DuffyMahoney Posted May 17, 2022 Author Share Posted May 17, 2022 Flow seems like it should work great. Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted May 18, 2022 Author Share Posted May 18, 2022 My friend swapped my clutch and fixed some bugs. But putting my center console back in, he pinched a wire on the o2 sensor. Shorted and burnt my dual o2 cam sensor up. Darn it. The old saying no good deed goes unpunished Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted May 19, 2022 Author Share Posted May 19, 2022 I am using a mid 80s bmw iac valve. I was having a hard time finding a hose that looked good and would hold the vac without collapsing. Then it dawned on me, maybe one meant for the same bmw. Fits awesome and is exactly the right size for my balance bar. Stoked Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted May 26, 2022 Author Share Posted May 26, 2022 I ended up getting new injectors. These are 35lb and they have a traditional 20 degree cone spray pattern. Prior I have a v pattern designed for DOHC motors. Squirting at two valves. Hopefully the work a little better. They are slightly longer. But I got them to work. Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted May 26, 2022 Author Share Posted May 26, 2022 Well Tons if fiddling and swear words. I now have 100% throttle engagement from the gas pedal. Turns out prior I only had like 70%. I normally work from the engine bay and I could always get 100% from there. Whoops FullSizeRender.MOV Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted July 20, 2022 Author Share Posted July 20, 2022 ITB with IAC take 3. My last bmw IAC wouldn’t play nice with my haltech (basically it’s the opposite of how haltech controls it). This one let’s by a tiny bit of air at full closed. I plan to see if I can set the butterfly’s and it to play nicely and not idle too high when the engine is warmed up. Fingers crossed. Quote Link to comment Share on other sites More sharing options...
madkaw Posted July 24, 2022 Share Posted July 24, 2022 What idle rpm do you shoot for ? I let mine idle pretty high - 1000rpm. I figure it keeps oil on the lobe and easier to find a happy spot for the engine to idle . I use stepper IAC myself , and it’s been a challenge . Getting the idle to come back to the same spot every time with a big cam was also part of the challenge . I also think my 3/8 I’d hose is too small for this engine . I need to put a 1/2” since that what a lot of OEMS use . Quote Link to comment Share on other sites More sharing options...
jonbill Posted July 25, 2022 Share Posted July 25, 2022 I just use ignition advance to control idle speed. 28° when cold going down to 6-8° when warm. Idles at ~1000 rpm from startup. Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted July 25, 2022 Author Share Posted July 25, 2022 I promised my wife rock solid starts/ modern starts when I went down this ITB rabbit hole. Once my car is warm, I don't need it. I do not like a car idling at 1000 rpms when warm though. I like around 850-900 rpms. I will use timing and IAC for idle control. The Haltech Elite 750 can't do a stepper motor. Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted August 9, 2022 Author Share Posted August 9, 2022 Finally getting somewhere with iac and cold starts. IMG_0256.MOV Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted August 11, 2022 Author Share Posted August 11, 2022 Well I am a liar. My wiring was wrong. Iac wasn’t even working. But it lets by 20% air or so with 0 volts. So this is cold start with 20% air going by. On my haltech You can set voltage at a percentage of 0-12v. So roughly set the lowest voltage it can go to 33%. Should work, but to be determined. I need to run a new DPO wire Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted September 15, 2022 Author Share Posted September 15, 2022 100% hands free cold start, warmed up and idling below 1k. ITB and IAC playing nicely. Quote Link to comment Share on other sites More sharing options...
rossman Posted September 15, 2022 Share Posted September 15, 2022 Nice! Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted September 22, 2022 Author Share Posted September 22, 2022 I finally got my car remote tuned. I had a few settings I didn’t understand, totally wrong, then my biggest issue is my iac. The haltech ecu doesn’t like my balance bar setup. I won’t give up. But I ended up plugging it for my road tuning. First impressions is wow. The car feels so fast. Even peels out a little, which seems crazy for a bone stock 2.4L. Wot passes sound magical. I ended up using Animal Tuning, who works for haltech and tunes on the side. I have dual o2 sensors, 1-3 and 4-6. 1-3 needed about 5% more fuel to obtain the same afr. Which was a pretty cool feature. Next is more wot passes and making sure AFR is on to protect the motor. Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted September 23, 2022 Author Share Posted September 23, 2022 Now that my ITB is running nicely. Should I try my SK / OER inner fits. Poor google translates to power torque of the concave fast limits improves. Power torque in the medium and low speed range is impoved. Sort of like a jet nozzle. They come in 30, 34 and 38mm. I have 8x 38mm and 4x 34mm Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted September 23, 2022 Author Share Posted September 23, 2022 Also added some bug screens Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted September 28, 2022 Author Share Posted September 28, 2022 Using hand throttle for cold starts. Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted January 27, 2023 Author Share Posted January 27, 2023 Something in from Australia! A progressive cam for the overhead bar and my ITB. It would also work with triples. Basically it increases pedal modulation, so this gives you more pedal movement with less throttle blade movement. Should help with street driving and my throttles trying to take huge gulps of air with a tiny amount of pedal travel. Weber kc332 Now machined out to 10mm. Just barely enough room. I had to have the allen bolt turned down. Quote Link to comment Share on other sites More sharing options...
DuffyMahoney Posted February 2, 2023 Author Share Posted February 2, 2023 I don’t even know what coil bracket version this would be? Number 10? Platinum racing helped me originally when i came up with the design to use the r35 coils on an L series. They helped with which coil to use, wiring harness, springs and stalks, so now we have teamed up to design this bracket. I never liked the giant bend in my coil stalks. I’m not loving the offset brackets, but it’s to keep the design size down and it would use the same aluminum blanks as the rest of their coil brackets. Also thank you Joseph Monti for the help along the way. I think I can live with this overall design. Quote Link to comment Share on other sites More sharing options...
madkaw Posted February 10, 2023 Share Posted February 10, 2023 Duffy, Do you know if the stalks can be modified on those coils ? I’d like to use them on my truck but I would need to have a 45 degree angle off the spark plug . Id need to go around the fuel rail . Quote Link to comment Share on other sites More sharing options...
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