how much for a rb20det dyno tune?

[warpz0r]

hi all

just wanting to know a rough figure on how much a dyno tune would cost for a rb20det with a fmic and 2.5" exhaust as the only mods...

its got a very rich idle and leans out fairly quickly up the top...

just did a conversion, so a tune is in need...

also, any places around Hurstville that can be recommended for it?

thanks

[bangahh]

http://www.uniqueautosports.com.au/dyno.htm

"...STANDARD POWER RUN - $80.00

OPTIONAL EXTRA'S

3 runs are performed, this includes logging and graphing of the following parameters through the rev range, which is also stored on our computer.

Manifold pressure (Boost)

Power graph in Kw or HP

Air Fuel Ratio

Torque

...."

[warpz0r]

yeah, but does that include tuning? or just running the car on a dyno?

[bangahh]

yeah, but does that include tuning? or just running the car on a dyno?

check the website out, follow the link im pretty sure your q will be answered.

[warpz0r]

DYNO TUNING - $140/HOUR

Dyno time for diagnosis, tuning or tidy up tune of aftermarket computers and controllers if engine is modified, for example tuning Super AFC etc.

this is an answer, but not the answer to my question...

i dont have any aftermarket computers... only the stock one

[gtrken]

All that can be done is optimise the base timing .

Any air fuel change or timing map change would require a rechip or burn of your existing computer.

Don't know about the East but we charge around $650-$800 fitted and dyno tuned for the R32GTS-T.

cheers

ken

[GTS-t VSPEC]

warpz0r, As Ken says, you currently have nothing to tune, other than adjusting the CAS for base timing. Best to do a power-run to determine whether your current setup is running safely, after that then choose either an SAFC, remap or full computer.

[wilch]

I highly recommend unique autosports too.

I recently had my car up on their dyno (had just installed a front mount intercooler). It didn't make as much power as it should've so they tried to diagnose and fix the problem. They did

check out the thread:

http://www.skylinesaustralia.com/forums/sh...ead.php?t=51971

[warpz0r]

i guess i might have to buy a s-afc from jaycar... they fit in my budget.. haha

because idle is a little rough but very rich, and it leans out fairly early when driving...

maybe exhaust sensor?

[Sydneykid]

i guess i might have to buy a s-afc from jaycar... they fit in my budget.. haha

because idle is a little rough but very rich, and it leans out fairly early when driving...

maybe exhaust sensor?

The standard lambda sensor does nothing at large throttle openings, under acceleration. Constant speed cruise and idle are the closed loop parameters. Almost all RB20/25/26's run rich when you run more boost, fit a FMIC, upgrade the exaust etc. If it is truly leaning out, then I suspect fuel supply problems( pump, filter, fuel pressure regulator). A fuel pressure check on the dyno will identify this.

My recommendation, have the base igntion timing checked and get a power run done on the dyno and look closely at the A/F ratios and the fuel pressure. That will tell you what the potential problems are. Go to a club dyno day and it will cost $50 or so, the best money you will spend.

Hope that helps

[warpz0r]

fixed the problem!!! YAY!!!!!!!!!!!!

fuel filter was the culprit!

went down to supercheap, got a fuel filter, put it on, let the car warm up and pressurize, gave her a few bursts of the throttle and didnt hear any stutters or anything...

took her down the street and wow... ive never driven a turbo car before, but with a 2.5" exhaust and fmic, its so noisy...

thanks everyone for your help