Lifetime Premium Member
Join Date: Apr 2007
Location: Minneapolis, Minnesota
Thanked 0 Times in 0 Posts
Re: 180 tstat and intake manifold temp
For those fan and stat mod followers. I had a thought on the way to work this morning. Obviously the Jeep engineers selected the components to (thermostats and relays) to achieve the best possible HP given specific conditions. As in refrigeration, we size our systems based on the worst case senarios. I have heard a few of you mention that you feel a little better response when the weather is cooler. I may not know much, but lowering your engine temp via jumpering the thermostats or putting a 180 degree stat doesn't seem to correlate with more HP. I am confused. HP comes from a dense fuel to air ratio along with compression, timing and a whole lot of other things. However, if you take an SRT8, designed to preform on the worst case senario, how does lowering the engine temp do anything for HP? When in fact it's the cooler more dense air combined with fuel which makes more HP? Not sure I follow the logic on these mods.
I have a 1996 Jeep Cherokee with a stage II Jet chip and it recommends a 180 degree thermostat because it changes timing, fuel to air ratios and a number of other things to make the engine run hotter. That's the only reason why a person would want to change the stat. I also put in a larger radiator because even with the cooler stat, the stock radiator could not disipate the additional heat generated by the upgrade. I really don't see this need in the SRT8's. Just my two cents. I could see making the change if you made drastic tuning changes like adding a turbo or super which by nature would make the engine work harder.
2007 SRT8 - Black
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(And no, it's not a drug reference!)