Sometimes my mods are dictated on what's available in the market section. Some parts are perfectly fine used at a huge discount.
Bench racing: Heat Exchanger VS. Pulley/Tune for first mod.
- Thread starter finally03gt
- Start date
Tune will change your car not to pull timing until 130 (depending on tune)
The question is do you want that?
I mean the ECU pulls timing for a reason... it gets hot, it pulls timing to keep the engine safe.
The factory timing leaves meat on the table in case some nitwit or broke-ass decides to fill up with 87/89 octane. (Although, I did have to fill up with 89 one time because 93 was nowhere to be found for a while thanks to that brief gas crisis. Poured a bottle of octane booster in it and hoped for the best.)
To answer OP's "2. HP lost due to heat soak (on pulley and tune)". I did a recent back to back dyno pull with no dyno fan in 4th gear 2500-6200 and lost 10 hp on the 2 pull on my current set-up. No funny business of cool down or wiring the pump and it was 85ish outside.
Here is what heat soak looks like on the dyno with the stock supercharger and stock intercooler system, 2.6" pulley, CAI, and tune. All runs were back-to-back with no cool down on a mid-60 degree day. You do feel the power loss on the street.
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I would go pulley and tune for sure. Heat soak isn't a major issue if its a daily and you aren't trying to squeeze every ounce of hp out of the car on the way to work.
I'm running a tvs with a 2.4 and I daily drive my car. Only cooling mod I've done is the larger resevoir.
I'm running a tvs with a 2.4 and I daily drive my car. Only cooling mod I've done is the larger resevoir.
Isn't this dyno from a 08? Op has a 2011 and a different he.
Regardless the op most likely wont be doing 3 back to back pulls.
Yes, 2008. Just providing the info he requested, and a 2011 is susceptible to heat soak as well. My C&R HE fixed this and still works well with my Whipple.
Guys, I appeciate it all. 99ssls1: I'm watching you man...... I know it isn't the most effiecent and far from best heat solution, but $130 for two fans on stock HE keeping temps 110-120° Seems like a nice "bandaid". On a side note, I'm assuming you guys are watching AIT's with a hand held tuner? If I can scrub some heat, Evolution has the pulley, idler bracket, plugs, sct3, and JLT carbon intake for just over $1k. In the mean time, keep the eyes peeled for a used HE?
guy was selling a new in box AFCO for $640 in the classifieds... 150$ off is decent!
i have that same kit, it definatly woke the car up. my AF stayed around 11.4 at WOT
Good to know guys. I'll have to keep my eyes open...
Yes I am logging the iat2 via laptop and sct on live link.
Well you do tune and pulley and just enter heat soak faster. Raise the temp in which timing is pulled and just get the system even hotter. Just take longer to cool down. HE will keep the car cool and allows the power you have to always be there. Might make the difference in stop and go traffic when it frees up and the guy beside you wants to play before you drive 10 miles down the road trying to cool off
I know many will scoff, but I think I'm gonna try a pair of fans for $150 on the stock HE. See what happens.... If I can keep enough heat off the IAT, then on to the pulley/tune. IF not, hell the fans with sell at a swap meet for at least half price.. call it a $75 experiment.
OH.... and if the fans added to stock HE put a dent in it, then after the pulley/tune, go KC to really kill the heat.
What fans are you goimg to use?
99SSls1 is about to try these out.
"http://www.summitracing.com/parts/prm-19128/overview/
The fan I got, 8" and it flows a eye popping 2400 cfm!"
I suspect they may be a touch big, but we'll see, that's alot of air.
"http://www.summitracing.com/parts/prm-19128/overview/
The fan I got, 8" and it flows a eye popping 2400 cfm!"
I suspect they may be a touch big, but we'll see, that's alot of air.
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