Thought it may be interesting to view a few different dyno charts of cosworth motors of forum members. I have the dyno sheets of each motor. Please send me your charts if you want to be added. Rules HP = KW x 1.34. Transmission loss 24%.

Lincoln - T4, 2wd ex manifold, 7.5:1, ported head with cams (advanced timing), RS500 plenum.
Graeme - T3/T4 hybrid, 2wd ex manifold, 7.5:1, ported head with standard cams and timing, Jakes plenum.
Mark - GT30, 4wd manifold, standard 2wd motor.
Phil - GT2871R, 2wd ex manifold, 7.0:1, std 2wd head, std 2wd plenum with spacer.

Just a disclaimer that there are many variables to consider.

1. Different Dyno
2. Different ramp rate
3. RPM may not be accurate / it is logged by an operator that enters the RPM reading off your tacho or lap top plugged into the ECU. We have found sometimes the numbers differ...and this changes the torque figures...
4. Data entry / interpretation of the graph...
Interesting none the less...

Coolio Mark. Thought it was nicer this way than the power leaderboard. Do you have any other owners charts?

This is not a willy waving contest as it can been seen mine is smallest ;)

quote:

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Originally posted by LINCOLN

Coolio Mark. Thought it was nicer this way than the power leaderboard. Do you have any other owners charts?

This is not a willy waving contest as it can been seen mine is smallest ;)

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...Got it - I know it is just an interest piece...I have more power earlier, but no new sheet, I am back at the Dyno soon after a tweak with the ECU and Rev limiter settings, nothing that will make much power difference though up to 381hp atw last weekend with the power still climbing....What will be interesting is if we get to making a special inlet and plenum...

forget the ramp angles etc.im very impressed with the max power figures from all concerned.considering road exhaust and pump fuel these are nearly as good as a group a engine as used by the touring car boys if tuned for road use,ie full system and 98 octane. to think a standard 2wd exhaust and inlet manifold can produce upwards of 600hp,these were fitted to std engines,unreal.

Pretty good engines!
Disclaimers: Typical Engineers[;^)][88][:I]

Anyone have any more dyno sheet for aussie cars?

I will check some of my old records to see if i have my old print outs for escort, black sierra or group a sierra.if not will ask paul if on his dyno still. Mark you should look at fitting a 2wd exhaust manifold as in my experience it is a limiting factor in producing big power.

This one is GT3076R and 7.0:1 comp pistons, otherwise stock engine but seriously worn out

This one is GT2871R with 7.0:1 comp pistons and not quite as worn out[;^)]