2005 Tahoe ppv lq4 swap questions

[Trxmxzx]

When I did mine I multiplied the whole ve table by 10 percent and took it right up to 6800. I saw a brief amount of knock activity in log 8,only like 1 or 2 degrees for a second maybe.

Probly can't open the tune cause I had to update the software while brushing year olds teeth and rush back downstairs to help with dinner, lol. I'm sure I pricy just need to restart the 'puter or something.

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So you copy and paste a new VE and run it to the moon huh- damn

To be honest I was scared to run it to the moon- it's not my truck- it's a good friends, and I talked him into doing all this, I would hate if I destroyed his motor

[Jetmech442]

Wow, so a single beer and battlefield 4 and apparently I post like a tuning-tough guy lol. No I had 2 months of fuel pressure issues and issues from not initially having a clutch switch, and throttle cracker issues. So by the time I was doing my real runs I was confident I could take it up to high rpm.

You're a cool friend. Keep going and it will be a real solid driver.



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[joecar]

lol

you add a little more to the high end of the VE to be safe (so that the tuning process brings it down to the correct level).

[Trxmxzx]

Wow, so a single beer and battlefield 4 and apparently I post like a tuning-tough guy lol. No I had 2 months of fuel pressure issues and issues from not initially having a clutch switch, and throttle cracker issues. So by the time I was doing my real runs I was confident I could take it up to high rpm.

You're a cool friend. Keep going and it will be a real solid driver.



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No problems friend...


JET- So what is your cam btw? 228-115lsa that's all the info you've mentioned. What does your VE table look like for a comparison!? Im curious

JOE- when you say fudge in some higher number how much you talking? 4K- and up? 5K and up ?

[Trxmxzx]

some quick observations:
frame 2750, you go dead lean for like, 2 seconds. WB an dNB both confirm this is on both banks. Throttle was pretty steady. RPM and map was about 1900 and 25kPA. You hit these same conditions later on so it's not an issue with the VE table. this is something else. Do you remember perhaps feeling it go light on power briefly. To me, this points to fuel delivery(pressure maybe), or the pump coming uncovered by fuel(can't remember what vehicle you have).

I noticed you don't go above ~3K, have you logged the higher rpms also?


edit:just saw another one at frame 5760, sameish rpm and idle.

When You say lean- how lean? my AFR is fluctuating Excuse the graph im still working on it. I see my o2 sensors come off pace

[joecar]

From say 4K to 6K rpm, and above 75kPa.

[Jetmech442]

I was zoomed out a bit more, Look at 2740 to 2750,both nb02s go high(going high on nb02s doesn't give a lot of info), so look at the WB02 reading, if I remember it was an EQ of about 5 or so.

As for 5760,let me recheck the frame it happened during bedtime. But you should be able to find it, your just looking for the WB02 EQ channel to go above 1.7

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[Jetmech442]

frame 5760 -I was looking at log "Log_10 eway to shop 2 4_15_16". The pic below plots WBO2LAM from that file and shows lean (also the HO2S11 and HO2S21 both go lean. Are we looking at different logs?

My Cam is the TSP 228R ground on a 115LSA. I don't remember the specs, but the duration and lsa will give you overlap(and thusly how much effort it will take to tune).

When Joe was talking about fudging number from "4K to 6K rpm, and above 75kPa", that's what I was referring to about multiplying those areas by 1.10 (10% increase). That usually makes you run safely rich up high when you go zinging it up to the moon. Then CALC.MAFT will dial you back down to where you need to be.

[Trxmxzx]

frame 5760 -I was looking at log "Log_10 eway to shop 2 4_15_16". The pic below plots WBO2LAM from that file and shows lean (also the HO2S11 and HO2S21 both go lean. Are we looking at different logs?

My Cam is the TSP 228R ground on a 115LSA. I don't remember the specs, but the duration and lsa will give you overlap(and thusly how much effort it will take to tune).

When Joe was talking about fudging number from "4K to 6K rpm, and above 75kPa", that's what I was referring to about multiplying those areas by 1.10 (10% increase). That usually makes you run safely rich up high when you go zinging it up to the moon. Then CALC.MAFT will dial you back down to where you need to be.

Yes same file- Why is my graph showing different in the same area

Cool looks like I need to run it to the moon soon lol


Update: I see it now in my graph- I adjusted it smaller

I will check rail pressure next

[Trxmxzx]

Got a electronic fuel pressure gauge yesterday from a friend- will be giving updates soon on pressures