Coolant temp only 150*?? cause bogging full throttle?

[shanez]

Ok, so here's there rundown:
93 240sx w/redtop
everything stock besides front mount and exhaust and hks bov and walbro pump.

I hooked up my aftermarket temp gauge and I am only reading MAYBE 150* after driving it for quite some time. I can hit boost (~8-9psi) doing 1/4 to 1/2 throttle and it picks up like a raped ape with no issues. I also get a funky small misfire when idling.
Then when I try to speed up full throttle or down shift and punch it, my car bogs out like a mofo with no power. So, things I've checked:

injectors: 11.8ohms on all four
TPS set to 0.5v when car is off and throttle closed
MAF showing 1.5v at idle
Plugs gapped to .035 on bkre6 NGK

I am just wondering if the coolant temp not getting up to normal operating temp would cause it to run s*** like that. The needle on my stock temp gauge goes up a little over 1/4 of the way too so I think it's deffinately running to cool. Any ideas?

[compactfean]

Sounds like thermostat is opening a little early, and yes it'd possible for the ecu to stay in cold start mode and run sluggish if the engine isn't warmed up.

[biggie]

Where are you reading the temp from (where's the sensor)? Does it warm up when just sitting at idle and not moving?

[shanez]

The temp sensor for the aftermarket gauge is on the driverside coolant hose. It barely warms up when just idling for like 5 mins. It probably only really gets to like 125-135F. Then while driving it reaches almost 150. That's way to cold isnt it? It's running the stock clutch driven fan too. No electronic fans.

[biggie]

Eventually you'll want e-fans. Sitting at idle for long enough time it should reach 170-180 degs or so without an issue, even if the thermo is opening too early.

But does sound like the thermostat needs to be changed first.

[shanez]

Okay, so this afternoon I went through and pulled the fuel pump out to see if it was actually a walbro like the guy who I bought it from told me. It was but the jackwagon didn't change the strainer and it was completely coated with redish orange putty looking s***. I took it off and sprayed it down with brake cleaner and put it back for now. I think I need to clean the tank bad. Oh, and I changed the thermostat and my coolant temp now reads ~170F like it is supposed to. I drove it home and it ran much better it seems. I feel like the clogged strainer was probably a main cause for the bogging.