Good morning, folks,

(Or good afternoon, depending)

I just found this forum, and it looks WAY cool!

I need some help with my s2000 motor. I currently have it in a pretty fast race car and I'm pretty sure I do not have the cooling system hooked up correctly. Just last night it started pumping water into the oil (not a good sign, I know) while it was idling, i.e., major overheating at some point in its life, so I must have plumbed something wrong.

Does anyone have a diagram of where all those little hoses go, and what they do? Actually, what they do and why they are/are not necessary would be way more helpful since I don't really need a heater, or a throttle body warmer.

Also, some thermostat theory would help. Since I only run wide open and only for short periods of time, usually 2 1/2 minutes or less, is one really necessary? My small block Chevy will run cooler if I leave it out, but I remember an old Mercedes I had would overheat if I took it out.

Any help would be appreciated.

Thanks,

Jim Knapp

Life member 200mph club

 

what kind of car do you have the motor in?

How could you tell water was getting into the oil? Are you sure it's not coolant? If it's coolant, probably the headgasket is blown.

Definately leave the thermostat in there! The whole purpose of the thermostat is to monitor your engine temp and allow the coolant to cool it off at a specific temperature. If you take it out, it will definately run too cold and cause harm to the engine.

 

The motor is in the world record holder G/Gas Streamliner.

Water or coolant, it's the same difference. Either way oil and water have come together.

And I know what thermostats do, but I'm still not sure I need one. The motor just runs wide open for about 2 minutes and then we shut it down for an hour or so and cool it off between runs. The car has no radiator (too much wind resistance). Just an 8 gallon tank of water.

And I still need to know what all the little hoses do. Can you provide any help on that.

Thanks,

jim

 

You will probably need to buy an S2000 Service Manual from Helms Inc..

With regards to the thermostat, I wouldn't run without it, just because you don't want to run the engine hard when the coolant is too cold, even if it is for only 2 minutes.

 

You're at Bonneville? What speeds have you reached?

(Sorry, I have no technical info about the coolant system - the Helms manual is probably the best place to start.)

 

[QUOTE]Originally posted by BL00S2
How could you tell water was getting into the oil?

 

Yeah, I just pulled the head. .008" warped so we're going to mill it.

We set the G/GS record at 208 on 100 unleaded, switched to 91 octane and ran G/Fuel Streamliner ("fuel" because of a peculiarity of Bonneville rules) at 221, and finished off the week with a 239 just as a front tire came apart (4000rpm at the tire can do that). Mostly the increases were from learning to drive the car and working on the tune.

Going back next week with 2.56 rear end instead of 2.73 to see if we get over 250 mph.

I think we run even faster than Formula One. The fastest current F1 speed I've seen is about 220 mph.

Jim
Jim

 

Wow - 250MPH.

Now try turning like an F1.