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View Full Version : Northern bretheren with NOS



CRUZTAKER
09-26-2007, 04:26 PM
A year or two back a bunch of us took part in the Zez group buy. A few of us, namely myself, unfamiliar with NOS, and not thinking about the cooler temps up this way, likely are experiencing some major performance losses with our basic kits.

For some reason, it took me this long to come to the realization that for the better part of the time, my NOS tank hangs anywhere from 65 to 75 degrees. In Ohio, overnight, and indoor parked, it rarely sees excessive sunshine in the trunk, and even when it does, the tank rarely goes much beyond 76 degrees.

I recently learned that NOS works best, and most consistant, when the tank is at or near 90 degrees, and remains at a stable constant temp.

Today I stopped at Summit and bought ZEX's automatic heater blanket for $127. It was really easy to hook up, this kit had no relays, just a switch, some wire, and a few appropriate connectors. It reqiured a 15a circuit, and low and behold, my OEM CD-Changer's purple striped wire was fed to a dedicated 15a fuse on the FDP under the dash on FP-1, and was always hot. I placed a switch and a fuse holder in between the load and blanket.

I never use the changer, strickly radio and iPod. This worked out nicely and made for a quick and seamless install. No extra draw on the circuit.

My tank now remains constant, and my ET's at the track will be far easier to calculate between runs when the day starts cool, gets warm, and ends cool again.

I will test on Friday!

FastMerc
09-26-2007, 04:34 PM
I wish I was going. but work! :puke: Ive tested my tune and gears on the street, Oh what fun. Keep us posted cant wait to hear.

sabtaj1
09-26-2007, 07:22 PM
Great Idea! Thanks. I havent hooked mine up yet. I am planning on testing mine out friday night at cordova dragway. I am interested to see what yours runs and what mine runs. I will let you know. Ofcourse I will be running stock rears though.

Pat
09-26-2007, 07:41 PM
Good post, never gave temps other than IAT much thought. Since I plan to race in the cooler months that seems a good product to buy.

Thanks,

Pat

sabtaj1
09-26-2007, 07:54 PM
Its a very good product to buy! Gotta keep the bottle pressure up! No matter what. You can get great deals on ebay. Trust me I know!

Zack
09-27-2007, 05:12 AM
Barry, this may not affect YOUR car, but many things need to be considered now that you are using a heater. You actually went about it backwards.

When you get a dyno tune, say at 75 degrees ambient, and it take 5 pulls to get the car tuned, you are now basing the A/F off of a 75 degree bottle that is half empty or more.

No you go fill the bottle up, add the heater and make a pass with the bottle at optimum temp and pressure for the run. Where do you think the A/F is gonna be? It may be close, but I guarantee its not gonna be the same as it was on the dyno.

Every tuner Ive talked to about NOS insists you bring 2 bottles to the dyno and run a heater. Many tuners in my area wont even tune a NOS car anymore due to lean spikes and inconsistencies.

Its YOUR car, but know the risks.

CRUZTAKER
09-27-2007, 07:33 PM
Lidio had me put his heater to the bottle before every pull. He checked the bottle temp with one of those fancy laser thermo-meters prior to each pull as well. Each pull was made with a bottle temp of 90 degrees.

Am I good to go in your opinion?

KillJoy
09-27-2007, 07:36 PM
Am I good to go in your opinion?


:up:

Sounds good to me B....

Good luck tomorrow!!

KillJoy