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Old December 18th, 2009, 05:50 PM   #1
Kirk 67bug
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Default Nitrous Installation
Re:: 2387 dual carbs   

Hi I have been looking for a place like this, I have had a 57 sigle cab for about the last 12 years that is full of patina, this latest bug that I have been working on is a little more stored with a few old touches left like the real EMPI steering wheel that was in it when I found the bug about 5 years ago. I live in MN about 25 miles north of the twin cities, so Has anyone installed a NOS system in there bug lately and did you have any problems. I want to install one in a 67 bug with a 2387 engine.

Last edited by Kirk 67bug; December 18th, 2009 at 06:38 PM. Reason: to add intro
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Old December 18th, 2009, 06:20 PM   #2
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Default Re: Nitrous Installation

intro?
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Old December 18th, 2009, 07:09 PM   #3
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Default Re: Nitrous Installation

try again kirk.....you posted 2 threads in the intro section that werent an intro, just the same question you asked here 2 more times.
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Old December 18th, 2009, 07:17 PM   #4
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Default Re: Nitrous Installation

just trying to figure this thread thing-out, better at working on VW,s then being online, but I will keep on trying
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Old December 18th, 2009, 07:49 PM   #5
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Default Re: Nitrous Installation

Your gonna spend alot of money on a 2387 and then burn it up with Nitrous. I think the 2387 is gonna be fast enough to begin with. At what point would you even need to use the nitrous.
If you really must have the "biggest/bestest" thing going for you then put a built up T4 with a turbo in your beetle. it will last longer and give you your Bragging rights as to how much you spent and how big the engine is.....
I think you would suprised at what a 1915 with a turbo will do by the way.
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Old December 19th, 2009, 04:50 AM   #6
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Default Re: Nitrous Installation

If you have it tuned correctly,nitrous will not burn /melt/kill your engine. Check out ultimateaircooled.com, there is a section on nitrous. I know a few of the guys on there that know their stuff.http://ultimateaircooled.com/simplem...php?board=26.0
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Old December 19th, 2009, 08:14 AM   #7
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Default Re: Nitrous Installation

Well it is not about spending the most, it's about going fast and I would most likely use it at the drag strip. But I do drive this bug and it is a blast. I have spent sometime sitting the engine up. I have a bigger oil sump a remote mounted oil filter and oil cooler with a fan. the last thing that I want to do is burn it up! Thanks for your tip on the web site to check-out. I also want to put it on a dyno and make sure everything is just right I hope.
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Old December 19th, 2009, 08:36 AM   #8
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Default Re: Nitrous Installation

Did you build it as a nitrous motor or more of a street motor. I know there are some differences in set up of booth. I know coating the pistons would help but unsure of any of the other particulars.
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Old December 19th, 2009, 09:14 AM   #9
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The compression is 9-1 and the lower end is pretty heavy duty with everything being balanced and the flywheel is wedgemated to the crank. and the pistons are coated. I have a an electric fuel pump for the added fuel that will be needed when you spray nitrous.
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Old December 19th, 2009, 11:49 AM   #10
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Default Re: Nitrous Installation

On american cars some guys will retard timing when spraying . You can get a unit that will do it automatically. I've never had a system but looked into it and fuel pressure and ignition timing were the most important to making it reliable.
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Old December 19th, 2009, 11:53 AM   #11
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automatic control (o2 sensor controlled for lean condition)for fuel pump or are you just making it switch with full throttle
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Old December 20th, 2009, 06:39 AM   #12
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I'm not sure maybe some kind of a progressive system.
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Old December 20th, 2009, 07:46 AM   #13
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So a 50 75 100 shot in progression. The only way you can progress fuel though is through a regulator somehow. Basically step it from 5 7 10 lbs or whatever the engine requires.
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Old December 20th, 2009, 09:02 AM   #14
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Default Re: Nitrous Installation

honestly how many guys truly use Nos.here?...I'd go to a place where you can get put in the right direction the first time. Nos. WILL kill any motor from stock to crazy if plumbed wrong and the wrong fuel mixture is used. not to mention nozzle location and bottle pressure are insanely imortantant.
many of my freind run Nos. and it ain't easy to get dialed in,presure has to matched to fuel pressure or your gonna lift a head or burn a piston even with a 50 shot...remember thats double hp for stock and 20% of a 2387,
I'd go to Ulitimate Aircooled or shop talk for these questions dude. everyone here I'm sure would love to help but hey don't need to hear "how the motor gernaded and what did I do wrong?"...and have some guilt cuz they tried to give you some pointers on a volitile topic.

good luck with yer search plenty of info out there
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Old December 20th, 2009, 11:24 AM   #15
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Thanks for the help, I'm not sure of what I'm going to do yet but I'm just checking everything out and I like to here from everyone and what they have to say. It is winter here like most places. I look at the bug everyday in my garage so I have lots of time to do something if I want to. working on and engine for my 57 single cab right now.
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Old December 20th, 2009, 11:37 AM   #16
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Default Re: Nitrous Installation

good man slow and steady wins the race...ya don't wanna mess with Nos with out a good resource and research background...love the stuff and that and meth will be on the hot rod by the end of the summer but I'm having the boys at Oceanstate perfromance handle the prep. before I go and blow my shit up.
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Old December 21st, 2009, 05:19 PM   #17
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Default Re: Nitrous Installation

you will find that the second piston ring is your limiting factor. at some point the land will break and push into the oil ring. then you get melted aluminum down the rod and blow the valve covers off. just depends on how long you want the motor to last. i ran race fuel and nitrous/ liquid propane injection .

one thing to keep in mind "nitrous runs best just before something breaks!"

http://www.youtube.com/watch?v=PYf5W9CLQ1I

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Old December 21st, 2009, 06:45 PM   #18
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Default Re: Nitrous Installation

I ran a 100 shot on my Chevy 383 stroker. But I read as much info as I could, before I even purchased the kit. I was advised that with my hypereutectic pistons, not to spray more than 100 shot, or it would start eating the piston crowns. I ran an MSD retard box, that would only retard when the nitrous was activated, and that has a four degree retard pill in it. On top of that I mechanically retarded the motor another four degrees at the distributor. I might have been okay with just the retard provided by the box, but I wanted to keep the motor healthy, and just work on consistancy, which is a bitch with nitrous.

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Old December 21st, 2009, 07:24 PM   #19
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Default Re: Nitrous Installation

v8's are a different situation...the heads will not lift off nearly as easy as a vw...heat is not a vw's freind,fuel and nos delivery is crutial on a vw to the point of no return.

it's a application that needs a real tuners touch and it isn't for a novice.
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Old December 21st, 2009, 07:48 PM   #20
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Default Re: Nitrous Installation

Video of "Jersey" Joe ( light blue bug) running his nitrous street bug in the Unlimited street class at Farmington dragway in october. Joe won the race last year and he knows his stuff.
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