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Post by Rob Bell on Feb 16, 2004 6:36:21 GMT -5
Okay Andy - come on, give us the low down and Technical specification for the NOS kit you've just bought (and if this is secret squirrel, feel free to move the thread  ) |
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Post by ScarletFever on Feb 16, 2004 8:48:55 GMT -5
Came from Newport NOS Systems, details on thier website www.newport-nos-systems.com/catalog.0.htmlCost £350.00 and they said is worth +25bhp. Here's how it works: It's a 'wet' system, this means it injects fuel with the NO. The injector is a T piece so the fuel and NO is kept seperate right up to the injector, which is sited in the connection pipe between the air filter and the throttle body. Basically it is injected post air filter, with a small amount of fuel. The system is 'armed' from a switch on the dash, when armed the NO is only injected when the accelerator is pressed flat to the floor (microswitch on the throttle body cam) so basically the bottle will last ages as you will only use it when you are under full acceleration. How often do you plant the loud pedal flat to the floor? I hardly ever do - only when overtaking and then, only when i misscalculate the distances and panic a bit! LOL Therefore it only comes in when you really need it - which is great as far as i am concerned. Regarding the switch on the dash, i have asked Bill and Victoria to spray a MY2K front fog switch up in red for me, but Cannonball Bob put a post on the BBS this morning saying he might be able to get hold of a red toggle switch from an MOD helicopter that says ARMED and SAFE - how cool is that?!  Only real issue is where to mount the NOS bottle. I don't want it in the boot if i can help it (due to fitted luggage). Got some ideas but need to sort them out fully. |
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Post by Rob Bell on Feb 16, 2004 9:07:31 GMT -5
Weren't you thinking of storing the bottle next to the fuel tank behind the removable passenger bulkhead panel Andy? Or is this a too-impractical a location?
The kit sounds interesting! Bob's toggle switch idea sounds fantastic! ROFL! ;D But perhaps a red-painted fog-switch would be more subtle?
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Post by Neil Loud Fer and Labrat on Feb 16, 2004 9:26:04 GMT -5
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Post by ScarletFever on Feb 16, 2004 11:42:03 GMT -5
This is still a possibility, there are however two issues. One is the size of the NOS tank, it is longer than i expected and thus i am not sure if there will be enough depth there. The other is perforation of the membrane - fuel fumes in the cabin etc. So, Bill and i had a chat about it and he thinks it may be possible to remove the backing to the drop down bin, create a box with a pair of straps attached, insert the tank here (it is only about 100mm diameter) and then hollow out the inside of the drop down bin lid so that is can be closed to conceal the tank completely. Sounds cool to me! As you know i am not keen on fitting it inside the boot, not only because i won't be able to use my fitted luggage, but also in the event of an accident (god forbid)i'm not too keen on having it crushed!  But if all else fails then this is a last resort. Also thought about maybe mounting it underneath the boot lid in the curvature, again the same issues apply. One last option is behind the shroud panel under the front bonnet - again crash worthyness is a problem, but this is actually quite a good place for it IMO. |
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Post by Rob Bell on Feb 16, 2004 11:52:55 GMT -5
Hmm - you could be right about the front bulk head - there might actually be space for it too: a case for careful measurement. Ought to be reasonably safe I'd have thought: lots of open crash structure there to protect the bottle.
Plus, if behind the plastic shround trim, it would be easy to get to - whereas it may be tricky if hidden up inside the dash?
