This is my first post here so please bare with me. I have always wanted learn how to tune so this is my first big stab at trying to. I have never tuned an EFI car before or used HP. With all the various tables that are in HP I am trying to gain knowledge and understanding of them.
I have been trying to create a repository of links, tune files and countless youtube videos so I can expand my knowledge. The largest hurdle is that I am afraid to make changes on my own because I do not want to damage my enginel. Thing is, I dont know exactly "what" to change.
Short background is that I have built my 97 LT1 turbo Trans Am from the ground up myself and it has been a great learning experience. But with me dumping all this money into it, I'd like to protect my investment. I converted my LT1 ignition system so that I could have local tuners tune my setup and so I could also make changes when needed.
Upon startup, the car runs for maybe 3 - 4 seconds. I think it has something to do with the injector pulse and the stock file thinks im running 22lbs injectors when I am running ID1300s. I really need help guys! I will also attach the stock file and the brief startup log too.
Fuel: Squash Performance Dual intank 450lph, -8 feed and return, Aeromotive boost referenced FPR, ID1300s on E85
Ignition: LS 0411 PCM converted from Opti fart, LS1 coils, BR7ef plugs, Accel 300+ plug wires
Induction: Billet S480 T6, 1.10a/r, 96mm turbine, 2.5 crossover, dual 44mm gates, FMIC, 4" down pipe, 50mm BOV
Boost management: AMS500 V2 (Looks and operates identical to the AMS1000), AFR500 wideband, HPT Pro
Trans: Th400 w/brake, 3000 stall, B&M pro ratchet shifter
Suspension: Viking coilovers all 4 corners, BMR tunnel mount torque arm, Founders lower control arm, BMR k member, 3 point UMI subframe connectors, founders adjustable panhard bar
So any guidance into the right direction would be great as I need a lot of help! Anything you guys could do to help me get on the road would be deeply appreciated!!!
Ill take a short stab. Honestly I haven't looked at your log and tune yet. Always First make for damn sure your injector data is correct. Then make sure your map liner&offset tables are correct for that msd 3 Bar sensor your using. Upgrade to a 2 or 3 bar speed density o.s. (operating server). After this i would definitely make the VE table rich in all your part throttle and boost areas. Now that iv'e typed all this i will say there are some who would say tune the idle first. Personally I believe its the smart thing to do. maybe someone else will chime in. Im not to knowledgeable with boosted applications honestly, so read at your own risk.
I have added the correct injector data and I have changed the values to accommodate for the 3 bar map sensor. Scared to change the values in the VE table. If I had a theory or formula to go by, then I would do it
If im not mistaken your going to have to populate the ve table since your os upgrade. when you go to a speed density o.s. sometimes the ve table isn't populated at all. Which seems to be the case in you tune.
Last edited by Oleblu; 10-06-2016 at 10:20 AM.
Reason: typo