LQ4 into a 3rd Gen/1972 Nova
09-07-2012, 10:08 AM
#1021
Actually it is $265 and thats before shipping, shipping from them is ridiculous and probably $30 for a camshaft so it would be a lot closer to $300 for it and that is what most places charge for one new... so if you found it for under $200, please let me know. http://www.gmpartsdirect.com/catalog/frameset.cfm
sorry for hijack OP, just hate when people post mis-information. Your build is awesome and hope you get a nice new engine and pcm to work this time around.
You can also try ws6store.com. They are a sponsor on here and have great prices, free shipping if you spend $100 and actually stock a lot of parts as they have 3 warehouses.
sorry for hijack OP, just hate when people post mis-information. Your build is awesome and hope you get a nice new engine and pcm to work this time around.
You can also try ws6store.com. They are a sponsor on here and have great prices, free shipping if you spend $100 and actually stock a lot of parts as they have 3 warehouses.
09-08-2012, 06:35 PM
#1023
Been driving it for a couple hours today. My problem with the tune was that no matter what, with or without STFT, it was running way too rich. Tried AFR error tuning it and wasn't getting too far. Then I remembered that Mark's data for these injectors was 6.35g/min or whatever the unit is, and I entered that for the first startup and stuff was way too rich, and then I went to calculate it to verify and for these 52lb/hr injectors at 44psi, I needed the value 5.25 lb/hr and used that to start up again. All this was 1st startup of stock engine way back when.
Anyways, today tried the car with the old 6.35 injector flowrate instead of the 5.25 that I was running rich with... started up and idled 13ish to 14 AFR with no STFT, so that got me close. Then drove for a couple hours AFR tuning and was getting in the 14's mostly for 1500-2500 of 2nd and 3rd gear mostly, trying to shift as little as possible. Then just driving home with ECT at 210ish and IAT at 36ish (slow stop and go traffic) engine went from having no STFT to compensating to up to +40ish % STFT and bogged down to 10ish AFR. STFT was turned off in the tune, and Closed Loop was also turned off in the scanner On/Off section.. why in the sweet **** did STFT suddenly decide to turn on??
In other news, I think I finally nailed the stance
. Even considering lack of interior, rear shocks (200ln/in) are too stiff I think, are very rigid in the stiffer "**** settings" and too bouncy in the easier **** settings. Might try some 175in/lb springs and increase the **** damping. Front QA1 conversion coilovers are a bit soft with the iron block and turbo at 450in/lb, I would try 500in/lb and lower the coil ring on the shock body to get right ride height.
Anyways, today tried the car with the old 6.35 injector flowrate instead of the 5.25 that I was running rich with... started up and idled 13ish to 14 AFR with no STFT, so that got me close. Then drove for a couple hours AFR tuning and was getting in the 14's mostly for 1500-2500 of 2nd and 3rd gear mostly, trying to shift as little as possible. Then just driving home with ECT at 210ish and IAT at 36ish (slow stop and go traffic) engine went from having no STFT to compensating to up to +40ish % STFT and bogged down to 10ish AFR. STFT was turned off in the tune, and Closed Loop was also turned off in the scanner On/Off section.. why in the sweet **** did STFT suddenly decide to turn on??
In other news, I think I finally nailed the stance
. Even considering lack of interior, rear shocks (200ln/in) are too stiff I think, are very rigid in the stiffer "**** settings" and too bouncy in the easier **** settings. Might try some 175in/lb springs and increase the **** damping. Front QA1 conversion coilovers are a bit soft with the iron block and turbo at 450in/lb, I would try 500in/lb and lower the coil ring on the shock body to get right ride height. 
09-09-2012, 09:04 PM
#1026
Hey Greg, the front bumper isn't on because I had to modify the bumper brackets to lower it relative to the subframe (because w/o subframe bushings the subframe went up relative to the front sheetmetal) and I've honestly been too lazy to mock it up to check that my cuts were the right amount. I cut the brackets to also tuck the bumper a bit closer to the car. Mod'd brackets are just tacked together as well. Gonna check it out tomorrow night so I can final mount it, put the running lights in, and have enough resistance in the system to actually have working turn signals.
Very happy with the stance now, and holy **** these Hawk HP pads make a LOT of brake dust, but damn they're stoppy, and with the same level of pedal force as boosted brakes, maybe even less!
Also did about 8hrs of driving and tuning on Saturday and it is running quite well, only very rarely does it blip super rich. It will get stuck in full rich if STFT is on since it appears one of my narrowband O2 sensors is reading way off, and so bank2 immediately goes full compensation rich (25% or upwards of 40%!!) and then bank1 leans out to try and compensate possibly, but only 10-15% lean. Even with STFT switched off in the PCM, it still turns on in the scanner. Maybe I have to do a write entire? Anyways at the beginning of each scan I have to force-Off the Closed Loop and Fuel Trim Learn in the HPTuners scanner On/Off window. *****, oh well at least it's some forward progress.
Oh and then I started getting into boost just for *****, recorded upwards of 6psi.. holy crap.. just keeps pulling...
Mark can attest to this better than anyone, but first satisfied smile on my face from this car! So much hard work seems to be finally paying off..
Very happy with the stance now, and holy **** these Hawk HP pads make a LOT of brake dust, but damn they're stoppy, and with the same level of pedal force as boosted brakes, maybe even less!
Also did about 8hrs of driving and tuning on Saturday and it is running quite well, only very rarely does it blip super rich. It will get stuck in full rich if STFT is on since it appears one of my narrowband O2 sensors is reading way off, and so bank2 immediately goes full compensation rich (25% or upwards of 40%!!) and then bank1 leans out to try and compensate possibly, but only 10-15% lean. Even with STFT switched off in the PCM, it still turns on in the scanner. Maybe I have to do a write entire? Anyways at the beginning of each scan I have to force-Off the Closed Loop and Fuel Trim Learn in the HPTuners scanner On/Off window. *****, oh well at least it's some forward progress.
Oh and then I started getting into boost just for *****, recorded upwards of 6psi.. holy crap.. just keeps pulling...
Mark can attest to this better than anyone, but first satisfied smile on my face from this car! So much hard work seems to be finally paying off..
09-10-2012, 01:24 PM
#1029
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I haven't played with the obdII stuff yet, but-
Should be a temperature setting for when STFT commences. STFT enable or something similar.
Set it to a high value and it will never enable.
Not sure if that will force it to OL though.
Another way is to change the amount that LTFT & or STFT can adjust by.
Should be a temperature setting for when STFT commences. STFT enable or something similar.
Set it to a high value and it will never enable.
Not sure if that will force it to OL though.
Another way is to change the amount that LTFT & or STFT can adjust by.
09-13-2012, 11:18 PM
#1034
Well it's official, I've created a monster. Through studious "testing and tuning", it now gets good AFR under boost from 2500-5000rpm, and I'm relieved to know the wastegate isn't undersized as it's cutting that boost off at a steady ~6psi, with no fiddling around from my electronic boost controller yet. It just keeps pulling. It's crazy. The whooooosh is like a jet engine! Best sound ever? My BOV is over sprung a bit I believe. It doesn't open under normal vacuum (good thing) however it makes that annoying studdering compressor surge sound when it vents when I let off the throttle. Mark has a nice consistent "pshhhhhhh" sound, that's what I need to get going.
09-14-2012, 12:07 AM
#1036
I'm definitely down. Sounds like Ryan has to book off the evening months in advance, but the 3 of us or any others could go for a little puttputt.. maybe not all the way out to mission tho haha. I'll send out the offer in a mass email when I get back next week.
<----thats an order haha
09-14-2012, 06:43 PM
#1040
