There maybe hope for us TSX's
Thread Starter
Pfft!
Joined: Aug 2007
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From: Atlanta,Ga
Originally Posted by rmpage
How much boost is the new pulley making?
Burning Brakes
Joined: Jun 2006
Posts: 1,128
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From: In a NSX down by the river...
Originally Posted by Big Ben
Update:
After several days of tuning and trying to figure this out we finally made some ground. Today we hit 270 whp / 208 tq. We are still hitting Vtec at 5k which wasn't making sense. We were starting to think that the Boomslang wiring harness was pinned wrong. Highrev called boomslang today to find out that the AEM unit won't control Vtec for us. Why? We haven't figured it out yet. So this took us to plan B which was just running a piggyback off a piggyback. We are going to run the reflashed ECU - ACM box - AEM unit. We found out that the comptech ACM controls Vtec as well. The sc reflash, reflashes your ecu to hit vtec at 5k and the acm does the rest. With some help from comptech i believe that we are going to unpin all the wires that don't have any thing to do with vtec. With that being said and in a perfect world the vtec will hit at 3k and we will have completed the project. Nothing has been this easy thus far so I am expecting the worse. To be continued.....
After several days of tuning and trying to figure this out we finally made some ground. Today we hit 270 whp / 208 tq. We are still hitting Vtec at 5k which wasn't making sense. We were starting to think that the Boomslang wiring harness was pinned wrong. Highrev called boomslang today to find out that the AEM unit won't control Vtec for us. Why? We haven't figured it out yet. So this took us to plan B which was just running a piggyback off a piggyback. We are going to run the reflashed ECU - ACM box - AEM unit. We found out that the comptech ACM controls Vtec as well. The sc reflash, reflashes your ecu to hit vtec at 5k and the acm does the rest. With some help from comptech i believe that we are going to unpin all the wires that don't have any thing to do with vtec. With that being said and in a perfect world the vtec will hit at 3k and we will have completed the project. Nothing has been this easy thus far so I am expecting the worse. To be continued.....
at your tq number (first street legal TSX to hit over 200wtq). What RPM do you hit max torque? I'm assuming that you'd be hitting it when VTEC kicks in at 5k, but how does the curve look?
At 8-9psi, I'm guessing the Roots is running pretty hot at this point. I'm wondering what would happen if you were to add a water/methanol injection kit to lower the IAT. The only problem with those is that if you dyno tune for them and accidentally let the resevoir run dry, you'll run lean and BOOM goes your engine...
If everything works out (crossing my fingers), I might have to join the super-supercharged club
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Boost Junky
Joined: Oct 2006
Posts: 446
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From: Smithtown Scion LI, NY
nice job bro...lookin good I would hafta agree with dayta and say go get yourself a nice water/meth kit. Id have your tuner make you 2 maps with the water/meth. Obviously do this when you get your vtec crossover fixed and the car is running 100% like it should. Have one map as just a normal chemical intercooled DD map and then have the second one leaned out a lot since you cant add timing to pick up a few more ft lbs/tq and whp. This way even if you end up running the res. dry on the first map its not so aggressive where your gonna cause damage to the motor 
I would hafta agree with dayta and say go get yourself a nice water/meth kit. Id have your tuner make you 2 maps with the water/meth. Obviously do this when you get your vtec crossover fixed and the car is running 100% like it should. Have one map as just a normal chemical intercooled DD map and then have the second one leaned out a lot since you cant add timing to pick up a few more ft lbs/tq and whp. This way even if you end up running the res. dry on the first map its not so aggressive where your gonna cause damage to the motor
Drives With Hands
Joined: Oct 2004
Posts: 1,793
Likes: 1
From: Raleigh, NC
Originally Posted by Big Ben
At this point I believe it it hitting around 8-9 psi with it hitting vtec at 5k. We ended up putting the 3.0 pulley on. Really not making much sense as I would have thought there would be more boost than that. I am thinking once we change the vtec point back to 3k the boost will be more. IMO.
Thread Starter
Pfft!
Joined: Aug 2007
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From: Atlanta,Ga
That looks like it is my final number. 270 whp and 208 tq. We fixed the vtec and it hits at 3k. At this point we are just trying to fine tune it. The fuel trims are still causing a problem because we have guessed at them. On normal driving it will it will sputter alittle. We are trying to get our hands on a scanner to be able to get a datalog and correct this problem. Will keep everyone updated. I will do a full write up when everything is completed. I will post a dyno as soon as i get a chance.
Boost Junky
Joined: Oct 2006
Posts: 446
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From: Smithtown Scion LI, NY
Originally Posted by Big Ben
That looks like it is my final number. 270 whp and 208 tq. We fixed the vtec and it hits at 3k. At this point we are just trying to fine tune it. The fuel trims are still causing a problem because we have guessed at them. On normal driving it will it will sputter alittle. We are trying to get our hands on a scanner to be able to get a datalog and correct this problem. Will keep everyone updated. I will do a full write up when everything is completed. I will post a dyno as soon as i get a chance.
