LINCOLN
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Cosworth Dyno Charts Comparison.
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.  
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Mark
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RE: Cosworth Dyno Charts Comparison.
2011/04/12 12:32:36
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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...
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LINCOLN
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RE: Cosworth Dyno Charts Comparison.
2011/04/12 12:42:09
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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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Mark
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RE: Cosworth Dyno Charts Comparison.
2011/04/12 13:23:52
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quote:
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 ;)
...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...
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blackmk1cossie
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RE: Cosworth Dyno Charts Comparison.
2011/04/13 20:30:24
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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.
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Mark
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RE: Cosworth Dyno Charts Comparison.
2011/04/13 22:17:55
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Pretty good engines!
Disclaimers: Typical Engineers[;^)][88][:I]
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LINCOLN
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RE: Cosworth Dyno Charts Comparison.
2011/04/13 22:19:44
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Anyone have any more dyno sheet for aussie cars?
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blackmk1cossie
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RE: Cosworth Dyno Charts Comparison.
2011/04/14 18:37:01
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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.
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Phil
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RE: Cosworth Dyno Charts Comparison.
2011/04/14 19:04:15
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This one is GT3076R and 7.0:1 comp pistons, otherwise stock engine but seriously worn out  
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Phil
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RE: Cosworth Dyno Charts Comparison.
2011/04/14 19:05:42
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This one is GT2871R with 7.0:1 comp pistons and not quite as worn out[;^)] 
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Mark
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RE: Cosworth Dyno Charts Comparison.
2011/04/14 21:26:08
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quote:
Originally posted by blackmk1cossie
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.
4WD manifold is not the restriction thus far even with my 284kW atw...Phil, Yavuz and I have done comparisons, engine for engine, same dyno...More testing comparisons will come with Phil's new engine...Further my engine is the apparent "least awesome" version being the first YBB bog stock[8~2]..."They" say the later engines are better, this is likely as of course tweaks and improvements would be made over 8 years of production[;^)]...Happiness in the end is driving...That we all agree...
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rs turbo
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RE: Cosworth Dyno Charts Comparison.
2011/09/08 06:33:03
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here my dyno print out , running a gt30/76 ,pump fuel,bd16 inlet cam ,bd15 exhaust,ported head and 8.0 comp.. thats at 22 psi bleed back to 18 ish
Attached Image(s)
Scs motorsport 0431649697
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LINCOLN
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RE: Cosworth Dyno Charts Comparison.
2011/09/12 14:59:57
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Cool cannot read that bottom scale - got a better pic?
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Big_Gav
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RE: Cosworth Dyno Charts Comparison.
2011/10/26 22:39:42
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Feel free to add mine to the pile mate. This was about this time last year just after the ECU was wired in. It still needs to go back for fine tuning. I have been busy with "other" mods!  Spec is running a GT2863R, MoTec M400 with wasted spark ign, Sard 1000cc injectors, 12mm plet spacer. All stock internals with the usual other mods including big FMIC, pod filter and 3" exhaust. 
post edited by Big_Gav - 2011/10/26 22:42:58
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Texaco
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RE: Cosworth Dyno Charts Comparison.
2012/01/04 20:10:07
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If I knew how to download. A dyno sheet I would !!!
STD yb
Gt28/76r STD cams 14 pound of boost on e85 330 hp at the treads
Built by
Fourd performance
Australia's fastest street driven ford Capri ( pro 69 ) 8.10 @168 mph
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