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Post by ScarletFever on Feb 16, 2004 12:19:19 GMT -5
Yep, could be a good place for it. I can't see me needing to get to it very often and it would be concealed from prying eyes too! Only other downside to this is the hose run from the bottle to the engine - not sure how much pipework i've got to play with. Logic dictates that with a rear mounted engine and a switch required on the dash, the most cable/pipeline efficient place for the bottle is in the middle somewhere - i.e. the cabin. I don't want the bottle on show (plus i suspect i need to protect it from direct sunlight) and this therefore narrows the options somewhat. To be honest, i haven't opened the fitting kit yet and am not sure what i have to play with. Fitting instructions were supposed to be on thier website but i haven't found any yet. Will check the bag of bits when i get home and if they are missing then i'll give them a call (but it ain't exactly rocket science - which is quite an ironic statment!)  Only got two real concerns other than bottle mounting. I've never been very good with auto-electrics and i'm not sure other than wiring in a switch what is involved at the moment. And it being a wet system, somewhere along the line i need to tap into the fuel system This is why i have started talking to Bill (i'll do the easy stuff - he can do the hard bits! LOL!!! ) |
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Post by Rob Bell on Feb 16, 2004 13:37:50 GMT -5
Aren't the NOS bottles usually stored in the boot of a front-engined car? This being the case, you ought to have enough pipe work to do the opposite (as it were) - plus, what with the MGF being a relatively short car, the chances are that you'll be okay.
Where would you mount the pipework? Along the gear-selector central tunnel? Or under the car's floor pan?
I think that it would be a good idea to enlist Bill's help. I doubt that there is anything too seriously complicated, but Bill's experience should really help out!
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Post by Neil Loud Fer and Labrat on Feb 17, 2004 5:15:19 GMT -5
NOS
Fantastic
Go for it SF
I think that the drop down bin location is best, and should be pretty safe so long as it's screwed in securely, and there actually is enough room for it.
George Mcthingey of GSM fitted his bottle in the boot of the ZS and yes it is big! I hope there is enough room for it Andy
otherwise how about behind the passenger seat? ok the seat wont be able to go back all the way but with proper mounts etc coud be good..or in the passenger foot well. OK it will be visible but isnt that what you want?
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Post by ScarletFever on Feb 17, 2004 6:00:09 GMT -5
He he he - i know what you mean by it being on show Neil. But i also kinda like th emore subtle approach of it all being hidden except for a BIG RED BUTTON on the dash! ;D "What's that button do?" -flick- -stamp- "Whoooooooooohooooooooo!" The bottle is actually fairly compact (surprisingly, i too had only seen large diameter bottles). I'd say it was 100mm diameter by say 400mm long. It's also black (not shiney or anything) and is quite plain (nothing a few stickers couldn't sort out!) It therefore isn't something that is crying out to be on show. More like a very small Hospital air tank/mechanic's oxy/aceteline tank than a boy racer 'look at me i've got NOS' affair. Will open the bag of bits and see what's there tonight and also get some pictures. |
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Post by Rob Bell on Feb 17, 2004 10:11:14 GMT -5
Pictures would be great mate |
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Post by Kingsley on Feb 18, 2004 6:17:18 GMT -5
Don't know how nos would work with throttle bodies?
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Post by Rob Bell on Feb 18, 2004 6:25:03 GMT -5
No idea either! I'd guess you'd need a 'wet' [fuel + NOS] line to each of the throttle bodies Kingsley... You'd probably need some specialist advice if this were "your chosen path" |
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Post by Neil Loud Fer and Labrat on Feb 18, 2004 15:46:49 GMT -5
Naa it's probably a single wet point fitted either before or after the main throttle body ( you know the black 48mm or ally 52mm thing)
I cant remember where George Mcthingeys fitted but it looked bloody scary with braided hoses everwhere and it REALLY delivered...260bhp!!!
I would say though SF that your engine is likely to be fairly safe as Janspeed made a massively powerful K series for the bonneville speed car EX 131 and didnt modify the bottom end at all!!!
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Post by ScarletFever on Feb 19, 2004 7:21:35 GMT -5
Neil,
Multiple throttle bodies are just that, there are 4 of them, one per cylinder and they are mounted directly onto the head. The TBs have trumpets ont he end and an airfilter fitted directly to this, therefore there isn't a convenient section of pipe to mount the NOS injector too, furthermore you'd need 4 of them!
The only thing that occurs to me is the fuel rail. Does the MTBs use a single fuel rail to feed each of the throttle bodies or are there four seperate fuel lines? This could be a common point for the NOS to be injected (and i suppose it would be a dry system too)
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