Fit Engine Modifications, Motor Swaps, ECU TuningReference Library for Engine Modifications, Swaps and Tuning
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lean is not an issue since i have the ability to correct the a/f ratio...
I did as well with mine, but despite that it still felt very bogged down. I think the EGR system plays a more critical part than most people are aware of.
Anyway, just my thoughts on it. I have been running around for almost a year with 2 different versions of this manifold that block the EGR. Since I did the swap out of the header (T1R for WR) & new manifold I have noticed a pretty significant difference in the low end power and this despite the fact my car tune is way too rich right now.
Today I surprised myself, I downshifted to pass somebody and I got way more power than I was expecting. It is strange, from a steady acceleration from 0-60 it seems like the car is laboring pretty hard (still better than stock), but it responds almost unexpectedly to jolts of throttle and then sustained acceleration.
I still need to play around with a few more things, I have a WR SRI intake waiting to be installed (to replace the Fujita CAI) and some new wheels to throw on in about 2 weeks. I also need to spend some quality time with my E-manage, my LM-2 and a laptop. I still have plans to hit the dyno again and see if all these adjustments make a big difference.
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Last edited by Sugarphreak; 03-18-2009 at 02:13 AM.
I did as well with mine, but despite that it still felt very bogged down. I think the EGR system plays a more critical part than most people are aware of.
Anyway, just my thoughts on it. I have been running around for almost a year with 2 different versions of this manifold that block the EGR. Since I did the swap out of the header (T1R for WR) & new manifold I have noticed a pretty significant difference in the low end power and this despite the fact my car tune is way too rich right now.
Today I surprised myself, I downshifted to pass somebody and I got way more power than I was expecting. It is strange, from a steady acceleration from 0-60 it seems like the car is laboring pretty hard (still better than stock), but it responds almost unexpectedly to jolts of throttle and then sustained acceleration.
I still need to play around with a few more things, I have a WR SRI intake waiting to be installed (to replace the Fujita CAI) and some new wheels to throw on in about 2 weeks. I also need to spend some quality time with my E-manage, my LM-2 and a laptop. I still have plans to hit the dyno again and see if all these adjustments make a big difference.
exhaust gas recirculation is a bad thing for power output...its for emission control and is part of why the fit has the LEV rating...
im using a custom fuel management system and also using the innovate lm wideband
getting the car to run properly without pumping exhaust back into the cylinder will always make more power.
exhaust gas recirculation is a bad thing for power output...its for emission control and is part of why the fit has the LEV rating...
im using a custom fuel management system and also using the innovate lm wideband
getting the car to run properly without pumping exhaust back into the cylinder will always make more power.
yes but pumping exhaust back into the cylinder is also done to cool the cylinder controlling NOX levels. with out an egr system on a modern fuel injected motor the cylinders would over heat causing oil to burn off the walls and lead to scratching of cylinder walls.
yes but pumping exhaust back into the cylinder is also done to cool the cylinder controlling NOX levels. with out an egr system on a modern fuel injected motor the cylinders would over heat causing oil to burn off the walls and lead to scratching of cylinder walls.
The cylinders would overheat is way off base...fuel cools the cylinders which is why high horsepower boosted cars run rich...pumping hot exhaust back into the cylinder would not cool it. But by pumping exhaust back into the cylinder your reducing the room for fuel and oxygen which reduces power and heat (you can cause the exact same thing by letting up on gas pedal ). Honda has a lot of different fuel injected engine models without egr on them.
exhaust gas recirculation is a bad thing for power output...its for emission control and is part of why the fit has the LEV rating...
im using a custom fuel management system and also using the innovate lm wideband
getting the car to run properly without pumping exhaust back into the cylinder will always make more power.
Logically you will get no arguement from me, on paper this looks good
I just wasn't getting the results I wanted with it blocked, I was using the E-manage Ultimate tuned by AJRacing. Now that I am running with it flowing I can tell the differance, like I was saying before I suspect there is more going on here than just an efficency process.
Anyway, not looking to debate it. I am just sharing my experience
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Car is tuned, wheels are finally here (tires arived Monday); Dyno is tenatively scheduled for May 17th
no before and after dyno runs makes it pointless...and how did you tune it without a dyno? You can get the a/f ratio close street tuning but you cant do timing on the street.
no before and after dyno runs makes it pointless...and how did you tune it without a dyno? You can get the a/f ratio close street tuning but you cant do timing on the street.
Street tuned doing 2nd gear pulls and then adjustments from the logworks graph to the E-manage map to hit my target A/Fr's. Naturally the dyno will also be used to make final adjustments based on the power output.
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Not having EGR is going to throw off your timing. EGR requires a lot of extra timing. Just turning it off will cause you to detonate. The reason it felt bogged is probably because you were bouncing off the knock retard.
EGR doesn't do anything at WOT anyway, so there's really no benefit from turning it off. It improves mileage too, as well as emissions.
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). Honda has a lot of different fuel injected engine models without egr on them.
Linear Mode
