too much boost???
too much boost??? I am tuning my friends 08 vette with a 416 stroker and vortech t-trim making approx 15psi, and dialing in the wot I had it steady at about 10.5 afr so I took out about 8% fuel and then all of a sudden the next pull its going up to 15:1 afr after a second or two into the pull, the car has tr6's gapped to 35 thousndths, I was gonna throw some tr7s in there, I haven't even pulled the plugs yet but figured I post up for some ideas
I have siemens 80lb inje@ctors which are rated at 83lbs at 3 bar fuel pressure so I set the regulator to 43.5, I have a bosch 044 pump in parllel with the stock pump and a hobbs switch for 4psi of boost, and the injector duty cycle seems to be very close btween pulls, I was thinkin that maybe the spark isn't igniting the fuel, and I know when you send raw fuel through it will read lean on the wideband
Btw I also scaled the tables 50% for the injectors
Btw I also scaled the tables 50% for the injectors
I put in some br7ef plugs gapped at .030 and I made about I passes and was dialing in the afr and now the same ****, so now I gotta pull the plugs again, anymore ideas lol
pulled the plugs, and the straps are very white, so im gonna recheck the calibration on the wideband and jump out the extra pump and see what happens, gotta make sure this hobbs switch is working
I thought 7's would be more than cold enough, and no when the problem happens it just pops and goes way lean, and today when it happened the car barely made it home, but the plugs weren't melted at all, just the straps were very white, like a lean condition..
I was gonna order another set of ngk 7s and run the gap at .26
I was gonna order another set of ngk 7s and run the gap at .26
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'
Brett Foote
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Only have a gauge on the regulator so no, but this is happening instantly when I hit wot at about 2k rpm where the stock pump would be able to support the power, like I said though I wanna verify this wideband is reading properly and jump the hobbs switch so I can cancel that out of the picture, and my vacuum/boost line to the regulator is kinda old and dry, so I'm gonna replace that as well, so ill let's u know where I stand tomorrow
Thanks for all the help
Thanks for all the help