madkaw

Latest updates are more tuning . I’ve now figured out have to get 2 x16 tables for VE and timing . I’ve also converted AFR so now I’m total Alpha male - lol. I haven’t driven since converting timing to Alpha N so that will take some time and knock ears . Weather has been so hot I haven’t driven the car in days . I also still have an issue with one bank O2 sensor . I must have a small leak somewhere that hard to find - maybe underside the header flange . I’ll have to try a smoke test to try and find it . Spark plugs all looked the same though my reading is wacky on 4-6 cylinders . So far mpg has been decent though that isn’t much of a consideration right now .

The thing runs so good I can’t believe they aren’t very closely synced . First time doing ITBS so don’t know what to expect . I think they have been very good . Alpha N is a bit of a learning curve . I think I figured out I how to get 32 table for VE - but it runs well with 16 . I have a good MAP signal and I can see why some would use or try MAP density . I have a 3/4” log and soon it will be 1” . I will try it sometime just to prove to me - ha .

The synchronizer reading will be 5 on the first carb and 7 on the other two . Not sure how much off that really is . If I try and adjust the idle screw on the first ITB , that moves the other two based on how the linkages are overlapped .

I guess I don’t know how that’s done and what it does . I run cable that moves first ITB that moves the rest . The first ITB needs more air but there’s no way I can see to adjust its linkage without moving the others . I hooked up the cable and this engine started and idled great - so no real complaints !

I don’t need much and it’s just on the first ITB. Maybe really have to crank out the bleeder to get anything out of it ?

Did you have to use the air bleeds to balance ports ? I tried opening one up and didn’t get any response in the air .

Thanks so much !! I will study these . I’ll download your tune and look at it . Sounds like our engines are very similar . what head and port size ?

Are you running Tunerstudio? Either way would you share some screen shots of your tables ? Curious how efficient you have the motor running as far as power vs mpg ? 45’s to small or looking for more power ? I think my small port head will like the smaller ITBS . You have a thread I can read up on ? thanks

All I’ve read in my adventure is that there is no way to run ITBS with speed density correctly . After tuning with MAP for years I see why you have to run Alpha . ITBS put you at atmosphere pressure so quickly with no plenum . It’s a challenge to rethink how the tables work with ITBS for sure .

You should really just post on FB because they love trolls and useless posting there

What’s funny is that just cruising around is all I’ve got done as far as a tune . I’ve got a Z friend Yanni Maltabes that use to post here I believe . He swears he can help me tune purely alpha N and it will as good as MAP . I’ve also come to the realization that I can no longer be lazy about learning Megalog viewer and analyzer . Maybe also got lucky that these FAJS ITBS seemed to be very solid right out the box . Solid idle and good enough to drive and tune . I also know my engine very well so I will know when I have it right . Who knows if I will stay the course forever or try my diesel intake later . Are you running the ITB or Alpha N ? Yanni tells me he can run every table strictly from TPS - which seems daunting . When I started reading about scatter plots and needing data logs from MAP runs to utilize ITB mode in MS is when I decided to go strictly TPS . I will have MAP in the background

I’ve been making an effort to get back to the forums . I usually post a link to here when people ask about stuff that’s been documented here for decades . My last job as an over the road locomotive engineer gave me lots of time in hotels to document . Now I’m retired and busier than ever - but use that as an excuse to not post . The forums saved me money and time and I’d like to pay it forward ! Now I’m the local Z guru which has made some cool connections and projects . I wish there was a better marketplace than FB - but it’s probably the best thing about FB- lol

It’s been a while since I’ve read on this thread. I wish I was # 23 ! Wish the thread did see more action as well as the site . I’m so tired of the FB shit

Ordered some cheaply sponge filters while I wait for my CAI box to get finished . Made a smaller vacuum log -3/4” PVC pipe . Despite having one of my widebands flaking on me I was able to drive around well enough that I wasn’t scared of dying on the road anywhere . Not much help out there for guys running MS and ITBS. Seems most Haltech or others . I’ve also got different perspectives on how to load certain tables . I have Yanni saying that all the tables can be run off of TPS and Richard that says running timing off of MAP is best . Presently I am going to try and run it all TPS . I can only hope the FAJS version of a TPS is accurate and reliable . I might eventually go with a contactless style from EFI hardware . For now I haven’t gotten past 38% TPS on my tuning so I’m not stressing my TPS to hard that’s for sure . Honestly - I didn’t think it would run even this good this early in the tune . I am trying to be patient with throttle input since I do hit big lean spots . I am also learning how to use Megalog Viewer at the same time that has a VE analyzer which is pretty damn cool .

Drove around yesterday with heat shield on . The tune is pretty rough and and sometimes the car wanted to die from starvation -scary . I used timing to lower idle after reading about a trick to deal with hit idle . Might have to call on Richard to help me remotely . Lots of rain right now so driving time is scarce .