R&C_rallySS

I thought that was the problem. Not having a returnable fuel system. returnless is what we have isn't it?

Halfcent

The fuel system is not the problem. Read the rest of the thread. It doesn't matter that are returnless. In fact, it's a simpler system.

redrocket

Speaking of heat destroying number 4, what kind of coolant temps are you guys seeing in traffic? I have seen 220 sitting in pittsburgh traffic on an 85 degree day. To me this is more than I'd like to see. I had 600 HP bored out 454 in a chevelle in North carolina and never had the coolant temp over 200.
Anyone else seeing 220 or more???

Coblt ss super

dam tahts pretty high, sitting in the 85 degree weather my coolent temps are at like 160-170, driving its always in teh 180's

redrocket

Yea, I thought it was too high also. Driving it stays between 170-180.

Coblt ss super

yeah 220 is very high

p7x

cooling problem with a hint of fuel restrcition is my guess.

solution: Loss the artifical sun we call the M62

just my 2 cents

Coblt ss super

haha with wat tho?

p7x

turbo, twinscrew, whipple, asmatic mouse. Tough because these arent really available but options none the less.

Coblt ss super

yeah i want a whipple, and i cant go turbo, im staying with the blower

p7x

well after blown-4-banger builds his car we could all use the template for a W140AX. High hopes here......

Coblt ss super

a wat? is that for a whipple you mean?

p7x

thats a big ass whipple S/C. Whipple was going to make a w75ax, which would have been perfect for ours cars but to my knowledge they never put it into production. Or maybe they did but I can't find it offered anywhere.

Back on topic: COOLING

JapEatr

iTrader: (9)

i see high temps in traffic as well ... need lower temp tstat

zinner

It's not the thermostat...


You can't have your car sitting in traffic and then decide to go WOT and go ***** to the wall.

Halfcent

It's not the thermostat meaning it has nothing to do with the high coolant temps people are talking about or the #4 cylinder problem?

Mikey851

I think he means the higher coolant temps. He's saying that with HP Tuners you can adjust the fan to turn faster at a lower temp to keep it cool. If i'm not mistaken it's not abnormal to climb up to around 215 or so after some "spirited" driving and then sitting in traffic, although it wouldn't hurt to keep that from happening.

zinner

If you aren't moving then the coolant isn't being cooled in the radiator, well at least enough to lower it on a hot day. So the fans need to move air and do that job, in lou of the car moving through the air. Since the fan doesn't kick in until 196 degrees the thermostat opening won't really help cool the coolant if you are just sitting there.

So even with a lower temp thermostat you can't really get the car below 192 sitting in traffic. 192 being the lowest temp you can command the fans to turn on.

Note:
If you run the AC that can cause the fans to turn on regardless of the ECT due to AC coolant pressure.

SScarTuning

Well I can tell you that JapEatr's tune has the fans coming on earlier and at a higher percent. When it is 80+ degrees and 90+ humidity cooling is a challenge for the stock fans. He really does need a thermostat

zinner

If the stock thermostat opens at 180 degree a cooler thermostat isn't going to help if you can't get the ECT below 180. If you want to get the engine temp below 180 thats when you need a cooler thermostat. Is that what you are saying?

With the way the LSJ operating system is configured it's not possible to get the fans to come on cooler that 192 degrees using the standard map. If the car isn't moving a lower thermostat isn't going to keep the ECT from rising. You could of course rig up something to get them to kick in earlier with a bypass.

Mikey851

Today it was approx 95 degrees here in Houston with high humidity of course. I was sitting in traffic for long periods of time and when my temp would rise too much I just cut the AC on to MAX and recirc (Kicks the fans on). This kept my coolant temp at around 190 degrees for over an hour.

redrocket

True, I can drop the temp by simply turning on the A/C and it drops rapidly. A thermostat IMO has nothing to do with it as it runs 170-180 90% of the time. If I remember correctly about a year or so ago I saw a thread where others were also seeing this while sitting in traffic so I didn't think much of it. However I would like to keep the temps down as much as possible, say 100% fan at 200 degress. HP tuners here I come.
Keep in mind this is sitting in traffic, not at a light.

Area47

my car never gets of 194 degrees


then again, i really don't beat on the car as it is

lsjwannabe

iTrader: (1)

I believe it is more related to the fuel pump most people blowing the pistons are on 60# injectors so we are wprking the stock pump twice as hard to put the fuel out. Anyone ever think of running two fuel pumps like the solstice gxp.

Coblt ss super

how would that work? putting 2 fuel pumps and then 2 fuel lines, then having 2 seperate entrances into the fuel rail? and then a line in the middle of the rail so the excess gets sent back to the tank?