wasnt hitting on the dyno. so ideally both.

[Adriano]

I dyno tune, then take it for a run o the street to setup the accel pump settings and light throttle/ cruise settings, as you cant access these very light throttle points on the dyno. As for the tune changing at night, any good tune should not change day or night, as the computer has builtin air temp/density compensation.

[The Mafia]

I pick the hottest shittiest days and road tune mine. Just out of the way of the blue boys though.

[Tangles]

I pick the hottest shittiest days and road tune mine. Just out of the way of the blue boys though.

hahaha!!

lol, both tunes Ive had done were in middle of an Adelaide summer, on a Dyno run by a Professional Tuner. 3rd tune will be exactly the same.

[Sydneykid]

The more cars I tune myself, the more I become convinced that road tuning is essential. It is simply impossible to duplicate all of the conditions that you get on the road on the dyno. Plus (even if you could) it would cost a fortune to do a full tune on the dyno as it would involve hours and hours.

Let me give you a racing example. The V8 Supercar team I was with at Bathurst last week tune each and every one of their engines individually on an engine dyno over several days each. What they end up with is a PERFECT tune, for the dyno room in those conditions. When the car arrived at Bathurst the very FIRST thing the engine tuner did was check the lambda readings on the telemetry over the first 5 or so installation laps at the circuit. Then he made some adjustments to correct for altitude and atmospheric conditions. The drivers reported no noticeable increase in power (the telemetry showed no increase in acceleration as well) but they noticed improved driveability (eg; throttle response). He also spent a little time trimming the fuel economy to try and save time in the pits, refuelling.

Exactly the same logic applies to a road car tuned for driveablity and economy. Tuning for power on the dyno is the best method, but that is only one of the things that REAL tuning means.

So I will continue to do what I do now, tune the cars on the road (or the track) for power, response, driveability and economy. Then stick it on the dyno and fine tune the power.

cheers

[The Mafia]

too true sk.

Driver: "hey man, the cops are chasing us"

Me: Good, now you have an excuse to hold in flat in 4th for me so I can finish trimming the fuelling up top..."

Edited October 11, 2006 by The Mafia

[Beer Baron]

i do both. each one method has it's pro's and con's. for a complete tune you need both.

[The Mafia]

i do both. each one method has it's pro's and con's. for a complete tune you need both.

you mean for a print out you need both