How Much Power Will a RR-Racing ECU Tune Make
10-16-20, 07:41 AM
#1
Racer
Thread Starter
How Much Power Will a RR-Racing ECU Tune Make
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FN_Darknes (10-19-20)
10-16-20, 01:55 PM
#3
Driver School Candidate
If timing is calculated as written down in the picture, how is it possible to advance timing with a tuning file and gain power?
In my opinion it is not possible, because the strategy of the ecu works always close to the edge of knocking. My ISF has an kclv between 24.6-25.1 and my klv stays about -3.0 degree, so there is no knocking detected. I can reach 25.1 only, if I drive the car very hard, as suggested to do after a remap. So even with stock file it is possible to pull up the kclv and gain some power.
If timing is raised in a tuning software, the kclv should go down till the point, where knocking is detected. So I think I drive with lower kclv than with stock software, but the same maximum possible ignition angle.
And as the result there should be the same ignition angle with the stock file or tuning file in theory and so no gain in power, because the ecu does it's own calculation.
I also read a topic in this forum, where a customer have had a roughly 3 degree lower kclv with remap than with stock software. Perhaps this is what I am talking about?
Maybe someone can explain, if I am wrong, because I am very interested in remapping my car.
10-16-20, 05:40 PM
#4
Tech Info Resource
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Except advancing timing isn't necessarily the thing the engine needs. Ignition advance is present so peak cylinder pressure is achieved at 6 degrees ATDC. What that actual number is doesn't mean much, and the smaller that number is, the more efficient your combustion chamber. When I raised the compression on my street bike engine from measured 9.2:1 (factory claimed 9.5:1), to measured 11.25:1, I had to retard full advance 7 degrees. I learned it was 7 degrees because when I set it to 5 degrees looking for more power, I crushed the ring lands on my #2 piston and had to rebuild the engine. And this was with full control of fuel via carburetor jets.
So, assuming this will be a good thing doesn't take into account the specifics of your engine. Keep in mind the factory works to tolerance. Stacked tolerance can be your friend and it can be your enemy. Some guys get factory engines that knock incessantly. Other guys get engines that never knock, but also never win stock for stock races.
There's a lot more to this than meets the eye...
So, assuming this will be a good thing doesn't take into account the specifics of your engine. Keep in mind the factory works to tolerance. Stacked tolerance can be your friend and it can be your enemy. Some guys get factory engines that knock incessantly. Other guys get engines that never knock, but also never win stock for stock races.
There's a lot more to this than meets the eye...
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10-17-20, 07:40 AM
#5
So, assuming this will be a good thing doesn't take into account the specifics of your engine. Keep in mind the factory works to tolerance. Stacked tolerance can be your friend and it can be your enemy. Some guys get factory engines that knock incessantly. Other guys get engines that never knock, but also never win stock for stock races.
A few nitpicks. The "false start" he experienced is completely normal and I hope like hell they got that oil temp up to operation before they just stood on the pedal on that dyno - that's a beautiful car on there and I wince when I see people ignoring their oil temps which isn't uncommon on the videos I've seen on this forum.
10-17-20, 05:17 PM
#6
Moderator
My car has ran the most timing on stock tune with e30. Below 3k RPM table is 25.3 and above 3k is 24.8 KCLV consistently. My KFV is consistently at -3.0. I don’t know if the tunes mess with the timing, but they do mess with fuel mixture, which can create knock and reduce timing if not done correctly.
10-18-20, 01:55 PM
#7
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Definitely more than meets the eye...
...
A few nitpicks. The "false start" he experienced is completely normal and I hope like hell they got that oil temp up to operation before they just stood on the pedal on that dyno - that's a beautiful car on there and I wince when I see people ignoring their oil temps which isn't uncommon on the videos I've seen on this forum.
A few nitpicks. The "false start" he experienced is completely normal and I hope like hell they got that oil temp up to operation before they just stood on the pedal on that dyno - that's a beautiful car on there and I wince when I see people ignoring their oil temps which isn't uncommon on the videos I've seen on this forum.
If the flash only took a few mins how did the oil temp bar drop to one bar..
Anywas I'm happy with my Factory NA Tune..
Joe Z
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10-19-20, 07:48 AM
#8
I could not be happier with my setup (and that says a bit).
RRR Tuned intake, elbow, hollowed primary cats and tune.
Yes there is a learning procedure that should be done to get the ECM optimized. RRR provides the info. Very easy. 6 pulls in 4th gear from 3,000 to 6,800 rpm. Once I completed that, the car had another level of "aggressive."
Still quite and comfortable with normal driving but just goes nuts when I stab it. The 7200 RPM redline is fantastic and the tune + hollowed cats sound incredible.
RRR Tuned intake, elbow, hollowed primary cats and tune.
Yes there is a learning procedure that should be done to get the ECM optimized. RRR provides the info. Very easy. 6 pulls in 4th gear from 3,000 to 6,800 rpm. Once I completed that, the car had another level of "aggressive."
Still quite and comfortable with normal driving but just goes nuts when I stab it. The 7200 RPM redline is fantastic and the tune + hollowed cats sound incredible.
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RRRacing (10-20-20)
10-20-20, 08:44 AM
#9
Pole Position
Agreed! Never had any issues with my tune & tuned intake set-up
night and day difference from stock
night and day difference from stock
10-20-20, 05:49 PM
#11
Primary cat delete with tune and intake is a significant boost in power. My butt-dyno says 40hp easy (10%). If I had to put money on it I'd say right around 50-60hp 4,000-,7,000 RPM. I am also betting I will pass smog since I can reinstall the factory intake and everything looks 100% OEM.
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Rickna (01-30-21)
01-30-21, 02:48 PM
#13
Pole Position
Yea I think he had the car maybe 7 months if that?🤷♂️.....Yea buying the cheapest GT4 in the country with a salvage title was an interesting buy, but maybe it worked out for views on his channel. All I know and he probably would agree is that the ISF was way more reliable
01-30-21, 04:51 PM
#14
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Yea I think he had the car maybe 7 months if that?🤷♂️.....Yea buying the cheapest GT4 in the country with a salvage title was an interesting buy, but maybe it worked out for views on his channel. All I know and he probably would agree is that the ISF was way more reliable
Joe Z
01-30-21, 05:45 PM
#15
Moderator
Those GT4s sure are quick around a track though.