A good day at the track
 

The weather was good this morning: 58° F and -238 ft DA. I ran a new personal best: 11.420 @ 122.64 MPH and another run with a 1.697 60'.

Today I was trying a new cooling mod: I put two 5.2" Spal fans on the heat exchanger and ran them the whole time I was in the staging lanes. It dropped my starting IATs by 10-15° F.


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Good for you bro. See how negative da helps:naughty:

Nice run. Do you know what your IATs were?

What tires are you running for traction ?

IAT on that run started at 93° and ended at 158°. Tires are Hoosier DOT Drag Radials on the 16" CLK rims @ 14 PSI.

What was in the other lane?

I wish I was lol

A street-driven Chevy II Nova with a twin turbo SBC. It can run in the 8's when everything is working right. He beat me on that time trial, but didn't make it into eliminations so technically, I beat him. ;-)

Good job> Is this your first time running the DOT drag radial? There's a climb of ~3mph with your trap ,too as well, if you've not added any mods... Congrats!

No, I've been using the same tires for over a year. Yesterday was the first time I've cut a sub-1.700 60' time though.

The only thing that changed from a few weeks ago was the weather and the cooling fans I mounted to the H/X.

Here are a few pics from yesterday. Photo credit goes to the wife of the guy in the Firebird. He beat me in the final round to leave me runner-up.



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That Wrinkle!!! Looking good. She is definitely moving.

Strong, congrats.

Nice run!

Did the fans fit behind the HE?

I mounted them in front of the HE. They are pusher fans. I have two right now but there is room for a third. I haven't decided if I should add a third or not. I'll wait and see how effective they are on a warm sunny day first.

I have to believe this would help me in my commute. Much of it is stop & go traffic, but at the end, it's a free for all where I always seem to be next to a Vette/Camaro or Audi, while my IATs are over 110*

I await your report

The fans seem to have been a good investment. I ran at the Woodburn Import Faceoff last weekend in the brackets and managed to end up in the finals! Unfortunately I redlit and gave away first place.

My starting IATs were between 93-95 degrees all day long. By the last few rounds I was running about every 15 minutes and still kept my times consistent.

DA was between 1000 - 1250' and my ETs were between 11.56 - 11.65 although I only had three runs all day that were run flat out the whole way.

have you always run 14 psi in these tyres? that seems low to me

Yes, I routinely how down to 14 psi with good results.

nice time

Ive always thought about running fans for the HE. Do you run them while car is sitting also? Or just when car is on.

I thought about running the IC pump and HE fans to accessory power and run them while waiting.

Wow, starting IAT below 100 sounds great! Thanks for sharing.

I was going to wire them to run whenever the pump is on, but I couldn't bring myself to hack into the factory harness. I pulled power off the back of the alternator, ran it over by the cabin air filter, put a 15A inline fuse and a pull switch, and then down to the fans. No factory wiring was harmed in the making of this mod! I leave them turned on all day at the track (whether the car is running or not) and I make sure to start the car and rev it once (to start the pump) at least 5 minutes before a race.

Tomorrow I get to see how they work at an AutoCross on a 95 degree day. ;-)

Are the fans in front or behind the heatexchanger. Pic?

There ya go

Good going Joe. Do you have a link of the fans you used and how you mounted them.