Intake manifold testing.
Sad thing is the Hypertune Manifold is even more expensive then the HKS unit. But with the Hypertune you get a 77mm Throttle Body, Throttle Line Wheel, and a New Hi-Flow Fuel Rail. If you add all that up it's about the same as buying all those items separately in the end. Can't wait to see your results Dave! Thanks for everything.
The test might be tomorrow, it is going to be a lot of work to get the next one on. That is why it is last on the list. I would like to get it done tomorrow as my EVO X should be here Wedneday and I am going to be buried in that project.
Something else I missed. The weather conditions today, yes it is cold as hell here today.
I have been keeping the AIT's as close as possible to each other as I can. Which is very close. I think most of the testing has bee with starting AIT's of 59 degrees and I have been using the fan on the dyno too. Today because it was so freaking cold I knew it could mess with results so I kept the dyno room (seperate building that is 28x24) closed. It is heated so I swapped the intakes and then loaded the car very quickly on the dyno (car has to go outside and back in to go on the dyno) Then we closed the door behind the car to hold the heat in the building. The very first pull with the Kansai the power was actually 661, I looked at the log, noticed it was in the 12:1 AFR's and that the AIT's were only 45. I got out of the car, turned the dyno fan off. I then finished tuning the car with the dyno fan off, so the AIT's were going up each time. The intake actually made this power with no fan and the highest AIT's of all the testing. The final run where I got the AFR's back into the mid 11's I had a starting AIT of high 60's that went up into the 70's. So if anything, I could have made more power had I turned the fan back on.
Something else I missed. The weather conditions today, yes it is cold as hell here today.
I have been keeping the AIT's as close as possible to each other as I can. Which is very close. I think most of the testing has bee with starting AIT's of 59 degrees and I have been using the fan on the dyno too. Today because it was so freaking cold I knew it could mess with results so I kept the dyno room (seperate building that is 28x24) closed. It is heated so I swapped the intakes and then loaded the car very quickly on the dyno (car has to go outside and back in to go on the dyno) Then we closed the door behind the car to hold the heat in the building. The very first pull with the Kansai the power was actually 661, I looked at the log, noticed it was in the 12:1 AFR's and that the AIT's were only 45. I got out of the car, turned the dyno fan off. I then finished tuning the car with the dyno fan off, so the AIT's were going up each time. The intake actually made this power with no fan and the highest AIT's of all the testing. The final run where I got the AFR's back into the mid 11's I had a starting AIT of high 60's that went up into the 70's. So if anything, I could have made more power had I turned the fan back on.
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Joined: Oct 2004
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From: Markopoulo, Greece
Come on now guys....!!!All of us have made some bad choices on our cars and have wasted some money on crapy things that don't work!!Now that a produt guarantees us such a big gain you say that it is expensive!Its not fair.What do you prefer in the end,an expensive product that work or to risk your money?For me the HKS Kansai manifold was the best $1700 I have spent and is a top quality product!
One thing I'd like to point out that Dave and I have already discussed.
The boost at peak power is not the same between manifolds. The can be for various reasons but one of them being fluctuation in the pressure ports on the manifold that can affect boost level. Ideally each manifold would be run at the exact same boost level and boost pressures would be verified pre-intake manifold (turbo outlet). I know Dave has put a lot of time into this but I do feel it important to mention that.
Dave, can you post a boost-vs RPM curve and lay over all the manifolds? Also I forgot what you said but you're using boost control, MAP sensor, and map for dyno off the plenum correct?
The boost at peak power is not the same between manifolds. The can be for various reasons but one of them being fluctuation in the pressure ports on the manifold that can affect boost level. Ideally each manifold would be run at the exact same boost level and boost pressures would be verified pre-intake manifold (turbo outlet). I know Dave has put a lot of time into this but I do feel it important to mention that.
Dave, can you post a boost-vs RPM curve and lay over all the manifolds? Also I forgot what you said but you're using boost control, MAP sensor, and map for dyno off the plenum correct?
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Joined: Oct 2002
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