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post #1 of 3 (permalink) Old 04-22-02, 12:17 AM Thread Starter
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Rental cars + N20

This is a great story of Saturday Afternoon fun by a Canadian Auto magazine.
Ever want to nitrous your ride, but were afraid you'd grenade your mega-dollar motor into smithereens, or trash your daily driver?

Well, fear no more. For the measly sum of $19.95 (US$), we can absolutely guarantee that you won't blow YOUR motor. How? Heh heh heh. Just rent a car from your local, smiling Thrifty agent. His motor + your nitrous system = no problem. Experience the thrill of nitrous, totally uninhibited.
No longer will you feel the urge to back off because you're
afraid of scattering YOUR dollars along the side of the road or at the strip. It's like hot fudge sundaes without the guilt.
Mopar Action's staff, the same people who brought you the Rental Car Nats and the famous "push-o-war" (nose-to-nose burnouts), are out on a brief furlough from Nurse Ratchet's psycho ward, and will outdo themselves again by showing you how to knock over 3 seconds off a bone stock Neon. Yeah, you got it! 16.90 @ 81 MPH to a zero-traction 13.82 @ 102. Have we got chrome-moly spheres, or what?

We slammed together a super-simple N2O system for our bone stock 3-speed automatic rent-a-Neon (with 13-inch wheels!) consisted of readily available parts from the NOS nitrous catalogue and the local NAPA parts store. Our goal was to make no engine mods and unbolt nothing from the car during installation. In other words, we wanted to be smarter than O.J., and leave no incriminating evidence behind (is America a great country, or what?)

The system consisted of an N20 tank held in the back seat by the lap and shoulder belt, a length of braided hose laying on the carpet, and routed through the unused clutch-cable firewall hole, the cheapest electric fuel pump we could find, nitrous and fuel solenoids and two simple injectors. The injectors consisted of nothing more than two short lengths of 3/16" brake line tubing with the solenoids attached at one end and 2 NOS-modified "AN" fittings that accept NOS nitrous and fuel-metering jets on the other end.

A painless incision into the soft plastic air box hose allowed N2O and fuel to be injected directly above the throttle body. The whole deal was held in place by duct tape and cable ties. Replaceable jets allowed precision tuning of the system to any level of insanity desired.

Auxiliary fuel (alcohol "drygas") was stored in the windshield washer reservoir and the small electric pump was added to supply fuel (the windshield wiper fluid pump will not supply enough fuel) to a solenoid. This set-up was rigged into the horn wiring to open the solenoids when you punch the horn button (we did disconnect the horn button).

So how did it work? Awesome. Simply awesome. We started out with a 50 HP nitrous jet with 100% excess fuel. Hitting the horn at 4000 RPM in 2nd gear felt like 15 lbs of boost. Were we happy?

Nope! Onward to the 75 HP jet and only 50% excess fuel. The Neon was amazing. We worked up the guts for 1800 RPM launches in first gear. OOPS out of nitrous, before you can say: "Thrifty."Luckily, we had brought a second bottle.

The entire Mopar Action staff flogged the Neon mercilessly, but we couldn't break it (yet). The high low?) point came when "Crazy" Eddie Yeznaian, intrepid rally racer and wildebeest extraordinaire, actually power-braked the car to the floor, cut the wheel to the left, and hit the nitrous in reverse. Nothin' like nitrous doughnuts after a hard day at the office! (Since this was done in the rain, does that make it Dunkin' Donuts?) If you can imagine what it must be like to be trapped in a spinning top at 200 RPM you get the idea. Where are the air-sickness bags for this ride? H-E-L-L-L-P!

After the second full 10 pound bottle of nitrous had been
greedily half-guzzled by the motor, we decided to go for broke before it was empty. We slipped in the killer 150 HP jets. Is this sick, or what? We more than doubled the stock HP output! Jeeez! 13.82 @ 102 mph The motor took first gear launches at 2000 RPM with cylinder pressures that should have shot the plugs through the hood, and exhaust gas temps that were slightly hotter than the surface of the sun.

Could the Neon go faster? And, mainly, would the converter stay in the transaxle, or launch like a Saturn rocket and slice our legs off at the knees? (And, do they rent hand-control Neons?) For our last runs of the day, we leaned out the fuel jet for only 5% excess fuel and stuck our guinea pig editor, Cliff "Pleeeeease don't blow the motor, guys!" Gromer behind the wheel.

For his first duel, Cliff matched himself up with an automatic Mustang GT at the track. The pony car came out of the shoot even with the Neon, and pulled ahead by the 300-ft mark. The Neon, now in second, gets juiced by Gromer. Result? Like taking candy from a baby. Cliff's little rent-a-car was so far out on the 'Stang that he was able to back off in third, turning a 14.15 at 96.7.

Later, in an impromptu street run from a 10 mph roll-on, Cliff, the sick puppy that he is, hit the horn button in first gear, right on the "3" count, the 2-litre Twinkie motor screamed for mercy, the tires spun all the way through first gear. We were fender to fender with a fast 440-6 Challenger R/T. He ripped his piston-grip to second, but we pulled ahead. Clifford boiled the tires big-time into second gear, allowing the R/T to pull alongside. The Neon mini-motor wound tight-right to the rev
limiter. Did Cliff lift? Did he back off? No chance! Ka-boom! A glowing three-foot fireball barked out of each side of the hood, and rolled back over the windshield. Cheeez! This actually caused the R/T driver to lift, but not Cliff! Wow. Say goodbye to Neon.

We pulled over, fully expecting to see rods hanging out of the block. Surprise. Only the airbox is blown apart. With the leaned out fuel system and the motor running so far into the rev limiter that the stock injectors were shut completely off, we must a floated the valves and backfired through the intake system. The motor was running a little rough (a slight understatement) and we're sure we bent at least one valve, or, more likely, blew the head off of a couple. Needless to say it was the best $19.95 we ever spent. We gassed the Neon back up and limped back to the ever-smiling counterperson.

You know, somebody actually complimented me on my driving today. They left a little note on the windscreen. It said, 'Parking Fine.'So that was nice.

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post #2 of 3 (permalink) Old 04-22-02, 12:26 AM
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LMAO.....hit the horn for a nitrous boost - 13 seconds faaark!!!
post #3 of 3 (permalink) Old 04-22-02, 01:09 AM
***** Idiot....
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Join Date: Feb 2001
Location: The Sticks of Central TX
Posts: 10,560
Been there done that. Actually was going to do that this last weekend when i was at The AIS Charity Racing event in Cecil County Drag way. I had rented a Mustang, but could not send up an EFI kit in time. I sold all theones i had in stock for the Ford. I called the company to send one up and the earliest was going to be monday.

I have done it to a PT Cruiser. It was needlessly trashed when were done. They know have clauses in the T&C that says if you are caught doing anything of the sorts then any damages incured will be billed to you.

I checked the Hertz agreement and it was in there.

Trust me it is a fun thing to do.
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