Let's see your fully tuned timing maps
Aug 18, 2013, 04:30 PM
#2371
evo 9, 24.5 psi, stock cams stock turbo, stock o2 housing, ets fmic and piping, dp/catback.
anybody think im a little light on timing out the top? thinking i might be able to add a degree or two more as boost tapers off. this is a road race car so im not trying to be very aggressive but build a beneficial torque curve.
anybody think im a little light on timing out the top? thinking i might be able to add a degree or two more as boost tapers off. this is a road race car so im not trying to be very aggressive but build a beneficial torque curve.
Aug 25, 2013, 09:02 AM
#2373
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For road race I wouldn't be much more agressive. 10* on 93 for road race I don't think your too mild. I'd keep this combustion chamber cool, it's my opinion. I bet your already on rich side. It's pretty harsh on engine so better not be at the edge of knocking, everyone will tell you the same. Unless you need that tenth to beat your friend
Aug 25, 2013, 11:22 AM
#2375
That's a nice example of risking to throw rods in the long term on 91. 7* at peak torque has been proven to be a too harsh torque spike. Try 4* and raise it faster when engine has less torque. In other words, try to get a more flat torque curve.
Last edited by domyz; Aug 25, 2013 at 11:24 AM.
Aug 25, 2013, 12:38 PM
#2376
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I'll look at 2500-4k on 100+ load.
Car seems to like it just fine...no issues, pulls like a freight train. Any threads that can take me to this 7* is too much consensus? Not doubting you, just would like to see it for myself.
Aug 25, 2013, 12:56 PM
#2377
If you approach the 390-400 ft/lbs mark, consider smoothing this torque curve. Stock rods are well known to fail over 400 ft-lbs.
Last edited by domyz; Aug 25, 2013 at 12:59 PM.
Aug 25, 2013, 01:21 PM
#2379
It's a nice map. That 2.3 must pull hard!
What's that 6-7-5-7 from 4500RPM? Did you record a some knocking?
Also to add to the former discussion , here is an example of a built 2.3 that runs 6* at peak torque, there's nothing to worry about it.
What's that 6-7-5-7 from 4500RPM? Did you record a some knocking?
Also to add to the former discussion , here is an example of a built 2.3 that runs 6* at peak torque, there's nothing to worry about it.
Last edited by domyz; Aug 25, 2013 at 01:23 PM.
Aug 25, 2013, 01:45 PM
#2382
Evolving Member
Actually I was running up to 8* at peak torque, but it tended to knock sporadically, so I took out a degree or two from the map.
I 've been running stock block 2.0l + 272 kelfords + stock evo9 turbo @ 25psi peak tapering to 22 psi and 6-7* at peak torque for 3 years of daily driving + autoXing. I wasn't really worrying about my stock rods as considered my tune to be pretty reliable, as my engine never failed even at competition events.
I never worried until one day I went to dyno and saw some numbers. It made about 450lbs\ft of peak torque on pump gas RON98 (92-93octane probably) at 7* and 470lbs\ft using WMI system at 9-10* at peak torque.
What really wonders me is how he runs 7* at peak torque on 91 octane?
Aug 25, 2013, 01:48 PM
#2385
Evolving Member
could you make a screenshot of the log, or just describe what cells does it run?