CK5
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The Purple Camaro
- Thread starter Bent77
- Start date
Yes I still have this one too
Been trying to sort the tune out. with @fastazz running some very similar parts, I've been chatting with him about the fuel system setup and changes as well as the tune
Both of us are fairly convinced that my drivability issues lie in the realm of
1) cam overlap causing the ECM to cut low end fuel
2) Fuel accel settings are a bit tedious since the WOT fuel map starts at 50% throttle
on the street getting it to WOT doesn't really happen a lot, 20-40% will spin the tires with ease when it's fueling right
Kind of on a combination of learn some > turn all learn off > drive > rinse repeat
Been trying to sort the tune out. with @fastazz running some very similar parts, I've been chatting with him about the fuel system setup and changes as well as the tune
Both of us are fairly convinced that my drivability issues lie in the realm of
1) cam overlap causing the ECM to cut low end fuel
2) Fuel accel settings are a bit tedious since the WOT fuel map starts at 50% throttle
on the street getting it to WOT doesn't really happen a lot, 20-40% will spin the tires with ease when it's fueling right
Kind of on a combination of learn some > turn all learn off > drive > rinse repeat
So as we had discussed, some more in-depth adjustability would be very good.
Is that your thought?
Is that your thought?
Need to be able to control the WOT vs transition AFR in terms of %
An engine making 500+ lb/ft needs more fuel at 25% than some lazy truck engine. Needs to be off the cruise circuit
There is Accel fuel settings in the global. Your supposed to let it learn before messing with those per the manual
An engine making 500+ lb/ft needs more fuel at 25% than some lazy truck engine. Needs to be off the cruise circuit
There is Accel fuel settings in the global. Your supposed to let it learn before messing with those per the manual
I'm thinking that you should try using Holley Terminator to run this and give us a review!
#cuzurupforit!
#cuzurupforit!
You have my address, use your credit cardI'm thinking that you should try using Holley Terminator to run this and give us a review!
#cuzurupforit!
That’s on Wade’s side of the streetCan't you make side money with your "good" looks?
I mean, you are close to Trinidad..
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I was going to post the same last night.I'm thinking that you should try using Holley Terminator to run this and give us a review!
#cuzurupforit!
You also have a credit card
What’s the address
I did the cubs are kicking the cards arse
Shut up
Today update
saved last months meddling in the tune.
Warmed the car up to learn temps.
Dumped in a new tune and adjusted a few settings
AFR numbers are pretty normal 13.5/13.9/12.8
22* idle timing at 850
34 total and +5 on the vacuum
idles at 16-17" although due to the altitude always reads -4.3 when its turned off
so 12-13"
Given the cam is 230/236 @ 50 it's really pretty good
It's really close on the initial tune. Idle is fat, but no flat spot in the accel circuit even without any changes on the global
Really tempted to screen record it while it is running and turn the self learn off, then manually adjust in the global settings
Why?
Because in a week it starts pulling -29% LTFT while at cruise speeds (2k-3k)
Then it has a lean spot on tip in
Can't find a vacuum leak or exhaust leak
Fuel pressure is fairly steady
Can't get ahold on Edelbrock on their tech support
saved last months meddling in the tune.
Warmed the car up to learn temps.
Dumped in a new tune and adjusted a few settings
AFR numbers are pretty normal 13.5/13.9/12.8
22* idle timing at 850
34 total and +5 on the vacuum
idles at 16-17" although due to the altitude always reads -4.3 when its turned off
so 12-13"
Given the cam is 230/236 @ 50 it's really pretty good
It's really close on the initial tune. Idle is fat, but no flat spot in the accel circuit even without any changes on the global
Really tempted to screen record it while it is running and turn the self learn off, then manually adjust in the global settings
Why?
Because in a week it starts pulling -29% LTFT while at cruise speeds (2k-3k)
Then it has a lean spot on tip in
Can't find a vacuum leak or exhaust leak
Fuel pressure is fairly steady
Can't get ahold on Edelbrock on their tech support
Well give it some time and stuff Zim. The system you have is really good and has lots of support
Mine has a malfeasance
Just swapped out the MAP sensor from the truck and am continuing on testing
I will say this, when it is working, it is phenomenal. Throttle response, power, starting.
Never had any issues on the 350 that was in this, or much issues when the 406 first went in
Truck has been solid and it's been PF4 since 2018
Update on the MAP sensor
Originally swiped the MAP from the truck and drove it, seemed much better
Went by and picked up a new MAP (Standard products, GM spec) and installed it
Not saying it's fixed, but it's actually adding fuel back in in some places, and the lean on tip in hasn't come back even though I cut the fuel add out of the global for acceleration
I now have 2x 30 minute drives on it since messing with the MAP
Interesting to know, the other 2 MAP sensors and the faulty one all read the same at idle, WOT, and full decel
Originally swiped the MAP from the truck and drove it, seemed much better
Went by and picked up a new MAP (Standard products, GM spec) and installed it
Not saying it's fixed, but it's actually adding fuel back in in some places, and the lean on tip in hasn't come back even though I cut the fuel add out of the global for acceleration
I now have 2x 30 minute drives on it since messing with the MAP
Interesting to know, the other 2 MAP sensors and the faulty one all read the same at idle, WOT, and full decel
Leave me out of this.
had to time you with a sundial on that response