B A N N E D
Joined: Jun 2007
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From: in Madison, WI from Chicago, IL
wow.. nice job. 208 tq SOUNDS kinda weak but I guess its what happens with a small honda I4... bet it feels real nice when you punch it though.
edit: sounds weak in comparison to the 270whp you got... most boosted engines that ive seen have a pretty equal hp/tq rating.
edit: sounds weak in comparison to the 270whp you got... most boosted engines that ive seen have a pretty equal hp/tq rating.
Unauthorized User
Joined: Jan 2006
Posts: 590
Likes: 1
From: Florida
Originally Posted by TSX Wisc Badger
wow.. nice job. 208 tq SOUNDS kinda weak but I guess its what happens with a small honda I4... bet it feels real nice when you punch it though.
edit: sounds weak in comparison to the 270whp you got... most boosted engines that ive seen have a pretty equal hp/tq rating.
edit: sounds weak in comparison to the 270whp you got... most boosted engines that ive seen have a pretty equal hp/tq rating.
Thread Starter
Pfft!
Joined: Aug 2007
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From: Atlanta,Ga
Originally Posted by simplyscion
so the car is pretty rock solid during open loop or WOT, but ur issues are now lying under closed loop? Once you get your long term and short term fuel trims your tuner should be able to overcome this pretty easily based on if im not mistaken by altering the primary o2 sensor voltage map
Thread Starter
Pfft!
Joined: Aug 2007
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From: Atlanta,Ga
Originally Posted by rza49311
Are you breakin' the wheels loose? 
Torque seems inline with civics and rsx's numbers i've seen
Torque seems inline with civics and rsx's numbers i've seen
I haven't gotten to drive it yet. I have been busy at work and it has been at the shop for a week and a half. I am not sure if you saw the video of me running with the turbo accord or not but they ran today and the tsx supposely walked him.
Thread Starter
Pfft!
Joined: Aug 2007
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From: Atlanta,Ga
Its still not acting right. Everythign is great under boost and above boost. The switch over is messing up. I have been driving it the past few days and its not something I think anyone would want to drive with. right when it hits 0 vaccum its freaks out for like 1sec and then his boots at 5psi. The feeling is like running out of gas. Not sure really what to do at this point. I have thought about putting the 3.2 pully back on and trying to just run the ACM with stock injects. The 3.2 only add 2-3 psi. I am really frustrated at this point. Once you hit boost though now it is such an amazing feeling. A feeling that I dont' want to get rid of lol. I'll keep everyone updated. I'll give you everything if you want but at this point I wouldn't think about doing it because of this problem.
Ben
Someone has meantioned a map controller. Any other thoughts?
Ben
Someone has meantioned a map controller. Any other thoughts?
Thread Starter
Pfft!
Joined: Aug 2007
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From: Atlanta,Ga
Originally Posted by Jay S.
I did some reading, Are you clamping the map signal so the ecu sees no boost?
7th Gear
Joined: Nov 2004
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From: Dartmouth Ma
From what is says on the aem website with the new software update it should control everything. The problem you are having may be coming from running the two controllers. what software are you running of the aem?
Thread Starter
Pfft!
Joined: Aug 2007
Posts: 170
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From: Atlanta,Ga
Originally Posted by Jay S.
From what is says on the aem website with the new software update it should control everything. The problem you are having may be coming from running the two controllers. what software are you running of the aem?
7th Gear
Joined: Nov 2004
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From: Dartmouth Ma
this isthe link to the aem forum http://forum.aempower.com/forum/inde...19c&board=89.0
Instructor
Joined: Dec 2005
Posts: 232
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From: Raleigh, NC
woowww! sounds awesome! i guess your wheels couldn't stay on the ground at the beginning eh? i think your speedometer climbs faster than my rpm...even when im on first gear haha. congratulations
Rep'n Taxbrain.com
Joined: Aug 2004
Posts: 7,075
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From: N. Cali-forn-i-a
Great job Ben!
I've been following this closely. Props on being persistent and not giving up! Sounds like you almost have all of the kinks worked out.
You look to be running lean at about 6700 RPMs and up. You should keep monitoring that, possibly add some fuel up top. Check the duty of your injectors and make sure you're not hitting max duty around that point.
I've been following this closely. Props on being persistent and not giving up! Sounds like you almost have all of the kinks worked out.
You look to be running lean at about 6700 RPMs and up. You should keep monitoring that, possibly add some fuel up top. Check the duty of your injectors and make sure you're not hitting max duty around that point.
Advanced
Joined: Jul 2007
Posts: 99
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From: Nashville, TN
The black line at 12.5 on the AFR graph...is this your target value? If it is, then I assume you're running closed loop (set a target AFR and let the controller read wideband AFR values and feed fuel to meet that desired AFR)? Or, are you running open loop (controller only feeds fuel according to what your cells are set at, and completely disregards the O2 sensor)?
Drives With Hands
Joined: Oct 2004
Posts: 1,793
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From: Raleigh, NC
Originally Posted by Tsx536
You look to be running lean at about 6700 RPMs and up. You should keep monitoring that, possibly add some fuel up top. Check the duty of your injectors and make sure you're not hitting max duty around that point.
Although I would avoid getting above 80% duty cycle with aftermarket injectors as it is not recommended. Being open without enough closure time can cause the pintle valve to float partially open throughout, injecting more fuel than you would like. Honda OEM injectors, for whatever reason, do not seem to exhibit this problem (per Hondata).