Vic N/a Dyno Day

[Guest RedLineGTR]

good that it turned out nice...i would of stopped by just to say hi and meet some people(no point of putting a turbo car on a n/a dyno day) but i slept in (had a big one last night). Cheers

[Cortide]

Hmm ok

Ill post a scan of my dyno sheet. Ill scan the power one as well.

My Dyno sheet

ahh the wonders of 74rwkw

[doxximus]

sorry guys i came early this morning at around 8:30 but didnt introduce myself as i was on delivery and had to go to croydon

just went past to get soemthing from sam and had the pleasure of seeing the 1600

[Greg]

hehe go the 1600

What I found most interesting was the power curve of my car compared to say cortide's car, which is dead stock. This fairly linear curve is no doubt due to the extractors - _turtle_'s car with the same extractors as mine (Coby) showed a similar curve. To actually see proof that spending money on my car gives real results is pretty satisfying - it's not all just for noise making purposes

All dyno results were taken in 4th gear (except for one of funkys runs).

[Cortide]

What I found most interesting was the power curve of my car compared to say cortide's car, which is dead stock. This fairly linear curve is no doubt due to the extractors - _turtle_'s car with the same extractors as mine (Coby) showed a similar curve. To actually see proof that spending money on my car gives real results is pretty satisfying - it's not all just for noise making purposes

Looking at my dyno sheet attached, is my car running too lean or too rich??? Yes i know i asked this about 3 times today already but i forgot!

Yours was too rich i think. i cant remember i think richer was lower.

It was good to see the comparisons.

Power graph

I hope you guys dont mind, this is the graph of the 5 cars for power. So you can see what greg means.

Mine (Blue) - Stock

Gregs and _turtle_ (red colors) - not so stock

[_turtle_]

Hey Greg, what was the optimal figure for the air/fuel ratios?

I think that baffled hotdog i put in recently is restricting my top end a bit. Oh wells, keeps the noise levels down

[Greg]

from memory Dr_drift said that he tunes turbo cars to 0.8 but n/a's can run a little leaner, I think 0.9 was acceptable??

[Dr_Drift]

from memory Dr_drift said that he tunes turbo cars to 0.8 but n/a's can run a little leaner, I think 0.9 was acceptable??

I don't like tuning turbo's leaner than 0.82 on full boost, but NA cars are under less stress and can run well a little leaner.... I would think 0.9 would be a bit lean for good power, but basically tune the N/A's wherever they make best power between 0.82 and 0.88

Doc.

[_turtle_]

Hey doc, would advancing the timing a few degrees make any difference?

Ever since I had my timing belt replaced the car has not been the same, wonder if that could effect anything.

[Dr_Drift]

Hey doc, would advancing the timing a few degrees make any difference?  

Ever since I had my timing belt replaced the car has not been the same, wonder if that could effect anything.

depends where it's at now??

[skyla]

Just as a matter of interest how many of the cars that were dynoed were auto and how many are manual?

[doxximus]

the 1600 was manual i think

[Greg]

Just as a matter of interest how many of the cars that were dynoed were auto and how many are manual?

i think only one was auto - aphixx's car

[_turtle_]

depends where it's at now??

Not sure where the timings at now as i dunno how to rig up the timing gun to it as theres not spark plug leads, i remember someone else told me some other method but dunno.

Anyways its a good indication of how our cars are running, and for those totally stock cars they can compare again next time they have put an exhaust or something on.