Alright so over the weekend last weekend I installed some gauges and also turned my fuel ratio screw in some more. My boost maxes out at about 25 psi and when I hammer on it I can get it to climb to about 1300 degrees. But when I rev it in neutral the rpms really seem to hang around in the higher range. I just ordered a 366 spring and should be getting it early next week. Is it possible that this will stop it from hanging around like this? What else is causing this?
On another note, I've been thinking about pulling the AFC lever while I'm inside the pump for the spring swap. Anybody else done this? What kind of egts are you getting? How much more boost did you get? Did you Luke it?
Re: Pump Mods
by Remps » Thu Aug 08, 2013 7:49 pm
Make sure the throttle snaps back all the way back to the idle position with the engine running. If it isn't make sure the return sping is on correctly or add another spring. It will be a pita to drive without the afc lever with anything bigger than stock injectors. Even with stock injectors it will be really smoky before the turbo spools if you give it slightly too much pedal. It will flow a few hp worth of fuel more, but imo not worth it. And if the throttle still hangs you may have to turn the pump down slightly. 1300 is as hot as you want to go anyway.
'90 D250 R/C,727,IC,6x.009's,1/8" bump,fuel psi,straight pipe w/5" stack.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
'90 W250 R/C,47rh,K@N,HX35,1/8" bump,2nd gen IC,boost,egt,trans temp.3.07's.
'96 2500 S/C L/B,2wd,NV5600,3.54 L/S,cai,egt,pacbrake,mbrp exhaust,10 plate.
Bring back the Bank of Canada, PRE- 1974.
-
Remps - 14mm rotor
- Posts: 1128
- Joined: Sun May 03, 2009 12:57 am
- Location: Saskatchewan
