Yes it is an old design---still available all over. Its called a "cool-can"

 

Does the kill switch have to be visable from the back side? could you hide it? Say behind the plate? Behind the bumper? I dont like the idea of haveing that there on a street driven truck...

 

I have my kill switch mounted on the outside of the battery box and have always made it thru tech. I would still like to have the NHRA and IHRA rule on this just in case

 

Hi Guys: Sorry for not posting too much latly ive been away racing and trying to catch up on e-mails and phone calls... On the cooler box it is an alluminium box with 23 ft. of 5/8 allum. tubing coiled up inside.. the intercooler coolant runs thru these lines in the box. we throw in 2 bags of ice mixed with water and we turn on the switch to activate the coolant pump which will circulate the coolant thru the icy water that is 32* this will drop the intercooler temps dramatically! which will in return make significant horse power and Torque! i did a dyno pull without the ice in the box and i made 380.5 h.p & 428.7 torque ( keep in mind it was 90* air temps) we then put in the ice and circulated the pump for 5 min. the next pull was 398.3 & 495.8 torque! we also had a heat gun the intercooler temp was 133* without the ice after the 1st pull and 68* on the 2nd pull with the ice.. this definatly made a big difference. and without doubt when the outside temps get back to the 50's and lower their will be even MORE power to be had! hope this helps! JL

 

any one else know anything about if the swtich has to be visable?

 

The way the NHRA rules read the switch must be on the rearmost part of the vehicle Unless "class requirements" changes the meaning Anyone know??


ELECTRICAL/CONTROL: 8

8.1 BATTERIES

All batteries must be securely mounted and may not be relocated into the driver or passenger compartments. Rear firewall of .024-inch (.6 mm) steel or .032-inch (.8 mm) aluminum (including package tray) required when battery is re-located in trunk. In lieu of rear firewall, battery may be located in a sealed .024-inch (.6 mm) or .032-inch (.8 mm) aluminum, or FIA accepted poly box. If sealed box is used in lieu of rear firewall, box may not be used to secure battery, and must be vented outside of body. Strapping tape prohibited. A maximum of two automobile batteries, or 150 pounds (68 kg) combined maximum weight (unless otherwise specified in Class Requirements) is permitted. Metal battery hold-down straps mandatory. Hold-down bolts must be minimum 3/8-inch (9.53 mm) if battery is relocated from stock and other than stock hold-downs are used ("J" hooks prohibited or must have open end welded shut.).

8.4 MASTER CUTOFF

Mandatory when battery is relocated, or as outlined in Class Requirements. An electrical power cutoff switch (one only) must be installed on the rearmost part of each vehicle and be easily accessible from outside the car body. This cutoff switch must be connected to the positive side of the electrical system and must stop all electrical functions including magneto ignition. The external control switch for this cutoff switch will be clearly indicated by a red flash inside a white-edged blue triangle with a base of at least 12 cm (see drawing 25). The positions must be clearly indicated with the word "OFF". If switch is "push/pull" type, push must be the action for shutting off the electrical system, pull to turn it on. Any rods or cables used to activate the switch must be minimum 1/8-inch (3.2 mm) diameter. Plastic or keyed switches prohibited. Switches and/or controls must be located behind rear wheels on rear engine dragsters.

 

Looks like one is needed.... But it didn't say anything about being easialy seen, but easialy accessible. So putting it behind the bumper is not an option, but behide the licence plate and have a flip out licence plate would be? I just done like the idea of haveing a switch out where everyone could mess with it when you are shopping or what ever.