probably not with stock injectors... you can skip a tooth and line up the timing marks again like they were from stock and that would leave your timing to (about) the same it is now but youll have room between your head and pump and probably take some stress off of your lines.
i am not an expert but it seems like the experts havent been posting much lately so ill take a stab at it. i think it will depend on how your injectors run. if they are dirty for whatever reason or put lots of fuel in there that needs more time to be completely burn you may need to do more timing. i dont know if a 435 would benefit for anymore than what you have now but you can only be the judge of that when you are doing the tuning.
There is a point when timiing just doesn't do anything but make alot of noise and drive up cylinder pressures and can actually loose boost. There are exceptions to this like when you are running massive amounts of fuels like a pump that puts out 400+ cc's of fuel and shower heads for injectors. If you bump your gear one tooth and back the timing on the pump down from the timeing mark an 1/8in you are right about 18-20 deg initial timing.
Just remember there is 12 deg of advance in the dynamic timing. I am have mine set at this timing running pods and 250cc pump and i have very little smoke at idle.
If you are only have stock sticks i would not bump a tooth until you have some more fuel goin in.
thanks for the info diesel, my truck with the timing to the head hazes a little at idle, little bit of white-ish gray smoke. it cleans up when u raise the R's but underload with a heavy foot it leaves a pretty hefty footprint. even with my air now it rolls the coal at WOT and thru out the boost and rpm range. bigger turbo time i guess.
yes sir i am, when i bought the 90 truck the injectors were freshened up with new stock nozzles and pop tested right before i bought the truck. and i bought that 2wd to build what i got about 2-3 years ago.
Im thinkin of the 60mm upgrade then eventually studs and an HT3B and run compounds. either with the stock sticks but with my power addiction.....a set of 435's or 6X16's :gun2:
Is there a writeup on advancing the pump a tooth? If i get into my front cover and do the kdp i might want to do the pump at the same time just so i have more adjustability now and down the road too if i get bigger injectors.
I just flat out dont know how to do it because i havent had my pump off for any reason.
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