Raymond Bunch
"Turbo Enthusiast"
- Joined
- Mar 20, 2002
- Messages
- 3,455
TT 5.6
Having an issue. Long story short, need some help in figuring out why there is such a big difference in fueling between my old BB PTE 6776 and my new Journal PTE 6765 turbo.
OLD TIMES - PTE 6776 BB/H cover/.63 - No turbo lag, timing 20/21, WOT fuel all gears was (138), and 1st gear off set was (120), with this said, the car 60ft 1.5-1.6 and ran 6.9-7.1 consistently in the 1/8 and 11.0-11.3 at 120 in the 1/4.
NEW TIMES - PTE 6765 J/H cover/.63 - LOTS of turbo lag, timing 20/21, WOT fuel (128), and 1st gear off set (110), with this said the car still appears to be running extremely rich. My last track outing towards the end of the day only netted 98mph 1/8 then feel on it face afterwards. 60ft was 2.3. car popped the IC hoses off a couple times, was running very rich, wrong spark plugs too. Autolite 23's
+Now to day during lunch time I went home and took more fuel out of WOT fuel all gears, it's now at 120), and 1st gear off set is now at (108). The cars feels much better! Pulls pretty hard and doesn't have near the lag. O2's were still 800+ with Alky/pump gas. .05 knock.
Even while power breaking it, building boost, O2's were 840-860!!!
Question of the day - Why is it still running rich with so much fuel being removed compared to my old setup with the PTE 6776? Also, during the runs today and easing into it, boost climbed slowly to 18 psi. It felt good, no hesitation, popping ect.
Tonight I will reset the ECM, check connections on the chip, grounds ect. Base fuel is good on the FPR 43 vac line off. I also put the stock maf back on. No vac line leaks, exhaust leaks or anything.
Question, why is it still running rich with so much fuel removed compaired to my old set up with the PTE 6776?
COMBO - Engine is a 020 over with coated diamond forged 8-1 pistons, Scat Stroker Crank & rods, Erson hyd flat tappet 224/224 505 lift 112 L.S. Ported Irons, stock rockers, Port matched intake, smith bros. push rods, file fit rings, premium bearings, 002 clearance on rods & mains, RJC deep pan, H.Duty oil pump & reworked oil passages front cover, Steel main caps, TT 5,6 60lb inj, Walbrow F/P, hot wired, Lou's trans guy built trans 3000-3200 stall, front mount I/C, ect.
Having an issue. Long story short, need some help in figuring out why there is such a big difference in fueling between my old BB PTE 6776 and my new Journal PTE 6765 turbo.
OLD TIMES - PTE 6776 BB/H cover/.63 - No turbo lag, timing 20/21, WOT fuel all gears was (138), and 1st gear off set was (120), with this said, the car 60ft 1.5-1.6 and ran 6.9-7.1 consistently in the 1/8 and 11.0-11.3 at 120 in the 1/4.
NEW TIMES - PTE 6765 J/H cover/.63 - LOTS of turbo lag, timing 20/21, WOT fuel (128), and 1st gear off set (110), with this said the car still appears to be running extremely rich. My last track outing towards the end of the day only netted 98mph 1/8 then feel on it face afterwards. 60ft was 2.3. car popped the IC hoses off a couple times, was running very rich, wrong spark plugs too. Autolite 23's
+Now to day during lunch time I went home and took more fuel out of WOT fuel all gears, it's now at 120), and 1st gear off set is now at (108). The cars feels much better! Pulls pretty hard and doesn't have near the lag. O2's were still 800+ with Alky/pump gas. .05 knock.
Even while power breaking it, building boost, O2's were 840-860!!!
Question of the day - Why is it still running rich with so much fuel being removed compared to my old setup with the PTE 6776? Also, during the runs today and easing into it, boost climbed slowly to 18 psi. It felt good, no hesitation, popping ect.
Tonight I will reset the ECM, check connections on the chip, grounds ect. Base fuel is good on the FPR 43 vac line off. I also put the stock maf back on. No vac line leaks, exhaust leaks or anything.
Question, why is it still running rich with so much fuel removed compaired to my old set up with the PTE 6776?
COMBO - Engine is a 020 over with coated diamond forged 8-1 pistons, Scat Stroker Crank & rods, Erson hyd flat tappet 224/224 505 lift 112 L.S. Ported Irons, stock rockers, Port matched intake, smith bros. push rods, file fit rings, premium bearings, 002 clearance on rods & mains, RJC deep pan, H.Duty oil pump & reworked oil passages front cover, Steel main caps, TT 5,6 60lb inj, Walbrow F/P, hot wired, Lou's trans guy built trans 3000-3200 stall, front mount I/C, ect.